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  • Cell Line  (2,037)
  • Ecosystem
  • American Association for the Advancement of Science (AAAS)  (2,561)
  • Irkutsk : Ross. Akad. Nauk, Sibirskoe Otd., Inst. Zemnoj Kory
  • Krefeld : Geologischer Dienst Nordhein-Westfalen
  • Wiley
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  • 1
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    RNA splicing is a primary link between genetic variation and disease (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-04-30
    Description: Noncoding variants play a central role in the genetics of complex traits, but we still lack a full understanding of the molecular pathways through which they act. We quantified the contribution of cis-acting genetic effects at all major stages of gene regulation from chromatin to proteins, in Yoruba lymphoblastoid cell lines (LCLs). About ~65% of expression quantitative trait loci (eQTLs) have primary effects on chromatin, whereas the remaining eQTLs are enriched in transcribed regions. Using a novel method, we also detected 2893 splicing QTLs, most of which have little or no effect on gene-level expression. These splicing QTLs are major contributors to complex traits, roughly on a par with variants that affect gene expression levels. Our study provides a comprehensive view of the mechanisms linking genetic variation to variation in human gene regulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Yang I -- van de Geijn, Bryce -- Raj, Anil -- Knowles, David A -- Petti, Allegra A -- Golan, David -- Gilad, Yoav -- Pritchard, Jonathan K -- R01MH084703/MH/NIMH NIH HHS/ -- R01MH101825/MH/NIMH NIH HHS/ -- U01HG007036/HG/NHGRI NIH HHS/ -- U54CA149145/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2016 Apr 29;352(6285):600-4. doi: 10.1126/science.aad9417. Epub 2016 Apr 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Stanford University, Stanford, CA, USA. ; Department of Human Genetics, University of Chicago, Chicago, IL, USA. ; Department of Computer Science, Stanford University, Stanford, CA, USA. Department of Radiology, Stanford University, Stanford, CA, USA. ; Genome Institute, Washington University in St. Louis, St. Louis, MO, USA. ; Department of Human Genetics, University of Chicago, Chicago, IL, USA. gilad@uchicago.edu pritch@stanford.edu. ; Department of Genetics, Stanford University, Stanford, CA, USA. Department of Biology, Stanford University, Stanford, CA, USA. Howard Hughes Medical Institute, Stanford University, Stanford, CA, USA. gilad@uchicago.edu pritch@stanford.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27126046" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Chromatin/metabolism ; *Gene Expression Regulation ; *Genetic Variation ; Genome-Wide Association Study ; Humans ; Immune System Diseases/*genetics ; Lymphocytes/immunology ; Phenotype ; Polymorphism, Single Nucleotide ; *Quantitative Trait Loci ; RNA Splicing/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Precocity in a tiny titanosaur from the Cretaceous of Madagascar (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-04-23
    Description: Sauropod dinosaurs exhibit the largest ontogenetic size range among terrestrial vertebrates, but a dearth of very young individuals has hindered understanding of the beginning of their growth trajectory. A new specimen of Rapetosaurus krausei sheds light on early life in the smallest stage of one of the largest dinosaurs. Bones record rapid growth rates and hatching lines, indicating that this individual weighed ~3.4 kilograms at hatching. Just several weeks later, when it likely succumbed to starvation in a drought-stressed ecosystem, it had reached a mass of ~40 kilograms and was ~35 centimeters tall at the hip. Unexpectedly, Rapetosaurus limb bones grew isometrically throughout their development. Cortical remodeling, limb isometry, and thin calcified hypertrophic metaphyseal cartilages indicate an active, precocial growth strategy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Curry Rogers, Kristina -- Whitney, Megan -- D'Emic, Michael -- Bagley, Brian -- New York, N.Y. -- Science. 2016 Apr 22;352(6284):450-3. doi: 10.1126/science.aaf1509. Epub 2016 Apr 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biology and Geology Departments, Macalester College, St. Paul, MN 55105, USA. rogersk@macalester.edu. ; Department of Biology, University of Washington, Seattle, WA 98185-1800, USA. ; Biology Department, Adelphi University, Garden City, NY 11530-0701, USA. ; Department of Earth Sciences, University of Minnesota, Minneapolis, MN 55455-1333, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27102482" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Weight ; *Bone Development ; Bone and Bones/*anatomy & histology ; Calcification, Physiologic ; Cartilage/anatomy & histology/growth & development ; Dinosaurs/*anatomy & histology/*growth & development ; Droughts ; Ecosystem ; Extremities/anatomy & histology/growth & development ; Madagascar ; Starvation/veterinary
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    RNA biochemistry. Transcriptome-wide distribution and function of RNA hydroxymethylcytosine (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-01-28
    Description: Hydroxymethylcytosine, well described in DNA, occurs also in RNA. Here, we show that hydroxymethylcytosine preferentially marks polyadenylated RNAs and is deposited by Tet in Drosophila. We map the transcriptome-wide hydroxymethylation landscape, revealing hydroxymethylcytosine in the transcripts of many genes, notably in coding sequences, and identify consensus sites for hydroxymethylation. We found that RNA hydroxymethylation can favor mRNA translation. Tet and hydroxymethylated RNA are found to be most abundant in the Drosophila brain, and Tet-deficient fruitflies suffer impaired brain development, accompanied by decreased RNA hydroxymethylation. This study highlights the distribution, localization, and function of cytosine hydroxymethylation and identifies central roles for this modification in Drosophila.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Delatte, Benjamin -- Wang, Fei -- Ngoc, Long Vo -- Collignon, Evelyne -- Bonvin, Elise -- Deplus, Rachel -- Calonne, Emilie -- Hassabi, Bouchra -- Putmans, Pascale -- Awe, Stephan -- Wetzel, Collin -- Kreher, Judith -- Soin, Romuald -- Creppe, Catherine -- Limbach, Patrick A -- Gueydan, Cyril -- Kruys, Veronique -- Brehm, Alexander -- Minakhina, Svetlana -- Defrance, Matthieu -- Steward, Ruth -- Fuks, Francois -- R01 GM089992/GM/NIGMS NIH HHS/ -- T32 CA117846/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2016 Jan 15;351(6270):282-5. doi: 10.1126/science.aac5253.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cancer Epigenetics, Faculty of Medicine, ULB Cancer Research Center (U-CRC), Universite Libre de Bruxelles (ULB), Brussels, Belgium. ; Waksman Institute, Department of Molecular Biology and Biochemistry, Cancer Institute of New Jersey, Rutgers University, Piscataway, NJ, USA. ; Laboratory of Molecular Biology of the Gene, Faculty of Sciences, Universite Libre de Bruxelles, Gosselies, Belgium. ; Institut fur Molekularbiologie und Tumorforschung, Philipps-Universitat Marburg, Marburg, Germany. ; Department of Chemistry, University of Cincinnati, Cincinnati, OH, USA. ; Laboratory of Cancer Epigenetics, Faculty of Medicine, ULB Cancer Research Center (U-CRC), Universite Libre de Bruxelles (ULB), Brussels, Belgium. ffuks@ulb.ac.be.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26816380" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*abnormalities/metabolism ; Cell Line ; Cytosine/*analogs & derivatives/metabolism ; Dioxygenases/genetics/metabolism ; Drosophila melanogaster/genetics/*growth & development/metabolism ; Methylation ; RNA, Messenger/genetics/*metabolism ; Transcriptome
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Transcription factors LRF and BCL11A independently repress expression of fetal hemoglobin (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-01-28
    Description: Genes encoding human beta-type globin undergo a developmental switch from embryonic to fetal to adult-type expression. Mutations in the adult form cause inherited hemoglobinopathies or globin disorders, including sickle cell disease and thalassemia. Some experimental results have suggested that these diseases could be treated by induction of fetal-type hemoglobin (HbF). However, the mechanisms that repress HbF in adults remain unclear. We found that the LRF/ZBTB7A transcription factor occupies fetal gamma-globin genes and maintains the nucleosome density necessary for gamma-globin gene silencing in adults, and that LRF confers its repressive activity through a NuRD repressor complex independent of the fetal globin repressor BCL11A. Our study may provide additional opportunities for therapeutic targeting in the treatment of hemoglobinopathies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4778394/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4778394/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Masuda, Takeshi -- Wang, Xin -- Maeda, Manami -- Canver, Matthew C -- Sher, Falak -- Funnell, Alister P W -- Fisher, Chris -- Suciu, Maria -- Martyn, Gabriella E -- Norton, Laura J -- Zhu, Catherine -- Kurita, Ryo -- Nakamura, Yukio -- Xu, Jian -- Higgs, Douglas R -- Crossley, Merlin -- Bauer, Daniel E -- Orkin, Stuart H -- Kharchenko, Peter V -- Maeda, Takahiro -- R01 AI084905/AI/NIAID NIH HHS/ -- R01 HL032259/HL/NHLBI NIH HHS/ -- R56 DK105001/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2016 Jan 15;351(6270):285-9. doi: 10.1126/science.aad3312.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. ; Department of Biomedical Informatics, Harvard Medical School, Boston, MA 02115, USA. ; Division of Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Stem Cell Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA. ; School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia. ; Medical Research Council, Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, Oxford University, Oxford, UK. ; Cell Engineering Division, RIKEN BioResource Center, Tsukuba, Ibaraki, Japan. ; Cell Engineering Division, RIKEN BioResource Center, Tsukuba, Ibaraki, Japan. Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan. ; Division of Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Stem Cell Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA. Children's Research Institute, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. ; Division of Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Stem Cell Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA. Howard Hughes Medical Institute, Boston, MA 02115, USA. ; Department of Biomedical Informatics, Harvard Medical School, Boston, MA 02115, USA. peter.kharchenko@post.harvard.edu tmaeda@partners.org. ; Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. peter.kharchenko@post.harvard.edu tmaeda@partners.org.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26816381" target="_blank"〉PubMed〈/a〉
    Keywords: Anemia, Sickle Cell/genetics ; Animals ; Carrier Proteins/genetics/*metabolism ; Cell Line ; Chromatin/metabolism ; DNA-Binding Proteins/genetics/*metabolism ; Erythroblasts/cytology ; Erythropoiesis/genetics ; Fetal Hemoglobin/*genetics ; *Gene Silencing ; Humans ; Mice ; Mice, Knockout ; Nuclear Proteins/genetics/*metabolism ; Repressor Proteins/genetics/*metabolism ; Sequence Deletion ; Thalassemia/genetics ; Transcription Factors/genetics/*metabolism ; gamma-Globins/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 5
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    Enhanced seasonal CO2 exchange caused by amplified plant productivity in northern ecosystems (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-01-23
    Description: Atmospheric monitoring of high northern latitudes (above 40 degrees N) has shown an enhanced seasonal cycle of carbon dioxide (CO2) since the 1960s, but the underlying mechanisms are not yet fully understood. The much stronger increase in high latitudes relative to low ones suggests that northern ecosystems are experiencing large changes in vegetation and carbon cycle dynamics. We found that the latitudinal gradient of the increasing CO2 amplitude is mainly driven by positive trends in photosynthetic carbon uptake caused by recent climate change and mediated by changing vegetation cover in northern ecosystems. Our results underscore the importance of climate-vegetation-carbon cycle feedbacks at high latitudes; moreover, they indicate that in recent decades, photosynthetic carbon uptake has reacted much more strongly to warming than have carbon release processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Forkel, Matthias -- Carvalhais, Nuno -- Rodenbeck, Christian -- Keeling, Ralph -- Heimann, Martin -- Thonicke, Kirsten -- Zaehle, Sonke -- Reichstein, Markus -- New York, N.Y. -- Science. 2016 Feb 12;351(6274):696-9. doi: 10.1126/science.aac4971. Epub 2016 Jan 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute for Biogeochemistry, 07745 Jena, Germany. matthias.forkel@geo.tuwien.ac.at ncarval@bgc-jena.mpg.de. ; Max Planck Institute for Biogeochemistry, 07745 Jena, Germany. CENSE, Departamento de Ciencias e Engenharia do Ambiente, Faculdade de Ciencias e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal. matthias.forkel@geo.tuwien.ac.at ncarval@bgc-jena.mpg.de. ; Max Planck Institute for Biogeochemistry, 07745 Jena, Germany. ; Scripps Institution of Oceanography, La Jolla, CA 92093, USA. ; Max Planck Institute for Biogeochemistry, 07745 Jena, Germany. Department of Physical Sciences, University of Helsinki, Helsinki, Finland. ; Potsdam Institute for Climate Impact Research, 14473 Potsdam, Germany. ; Max Planck Institute for Biogeochemistry, 07745 Jena, Germany. Michael-Stifel-Center Jena for Data-driven and Simulation Science, 07743 Jena, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26797146" target="_blank"〉PubMed〈/a〉
    Keywords: Atmosphere ; *Carbon Cycle ; Carbon Dioxide/*metabolism ; *Climate Change ; Ecosystem ; Environmental Monitoring ; Photosynthesis ; Plants/*metabolism ; Seasons
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Parasites resistant to the antimalarial atovaquone fail to transmit by mosquitoes (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-04-16
    Description: Drug resistance compromises control of malaria. Here, we show that resistance to a commonly used antimalarial medication, atovaquone, is apparently unable to spread. Atovaquone pressure selects parasites with mutations in cytochrome b, a respiratory protein with low but essential activity in the mammalian blood phase of the parasite life cycle. Resistance mutations rescue parasites from the drug but later prove lethal in the mosquito phase, where parasites require full respiration. Unable to respire efficiently, resistant parasites fail to complete mosquito development, arresting their life cycle. Because cytochrome b is encoded by the maternally inherited parasite mitochondrion, even outcrossing with wild-type strains cannot facilitate spread of resistance. Lack of transmission suggests that resistance will be unable to spread in the field, greatly enhancing the utility of atovaquone in malaria control.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goodman, Christopher D -- Siregar, Josephine E -- Mollard, Vanessa -- Vega-Rodriguez, Joel -- Syafruddin, Din -- Matsuoka, Hiroyuki -- Matsuzaki, Motomichi -- Toyama, Tomoko -- Sturm, Angelika -- Cozijnsen, Anton -- Jacobs-Lorena, Marcelo -- Kita, Kiyoshi -- Marzuki, Sangkot -- McFadden, Geoffrey I -- AI031478/AI/NIAID NIH HHS/ -- RR00052/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2016 Apr 15;352(6283):349-53. doi: 10.1126/science.aad9279.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of BioSciences, University of Melbourne, Melbourne, VIC 3010, Australia. gim@unimelb.edu.au deang@unimelb.edu.au. ; School of BioSciences, University of Melbourne, Melbourne, VIC 3010, Australia. Eijkman Institute for Molecular Biology, JI Diponegoro no. 69, Jakarta, 10430, Indonesia. Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. ; School of BioSciences, University of Melbourne, Melbourne, VIC 3010, Australia. ; Johns Hopkins University Bloomberg School of Public Health, Department of Molecular Microbiology and Immunology, Malaria Research Institute, Baltimore, MD 21205, USA. ; Eijkman Institute for Molecular Biology, JI Diponegoro no. 69, Jakarta, 10430, Indonesia. Department of Parasitology, Faculty of Medicine, Hasanuddin University, Jalan Perintis Kemerdekaan Km10, Makassar 90245, Indonesia. ; Division of Medical Zoology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan. ; Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. ; Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. School of Tropical Medicine and Global Health, Nagasaki University, Sakamoto, Nagasaki 852-8523, Japan. ; Eijkman Institute for Molecular Biology, JI Diponegoro no. 69, Jakarta, 10430, Indonesia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27081071" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anopheles/*parasitology ; Antimalarials/*pharmacology/therapeutic use ; Atovaquone/*pharmacology/therapeutic use ; Cell Line ; Cytochromes b/*genetics ; Drug Resistance/*genetics ; Genes, Mitochondrial/genetics ; Humans ; Life Cycle Stages/drug effects/genetics ; Malaria/drug therapy/*parasitology/transmission ; Male ; Mice ; Mitochondria/*genetics ; Mutation ; Plasmodium berghei/*drug effects/genetics/growth & development ; Selection, Genetic
    Print ISSN: 0036-8075
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  • 7
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    SOCIAL SCIENCE AND SUSTAINABILITY. Engage key social concepts for sustainability (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-04-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hicks, Christina C -- Levine, Arielle -- Agrawal, Arun -- Basurto, Xavier -- Breslow, Sara J -- Carothers, Courtney -- Charnley, Susan -- Coulthard, Sarah -- Dolsak, Nives -- Donatuto, Jamie -- Garcia-Quijano, Carlos -- Mascia, Michael B -- Norman, Karma -- Poe, Melissa R -- Satterfield, Terre -- St Martin, Kevin -- Levin, Phillip S -- New York, N.Y. -- Science. 2016 Apr 1;352(6281):38-40. doi: 10.1126/science.aad4977.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Ocean Solutions, Stanford University, CA, USA. Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Australia. Lancaster Environment Centre, Lancaster University, UK. christina.hicks@lancaster.ac.uk. ; Geography, San Diego State University, CA, USA. ; School of Natural Resources and the Environment, University of Michigan, USA. ; Nicholas School of the Environment, Duke University, NC, USA. ; Northwest Fisheries Science Center, NOAA, WA, USA. ; School of Fisheries and Ocean Sciences, University of Alaska Fairbanks, USA. ; U.S. Department of Agriculture, Forest Service, USA. ; Northumbria University, UK. ; School of Marine and Environmental Affairs, University of Washington, USA. ; Swinomish Indian Tribal Community, WA, USA. ; Anthropology and Marine Affairs, University of Rhode Island, USA. ; Moore Center for Science, Conservation International, VA, USA. ; Northwest Fisheries Science Center, NOAA, WA, USA. Washington Sea Grant, University of Washington, USA. ; The Institute for Resources, Environment and Sustainability, University of British Columbia, Canada. ; Department of Geography, Rutgers University, NJ, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27034361" target="_blank"〉PubMed〈/a〉
    Keywords: Ecosystem ; Forecasting ; Health ; Humans ; Quality of Life ; *Social Values ; *Value of Life
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  • 8
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    CONSERVATION ECOLOGY. How can higher-yield farming help to spare nature? (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-01-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Phalan, Ben -- Green, Rhys E -- Dicks, Lynn V -- Dotta, Graziela -- Feniuk, Claire -- Lamb, Anthony -- Strassburg, Bernardo B N -- Williams, David R -- zu Ermgassen, Erasmus K H J -- Balmford, Andrew -- BB/J014540/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2016 Jan 29;351(6272):450-1. doi: 10.1126/science.aad0055.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK. btp22@cam.ac.uk. ; Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK. RSPB Centre for Conservation Science, Royal Society for the Prote"〉 RSPB Centre for Conservation Science, Royal Society for the Protection of Birds, Sandy SG19 2DL, UK. ; Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK. ; Laboratorio de Ornitologia, Museu de Ciencias e Tecnologia, PUC-RS, 6681, Porto Alegre, Brazil. ; International Institute for Sustainability, 22460-320 Rio de Janeiro, Brazil. Rio Conservation and Sustainability Science Centre, Department of Geography and the Environment, Pontificia Universidade Catolica, 22453-900 Rio de Janeiro, Brazil.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26823413" target="_blank"〉PubMed〈/a〉
    Keywords: *Agriculture ; Animals ; Cattle ; Ecosystem ; *Environmental Restoration and Remediation ; Equidae ; Felidae ; Livestock ; Sheep
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Ocean plankton. Structure and function of the global ocean microbiome (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-05-23
    Description: Microbes are dominant drivers of biogeochemical processes, yet drawing a global picture of functional diversity, microbial community structure, and their ecological determinants remains a grand challenge. We analyzed 7.2 terabases of metagenomic data from 243 Tara Oceans samples from 68 locations in epipelagic and mesopelagic waters across the globe to generate an ocean microbial reference gene catalog with 〉40 million nonredundant, mostly novel sequences from viruses, prokaryotes, and picoeukaryotes. Using 139 prokaryote-enriched samples, containing 〉35,000 species, we show vertical stratification with epipelagic community composition mostly driven by temperature rather than other environmental factors or geography. We identify ocean microbial core functionality and reveal that 〉73% of its abundance is shared with the human gut microbiome despite the physicochemical differences between these two ecosystems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sunagawa, Shinichi -- Coelho, Luis Pedro -- Chaffron, Samuel -- Kultima, Jens Roat -- Labadie, Karine -- Salazar, Guillem -- Djahanschiri, Bardya -- Zeller, Georg -- Mende, Daniel R -- Alberti, Adriana -- Cornejo-Castillo, Francisco M -- Costea, Paul I -- Cruaud, Corinne -- d'Ovidio, Francesco -- Engelen, Stefan -- Ferrera, Isabel -- Gasol, Josep M -- Guidi, Lionel -- Hildebrand, Falk -- Kokoszka, Florian -- Lepoivre, Cyrille -- Lima-Mendez, Gipsi -- Poulain, Julie -- Poulos, Bonnie T -- Royo-Llonch, Marta -- Sarmento, Hugo -- Vieira-Silva, Sara -- Dimier, Celine -- Picheral, Marc -- Searson, Sarah -- Kandels-Lewis, Stefanie -- Tara Oceans coordinators -- Bowler, Chris -- de Vargas, Colomban -- Gorsky, Gabriel -- Grimsley, Nigel -- Hingamp, Pascal -- Iudicone, Daniele -- Jaillon, Olivier -- Not, Fabrice -- Ogata, Hiroyuki -- Pesant, Stephane -- Speich, Sabrina -- Stemmann, Lars -- Sullivan, Matthew B -- Weissenbach, Jean -- Wincker, Patrick -- Karsenti, Eric -- Raes, Jeroen -- Acinas, Silvia G -- Bork, Peer -- New York, N.Y. -- Science. 2015 May 22;348(6237):1261359. doi: 10.1126/science.1261359.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Structural and Computational Biology, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany. sunagawa@embl.de karsenti@embl.de jeroen.raes@vib-kuleuven.be sacinas@icm.csic.es bork@embl.de. ; Structural and Computational Biology, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany. ; Department of Microbiology and Immunology, Rega Institute, KU Leuven, Herestraat 49, 3000 Leuven, Belgium. Center for the Biology of Disease, VIB, Herestraat 49, 3000 Leuven, Belgium. Department of Applied Biological Sciences, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium. ; CEA-Institut de Genomique, GENOSCOPE, 2 rue Gaston Cremieux, 91057 Evry, France. ; Department of Marine Biology and Oceanography, Institute of Marine Sciences (ICM)-CSIC, Pg. Maritim de la Barceloneta, 37-49, Barcelona E08003, Spain. ; Sorbonne Universites, UPMC, Universite Paris 06, CNRS-IRD-MNHN, LOCEAN Laboratory, 4 Place Jussieu, 75005 Paris France. ; CNRS, UMR 7093, Laboratoire d'Oceanographie de Villefranche-sur-Mer, Observatoire Oceanologique, F-06230 Villefranche-sur-mer, France. Sorbonne Universites, UPMC Universite Paris 06, UMR 7093, LOV, Observatoire Oceanologique, F-06230 Villefranche-sur-mer, France. ; Ecole Normale Superieure, Institut de Biologie de l'ENS (IBENS), and Inserm U1024, and CNRS UMR 8197, F-75005 Paris, France. Laboratoire de Physique des Oceans UBO-IUEM, Place Copernic 29820 Plouzane, France. ; Aix Marseille Universite CNRS IGS UMR 7256, 13288 Marseille, France. ; Department of Ecology and Evolutionary Biology, University of Arizona, 1007 East Lowell Street, Tucson, AZ 85721, USA. ; Department of Marine Biology and Oceanography, Institute of Marine Sciences (ICM)-CSIC, Pg. Maritim de la Barceloneta, 37-49, Barcelona E08003, Spain. Department of Hydrobiology, Federal University of Sao Carlos (UFSCar), Rodovia Washington Luiz, 13565-905 Sao Carlos, Sao Paulo, Brazil. ; Ecole Normale Superieure, Institut de Biologie de l'ENS (IBENS), and Inserm U1024, and CNRS UMR 8197, F-75005 Paris, France. CNRS, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France. Sorbonne Universites, UPMC Universite Paris 06, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France. ; Structural and Computational Biology, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany. Directors' Research, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany. ; Ecole Normale Superieure, Institut de Biologie de l'ENS (IBENS), and Inserm U1024, and CNRS UMR 8197, F-75005 Paris, France. ; CNRS, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France. Sorbonne Universites, UPMC Universite Paris 06, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France. ; CNRS UMR 7232, BIOM, Avenue du Fontaule, 66650 Banyuls-sur-Mer, France. Sorbonne Universites Paris 06, OOB UPMC, Avenue du Fontaule, 66650 Banyuls-sur-Mer, France. ; Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy. ; CEA-Institut de Genomique, GENOSCOPE, 2 rue Gaston Cremieux, 91057 Evry, France. CNRS, UMR 8030, CP5706, Evry, France. Universite d'Evry, UMR 8030, CP5706, Evry, France. ; Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-001, Japan. ; PANGAEA, Data Publisher for Earth and Environmental Science, University of Bremen, Bremen, Germany. MARUM, Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany. ; Department of Geosciences, Laboratoire de Meteorologie Dynamique (LMD), Ecole Normale Superieure, 24 rue Lhomond, 75231 Paris Cedex 05, France. Laboratoire de Physique des Oceans UBO-IUEM, Place Copernic, 29820 Plouzane, France. ; Ecole Normale Superieure, Institut de Biologie de l'ENS (IBENS), and Inserm U1024, and CNRS UMR 8197, F-75005 Paris, France. Directors' Research, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany. sunagawa@embl.de karsenti@embl.de jeroen.raes@vib-kuleuven.be sacinas@icm.csic.es bork@embl.de. ; Department of Microbiology and Immunology, Rega Institute, KU Leuven, Herestraat 49, 3000 Leuven, Belgium. Center for the Biology of Disease, VIB, Herestraat 49, 3000 Leuven, Belgium. Department of Applied Biological Sciences, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium. sunagawa@embl.de karsenti@embl.de jeroen.raes@vib-kuleuven.be sacinas@icm.csic.es bork@embl.de. ; Department of Marine Biology and Oceanography, Institute of Marine Sciences (ICM)-CSIC, Pg. Maritim de la Barceloneta, 37-49, Barcelona E08003, Spain. sunagawa@embl.de karsenti@embl.de jeroen.raes@vib-kuleuven.be sacinas@icm.csic.es bork@embl.de. ; Structural and Computational Biology, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany. Max-Delbruck-Centre for Molecular Medicine, 13092 Berlin, Germany. sunagawa@embl.de karsenti@embl.de jeroen.raes@vib-kuleuven.be sacinas@icm.csic.es bork@embl.de.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25999513" target="_blank"〉PubMed〈/a〉
    Keywords: Databases, Genetic ; Ecosystem ; Gastrointestinal Tract/microbiology ; Genetic Variation ; Humans ; Metagenome ; Microbiota/*genetics ; Oceans and Seas ; Plankton/*classification/genetics/isolation & purification ; Seawater/*microbiology
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    RESEARCH FACILITIES. The dimming of NEON (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mervis, Jeffrey -- New York, N.Y. -- Science. 2015 Aug 7;349(6248):574. doi: 10.1126/science.349.6248.574.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26250664" target="_blank"〉PubMed〈/a〉
    Keywords: Budgets ; Ecology/*economics ; Ecosystem ; Foundations ; United States
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    The missing mudbug (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-09-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DeMarco, Emily -- New York, N.Y. -- Science. 2015 Aug 28;349(6251):915-7. doi: 10.1126/science.349.6251.915.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26315416" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Astacoidea/classification/genetics/physiology ; Coal Mining ; Ecosystem ; *Endangered Species/legislation & jurisprudence ; Environmental Pollution ; Genetic Speciation ; United States ; West Virginia
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Ecophysiology. Climate change tightens a metabolic constraint on marine habitats (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-06-06
    Description: Warming of the oceans and consequent loss of dissolved oxygen (O2) will alter marine ecosystems, but a mechanistic framework to predict the impact of multiple stressors on viable habitat is lacking. Here, we integrate physiological, climatic, and biogeographic data to calibrate and then map a key metabolic index-the ratio of O2 supply to resting metabolic O2 demand-across geographic ranges of several marine ectotherms. These species differ in thermal and hypoxic tolerances, but their contemporary distributions are all bounded at the equatorward edge by a minimum metabolic index of ~2 to 5, indicative of a critical energetic requirement for organismal activity. The combined effects of warming and O2 loss this century are projected to reduce the upper ocean's metabolic index by ~20% globally and by ~50% in northern high-latitude regions, forcing poleward and vertical contraction of metabolically viable habitats and species ranges.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Deutsch, Curtis -- Ferrel, Aaron -- Seibel, Brad -- Portner, Hans-Otto -- Huey, Raymond B -- New York, N.Y. -- Science. 2015 Jun 5;348(6239):1132-5. doi: 10.1126/science.aaa1605.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Oceanography, University of Washington, Seattle, WA 98195, USA. cdeutsch@uw.edu. ; Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA 90095, USA. ; Biological Sciences Department, University of Rhode Island, Kingston, RI 02881, USA. ; Alfred Wegener Institute, D-27570 Bremerhaven, Germany. ; Department of Biology, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26045435" target="_blank"〉PubMed〈/a〉
    Keywords: Anaerobiosis ; Animals ; Aquatic Organisms/*metabolism ; Brachyura/metabolism ; *Climate Change ; Ecosystem ; Gadus morhua/metabolism ; Oceans and Seas ; Oxygen/*metabolism ; Perciformes/metabolism ; Sea Bream/metabolism
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    Ecology. Inbred wolf population on Isle Royale collapses (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-04-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mlot, Christine -- New York, N.Y. -- Science. 2015 Apr 24;348(6233):383. doi: 10.1126/science.348.6233.383.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25908802" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Migration ; Animals ; Animals, Inbred Strains ; Ecosystem ; Female ; Food Chain ; Inbreeding ; Islands ; Michigan ; Population ; Wolves/genetics/*physiology
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    Open-ocean fish reveal an omnidirectional solution to camouflage in polarized environments (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-11-21
    Description: Despite appearing featureless to our eyes, the open ocean is a highly variable environment for polarization-sensitive viewers. Dynamic visual backgrounds coupled with predator encounters from all possible directions make this habitat one of the most challenging for camouflage. We tested open-ocean crypsis in nature by collecting more than 1500 videopolarimetry measurements from live fish from distinct habitats under a variety of viewing conditions. Open-ocean fish species exhibited camouflage that was superior to that of both nearshore fish and mirrorlike surfaces, with significantly higher crypsis at angles associated with predator detection and pursuit. Histological measurements revealed that specific arrangements of reflective guanine platelets in the fish's skin produce angle-dependent polarization modifications for polarocrypsis in the open ocean, suggesting a mechanism for natural selection to shape reflectance properties in this complex environment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brady, Parrish C -- Gilerson, Alexander A -- Kattawar, George W -- Sullivan, James M -- Twardowski, Michael S -- Dierssen, Heidi M -- Gao, Meng -- Travis, Kort -- Etheredge, Robert Ian -- Tonizzo, Alberto -- Ibrahim, Amir -- Carrizo, Carlos -- Gu, Yalong -- Russell, Brandon J -- Mislinski, Kathryn -- Zhao, Shulei -- Cummings, Molly E -- New York, N.Y. -- Science. 2015 Nov 20;350(6263):965-9. doi: 10.1126/science.aad5284. Epub 2015 Nov 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Biology, University of Texas, Austin, TX 78712, USA. ; Optical Remote Sensing Laboratory, the City College of New York-CUNY, New York, NY 10031, USA. ; Department of Physics and Astronomy and Institute for Quantum Science and Engineering, Texas A&M University, College Station, TX 77843-4242, USA. ; Harbor Branch Oceanographic Institute, Florida Atlantic University, Ft. Pierce, FL 34946, USA. ; Department of Marine Sciences, University of Connecticut Avery Point, 1080 Shennecossett Road, Groton, CT 06340-6048, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26586762" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Mimicry ; Blood Platelets/cytology ; Ecosystem ; Fishes/*physiology ; Oceans and Seas ; Predatory Behavior ; *Selection, Genetic ; Skin/anatomy & histology/blood supply ; Vision, Ocular
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    Hostile shores (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-10-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Larson, Christina -- New York, N.Y. -- Science. 2015 Oct 9;350(6257):150-2. doi: 10.1126/science.350.6257.150.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26450191" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Migration ; Animals ; *Birds ; China ; Ecosystem ; Oceans and Seas ; Population Dynamics ; Wetlands
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    Proteomics. Tissue-based map of the human proteome (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-01-24
    Description: Resolving the molecular details of proteome variation in the different tissues and organs of the human body will greatly increase our knowledge of human biology and disease. Here, we present a map of the human tissue proteome based on an integrated omics approach that involves quantitative transcriptomics at the tissue and organ level, combined with tissue microarray-based immunohistochemistry, to achieve spatial localization of proteins down to the single-cell level. Our tissue-based analysis detected more than 90% of the putative protein-coding genes. We used this approach to explore the human secretome, the membrane proteome, the druggable proteome, the cancer proteome, and the metabolic functions in 32 different tissues and organs. All the data are integrated in an interactive Web-based database that allows exploration of individual proteins, as well as navigation of global expression patterns, in all major tissues and organs in the human body.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Uhlen, Mathias -- Fagerberg, Linn -- Hallstrom, Bjorn M -- Lindskog, Cecilia -- Oksvold, Per -- Mardinoglu, Adil -- Sivertsson, Asa -- Kampf, Caroline -- Sjostedt, Evelina -- Asplund, Anna -- Olsson, IngMarie -- Edlund, Karolina -- Lundberg, Emma -- Navani, Sanjay -- Szigyarto, Cristina Al-Khalili -- Odeberg, Jacob -- Djureinovic, Dijana -- Takanen, Jenny Ottosson -- Hober, Sophia -- Alm, Tove -- Edqvist, Per-Henrik -- Berling, Holger -- Tegel, Hanna -- Mulder, Jan -- Rockberg, Johan -- Nilsson, Peter -- Schwenk, Jochen M -- Hamsten, Marica -- von Feilitzen, Kalle -- Forsberg, Mattias -- Persson, Lukas -- Johansson, Fredric -- Zwahlen, Martin -- von Heijne, Gunnar -- Nielsen, Jens -- Ponten, Fredrik -- New York, N.Y. -- Science. 2015 Jan 23;347(6220):1260419. doi: 10.1126/science.1260419.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Science for Life Laboratory, KTH-Royal Institute of Technology, SE-171 21 Stockholm, Sweden. Department of Proteomics, KTH-Royal Institute of Technology, SE-106 91 Stockholm, Sweden. Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK-2970 Horsholm, Denmark. mathias.uhlen@scilifelab.se. ; Science for Life Laboratory, KTH-Royal Institute of Technology, SE-171 21 Stockholm, Sweden. ; Science for Life Laboratory, KTH-Royal Institute of Technology, SE-171 21 Stockholm, Sweden. Department of Proteomics, KTH-Royal Institute of Technology, SE-106 91 Stockholm, Sweden. ; Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, SE-751 85 Uppsala, Sweden. ; Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden. ; Science for Life Laboratory, KTH-Royal Institute of Technology, SE-171 21 Stockholm, Sweden. Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, SE-751 85 Uppsala, Sweden. ; Leibniz Research Centre for Working Environment and Human Factors (IfADo) at Dortmund TU, D-44139 Dortmund, Germany. ; Lab Surgpath, Mumbai, India. ; Department of Proteomics, KTH-Royal Institute of Technology, SE-106 91 Stockholm, Sweden. ; Science for Life Laboratory, Department of Neuroscience, Karolinska Institute, SE-171 77 Stockholm, Sweden. ; Center for Biomembrane Research, Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden. ; Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK-2970 Horsholm, Denmark. Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25613900" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Cell Line ; *Databases, Protein ; Female ; Genes ; Genetic Code ; Humans ; Internet ; Male ; Membrane Proteins/genetics/metabolism ; Mitochondrial Proteins/genetics/metabolism ; Neoplasms/genetics/metabolism ; Protein Array Analysis ; Protein Isoforms/genetics/metabolism ; Proteome/genetics/*metabolism ; Tissue Distribution ; Transcription, Genetic
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    ACTIN-DIRECTED TOXIN. ACD toxin-produced actin oligomers poison formin-controlled actin polymerization (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-08-01
    Description: The actin cross-linking domain (ACD) is an actin-specific toxin produced by several pathogens, including life-threatening spp. of Vibrio cholerae, Vibrio vulnificus, and Aeromonas hydrophila. Actin cross-linking by ACD is thought to lead to slow cytoskeleton failure owing to a gradual sequestration of actin in the form of nonfunctional oligomers. Here, we found that ACD converted cytoplasmic actin into highly toxic oligomers that potently "poisoned" the ability of major actin assembly proteins, formins, to sustain actin polymerization. Thus, ACD can target the most abundant cellular protein by using actin oligomers as secondary toxins to efficiently subvert cellular functions of actin while functioning at very low doses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4648357/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4648357/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heisler, David B -- Kudryashova, Elena -- Grinevich, Dmitry O -- Suarez, Cristian -- Winkelman, Jonathan D -- Birukov, Konstantin G -- Kotha, Sainath R -- Parinandi, Narasimham L -- Vavylonis, Dimitrios -- Kovar, David R -- Kudryashov, Dmitri S -- R01 GM079265/GM/NIGMS NIH HHS/ -- R01 GM098430/GM/NIGMS NIH HHS/ -- R01 GM114666/GM/NIGMS NIH HHS/ -- R01 HL076259/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2015 Jul 31;349(6247):535-9. doi: 10.1126/science.aab4090.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA. The Ohio State Biochemistry Program, The Ohio State University, Columbus, OH 43210, USA. ; Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA. kudryashov.1@osu.edu kudryashova.1@osu.edu. ; Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA. ; Department of Molecular Genetics and Cell Biology, The University of Chicago, Chicago, IL 60637, USA. ; Section of Pulmonary and Critical Care and Lung Injury Center, Department of Medicine, The University of Chicago, Chicago, IL 60637, USA. ; Lipid Signaling and Lipidomics Laboratory, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Dorothy M. Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, OH 43210, USA. ; Department of Physics, Lehigh University, Bethlehem, PA 18015, USA. ; Department of Molecular Genetics and Cell Biology, The University of Chicago, Chicago, IL 60637, USA. Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL 60637, USA. ; Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA. The Ohio State Biochemistry Program, The Ohio State University, Columbus, OH 43210, USA. kudryashov.1@osu.edu kudryashova.1@osu.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26228148" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/*metabolism ; Animals ; Antigens, Bacterial/*chemistry/genetics/*toxicity ; Bacterial Toxins/*chemistry/genetics/*toxicity ; Cell Line ; Fetal Proteins/*antagonists & inhibitors ; Intestinal Mucosa/drug effects/metabolism ; Microfilament Proteins/*antagonists & inhibitors ; Nuclear Proteins/*antagonists & inhibitors ; Polymerization/drug effects ; Protein Structure, Tertiary ; Rats
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    ADVANCED IMAGING. Extended-resolution structured illumination imaging of endocytic and cytoskeletal dynamics (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-09-01
    Description: Super-resolution fluorescence microscopy is distinct among nanoscale imaging tools in its ability to image protein dynamics in living cells. Structured illumination microscopy (SIM) stands out in this regard because of its high speed and low illumination intensities, but typically offers only a twofold resolution gain. We extended the resolution of live-cell SIM through two approaches: ultrahigh numerical aperture SIM at 84-nanometer lateral resolution for more than 100 multicolor frames, and nonlinear SIM with patterned activation at 45- to 62-nanometer resolution for approximately 20 to 40 frames. We applied these approaches to image dynamics near the plasma membrane of spatially resolved assemblies of clathrin and caveolin, Rab5a in early endosomes, and alpha-actinin, often in relationship to cortical actin. In addition, we examined mitochondria, actin, and the Golgi apparatus dynamics in three dimensions.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4659358/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4659358/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Dong -- Shao, Lin -- Chen, Bi-Chang -- Zhang, Xi -- Zhang, Mingshu -- Moses, Brian -- Milkie, Daniel E -- Beach, Jordan R -- Hammer, John A 3rd -- Pasham, Mithun -- Kirchhausen, Tomas -- Baird, Michelle A -- Davidson, Michael W -- Xu, Pingyong -- Betzig, Eric -- GM-075252/GM/NIGMS NIH HHS/ -- R01 GM075252/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Aug 28;349(6251):aab3500. doi: 10.1126/science.aab3500.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA. ; Key Laboratory of RNA Biology and Beijing Key Laboratory of Noncoding RNA, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China. College of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China. ; Key Laboratory of RNA Biology and Beijing Key Laboratory of Noncoding RNA, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China. ; Coleman Technologies, 5131 West Chester Pike, Newtown Square, PA 19073, USA. ; Cell Biology and Physiology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA. ; Department of Cell Biology and Pediatrics, Harvard Medical School and Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA. ; Cell Biology and Physiology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA. National High Magnetic Field Laboratory and Department of Biological Science, Florida State University, Tallahassee, FL 32310, USA. ; National High Magnetic Field Laboratory and Department of Biological Science, Florida State University, Tallahassee, FL 32310, USA. ; Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA. betzige@janelia.hhmi.org.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26315442" target="_blank"〉PubMed〈/a〉
    Keywords: Actinin/analysis ; Actins/analysis ; Animals ; Cell Line ; Clathrin/analysis ; Clathrin-Coated Vesicles/chemistry/ultrastructure ; Coated Pits, Cell-Membrane/chemistry/ultrastructure ; Cytoskeleton/chemistry/metabolism/*ultrastructure ; *Endocytosis ; Endosomes/chemistry/ultrastructure ; Golgi Apparatus/ultrastructure ; Image Processing, Computer-Assisted ; Imaging, Three-Dimensional/instrumentation/*methods ; Microscopy, Fluorescence/instrumentation/*methods ; Mitochondria/chemistry/ultrastructure ; Organelles/chemistry/metabolism/*ultrastructure ; rab5 GTP-Binding Proteins/analysis
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    The next century of ecology (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Inouye, David W -- New York, N.Y. -- Science. 2015 Aug 7;349(6248):565. doi: 10.1126/science.aab1685.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉David W. Inouye is president of the Ecological Society of America; professor emeritus at the University of Maryland, College Park, MD; and a principal investigator at the Rocky Mountain Biological Laboratory, Crested Butte, CO.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26250658" target="_blank"〉PubMed〈/a〉
    Keywords: Decision Making ; Ecology/*trends ; Ecosystem ; Knowledge ; United States
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    Phosphorylation of innate immune adaptor proteins MAVS, STING, and TRIF induces IRF3 activation (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-02-01
    Description: During virus infection, the adaptor proteins MAVS and STING transduce signals from the cytosolic nucleic acid sensors RIG-I and cGAS, respectively, to induce type I interferons (IFNs) and other antiviral molecules. Here we show that MAVS and STING harbor two conserved serine and threonine clusters that are phosphorylated by the kinases IKK and/or TBK1 in response to stimulation. Phosphorylated MAVS and STING then bind to a positively charged surface of interferon regulatory factor 3 (IRF3) and thereby recruit IRF3 for its phosphorylation and activation by TBK1. We further show that TRIF, an adaptor protein in Toll-like receptor signaling, activates IRF3 through a similar phosphorylation-dependent mechanism. These results reveal that phosphorylation of innate adaptor proteins is an essential and conserved mechanism that selectively recruits IRF3 to activate the type I IFN pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Siqi -- Cai, Xin -- Wu, Jiaxi -- Cong, Qian -- Chen, Xiang -- Li, Tuo -- Du, Fenghe -- Ren, Junyao -- Wu, You-Tong -- Grishin, Nick V -- Chen, Zhijian J -- AI-93967/AI/NIAID NIH HHS/ -- GM-094575/GM/NIGMS NIH HHS/ -- GM-63692/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Mar 13;347(6227):aaa2630. doi: 10.1126/science.aaa2630. Epub 2015 Jan 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. ; Departments of Biophysics and Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. ; Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. Howard Hughes Medical Institute (HHMI), University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. ; Departments of Biophysics and Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. Howard Hughes Medical Institute (HHMI), University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. ; Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. Howard Hughes Medical Institute (HHMI), University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. zhijian.chen@utsouthwestern.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25636800" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/chemistry/*metabolism ; Adaptor Proteins, Vesicular Transport/chemistry/*metabolism ; Amino Acid Sequence ; Animals ; Cell Line ; Humans ; I-kappa B Kinase/metabolism ; Interferon Regulatory Factor-3/chemistry/*metabolism ; Interferon-alpha/biosynthesis ; Interferon-beta/biosynthesis ; Membrane Proteins/chemistry/*metabolism ; Mice ; Molecular Sequence Data ; Phosphorylation ; Protein Binding ; Protein Multimerization ; Protein-Serine-Threonine Kinases/metabolism ; Recombinant Proteins/metabolism ; Sendai virus/physiology ; Serine/metabolism ; Signal Transduction ; Ubiquitination ; Vesiculovirus/physiology
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    Ocean acidification and the Permo-Triassic mass extinction (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-04-11
    Description: Ocean acidification triggered by Siberian Trap volcanism was a possible kill mechanism for the Permo-Triassic Boundary mass extinction, but direct evidence for an acidification event is lacking. We present a high-resolution seawater pH record across this interval, using boron isotope data combined with a quantitative modeling approach. In the latest Permian, increased ocean alkalinity primed the Earth system with a low level of atmospheric CO2 and a high ocean buffering capacity. The first phase of extinction was coincident with a slow injection of carbon into the atmosphere, and ocean pH remained stable. During the second extinction pulse, however, a rapid and large injection of carbon caused an abrupt acidification event that drove the preferential loss of heavily calcified marine biota.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clarkson, M O -- Kasemann, S A -- Wood, R A -- Lenton, T M -- Daines, S J -- Richoz, S -- Ohnemueller, F -- Meixner, A -- Poulton, S W -- Tipper, E T -- New York, N.Y. -- Science. 2015 Apr 10;348(6231):229-32. doi: 10.1126/science.aaa0193.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Geosciences, University of Edinburgh, West Mains Road, Edinburgh EH9 3FE, UK. matthew.clarkson@otago.ac.nz. ; Faculty of Geosciences and MARUM-Center for Marine Environmental Sciences, University of Bremen, 28334 Bremen, Germany. ; School of Geosciences, University of Edinburgh, West Mains Road, Edinburgh EH9 3FE, UK. ; College of Life and Environmental Sciences, University of Exeter, Laver Building, North Parks Road, Exeter EX4 4QE, UK. ; Institute of Earth Sciences, NAWI Graz, University of Graz, Heinrichstrasse 26, 8010 Graz, Austria. ; School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK. ; Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25859043" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Aquatic Organisms ; Atmosphere ; Boron ; *Carbon ; Carbon Cycle ; Carbon Isotopes ; Ecosystem ; *Extinction, Biological ; Hydrogen-Ion Concentration ; Isotopes ; Oceans and Seas ; Seawater/*chemistry ; Time
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    MICROBIOME. A unified initiative to harness Earth's microbiomes (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-10-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alivisatos, A P -- Blaser, M J -- Brodie, E L -- Chun, M -- Dangl, J L -- Donohue, T J -- Dorrestein, P C -- Gilbert, J A -- Green, J L -- Jansson, J K -- Knight, R -- Maxon, M E -- McFall-Ngai, M J -- Miller, J F -- Pollard, K S -- Ruby, E G -- Taha, S A -- Unified Microbiome Initiative Consortium -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Oct 30;350(6260):507-8. doi: 10.1126/science.aac8480. Epub 2015 Oct 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉See the supplementary materials for authors' affiliations.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26511287" target="_blank"〉PubMed〈/a〉
    Keywords: Earth (Planet) ; Ecosystem ; Interdisciplinary Studies ; *Microbiota ; Oceans and Seas ; Seawater/microbiology ; *Soil Microbiology ; *Water Microbiology
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    Transcription factor trapping by RNA in gene regulatory elements (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-10-31
    Description: Transcription factors (TFs) bind specific sequences in promoter-proximal and -distal DNA elements to regulate gene transcription. RNA is transcribed from both of these DNA elements, and some DNA binding TFs bind RNA. Hence, RNA transcribed from regulatory elements may contribute to stable TF occupancy at these sites. We show that the ubiquitously expressed TF Yin-Yang 1 (YY1) binds to both gene regulatory elements and their associated RNA species across the entire genome. Reduced transcription of regulatory elements diminishes YY1 occupancy, whereas artificial tethering of RNA enhances YY1 occupancy at these elements. We propose that RNA makes a modest but important contribution to the maintenance of certain TFs at gene regulatory elements and suggest that transcription of regulatory elements produces a positive-feedback loop that contributes to the stability of gene expression programs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4720525/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4720525/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sigova, Alla A -- Abraham, Brian J -- Ji, Xiong -- Molinie, Benoit -- Hannett, Nancy M -- Guo, Yang Eric -- Jangi, Mohini -- Giallourakis, Cosmas C -- Sharp, Phillip A -- Young, Richard A -- HG002668/HG/NHGRI NIH HHS/ -- R01 HG002668/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2015 Nov 20;350(6263):978-81. doi: 10.1126/science.aad3346. Epub 2015 Oct 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA. ; Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA. ; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA. David H. Koch Institute for Integrative Cancer Research, Cambridge, MA 02140, USA. ; Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA. Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA. young@wi.mit.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26516199" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; Cell Line ; Consensus Sequence ; DNA/metabolism ; Embryonic Stem Cells/metabolism ; *Enhancer Elements, Genetic ; *Gene Expression Regulation ; Mice ; *Promoter Regions, Genetic ; RNA, Messenger/*metabolism ; *Transcription, Genetic ; YY1 Transcription Factor/*metabolism
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    Stem cells. m6A mRNA methylation facilitates resolution of naive pluripotency toward differentiation (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-01-09
    Description: Naive and primed pluripotent states retain distinct molecular properties, yet limited knowledge exists on how their state transitions are regulated. Here, we identify Mettl3, an N(6)-methyladenosine (m(6)A) transferase, as a regulator for terminating murine naive pluripotency. Mettl3 knockout preimplantation epiblasts and naive embryonic stem cells are depleted for m(6)A in mRNAs, yet are viable. However, they fail to adequately terminate their naive state and, subsequently, undergo aberrant and restricted lineage priming at the postimplantation stage, which leads to early embryonic lethality. m(6)A predominantly and directly reduces mRNA stability, including that of key naive pluripotency-promoting transcripts. This study highlights a critical role for an mRNA epigenetic modification in vivo and identifies regulatory modules that functionally influence naive and primed pluripotency in an opposing manner.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Geula, Shay -- Moshitch-Moshkovitz, Sharon -- Dominissini, Dan -- Mansour, Abed AlFatah -- Kol, Nitzan -- Salmon-Divon, Mali -- Hershkovitz, Vera -- Peer, Eyal -- Mor, Nofar -- Manor, Yair S -- Ben-Haim, Moshe Shay -- Eyal, Eran -- Yunger, Sharon -- Pinto, Yishay -- Jaitin, Diego Adhemar -- Viukov, Sergey -- Rais, Yoach -- Krupalnik, Vladislav -- Chomsky, Elad -- Zerbib, Mirie -- Maza, Itay -- Rechavi, Yoav -- Massarwa, Rada -- Hanna, Suhair -- Amit, Ido -- Levanon, Erez Y -- Amariglio, Ninette -- Stern-Ginossar, Noam -- Novershtern, Noa -- Rechavi, Gideon -- Hanna, Jacob H -- New York, N.Y. -- Science. 2015 Feb 27;347(6225):1002-6. doi: 10.1126/science.1261417. Epub 2015 Jan 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel. ; Cancer Research Center, Chaim Sheba Medical Center, Tel Hashomer, Israel, and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel. ; Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA. ; Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel. ; The Department of Immunology, Weizmann Institute of Science, Rehovot, Israel. ; The Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel. The Department of Pediatrics and the Pediatric Immunology Unit, Rambam Medical Center, and the B. Rappaport Faculty of Medicine, Technion, Haifa, Israel. ; Cancer Research Center, Chaim Sheba Medical Center, Tel Hashomer, Israel, and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel. Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel. ; The Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel. jacob.hanna@weizmann.ac.il noa.novershtern@weizmann.ac.il gidi.rechavi@sheba.health.gov.il. ; Cancer Research Center, Chaim Sheba Medical Center, Tel Hashomer, Israel, and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel. jacob.hanna@weizmann.ac.il noa.novershtern@weizmann.ac.il gidi.rechavi@sheba.health.gov.il.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25569111" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine/*analogs & derivatives/metabolism ; Animals ; Blastocyst/enzymology ; Cell Differentiation/genetics/*physiology ; Cell Line ; Embryo Loss/genetics ; Epigenesis, Genetic ; Female ; Gene Knockout Techniques ; Male ; Methylation ; Methyltransferases/genetics/*physiology ; Mice ; Mice, Knockout ; Pluripotent Stem Cells/*cytology/enzymology ; RNA, Messenger/*metabolism
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    Structural biology. Structural basis for Notch1 engagement of Delta-like 4 (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-02-24
    Description: Notch receptors guide mammalian cell fate decisions by engaging the proteins Jagged and Delta-like (DLL). The 2.3 angstrom resolution crystal structure of the interacting regions of the Notch1-DLL4 complex reveals a two-site, antiparallel binding orientation assisted by Notch1 O-linked glycosylation. Notch1 epidermal growth factor-like repeats 11 and 12 interact with the DLL4 Delta/Serrate/Lag-2 (DSL) domain and module at the N-terminus of Notch ligands (MNNL) domains, respectively. Threonine and serine residues on Notch1 are functionalized with O-fucose and O-glucose, which act as surrogate amino acids by making specific, and essential, contacts to residues on DLL4. The elucidation of a direct chemical role for O-glycans in Notch1 ligand engagement demonstrates how, by relying on posttranslational modifications of their ligand binding sites, Notch proteins have linked their functional capacity to developmentally regulated biosynthetic pathways.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4445638/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4445638/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luca, Vincent C -- Jude, Kevin M -- Pierce, Nathan W -- Nachury, Maxence V -- Fischer, Suzanne -- Garcia, K Christopher -- 1R01-GM097015/GM/NIGMS NIH HHS/ -- R01 GM097015/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Feb 20;347(6224):847-53. doi: 10.1126/science.1261093.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305, USA. Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA 94305, USA. Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA. ; Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA 94305, USA. ; Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305, USA. Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA 94305, USA. Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA. kcgarcia@stanford.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25700513" target="_blank"〉PubMed〈/a〉
    Keywords: Alagille Syndrome/genetics ; Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Cell Line ; Conserved Sequence ; Crystallography, X-Ray ; Fucose/chemistry ; Glucose/chemistry ; Glycosylation ; Intracellular Signaling Peptides and Proteins/*chemistry/genetics ; Ligands ; Membrane Proteins/*chemistry/genetics/ultrastructure ; Molecular Sequence Data ; Molecular Targeted Therapy ; Polysaccharides/chemistry ; Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/drug therapy/genetics ; Protein Binding ; Protein Structure, Tertiary ; Rats ; Receptor, Notch1/*chemistry/genetics/ultrastructure ; Serine/chemistry/genetics ; Threonine/chemistry/genetics
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    ENDOCYTOSIS. Endocytic sites mature by continuous bending and remodeling of the clathrin coat (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-06-20
    Description: During clathrin-mediated endocytosis (CME), plasma membrane regions are internalized to retrieve extracellular molecules and cell surface components. Whether endocytosis occurs by direct clathrin assembly into curved lattices on the budding vesicle or by initial recruitment to flat membranes and subsequent reshaping has been controversial. To distinguish between these models, we combined fluorescence microscopy and electron tomography to locate endocytic sites and to determine their coat and membrane shapes during invagination. The curvature of the clathrin coat increased, whereas the coated surface area remained nearly constant. Furthermore, clathrin rapidly exchanged at all stages of CME. Thus, coated vesicle budding appears to involve bending of a dynamic preassembled clathrin coat.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Avinoam, Ori -- Schorb, Martin -- Beese, Carsten J -- Briggs, John A G -- Kaksonen, Marko -- New York, N.Y. -- Science. 2015 Jun 19;348(6241):1369-72. doi: 10.1126/science.aaa9555.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Biology and Biophysics Unit, The European Molecular Biology Laboratory, Heidelberg 69117, Germany. Structural and Computational Biology Unit, The European Molecular Biology Laboratory, Heidelberg 69117, Germany. ; Structural and Computational Biology Unit, The European Molecular Biology Laboratory, Heidelberg 69117, Germany. Electron Microscopy Core Facility, The European Molecular Biology Laboratory, Heidelberg 69117, Germany. ; Cell Biology and Biophysics Unit, The European Molecular Biology Laboratory, Heidelberg 69117, Germany. ; Structural and Computational Biology Unit, The European Molecular Biology Laboratory, Heidelberg 69117, Germany. Cell Biology and Biophysics Unit, The European Molecular Biology Laboratory, Heidelberg 69117, Germany. marko.kaksonen@unige.ch john.briggs@embl.de. ; Cell Biology and Biophysics Unit, The European Molecular Biology Laboratory, Heidelberg 69117, Germany. Structural and Computational Biology Unit, The European Molecular Biology Laboratory, Heidelberg 69117, Germany. marko.kaksonen@unige.ch john.briggs@embl.de.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26089517" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Clathrin/*chemistry ; Coated Pits, Cell-Membrane/*chemistry ; Electron Microscope Tomography ; *Endocytosis ; Fluorescence Recovery After Photobleaching ; Humans ; Microscopy, Fluorescence
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    Stem cells. Asymmetric apportioning of aged mitochondria between daughter cells is required for stemness (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-04-04
    Description: By dividing asymmetrically, stem cells can generate two daughter cells with distinct fates. However, evidence is limited in mammalian systems for the selective apportioning of subcellular contents between daughters. We followed the fates of old and young organelles during the division of human mammary stemlike cells and found that such cells apportion aged mitochondria asymmetrically between daughter cells. Daughter cells that received fewer old mitochondria maintained stem cell traits. Inhibition of mitochondrial fission disrupted both the age-dependent subcellular localization and segregation of mitochondria and caused loss of stem cell properties in the progeny cells. Hence, mechanisms exist for mammalian stemlike cells to asymmetrically sort aged and young mitochondria, and these are important for maintaining stemness properties.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4405120/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4405120/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Katajisto, Pekka -- Dohla, Julia -- Chaffer, Christine L -- Pentinmikko, Nalle -- Marjanovic, Nemanja -- Iqbal, Sharif -- Zoncu, Roberto -- Chen, Walter -- Weinberg, Robert A -- Sabatini, David M -- P30 CA014051/CA/NCI NIH HHS/ -- R01 CA103866/CA/NCI NIH HHS/ -- R01 CA129105/CA/NCI NIH HHS/ -- R37 AI047389/AI/NIAID NIH HHS/ -- T32 GM007287/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Apr 17;348(6232):340-3. doi: 10.1126/science.1260384. Epub 2015 Apr 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Boston, MA 02142, USA. Department of Biology, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA. Howard Hughes Medical Institute, MIT, Cambridge, MA 02139, USA. Institute of Biotechnology, University of Helsinki, P.O. Box 00014, Helsinki, Finland. pekka.katajisto@helsinki.fi sabatini@wi.mit.edu. ; Institute of Biotechnology, University of Helsinki, P.O. Box 00014, Helsinki, Finland. ; Whitehead Institute for Biomedical Research, Boston, MA 02142, USA. ; Whitehead Institute for Biomedical Research, Boston, MA 02142, USA. Department of Biology, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA. ; Whitehead Institute for Biomedical Research, Boston, MA 02142, USA. Department of Biology, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA. Howard Hughes Medical Institute, MIT, Cambridge, MA 02139, USA. ; Whitehead Institute for Biomedical Research, Boston, MA 02142, USA. Department of Biology, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA. Howard Hughes Medical Institute, MIT, Cambridge, MA 02139, USA. Broad Institute, Cambridge, MA 02142, USA. The David H. Koch Institute for Integrative Cancer Research at MIT, Cambridge, MA 02139, USA. pekka.katajisto@helsinki.fi sabatini@wi.mit.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25837514" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Aging/genetics/*physiology ; Cell Division/genetics/*physiology ; Cell Line ; Humans ; Mitochondria/*physiology/ultrastructure ; Stem Cells/*physiology/*ultrastructure
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Bee declines driven by combined stress from parasites, pesticides, and lack of flowers (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-02-28
    Description: Bees are subject to numerous pressures in the modern world. The abundance and diversity of flowers has declined; bees are chronically exposed to cocktails of agrochemicals, and they are simultaneously exposed to novel parasites accidentally spread by humans. Climate change is likely to exacerbate these problems in the future. Stressors do not act in isolation; for example, pesticide exposure can impair both detoxification mechanisms and immune responses, rendering bees more susceptible to parasites. It seems certain that chronic exposure to multiple interacting stressors is driving honey bee colony losses and declines of wild pollinators, but such interactions are not addressed by current regulatory procedures, and studying these interactions experimentally poses a major challenge. In the meantime, taking steps to reduce stress on bees would seem prudent; incorporating flower-rich habitat into farmland, reducing pesticide use through adopting more sustainable farming methods, and enforcing effective quarantine measures on bee movements are all practical measures that should be adopted. Effective monitoring of wild pollinator populations is urgently needed to inform management strategies into the future.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goulson, Dave -- Nicholls, Elizabeth -- Botias, Cristina -- Rotheray, Ellen L -- New York, N.Y. -- Science. 2015 Mar 27;347(6229):1255957. doi: 10.1126/science.1255957. Epub 2015 Feb 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QG, UK. d.goulson@sussex.ac.uk. ; School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QG, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25721506" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bees/drug effects/parasitology/physiology ; Climate Change ; Conservation of Natural Resources/*methods ; Ecosystem ; Environmental Exposure ; Environmental Monitoring/*methods ; *Extinction, Biological ; Flowers ; Pesticides/toxicity ; *Pollination ; Population ; *Stress, Physiological
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    Vertebrate evolution. Evolutionary innovation and ecology in marine tetrapods from the Triassic to the Anthropocene (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-04-18
    Description: Many top consumers in today's oceans are marine tetrapods, a collection of lineages independently derived from terrestrial ancestors. The fossil record illuminates their transitions from land to sea, yet these initial invasions account for a small proportion of their evolutionary history. We review the history of marine invasions that drove major changes in anatomy, physiology, and ecology over more than 250 million years. Many innovations evolved convergently in multiple clades, whereas others are unique to individual lineages. The evolutionary arcs of these ecologically important clades are framed against the backdrop of mass extinctions and regime shifts in ocean ecosystems. Past and present human disruptions to marine tetrapods, with cascading impacts on marine ecosystems, underscore the need to link macroecology with evolutionary change.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kelley, Neil P -- Pyenson, Nicholas D -- New York, N.Y. -- Science. 2015 Apr 17;348(6232):aaa3716. doi: 10.1126/science.aaa3716.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA. Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37240, USA. kelleynp@si.edu. ; Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA. Departments of Mammalogy and Paleontology, Burke Museum of Natural History and Culture, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25883362" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aquatic Organisms/*classification ; *Biological Evolution ; Ecosystem ; Fossils ; *Introduced Species ; Oceans and Seas ; Vertebrates/*classification
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Genome-wide inactivation of porcine endogenous retroviruses (PERVs) (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-10-13
    Description: The shortage of organs for transplantation is a major barrier to the treatment of organ failure. Although porcine organs are considered promising, their use has been checked by concerns about the transmission of porcine endogenous retroviruses (PERVs) to humans. Here we describe the eradication of all PERVs in a porcine kidney epithelial cell line (PK15). We first determined the PK15 PERV copy number to be 62. Using CRISPR-Cas9, we disrupted all copies of the PERV pol gene and demonstrated a 〉1000-fold reduction in PERV transmission to human cells, using our engineered cells. Our study shows that CRISPR-Cas9 multiplexability can be as high as 62 and demonstrates the possibility that PERVs can be inactivated for clinical application of porcine-to-human xenotransplantation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, Luhan -- Guell, Marc -- Niu, Dong -- George, Haydy -- Lesha, Emal -- Grishin, Dennis -- Aach, John -- Shrock, Ellen -- Xu, Weihong -- Poci, Jurgen -- Cortazio, Rebeca -- Wilkinson, Robert A -- Fishman, Jay A -- Church, George -- P50 HG005550/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2015 Nov 27;350(6264):1101-4. doi: 10.1126/science.aad1191. Epub 2015 Oct 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Boston, MA, USA. Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, USA. eGenesis Biosciences, Boston, MA 02115, USA. gchurch@genetics.med.harvard.edu luhan.yang@egenesisbio.com. ; Department of Genetics, Harvard Medical School, Boston, MA, USA. Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, USA. eGenesis Biosciences, Boston, MA 02115, USA. ; Department of Genetics, Harvard Medical School, Boston, MA, USA. College of Animal Sciences, Zhejiang University, Hangzhou 310058, China. ; Department of Genetics, Harvard Medical School, Boston, MA, USA. ; Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. ; Transplant Infectious Disease and Compromised Host Program, Massachusetts General Hospital, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26456528" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; CRISPR-Cas Systems ; Cell Line ; Endogenous Retroviruses/*genetics ; Epithelial Cells/virology ; Gene Dosage ; Gene Targeting/*methods ; Genes, pol ; HEK293 Cells ; Humans ; Kidney/virology ; Molecular Sequence Data ; Retroviridae Infections/*prevention & control/transmission/virology ; Swine/*virology ; Transplantation, Heterologous/*methods ; *Virus Inactivation
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    Genomic variation. Impact of regulatory variation from RNA to protein (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-02-07
    Description: The phenotypic consequences of expression quantitative trait loci (eQTLs) are presumably due to their effects on protein expression levels. Yet the impact of genetic variation, including eQTLs, on protein levels remains poorly understood. To address this, we mapped genetic variants that are associated with eQTLs, ribosome occupancy (rQTLs), or protein abundance (pQTLs). We found that most QTLs are associated with transcript expression levels, with consequent effects on ribosome and protein levels. However, eQTLs tend to have significantly reduced effect sizes on protein levels, which suggests that their potential impact on downstream phenotypes is often attenuated or buffered. Additionally, we identified a class of cis QTLs that affect protein abundance with little or no effect on messenger RNA or ribosome levels, which suggests that they may arise from differences in posttranslational regulation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4507520/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4507520/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Battle, Alexis -- Khan, Zia -- Wang, Sidney H -- Mitrano, Amy -- Ford, Michael J -- Pritchard, Jonathan K -- Gilad, Yoav -- F32 HG006972/HG/NHGRI NIH HHS/ -- F32HG006972/HG/NHGRI NIH HHS/ -- GM077959/GM/NIGMS NIH HHS/ -- HG007036/HG/NHGRI NIH HHS/ -- MH084703/MH/NIMH NIH HHS/ -- R01 GM077959/GM/NIGMS NIH HHS/ -- R01 MH084703/MH/NIMH NIH HHS/ -- U01 HG007036/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Feb 6;347(6222):664-7. doi: 10.1126/science.1260793. Epub 2014 Dec 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Stanford University, Stanford, CA 94305, USA. Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305, USA. ; Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA. ; MS Bioworks, LLC, 3950 Varsity Drive, Ann Arbor, MI 48108, USA. ; Department of Genetics, Stanford University, Stanford, CA 94305, USA. Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305, USA. Department of Biology, Stanford University, Stanford, CA 94305, USA. pritch@stanford.edu gilad@uchicago.edu. ; Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA. pritch@stanford.edu gilad@uchicago.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25657249" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Flanking Region ; 5' Flanking Region ; Cell Line ; Exons ; *Gene Expression Regulation ; *Genetic Variation ; Humans ; Phenotype ; Protein Biosynthesis/*genetics ; *Quantitative Trait Loci ; RNA, Messenger/*genetics ; Ribosomes/metabolism ; *Transcription, Genetic
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    Don't mess with the bears (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kintisch, Eli -- New York, N.Y. -- Science. 2015 Aug 7;349(6248):581. doi: 10.1126/science.349.6248.581.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26250667" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arctic Regions ; *Carnivory ; Ecosystem ; Humans ; *Ursidae
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    The beyond-two-degree inferno (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-07-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McNutt, Marcia -- New York, N.Y. -- Science. 2015 Jul 3;349(6243):7. doi: 10.1126/science.aac8698. Epub 2015 Jul 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Marcia McNutt Editor-in-Chief Science Journals.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26138952" target="_blank"〉PubMed〈/a〉
    Keywords: Carbon Dioxide/*adverse effects/standards ; *Climate Change ; Earth (Planet) ; Ecosystem ; Food Supply ; Health ; Humans
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    CONSERVATION POLICY. Questionable policy for large carnivore hunting (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-12-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Creel, Scott -- Becker, Matthew -- Christianson, David -- Droge, Egil -- Hammerschlag, Neil -- Hayward, Matt W -- Karanth, Ullas -- Loveridge, Andrew -- Macdonald, David W -- Matandiko, Wigganson -- M'soka, Jassiel -- Murray, Dennis -- Rosenblatt, Elias -- Schuette, Paul -- New York, N.Y. -- Science. 2015 Dec 18;350(6267):1473-5. doi: 10.1126/science.aac4768.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Montana State University, Bozeman, MT 59717, USA. Zambian Carnivore Programme, Mfuwe, Zambia. screel@montana.edu. ; Zambian Carnivore Programme, Mfuwe, Zambia. ; University of Arizona, Tucson, AZ 85721, USA. ; Montana State University, Bozeman, MT 59717, USA. ; University of Miami, Miami, FL 33149, USA. ; Bangor University, Bangor, LL57 2UW, UK. ; Wildlife Conservation Society, Bangalore, Karnataka 560 070, India. ; WildCRU, Oxford University, Recanati-Kaplan Centre, Oxfordshire OX13 5QL, UK. ; Montana State University, Bozeman, MT 59717, USA. Zambia Wildlife Authority, Chilanga, Zambia. ; Trent University, Peterborough, Ontario K9J 7B8, Canada. ; State University of New York College of Environmental Science and Forestry, Syracuse, NY 13210, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26680181" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Carnivory ; Ecosystem ; *Endangered Species ; *Human Activities ; Policy ; Population Dynamics ; *Wolves
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    Policies undermine Brazil's GHG goals (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-10-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rajao, Raoni -- Soares-Filho, Britaldo -- New York, N.Y. -- Science. 2015 Oct 30;350(6260):519. doi: 10.1126/science.350.6260.519-a. Epub 2015 Oct 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil. rajao@ufmg.br britaldo@csr.ufmg.br.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26516275" target="_blank"〉PubMed〈/a〉
    Keywords: Brazil ; *Conservation of Natural Resources ; Ecosystem ; *Environmental Policy ; Greenhouse Effect/*prevention & control ; Rivers
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    Microbial community assembly and metabolic function during mammalian corpse decomposition (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-12-15
    Description: Vertebrate corpse decomposition provides an important stage in nutrient cycling in most terrestrial habitats, yet microbially mediated processes are poorly understood. Here we combine deep microbial community characterization, community-level metabolic reconstruction, and soil biogeochemical assessment to understand the principles governing microbial community assembly during decomposition of mouse and human corpses on different soil substrates. We find a suite of bacterial and fungal groups that contribute to nitrogen cycling and a reproducible network of decomposers that emerge on predictable time scales. Our results show that this decomposer community is derived primarily from bulk soil, but key decomposers are ubiquitous in low abundance. Soil type was not a dominant factor driving community development, and the process of decomposition is sufficiently reproducible to offer new opportunities for forensic investigations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Metcalf, Jessica L -- Xu, Zhenjiang Zech -- Weiss, Sophie -- Lax, Simon -- Van Treuren, Will -- Hyde, Embriette R -- Song, Se Jin -- Amir, Amnon -- Larsen, Peter -- Sangwan, Naseer -- Haarmann, Daniel -- Humphrey, Greg C -- Ackermann, Gail -- Thompson, Luke R -- Lauber, Christian -- Bibat, Alexander -- Nicholas, Catherine -- Gebert, Matthew J -- Petrosino, Joseph F -- Reed, Sasha C -- Gilbert, Jack A -- Lynne, Aaron M -- Bucheli, Sibyl R -- Carter, David O -- Knight, Rob -- 3 R01 HG004872-03S2/HG/NHGRI NIH HHS/ -- 5 U01 HG004866-04/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2016 Jan 8;351(6269):158-62. doi: 10.1126/science.aad2646. Epub 2015 Dec 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309, USA. Department of Pediatrics, University of California, San Diego, San Diego, CA 92037, USA. robknight@ucsd.edu jessica.metcalf@colorado.edu. ; Department of Pediatrics, University of California, San Diego, San Diego, CA 92037, USA. ; Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80303, USA. ; Department of Ecology and Evolution, University of Chicago, 1101 East 57th Street, Chicago, IL 60637, USA. Institute for Genomic and Systems Biology, University of Chicago, 900 East 57th Street, Chicago, IL 606037, USA. ; Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA. ; Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309, USA. Department of Pediatrics, University of California, San Diego, San Diego, CA 92037, USA. ; Department of Ecology and Evolution, University of Chicago, 1101 East 57th Street, Chicago, IL 60637, USA. Biosciences Division, Argonne National Laboratory, South Cass Avenue, Argonne, IL 60439, USA. ; Department of Ecology and Evolution, University of Chicago, 1101 East 57th Street, Chicago, IL 60637, USA. Biosciences Division, Argonne National Laboratory, South Cass Avenue, Argonne, IL 60439, USA. Department of Surgery, University of Chicago, A27 South Maryland Avenue, Chicago, IL 60637, USA. ; Department of Biological Sciences, Sam Houston State University, Huntsville, TX 77340, USA. ; Nestle Institute of Health Sciences, Ecole Polytechnique Federale Lausanne, Batiment H, 1015 Lausanne, Switzerland. ; BioFrontiers Institute, University of Colorado, Boulder, CO 80303, USA. ; Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA. ; U.S. Geological Survey, Southwest Biological Science Center, Moab, UT 84532, USA. ; Department of Ecology and Evolution, University of Chicago, 1101 East 57th Street, Chicago, IL 60637, USA. Institute for Genomic and Systems Biology, University of Chicago, 900 East 57th Street, Chicago, IL 606037, USA. Biosciences Division, Argonne National Laboratory, South Cass Avenue, Argonne, IL 60439, USA. Department of Surgery, University of Chicago, A27 South Maryland Avenue, Chicago, IL 60637, USA. Marine Biological Laboratory, 7 MBL St, Woods Hole, MA 02543, USA. ; Laboratory of Forensic Taphonomy, Forensic Sciences Unit, Division of Natural Sciences and Mathematics, Chaminade University of Honolulu, Honolulu, HI 96816, USA. ; Department of Pediatrics, University of California, San Diego, San Diego, CA 92037, USA. Department of Computer Science and Engineering, University of California, San Diego, San Diego, CA 92037, USA. robknight@ucsd.edu jessica.metcalf@colorado.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26657285" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/classification/*metabolism ; Biodegradation, Environmental ; *Cadaver ; Ecosystem ; Fungi/classification/*metabolism ; Mice ; *Microbial Consortia ; Nitrogen Cycle ; Soil/chemistry/classification ; *Soil Microbiology
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    Positive feedback within a kinase signaling complex functions as a switch mechanism for NF-kappaB activation (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-05-17
    Description: A switchlike response in nuclear factor-kappaB (NF-kappaB) activity implies the existence of a threshold in the NF-kappaB signaling module. We show that the CARD-containing MAGUK protein 1 (CARMA1, also called CARD11)-TAK1 (MAP3K7)-inhibitor of NF-kappaB (IkappaB) kinase-beta (IKKbeta) module is a switch mechanism for NF-kappaB activation in B cell receptor (BCR) signaling. Experimental and mathematical modeling analyses showed that IKK activity is regulated by positive feedback from IKKbeta to TAK1, generating a steep dose response to BCR stimulation. Mutation of the scaffolding protein CARMA1 at serine-578, an IKKbeta target, abrogated not only late TAK1 activity, but also the switchlike activation of NF-kappaB in single cells, suggesting that phosphorylation of this residue accounts for the feedback.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shinohara, Hisaaki -- Behar, Marcelo -- Inoue, Kentaro -- Hiroshima, Michio -- Yasuda, Tomoharu -- Nagashima, Takeshi -- Kimura, Shuhei -- Sanjo, Hideki -- Maeda, Shiori -- Yumoto, Noriko -- Ki, Sewon -- Akira, Shizuo -- Sako, Yasushi -- Hoffmann, Alexander -- Kurosaki, Tomohiro -- Okada-Hatakeyama, Mariko -- 5R01CA141722/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2014 May 16;344(6185):760-4. doi: 10.1126/science.1250020.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory for Integrated Cellular Systems, RIKEN Center for Integrative Medical Sciences (IMS-RCAI), Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan. ; Signaling Systems Laboratory, Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA. Institute for Quantitative and Computational Biosciences (QC Bio) and Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90025, USA. ; Laboratory for Cell Signaling Dynamics, RIKEN Quantitative Biology Center (QBiC), 6-2-3, Furuedai, Suita, Osaka 565-0874, Japan. Cellular Informatics Laboratory, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan. ; Laboratory for Lymphocyte Differentiation, RIKEN Center for Integrative Medical Sciences (IMS-RCAI), Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan. ; Graduate School of Engineering, Tottori University 4-101, Koyama-minami, Tottori 680-8552, Japan. ; Laboratory of Host Defense, WPI Immunology Frontier Research Center, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan. ; Cellular Informatics Laboratory, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan. ; Signaling Systems Laboratory, Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA. Institute for Quantitative and Computational Biosciences (QC Bio) and Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90025, USA. ahoffmann@ucla.edu kurosaki@rcai.riken.jp marikoh@rcai.riken.jp. ; Laboratory for Lymphocyte Differentiation, RIKEN Center for Integrative Medical Sciences (IMS-RCAI), Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan. Laboratory for Lymphocyte Differentiation, WPI Immunology Frontier Research Center, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan. ahoffmann@ucla.edu kurosaki@rcai.riken.jp marikoh@rcai.riken.jp. ; Laboratory for Integrated Cellular Systems, RIKEN Center for Integrative Medical Sciences (IMS-RCAI), Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan. ahoffmann@ucla.edu kurosaki@rcai.riken.jp marikoh@rcai.riken.jp.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24833394" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/metabolism ; CARD Signaling Adaptor Proteins/genetics/*metabolism ; Cell Line ; Chickens ; Feedback, Physiological ; Guanylate Cyclase/genetics/*metabolism ; I-kappa B Kinase/*metabolism ; MAP Kinase Kinase Kinases/genetics/*metabolism ; Mice ; Mice, Knockout ; Mutation ; NF-kappa B/*agonists ; Phosphorylation ; Receptors, Antigen, B-Cell/genetics/*metabolism ; Serine/genetics/metabolism ; Signal Transduction
    Print ISSN: 0036-8075
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    A single gene affects both ecological divergence and mate choice in Drosophila (2014)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2014-02-15
    Description: Evolutionary changes in traits involved in both ecological divergence and mate choice may produce reproductive isolation and speciation. However, there are few examples of such dual traits, and the genetic and molecular bases of their evolution have not been identified. We show that methyl-branched cuticular hydrocarbons (mbCHCs) are a dual trait that affects both desiccation resistance and mate choice in Drosophila serrata. We identify a fatty acid synthase mFAS (CG3524) responsible for mbCHC production in Drosophila and find that expression of mFAS is undetectable in oenocytes (cells that produce CHCs) of a closely related, desiccation-sensitive species, D. birchii, due in part to multiple changes in cis-regulatory sequences of mFAS. We suggest that ecologically influenced changes in the production of mbCHCs have contributed to reproductive isolation between the two species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chung, Henry -- Loehlin, David W -- Dufour, Heloise D -- Vaccarro, Kathy -- Millar, Jocelyn G -- Carroll, Sean B -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Mar 7;343(6175):1148-51. doi: 10.1126/science.1249998. Epub 2014 Feb 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Laboratory of Molecular Biology, University of Wisconsin, Madison, WI 53706, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24526311" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Desiccation ; Drosophila/*genetics/physiology ; Ecosystem ; Evolution, Molecular ; Fatty Acid Synthases/*genetics/physiology ; *Genes, Insect ; *Genetic Variation ; Hydrocarbons/*metabolism ; *Mating Preference, Animal ; Molecular Sequence Data ; *Reproductive Isolation
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Climate science. In new report, IPCC gets more specific about warming risks (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-04-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kintisch, Eli -- New York, N.Y. -- Science. 2014 Apr 4;344(6179):21. doi: 10.1126/science.344.6179.21.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24700832" target="_blank"〉PubMed〈/a〉
    Keywords: *Climate Change/economics ; Ecosystem ; Floods ; Food Supply ; Water Supply
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    Land use. Cracking Brazil's Forest Code (2014)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2014-04-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soares-Filho, Britaldo -- Rajao, Raoni -- Macedo, Marcia -- Carneiro, Arnaldo -- Costa, William -- Coe, Michael -- Rodrigues, Hermann -- Alencar, Ane -- New York, N.Y. -- Science. 2014 Apr 25;344(6182):363-4. doi: 10.1126/science.1246663.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24763575" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture ; Brazil ; Conservation of Natural Resources/*legislation & jurisprudence ; Ecosystem ; Public Policy ; *Trees
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    FoxP influences the speed and accuracy of a perceptual decision in Drosophila (2014)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2014-05-24
    Description: Decisions take time if information gradually accumulates to a response threshold, but the neural mechanisms of integration and thresholding are unknown. We characterized a decision process in Drosophila that bears the behavioral signature of evidence accumulation. As stimulus contrast in trained odor discriminations decreased, reaction times increased and perceptual accuracy declined, in quantitative agreement with a drift-diffusion model. FoxP mutants took longer than wild-type flies to form decisions of similar or reduced accuracy, especially in difficult, low-contrast tasks. RNA interference with FoxP expression in alphabeta core Kenyon cells, or the overexpression of a potassium conductance in these neurons, recapitulated the FoxP mutant phenotype. A mushroom body subdomain whose development or function require the transcription factor FoxP thus supports the progression of a decision toward commitment.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4206523/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4206523/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DasGupta, Shamik -- Ferreira, Clara Howcroft -- Miesenbock, Gero -- 090309/Wellcome Trust/United Kingdom -- G0700888/Medical Research Council/United Kingdom -- G0701225/Medical Research Council/United Kingdom -- R01 DA030601/DA/NIDA NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2014 May 23;344(6186):901-4. doi: 10.1126/science.1252114.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Neural Circuits and Behaviour, University of Oxford, Tinsley Building, Mansfield Road, Oxford, OX1 3SR, UK. ; Centre for Neural Circuits and Behaviour, University of Oxford, Tinsley Building, Mansfield Road, Oxford, OX1 3SR, UK. gero.miesenboeck@cncb.ox.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24855268" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; Cell Line ; *Decision Making ; Drosophila Proteins/genetics/*physiology ; Drosophila melanogaster/genetics/*physiology ; Forkhead Transcription Factors/genetics/*physiology ; Mushroom Bodies/growth & development/metabolism ; Mutation ; Neurons/physiology ; Odors ; *Psychomotor Performance ; RNA Interference ; Reaction Time/genetics/*physiology ; Smell
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    Promoter-bound trinucleotide repeat mRNA drives epigenetic silencing in fragile X syndrome (2014)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2014-03-01
    Description: Epigenetic gene silencing is seen in several repeat-expansion diseases. In fragile X syndrome, the most common genetic form of mental retardation, a CGG trinucleotide-repeat expansion adjacent to the fragile X mental retardation 1 (FMR1) gene promoter results in its epigenetic silencing. Here, we show that FMR1 silencing is mediated by the FMR1 mRNA. The FMR1 mRNA contains the transcribed CGG-repeat tract as part of the 5' untranslated region, which hybridizes to the complementary CGG-repeat portion of the FMR1 gene to form an RNA.DNA duplex. Disrupting the interaction of the mRNA with the CGG-repeat portion of the FMR1 gene prevents promoter silencing. Thus, our data link trinucleotide-repeat expansion to a form of RNA-directed gene silencing mediated by direct interactions of the trinucleotide-repeat RNA and DNA.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4357282/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4357282/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Colak, Dilek -- Zaninovic, Nikica -- Cohen, Michael S -- Rosenwaks, Zev -- Yang, Wang-Yong -- Gerhardt, Jeannine -- Disney, Matthew D -- Jaffrey, Samie R -- R01 GM079235/GM/NIGMS NIH HHS/ -- R01 MH80420/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2014 Feb 28;343(6174):1002-5. doi: 10.1126/science.1245831.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24578575" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; DNA Methylation ; Embryonic Stem Cells/metabolism ; Fragile X Mental Retardation Protein/*genetics ; Fragile X Syndrome/*genetics ; *Gene Silencing ; Humans ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Neurons/metabolism ; Nuclear Proteins/genetics ; Promoter Regions, Genetic/genetics ; RNA, Messenger/*genetics ; RNA, Small Interfering/genetics ; Trinucleotide Repeats/*genetics
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Membrane trafficking. Nucleoside diphosphate kinases fuel dynamin superfamily proteins with GTP for membrane remodeling (2014)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2014-06-28
    Description: Dynamin superfamily molecular motors use guanosine triphosphate (GTP) as a source of energy for membrane-remodeling events. We found that knockdown of nucleoside diphosphate kinases (NDPKs) NM23-H1/H2, which produce GTP through adenosine triphosphate (ATP)-driven conversion of guanosine diphosphate (GDP), inhibited dynamin-mediated endocytosis. NM23-H1/H2 localized at clathrin-coated pits and interacted with the proline-rich domain of dynamin. In vitro, NM23-H1/H2 were recruited to dynamin-induced tubules, stimulated GTP-loading on dynamin, and triggered fission in the presence of ATP and GDP. NM23-H4, a mitochondria-specific NDPK, colocalized with mitochondrial dynamin-like OPA1 involved in mitochondria inner membrane fusion and increased GTP-loading on OPA1. Like OPA1 loss of function, silencing of NM23-H4 but not NM23-H1/H2 resulted in mitochondrial fragmentation, reflecting fusion defects. Thus, NDPKs interact with and provide GTP to dynamins, allowing these motor proteins to work with high thermodynamic efficiency.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4601533/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4601533/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boissan, Mathieu -- Montagnac, Guillaume -- Shen, Qinfang -- Griparic, Lorena -- Guitton, Jerome -- Romao, Maryse -- Sauvonnet, Nathalie -- Lagache, Thibault -- Lascu, Ioan -- Raposo, Graca -- Desbourdes, Celine -- Schlattner, Uwe -- Lacombe, Marie-Lise -- Polo, Simona -- van der Bliek, Alexander M -- Roux, Aurelien -- Chavrier, Philippe -- 311536/European Research Council/International -- New York, N.Y. -- Science. 2014 Jun 27;344(6191):1510-5. doi: 10.1126/science.1253768.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut Curie, Research Center, Paris, France. Membrane and Cytoskeleton Dynamics, CNRS UMR 144, Paris, France. Universite Pierre et Marie Curie, University Paris 06, Paris, France. Saint-Antoine Research Center, INSERM UMR-S 938, Paris, France. mathieu.boissan@inserm.fr philippe.chavrier@curie.fr. ; Institut Curie, Research Center, Paris, France. Membrane and Cytoskeleton Dynamics, CNRS UMR 144, Paris, France. ; Department of Biological Chemistry, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, USA. ; Hospices Civils de Lyon, Pierre Benite, France. Universite de Lyon, Lyon, France. ; Institut Curie, Research Center, Paris, France. Structure and Membrane Compartments, CNRS UMR 144, Paris, France. ; Institut Pasteur, Unite de Biologie des Interactions Cellulaires, Paris, France. ; Quantitative Image Analysis Unit, Institut Pasteur, Paris, France. ; Institut de Biochimie et Genetique Cellulaires-CNRS, Universite Bordeaux 2, Bordeaux, France. ; Universite Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Grenoble, France. Inserm, U1055, Grenoble, France. ; Universite Pierre et Marie Curie, University Paris 06, Paris, France. Saint-Antoine Research Center, INSERM UMR-S 938, Paris, France. ; IFOM, Fondazione Istituto FIRC di Oncologia Molecolare, Milan, Italy. Dipartimento di Scienze della Salute, Universita' degli Studi di Milano, Milan, Italy. ; Biochemistry Department, University of Geneva, & Swiss National Center for Competence in Research Program Chemical Biology, Geneva, Switzerland. ; Institut Curie, Research Center, Paris, France. Membrane and Cytoskeleton Dynamics, CNRS UMR 144, Paris, France. mathieu.boissan@inserm.fr philippe.chavrier@curie.fr.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24970086" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Animals ; Cell Line ; Cell Membrane/*metabolism ; Coated Pits, Cell-Membrane/metabolism ; Dynamins/*metabolism ; Endocytosis ; GTP Phosphohydrolases/metabolism ; Guanosine Diphosphate/metabolism ; Guanosine Triphosphate/*metabolism ; Humans ; Intracellular Membranes/metabolism ; Membrane Fusion ; Mitochondria/metabolism ; NM23 Nucleoside Diphosphate Kinases/genetics/*metabolism ; Nucleoside Diphosphate Kinase D/metabolism
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    Optical control of muscle function by transplantation of stem cell-derived motor neurons in mice (2014)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2014-04-05
    Description: Damage to the central nervous system caused by traumatic injury or neurological disorders can lead to permanent loss of voluntary motor function and muscle paralysis. Here, we describe an approach that circumvents central motor circuit pathology to restore specific skeletal muscle function. We generated murine embryonic stem cell-derived motor neurons that express the light-sensitive ion channel channelrhodopsin-2, which we then engrafted into partially denervated branches of the sciatic nerve of adult mice. These engrafted motor neurons not only reinnervated lower hind-limb muscles but also enabled their function to be restored in a controllable manner using optogenetic stimulation. This synthesis of regenerative medicine and optogenetics may be a successful strategy to restore muscle function after traumatic injury or disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bryson, J Barney -- Machado, Carolina Barcellos -- Crossley, Martin -- Stevenson, Danielle -- Bros-Facer, Virginie -- Burrone, Juan -- Greensmith, Linda -- Lieberam, Ivo -- 095589/Wellcome Trust/United Kingdom -- G0900585/Medical Research Council/United Kingdom -- G1001234/Biotechnology and Biological Sciences Research Council/United Kingdom -- MR/K000608/1/Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2014 Apr 4;344(6179):94-7. doi: 10.1126/science.1248523.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Sobell Department of Motor Neuroscience and Movement Disorders, University College London (UCL) Institute of Neurology, London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24700859" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/physiology ; Cell Line ; Electric Stimulation ; Embryonic Stem Cells/cytology/physiology ; Female ; Hindlimb ; Isometric Contraction ; *Light ; Mice ; Mice, Inbred C57BL ; Motor Neurons/cytology/*physiology/*transplantation ; Muscle Denervation ; Muscle Fibers, Skeletal/physiology ; Muscle, Skeletal/*innervation/*physiology ; Nerve Regeneration ; *Optogenetics ; Rhodopsin/genetics/metabolism ; Sciatic Nerve/physiology ; Transfection ; Transgenes
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    Highly multiplexed subcellular RNA sequencing in situ (2014)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2014-03-01
    Description: Understanding the spatial organization of gene expression with single-nucleotide resolution requires localizing the sequences of expressed RNA transcripts within a cell in situ. Here, we describe fluorescent in situ RNA sequencing (FISSEQ), in which stably cross-linked complementary DNA (cDNA) amplicons are sequenced within a biological sample. Using 30-base reads from 8102 genes in situ, we examined RNA expression and localization in human primary fibroblasts with a simulated wound-healing assay. FISSEQ is compatible with tissue sections and whole-mount embryos and reduces the limitations of optical resolution and noisy signals on single-molecule detection. Our platform enables massively parallel detection of genetic elements, including gene transcripts and molecular barcodes, and can be used to investigate cellular phenotype, gene regulation, and environment in situ.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4140943/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4140943/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Je Hyuk -- Daugharthy, Evan R -- Scheiman, Jonathan -- Kalhor, Reza -- Yang, Joyce L -- Ferrante, Thomas C -- Terry, Richard -- Jeanty, Sauveur S F -- Li, Chao -- Amamoto, Ryoji -- Peters, Derek T -- Turczyk, Brian M -- Marblestone, Adam H -- Inverso, Samuel A -- Bernard, Amy -- Mali, Prashant -- Rios, Xavier -- Aach, John -- Church, George M -- GM080177/GM/NIGMS NIH HHS/ -- MH098977/MH/NIMH NIH HHS/ -- P50 HG005550/HG/NHGRI NIH HHS/ -- RC2 HL102815/HL/NHLBI NIH HHS/ -- RC2HL102815/HL/NHLBI NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- T32 GM080177/GM/NIGMS NIH HHS/ -- U01 MH098977/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2014 Mar 21;343(6177):1360-3. doi: 10.1126/science.1250212. Epub 2014 Feb 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wyss Institute, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24578530" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cell Line ; Cells, Cultured ; DNA, Complementary ; Fluorescence ; Gene Expression Profiling/*methods ; Humans ; Induced Pluripotent Stem Cells ; RNA, Messenger/genetics/metabolism ; Sequence Analysis, RNA/*methods ; Single-Cell Analysis ; Transcription Initiation Site ; *Transcriptome ; Wound Healing
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    Structures of PI4KIIIbeta complexes show simultaneous recruitment of Rab11 and its effectors (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-05-31
    Description: Phosphatidylinositol 4-kinases (PI4Ks) and small guanosine triphosphatases (GTPases) are essential for processes that require expansion and remodeling of phosphatidylinositol 4-phosphate (PI4P)-containing membranes, including cytokinesis, intracellular development of malarial pathogens, and replication of a wide range of RNA viruses. However, the structural basis for coordination of PI4K, GTPases, and their effectors is unknown. Here, we describe structures of PI4Kbeta (PI4KIIIbeta) bound to the small GTPase Rab11a without and with the Rab11 effector protein FIP3. The Rab11-PI4KIIIbeta interface is distinct compared with known structures of Rab complexes and does not involve switch regions used by GTPase effectors. Our data provide a mechanism for how PI4KIIIbeta coordinates Rab11 and its effectors on PI4P-enriched membranes and also provide strategies for the design of specific inhibitors that could potentially target plasmodial PI4KIIIbeta to combat malaria.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4046302/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4046302/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burke, John E -- Inglis, Alison J -- Perisic, Olga -- Masson, Glenn R -- McLaughlin, Stephen H -- Rutaganira, Florentine -- Shokat, Kevan M -- Williams, Roger L -- MC_U105184308/Medical Research Council/United Kingdom -- PG/11/109/29247/British Heart Foundation/United Kingdom -- PG11/109/29247/British Heart Foundation/United Kingdom -- R01AI099245/AI/NIAID NIH HHS/ -- T32 GM064337/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 May 30;344(6187):1035-8. doi: 10.1126/science.1253397.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council (MRC) Laboratory of Molecular Biology, Cambridge CB2 0QH, UK. jeburke@uvic.ca rlw@mrc-lmb.cam.ac.uk. ; Medical Research Council (MRC) Laboratory of Molecular Biology, Cambridge CB2 0QH, UK. ; Howard Hughes Medical Institute and Department of Cellular and Molecular Pharmacology, University of California, San Francisco (UCSF), San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24876499" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antimalarials/chemistry/pharmacology ; Binding Sites ; Cell Line ; Crystallography, X-Ray ; Drug Design ; Humans ; I-kappa B Kinase/*chemistry ; Molecular Sequence Data ; Mutation ; Phosphotransferases (Alcohol Group Acceptor)/*chemistry/genetics ; Plasmodium/drug effects/growth & development ; Protein Binding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; rab GTP-Binding Proteins/*chemistry
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    Gas revolution. The gas surge. Introduction (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-06-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, David -- New York, N.Y. -- Science. 2014 Jun 27;344(6191):1464-7. doi: 10.1126/science.344.6191.1464.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24970074" target="_blank"〉PubMed〈/a〉
    Keywords: Climate Change ; Ecosystem ; Environmental Pollution ; *Natural Gas/economics/toxicity ; *Oil and Gas Fields ; United States ; Water Quality
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    Single-cell genomics reveals hundreds of coexisting subpopulations in wild Prochlorococcus (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-04-26
    Description: Extensive genomic diversity within coexisting members of a microbial species has been revealed through selected cultured isolates and metagenomic assemblies. Yet, the cell-by-cell genomic composition of wild uncultured populations of co-occurring cells is largely unknown. In this work, we applied large-scale single-cell genomics to study populations of the globally abundant marine cyanobacterium Prochlorococcus. We show that they are composed of hundreds of subpopulations with distinct "genomic backbones," each backbone consisting of a different set of core gene alleles linked to a small distinctive set of flexible genes. These subpopulations are estimated to have diverged at least a few million years ago, suggesting ancient, stable niche partitioning. Such a large set of coexisting subpopulations may be a general feature of free-living bacterial species with huge populations in highly mixed habitats.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kashtan, Nadav -- Roggensack, Sara E -- Rodrigue, Sebastien -- Thompson, Jessie W -- Biller, Steven J -- Coe, Allison -- Ding, Huiming -- Marttinen, Pekka -- Malmstrom, Rex R -- Stocker, Roman -- Follows, Michael J -- Stepanauskas, Ramunas -- Chisholm, Sallie W -- New York, N.Y. -- Science. 2014 Apr 25;344(6182):416-20. doi: 10.1126/science.1248575.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24763590" target="_blank"〉PubMed〈/a〉
    Keywords: Atlantic Ocean ; Biological Evolution ; Ecosystem ; Genes, Bacterial ; *Genetic Variation ; *Genome, Bacterial ; Metagenomics ; Molecular Sequence Data ; Mutation ; Phylogeny ; Polymorphism, Single Nucleotide ; Prochlorococcus/classification/*genetics/*physiology ; Seasons ; Seawater/*microbiology ; Sequence Analysis, DNA ; Single-Cell Analysis
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    Chromatin decondensation is sufficient to alter nuclear organization in embryonic stem cells (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-12-06
    Description: During differentiation, thousands of genes are repositioned toward or away from the nuclear envelope. These movements correlate with changes in transcription and replication timing. Using synthetic (TALE) transcription factors, we found that transcriptional activation of endogenous genes by a viral trans-activator is sufficient to induce gene repositioning toward the nuclear interior in embryonic stem cells. However, gene relocation was also induced by recruitment of an acidic peptide that decondenses chromatin without affecting transcription, indicating that nuclear reorganization is driven by chromatin remodeling rather than transcription. We identified an epigenetic inheritance of chromatin decondensation that maintained central nuclear positioning through mitosis even after the TALE transcription factor was lost. Our results also demonstrate that transcriptional activation, but not chromatin decondensation, is sufficient to change replication timing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Therizols, Pierre -- Illingworth, Robert S -- Courilleau, Celine -- Boyle, Shelagh -- Wood, Andrew J -- Bickmore, Wendy A -- 102560/Wellcome Trust/United Kingdom -- MC_PC_U127527202/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2014 Dec 5;346(6214):1238-42. doi: 10.1126/science.1259587.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Crewe Road, Edinburgh EH4 2XU, UK. ; MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Crewe Road, Edinburgh EH4 2XU, UK. wendy.bickmore@igmm.ed.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25477464" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation/*genetics ; Cell Line ; Cell Nucleus/*genetics/metabolism/ultrastructure ; Chromatin/*metabolism ; *Chromatin Assembly and Disassembly ; DNA Replication ; Embryonic Stem Cells/*cytology/metabolism ; *Epigenesis, Genetic ; Mice ; Nuclear Envelope/genetics/metabolism/ultrastructure ; Trans-Activators/*metabolism ; *Transcriptional Activation
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    Global rates of marine sulfate reduction and implications for sub-sea-floor metabolic activities (2014)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2014-05-09
    Description: Sulfate reduction is a globally important redox process in marine sediments, yet global rates are poorly quantified. We developed an artificial neural network trained with 199 sulfate profiles, constrained with geomorphological and geochemical maps to estimate global sulfate-reduction rate distributions. Globally, 11.3 teramoles of sulfate are reduced yearly (~15% of previous estimates), accounting for the oxidation of 12 to 29% of the organic carbon flux to the sea floor. Combined with global cell distributions in marine sediments, these results indicate a strong contrast in sub-sea-floor prokaryote habitats: In continental margins, global cell numbers in sulfate-depleted sediment exceed those in the overlying sulfate-bearing sediment by one order of magnitude, whereas in the abyss, most life occurs in oxic and/or sulfate-reducing sediments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bowles, Marshall W -- Mogollon, Jose M -- Kasten, Sabine -- Zabel, Matthias -- Hinrichs, Kai-Uwe -- New York, N.Y. -- Science. 2014 May 23;344(6186):889-91. doi: 10.1126/science.1249213. Epub 2014 May 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MARUM Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany. bowlesmw@uni-bremen.de. ; MARUM Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany. Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany. Department of Earth Sciences-Geochemistry, Faculty of Geosciences, Utrecht University, Netherlands. ; MARUM Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany. Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany. ; MARUM Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24812207" target="_blank"〉PubMed〈/a〉
    Keywords: Carbon/*metabolism ; Ecosystem ; Geologic Sediments/*microbiology ; Neural Networks (Computer) ; Oxidation-Reduction ; Seawater/*microbiology ; Sulfates/*metabolism
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    Marine Science. Boundless no more (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-10-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vincent, Amanda C J -- Harris, Jean M -- New York, N.Y. -- Science. 2014 Oct 24;346(6208):420-1. doi: 10.1126/science.1255923.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Project Seahorse, Fisheries Centre, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada. a.vincent@fisheries.ubc.ca. ; Scientific Services, Ezemvelo KwaZulu-Natal Wildlife, Pietermaritzburg 3202, South Africa.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25342785" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Aquatic Organisms ; Conservation of Natural Resources/*legislation & jurisprudence/*methods ; Ecosystem ; Female ; Fisheries/economics/*legislation & jurisprudence ; *Fishes ; Food Safety ; Introduced Species ; Male ; Marine Biology ; Seafood ; Water Pollution ; Women, Working
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Caspase-mediated cleavage of phospholipid flippase for apoptotic phosphatidylserine exposure (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-06-07
    Description: Phospholipids are asymmetrically distributed in the plasma membrane. This asymmetrical distribution is disrupted during apoptosis, exposing phosphatidylserine (PtdSer) on the cell surface. Using a haploid genetic screen in human cells, we found that ATP11C (adenosine triphosphatase type 11C) and CDC50A (cell division cycle protein 50A) are required for aminophospholipid translocation from the outer to the inner plasma membrane leaflet; that is, they display flippase activity. ATP11C contained caspase recognition sites, and mutations at these sites generated caspase-resistant ATP11C without affecting its flippase activity. Cells expressing caspase-resistant ATP11C did not expose PtdSer during apoptosis and were not engulfed by macrophages, which suggests that inactivation of the flippase activity is required for apoptotic PtdSer exposure. CDC50A-deficient cells displayed PtdSer on their surface and were engulfed by macrophages, indicating that PtdSer is sufficient as an "eat me" signal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Segawa, Katsumori -- Kurata, Sachiko -- Yanagihashi, Yuichi -- Brummelkamp, Thijn R -- Matsuda, Fumihiko -- Nagata, Shigekazu -- New York, N.Y. -- Science. 2014 Jun 6;344(6188):1164-8. doi: 10.1126/science.1252809.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Yoshida-Konoe, Kyoto 606-8501, Japan. ; Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, Netherlands. ; Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Yoshida-Konoe, Kyoto 606-8501, Japan. ; Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Yoshida-Konoe, Kyoto 606-8501, Japan. Core Research for Evolutional Science and Technology, Japan Science and Technology Corporation, Kyoto 606-8501, Japan. snagata@mfour.med.kyoto-u.ac.jp.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24904167" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/genetics/*metabolism ; *Apoptosis ; Caspases/*metabolism ; Cell Line ; Cell Membrane/*enzymology ; Genetic Testing ; Humans ; Membrane Proteins/*metabolism ; Membrane Transport Proteins ; Phosphatidylserines/*metabolism ; Phospholipid Transfer Proteins/genetics/*metabolism ; Protein Transport
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    Systems biology. Accurate information transmission through dynamic biochemical signaling networks (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-12-17
    Description: Stochasticity inherent to biochemical reactions (intrinsic noise) and variability in cellular states (extrinsic noise) degrade information transmitted through signaling networks. We analyzed the ability of temporal signal modulation--that is, dynamics--to reduce noise-induced information loss. In the extracellular signal-regulated kinase (ERK), calcium (Ca(2+)), and nuclear factor kappa-B (NF-kappaB) pathways, response dynamics resulted in significantly greater information transmission capacities compared to nondynamic responses. Theoretical analysis demonstrated that signaling dynamics has a key role in overcoming extrinsic noise. Experimental measurements of information transmission in the ERK network under varying signal-to-noise levels confirmed our predictions and showed that signaling dynamics mitigate, and can potentially eliminate, extrinsic noise-induced information loss. By curbing the information-degrading effects of cell-to-cell variability, dynamic responses substantially increase the accuracy of biochemical signaling networks.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Selimkhanov, Jangir -- Taylor, Brooks -- Yao, Jason -- Pilko, Anna -- Albeck, John -- Hoffmann, Alexander -- Tsimring, Lev -- Wollman, Roy -- P50 GM085764/GM/NIGMS NIH HHS/ -- P50-GM085764/GM/NIGMS NIH HHS/ -- R01 GM089976/GM/NIGMS NIH HHS/ -- R01-GM071573/GM/NIGMS NIH HHS/ -- R01-GM089976/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2014 Dec 12;346(6215):1370-3. doi: 10.1126/science.1254933.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioengineering, University of California-San Diego, La Jolla, CA 92093, USA. ; Department of Chemistry and Biochemistry, University of California-San Diego, La Jolla, CA 92093, USA. ; Department of Molecular and Cellular Biology, University of California-Davis, Davis 95616, USA. ; San Diego Center for Systems Biology, La Jolla, CA 92093, USA. Institute for Quantitative and Computational Biosciences and Department of Microbiology, Immunology, and Molecular Genetics, University of California-Los Angeles, Los Angeles, CA 90025, USA. ; San Diego Center for Systems Biology, La Jolla, CA 92093, USA. BioCircuits Institute, University of California-San Diego, La Jolla, CA 92093, USA. ; Department of Chemistry and Biochemistry, University of California-San Diego, La Jolla, CA 92093, USA. San Diego Center for Systems Biology, La Jolla, CA 92093, USA. Cell and Developmental Biology Section, Division of Biological Sciences, University of California-San Diego, La Jolla, CA 92093, USA. rwollman@ucsd.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25504722" target="_blank"〉PubMed〈/a〉
    Keywords: *Calcium Signaling ; Cell Line ; Computer Simulation ; Extracellular Signal-Regulated MAP Kinases/*metabolism ; Humans ; *MAP Kinase Signaling System ; NF-kappa B/*metabolism ; *Signal Transduction ; Signal-To-Noise Ratio ; Single-Cell Analysis ; Systems Biology
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    Virus entry. Lassa virus entry requires a trigger-induced receptor switch (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-06-28
    Description: Lassa virus spreads from a rodent to humans and can lead to lethal hemorrhagic fever. Despite its broad tropism, chicken cells were reported 30 years ago to resist infection. We found that Lassa virus readily engaged its cell-surface receptor alpha-dystroglycan in avian cells, but virus entry in susceptible species involved a pH-dependent switch to an intracellular receptor, the lysosome-resident protein LAMP1. Iterative haploid screens revealed that the sialyltransferase ST3GAL4 was required for the interaction of the virus glycoprotein with LAMP1. A single glycosylated residue in LAMP1, present in susceptible species but absent in birds, was essential for interaction with the Lassa virus envelope protein and subsequent infection. The resistance of Lamp1-deficient mice to Lassa virus highlights the relevance of this receptor switch in vivo.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4239993/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4239993/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jae, Lucas T -- Raaben, Matthijs -- Herbert, Andrew S -- Kuehne, Ana I -- Wirchnianski, Ariel S -- Soh, Timothy K -- Stubbs, Sarah H -- Janssen, Hans -- Damme, Markus -- Saftig, Paul -- Whelan, Sean P -- Dye, John M -- Brummelkamp, Thijn R -- AI081842/AI/NIAID NIH HHS/ -- AI109740/AI/NIAID NIH HHS/ -- R01 AI081842/AI/NIAID NIH HHS/ -- T32 AI007245/AI/NIAID NIH HHS/ -- U19 AI109740/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2014 Jun 27;344(6191):1506-10. doi: 10.1126/science.1252480.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, Netherlands. ; Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, Netherlands. Department of Microbiology and Immunobiology, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA. ; U.S. Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Fort Detrick, MD 21702-5011, USA. ; Department of Microbiology and Immunobiology, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA. ; Biochemisches Institut, Christian Albrechts-Universitat Kiel, 24118 Kiel, Germany. ; Department of Microbiology and Immunobiology, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA. t.brummelkamp@nki.nl john.m.dye1.civ@mail.mil sean_whelan@hms.harvard.edu. ; U.S. Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Fort Detrick, MD 21702-5011, USA. t.brummelkamp@nki.nl john.m.dye1.civ@mail.mil sean_whelan@hms.harvard.edu. ; Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, Netherlands. CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria. Cancer Genomics Center (CGC.nl), Plesmanlaan 121, 1066 CX, Amsterdam, Netherlands. t.brummelkamp@nki.nl john.m.dye1.civ@mail.mil sean_whelan@hms.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24970085" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; Cell Membrane/metabolism/virology ; Cells, Cultured ; Chickens ; Dystroglycans/genetics/metabolism ; Glycosylation ; Humans ; Hydrogen-Ion Concentration ; Lassa Fever/virology ; Lassa virus/*physiology ; Lysosomal-Associated Membrane Protein 1/chemistry/*metabolism ; Lysosomes/metabolism/virology ; Mice ; Mice, Knockout ; Molecular Sequence Data ; Protein Binding ; Receptors, Virus/*metabolism ; Sialyltransferases/metabolism ; Viral Envelope Proteins/*metabolism ; *Virus Internalization
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    Specific and nonhepatotoxic degradation of nuclear hepatitis B virus cccDNA (2014)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2014-02-22
    Description: Current antiviral agents can control but not eliminate hepatitis B virus (HBV), because HBV establishes a stable nuclear covalently closed circular DNA (cccDNA). Interferon-alpha treatment can clear HBV but is limited by systemic side effects. We describe how interferon-alpha can induce specific degradation of the nuclear viral DNA without hepatotoxicity and propose lymphotoxin-beta receptor activation as a therapeutic alternative. Interferon-alpha and lymphotoxin-beta receptor activation up-regulated APOBEC3A and APOBEC3B cytidine deaminases, respectively, in HBV-infected cells, primary hepatocytes, and human liver needle biopsies. HBV core protein mediated the interaction with nuclear cccDNA, resulting in cytidine deamination, apurinic/apyrimidinic site formation, and finally cccDNA degradation that prevented HBV reactivation. Genomic DNA was not affected. Thus, inducing nuclear deaminases-for example, by lymphotoxin-beta receptor activation-allows the development of new therapeutics that, in combination with existing antivirals, may cure hepatitis B.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lucifora, Julie -- Xia, Yuchen -- Reisinger, Florian -- Zhang, Ke -- Stadler, Daniela -- Cheng, Xiaoming -- Sprinzl, Martin F -- Koppensteiner, Herwig -- Makowska, Zuzanna -- Volz, Tassilo -- Remouchamps, Caroline -- Chou, Wen-Min -- Thasler, Wolfgang E -- Huser, Norbert -- Durantel, David -- Liang, T Jake -- Munk, Carsten -- Heim, Markus H -- Browning, Jeffrey L -- Dejardin, Emmanuel -- Dandri, Maura -- Schindler, Michael -- Heikenwalder, Mathias -- Protzer, Ulrike -- New York, N.Y. -- Science. 2014 Mar 14;343(6176):1221-8. doi: 10.1126/science.1243462. Epub 2014 Feb 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Virology, Technische Universitat Munchen-Helmholtz Zentrum Munchen, 81675 Munich, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24557838" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal ; Antiviral Agents/*pharmacology/therapeutic use ; Cell Line ; Cell Nucleus/virology ; Cytidine/metabolism ; Cytidine Deaminase/biosynthesis ; DNA, Circular/*metabolism ; DNA, Viral/*metabolism ; Hepatitis B/*drug therapy ; Hepatitis B virus/*drug effects/metabolism ; Hepatocytes/*drug effects/metabolism/virology ; Humans ; Interferon-alpha/*pharmacology/therapeutic use ; Liver/drug effects/metabolism/virology ; Lymphotoxin beta Receptor/*agonists/antagonists & inhibitors ; Mice, SCID ; Proteins ; Up-Regulation
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    Feedback control of chromosome separation by a midzone Aurora B gradient (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-06-14
    Description: Accurate chromosome segregation during mitosis requires the physical separation of sister chromatids before nuclear envelope reassembly (NER). However, how these two processes are coordinated remains unknown. Here, we identified a conserved feedback control mechanism that delays chromosome decondensation and NER in response to incomplete chromosome separation during anaphase. A midzone-associated Aurora B gradient was found to monitor chromosome position along the division axis and to prevent premature chromosome decondensation by retaining Condensin I. PP1/PP2A phosphatases counteracted this gradient and promoted chromosome decondensation and NER. Thus, an Aurora B gradient appears to mediate a surveillance mechanism that prevents chromosome decondensation and NER until effective separation of sister chromatids is achieved. This allows the correction and reintegration of lagging chromosomes in the main nuclei before completion of NER.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Afonso, Olga -- Matos, Irina -- Pereira, Antonio J -- Aguiar, Paulo -- Lampson, Michael A -- Maiato, Helder -- New York, N.Y. -- Science. 2014 Jul 18;345(6194):332-6. doi: 10.1126/science.1251121. Epub 2014 Jun 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chromosome Instability and Dynamics Laboratory, Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal. ; Chromosome Instability and Dynamics Laboratory, Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal. Center for Mathematics, Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal. ; Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA. ; Chromosome Instability and Dynamics Laboratory, Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal. Cell Division Unit, Department of Experimental Biology, Faculdade de Medicina, Universidade do Porto, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal. maiato@ibmc.up.pt.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24925910" target="_blank"〉PubMed〈/a〉
    Keywords: *Anaphase ; Animals ; Aurora Kinase B/antagonists & inhibitors/genetics/*metabolism ; Cell Line ; Cell Line, Tumor ; Chromosome Segregation/genetics/*physiology ; Drosophila ; *Feedback, Physiological ; Humans ; Nuclear Envelope/genetics/*metabolism ; Protein Phosphatase 1/metabolism ; Protein Phosphatase 2/metabolism
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    Controlling low rates of cell differentiation through noise and ultrahigh feedback (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-06-21
    Description: Mammalian tissue size is maintained by slow replacement of de-differentiating and dying cells. For adipocytes, key regulators of glucose and lipid metabolism, the renewal rate is only 10% per year. We used computational modeling, quantitative mass spectrometry, and single-cell microscopy to show that cell-to-cell variability, or noise, in protein abundance acts within a network of more than six positive feedbacks to permit pre-adipocytes to differentiate at very low rates. This reconciles two fundamental opposing requirements: High cell-to-cell signal variability is needed to generate very low differentiation rates, whereas low signal variability is needed to prevent differentiated cells from de-differentiating. Higher eukaryotes can thus control low rates of near irreversible cell fate decisions through a balancing act between noise and ultrahigh feedback connectivity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4733388/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4733388/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ahrends, Robert -- Ota, Asuka -- Kovary, Kyle M -- Kudo, Takamasa -- Park, Byung Ouk -- Teruel, Mary N -- P50 GM107615/GM/NIGMS NIH HHS/ -- P50GM107615/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2014 Jun 20;344(6190):1384-9. doi: 10.1126/science.1252079.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical and Systems Biology, Stanford University, Stanford, CA 94305, USA. ; Department of Chemical and Systems Biology, Stanford University, Stanford, CA 94305, USA. mteruel@stanford.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24948735" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/*cytology ; *Adipogenesis ; Animals ; CCAAT-Enhancer-Binding Proteins/genetics/metabolism ; Cell Communication ; Cell Differentiation ; Cell Line ; Computer Simulation ; Feedback, Physiological ; Mass Spectrometry ; Mice ; *Models, Biological ; PPAR gamma/genetics/metabolism ; RNA, Small Interfering/genetics ; Single-Cell Analysis ; Stem Cells/cytology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Delisted whales good news for pipeline (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-07-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alava, Juan Jose -- Silberg, Joshua N -- New York, N.Y. -- Science. 2014 Jul 18;345(6194):278-9. doi: 10.1126/science.345.6194.278-c. Epub 2014 Jul 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Resource and Environmental Management, Faculty of Environment, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada. Fundacion Ecuatoriana para el Estudio de Mamiferos Marinos, Guayaquil, Ecuador. jalavasa@sfu.ca. ; School of Resource and Environmental Management, Faculty of Environment, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25035482" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Canada ; Ecosystem ; Endangered Species/*statistics & numerical data ; *Whales
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    Enteric bacteria promote human and mouse norovirus infection of B cells (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-11-08
    Description: The cell tropism of human noroviruses and the development of an in vitro infection model remain elusive. Although susceptibility to individual human norovirus strains correlates with an individual's histo-blood group antigen (HBGA) profile, the biological basis of this restriction is unknown. We demonstrate that human and mouse noroviruses infected B cells in vitro and likely in vivo. Human norovirus infection of B cells required the presence of HBGA-expressing enteric bacteria. Furthermore, mouse norovirus replication was reduced in vivo when the intestinal microbiota was depleted by means of oral antibiotic administration. Thus, we have identified B cells as a cellular target of noroviruses and enteric bacteria as a stimulatory factor for norovirus infection, leading to the development of an in vitro infection model for human noroviruses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4401463/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4401463/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, Melissa K -- Watanabe, Makiko -- Zhu, Shu -- Graves, Christina L -- Keyes, Lisa R -- Grau, Katrina R -- Gonzalez-Hernandez, Mariam B -- Iovine, Nicole M -- Wobus, Christiane E -- Vinje, Jan -- Tibbetts, Scott A -- Wallet, Shannon M -- Karst, Stephanie M -- R01 AI080611/AI/NIAID NIH HHS/ -- R21 AI103961/AI/NIAID NIH HHS/ -- T90 DE021990/DE/NIDCR NIH HHS/ -- T90 DE021990-02/DE/NIDCR NIH HHS/ -- New York, N.Y. -- Science. 2014 Nov 7;346(6210):755-9. doi: 10.1126/science.1257147.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, Emerging Pathogens Institute, College of Medicine, University of Florida, Gainesville, FL, USA. ; Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, USA. Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, USA. ; Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA. ; Department of Medicine, Division of Infectious Diseases, University of Florida, Gainesville, FL, USA. ; Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA. ; Department of Molecular Genetics and Microbiology, Emerging Pathogens Institute, College of Medicine, University of Florida, Gainesville, FL, USA. skarst@ufl.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25378626" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Bacterial Agents/pharmacology ; B-Lymphocytes/immunology/*virology ; Caliciviridae Infections/*immunology/microbiology/virology ; Cell Line ; Enterobacteriaceae/drug effects/*physiology ; Gastroenteritis/*immunology/microbiology/virology ; Genome, Viral/genetics/physiology ; Homeodomain Proteins/genetics ; Humans ; Intestines/immunology/*microbiology ; Mice ; Mice, Mutant Strains ; Norovirus/*physiology ; Peyer's Patches/immunology/virology ; *Virus Replication
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    RNA interference functions as an antiviral immunity mechanism in mammals (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-10-12
    Description: Diverse eukaryotic hosts produce virus-derived small interfering RNAs (siRNAs) to direct antiviral immunity by RNA interference (RNAi). However, it remains unknown whether the mammalian RNAi pathway has a natural antiviral function. Here, we show that infection of hamster cells and suckling mice by Nodamura virus (NoV), a mosquito-transmissible RNA virus, requires RNAi suppression by its B2 protein. Loss of B2 expression or its suppressor activity leads to abundant production of viral siRNAs and rapid clearance of the mutant viruses in mice. However, viral small RNAs detected during virulent infection by NoV do not have the properties of canonical siRNAs. These findings have parallels with the induction and suppression of antiviral RNAi by the related Flock house virus in fruit flies and nematodes and reveal a mammalian antiviral immunity mechanism mediated by RNAi.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3875315/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3875315/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Yang -- Lu, Jinfeng -- Han, Yanhong -- Fan, Xiaoxu -- Ding, Shou-Wei -- AI52447/AI/NIAID NIH HHS/ -- GM94396/GM/NIGMS NIH HHS/ -- R01 AI052447/AI/NIAID NIH HHS/ -- R01 GM094396/GM/NIGMS NIH HHS/ -- RC1 GM091896/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Oct 11;342(6155):231-4. doi: 10.1126/science.1241911.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology and Microbiology, University of California, Riverside, CA 92521, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24115437" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cricetinae ; Mice ; Nodaviridae/genetics/*pathogenicity ; RNA Interference/*immunology ; RNA Virus Infections/*immunology ; RNA, Small Interfering/*immunology ; RNA, Viral/genetics/*immunology ; Viral Nonstructural Proteins/genetics/*immunology
    Print ISSN: 0036-8075
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    Deciphering the glycosylome of dystroglycanopathies using haploid screens for lassa virus entry (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-23
    Description: Glycosylated alpha-dystroglycan (alpha-DG) serves as cellular entry receptor for multiple pathogens, and defects in its glycosylation cause hereditary Walker-Warburg syndrome (WWS). At least eight proteins are critical to glycosylate alpha-DG, but many genes mutated in WWS remain unknown. To identify modifiers of alpha-DG, we performed a haploid screen for Lassa virus entry, a hemorrhagic fever virus causing thousands of deaths annually that hijacks glycosylated alpha-DG to enter cells. In complementary screens, we profiled cells for absence of alpha-DG carbohydrate chains or biochemically related glycans. This revealed virus host factors and a suite of glycosylation units, including all known Walker-Warburg genes and five additional factors critical for the modification of alpha-DG. Our findings accentuate the complexity of this posttranslational feature and point out genes defective in dystroglycanopathies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3919138/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3919138/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jae, Lucas T -- Raaben, Matthijs -- Riemersma, Moniek -- van Beusekom, Ellen -- Blomen, Vincent A -- Velds, Arno -- Kerkhoven, Ron M -- Carette, Jan E -- Topaloglu, Haluk -- Meinecke, Peter -- Wessels, Marja W -- Lefeber, Dirk J -- Whelan, Sean P -- van Bokhoven, Hans -- Brummelkamp, Thijn R -- AI057159/AI/NIAID NIH HHS/ -- AI081842/AI/NIAID NIH HHS/ -- R01 AI081842/AI/NIAID NIH HHS/ -- U54 AI057159/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2013 Apr 26;340(6131):479-83. doi: 10.1126/science.1233675. Epub 2013 Mar 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23519211" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cell Line ; Dystroglycans/*metabolism ; Female ; Glycosylation ; Haploidy ; Host-Pathogen Interactions/*genetics ; Humans ; Infant ; Lassa Fever/*genetics/virology ; Lassa virus/*physiology ; Male ; Membrane Proteins/*genetics ; Molecular Sequence Data ; Mutation ; Pedigree ; Proteome/*metabolism ; *Virus Internalization ; Walker-Warburg Syndrome/*genetics
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    ATAXIN-2 activates PERIOD translation to sustain circadian rhythms in Drosophila (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-05-21
    Description: Evidence for transcriptional feedback in circadian timekeeping is abundant, yet little is known about the mechanisms underlying translational control. We found that ATAXIN-2 (ATX2), an RNA-associated protein involved in neurodegenerative disease, is a translational activator of the rate-limiting clock component PERIOD (PER) in Drosophila. ATX2 specifically interacted with TWENTY-FOUR (TYF), an activator of PER translation. RNA interference-mediated depletion of Atx2 or the expression of a mutant ATX2 protein that does not associate with polyadenylate-binding protein (PABP) suppressed behavioral rhythms and decreased abundance of PER. Although ATX2 can repress translation, depletion of Atx2 from Drosophila S2 cells inhibited translational activation by RNA-tethered TYF and disrupted the association between TYF and PABP. Thus, ATX2 coordinates an active translation complex important for PER expression and circadian rhythms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lim, Chunghun -- Allada, Ravi -- R01NS059042/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2013 May 17;340(6134):875-9. doi: 10.1126/science.1234785.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Northwestern University, Evanston, IL 60208, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23687047" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ataxins ; Cell Line ; *Circadian Rhythm ; Drosophila Proteins/*biosynthesis/genetics/metabolism ; Drosophila melanogaster/metabolism/*physiology ; Mutation ; Nerve Tissue Proteins/genetics/*metabolism ; Period Circadian Proteins/*biosynthesis ; Poly(A)-Binding Proteins/metabolism ; Protein Biosynthesis ; RNA Interference
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    A long noncoding RNA mediates both activation and repression of immune response genes (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-08-03
    Description: An inducible program of inflammatory gene expression is central to antimicrobial defenses. This response is controlled by a collaboration involving signal-dependent activation of transcription factors, transcriptional co-regulators, and chromatin-modifying factors. We have identified a long noncoding RNA (lncRNA) that acts as a key regulator of this inflammatory response. Pattern recognition receptors such as the Toll-like receptors induce the expression of numerous lncRNAs. One of these, lincRNA-Cox2, mediates both the activation and repression of distinct classes of immune genes. Transcriptional repression of target genes is dependent on interactions of lincRNA-Cox2 with heterogeneous nuclear ribonucleoprotein A/B and A2/B1. Collectively, these studies unveil a central role of lincRNA-Cox2 as a broad-acting regulatory component of the circuit that controls the inflammatory response.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4376668/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4376668/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carpenter, Susan -- Aiello, Daniel -- Atianand, Maninjay K -- Ricci, Emiliano P -- Gandhi, Pallavi -- Hall, Lisa L -- Byron, Meg -- Monks, Brian -- Henry-Bezy, Meabh -- Lawrence, Jeanne B -- O'Neill, Luke A J -- Moore, Melissa J -- Caffrey, Daniel R -- Fitzgerald, Katherine A -- AI067497/AI/NIAID NIH HHS/ -- GM053234/GM/NIGMS NIH HHS/ -- R01 AI067497/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2013 Aug 16;341(6147):789-92. doi: 10.1126/science.1240925. Epub 2013 Aug 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23907535" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Nucleus/metabolism ; Cyclooxygenase 2/genetics ; Cytokines/genetics/metabolism ; Cytosol/metabolism ; *Gene Expression Regulation ; Heterogeneous-Nuclear Ribonucleoproteins/metabolism ; Immunity, Innate/*genetics ; Inflammation/*genetics ; Macrophage Activation ; Macrophages/*immunology/*metabolism ; Mice ; Models, Immunological ; RNA Interference ; RNA, Long Noncoding/*genetics/metabolism ; Toll-Like Receptors/genetics/metabolism ; Transcription Factors/genetics/metabolism ; Transcription, Genetic ; Transcriptional Activation
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    2013 Runners-Up. Human cloning at last (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-12-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2013 Dec 20;342(6165):1436. doi: 10.1126/science.342.6165.1436-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24357287" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Separation ; Cloning, Organism/*methods ; Female ; Humans ; *Induced Pluripotent Stem Cells ; Nuclear Transfer Techniques ; Pregnancy ; *Research Embryo Creation ; Surrogate Mothers
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    Marine conservation. As threats to corals grow, hints of resilience emerge (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schmidt, Charles -- New York, N.Y. -- Science. 2013 Mar 29;339(6127):1517-9. doi: 10.1126/science.339.6127.1517.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23539577" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; Animals ; Anthozoa/genetics/*growth & development ; *Conservation of Natural Resources ; Ecosystem ; *Heat-Shock Response/genetics
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    Interferon-epsilon protects the female reproductive tract from viral and bacterial infection (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-02
    Description: The innate immune system senses pathogens through pattern-recognition receptors (PRRs) that signal to induce effector cytokines, such as type I interferons (IFNs). We characterized IFN-epsilon as a type I IFN because it signaled via the Ifnar1 and Ifnar2 receptors to induce IFN-regulated genes. In contrast to other type I IFNs, IFN-epsilon was not induced by known PRR pathways; instead, IFN-epsilon was constitutively expressed by epithelial cells of the female reproductive tract (FRT) and was hormonally regulated. Ifn-epsilon-deficient mice had increased susceptibility to infection of the FRT by the common sexually transmitted infections (STIs) herpes simplex virus 2 and Chlamydia muridarum. Thus, IFN-epsilon is a potent antipathogen and immunoregulatory cytokine that may be important in combating STIs that represent a major global health and socioeconomic burden.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3617553/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3617553/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fung, Ka Yee -- Mangan, Niamh E -- Cumming, Helen -- Horvat, Jay C -- Mayall, Jemma R -- Stifter, Sebastian A -- De Weerd, Nicole -- Roisman, Laila C -- Rossjohn, Jamie -- Robertson, Sarah A -- Schjenken, John E -- Parker, Belinda -- Gargett, Caroline E -- Nguyen, Hong P T -- Carr, Daniel J -- Hansbro, Philip M -- Hertzog, Paul J -- R01 AI053108/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2013 Mar 1;339(6123):1088-92. doi: 10.1126/science.1233321.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Innate Immunity and Infectious Diseases, Monash Institute of Medical Research, Monash University, Clayton, Victoria, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23449591" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Chlamydia Infections/genetics/*immunology ; *Chlamydia muridarum ; Estrogens/administration & dosage/immunology ; Female ; HEK293 Cells ; Herpes Genitalis/genetics/*immunology ; *Herpesvirus 2, Human ; Humans ; Interferons/genetics/*immunology ; Ligands ; Mice ; Mice, Inbred C57BL ; Oligodeoxyribonucleotides/immunology ; Poly I-C/immunology ; Poly dA-dT/immunology ; Toll-Like Receptors/*immunology ; Uterus/immunology ; Vagina/*immunology/microbiology/virology
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    Multiple fitness peaks on the adaptive landscape drive adaptive radiation in the wild (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-01-12
    Description: The relationship between phenotype and fitness can be visualized as a rugged landscape. Multiple fitness peaks on this landscape are predicted to drive early bursts of niche diversification during adaptive radiation. We measured the adaptive landscape in a nascent adaptive radiation of Cyprinodon pupfishes endemic to San Salvador Island, Bahamas, and found multiple coexisting high-fitness regions driven by increased competition at high densities, supporting the early burst model. Hybrids resembling the generalist phenotype were isolated on a local fitness peak separated by a valley from a higher-fitness region corresponding to trophic specialization. This complex landscape could explain both the rarity of specialists across many similar environments due to stabilizing selection on generalists and the rapid morphological diversification rate of specialists due to their higher fitness.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martin, Christopher H -- Wainwright, Peter C -- New York, N.Y. -- Science. 2013 Jan 11;339(6116):208-11. doi: 10.1126/science.1227710.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Evolution and Ecology and Center for Population Biology, University of California, One Shields Avenue, Davis, CA, USA. chmartin@ucdavis.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23307743" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological/*genetics ; Animals ; Bahamas ; *Biological Evolution ; Crosses, Genetic ; Ecosystem ; Environment ; Female ; *Genetic Fitness ; Genetic Speciation ; Hybridization, Genetic ; Killifishes/*genetics/*physiology ; Lakes ; Male ; Models, Biological ; Phenotype ; Selection, Genetic
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    Archaeology. Archaeologists say the 'Anthropocene' is here--but it began long ago (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-04-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, Michael -- New York, N.Y. -- Science. 2013 Apr 19;340(6130):261-2. doi: 10.1126/science.340.6130.261.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23599452" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture/*history ; Archaeology/*trends ; Ecosystem ; *Geological Phenomena ; History, Ancient ; Humans
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    Cyclic GMP-AMP synthase is an innate immune sensor of HIV and other retroviruses (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-08-10
    Description: Retroviruses, including HIV, can activate innate immune responses, but the host sensors for retroviruses are largely unknown. Here we show that HIV infection activates cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) synthase (cGAS) to produce cGAMP, which binds to and activates the adaptor protein STING to induce type I interferons and other cytokines. Inhibitors of HIV reverse transcriptase, but not integrase, abrogated interferon-beta induction by the virus, suggesting that the reverse-transcribed HIV DNA triggers the innate immune response. Knockout or knockdown of cGAS in mouse or human cell lines blocked cytokine induction by HIV, murine leukemia virus, and simian immunodeficiency virus. These results indicate that cGAS is an innate immune sensor of HIV and other retroviruses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3860819/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3860819/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gao, Daxing -- Wu, Jiaxi -- Wu, You-Tong -- Du, Fenghe -- Aroh, Chukwuemika -- Yan, Nan -- Sun, Lijun -- Chen, Zhijian J -- R01 AI093967/AI/NIAID NIH HHS/ -- R01 AI098569/AI/NIAID NIH HHS/ -- R01-AI093967/AI/NIAID NIH HHS/ -- R01-AI098569/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Aug 23;341(6148):903-6. doi: 10.1126/science.1240933. Epub 2013 Aug 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23929945" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Gene Knockdown Techniques ; HEK293 Cells ; HIV/drug effects/enzymology/*immunology ; HIV Infections/enzymology/*immunology/virology ; HIV Reverse Transcriptase/antagonists & inhibitors ; Humans ; *Immunity, Innate ; Interferon-beta/biosynthesis ; Membrane Proteins/metabolism ; Mice ; Nucleotidyltransferases/genetics/*metabolism ; Retroviridae/immunology ; Retroviridae Infections/enzymology/immunology/virology ; Reverse Transcriptase Inhibitors/pharmacology
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    Antiviral RNA interference in mammalian cells (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-10-12
    Description: In antiviral RNA interference (RNAi), the DICER enzyme processes virus-derived double-stranded RNA (dsRNA) into small interfering RNAs (siRNAs) that guide ARGONAUTE proteins to silence complementary viral RNA. As a counterdefense, viruses deploy viral suppressors of RNAi (VSRs). Well-established in plants and invertebrates, the existence of antiviral RNAi remains unknown in mammals. Here, we show that undifferentiated mouse cells infected with encephalomyocarditis virus (EMCV) or Nodamura virus (NoV) accumulate ~22-nucleotide RNAs with all the signature features of siRNAs. These derive from viral dsRNA replication intermediates, incorporate into AGO2, are eliminated in Dicer knockout cells, and decrease in abundance upon cell differentiation. Furthermore, genetically ablating a NoV-encoded VSR that antagonizes DICER during authentic infections reduces NoV accumulation, which is rescued in RNAi-deficient mouse cells. We conclude that antiviral RNAi operates in mammalian cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3853215/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3853215/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maillard, P V -- Ciaudo, C -- Marchais, A -- Li, Y -- Jay, F -- Ding, S W -- Voinnet, Olivier -- R01 AI052447/AI/NIAID NIH HHS/ -- R01 GM094396/GM/NIGMS NIH HHS/ -- RC1 GM091896/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Oct 11;342(6155):235-8. doi: 10.1126/science.1241930.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Swiss Federal Institute of Technology Zurich (ETH-Z), Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24115438" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Argonaute Proteins/genetics/metabolism ; Base Sequence ; Cardiovirus Infections/*immunology ; Cell Line ; DEAD-box RNA Helicases/genetics/metabolism ; Encephalomyocarditis virus/genetics/*physiology ; Gene Knockout Techniques ; Mice ; Molecular Sequence Data ; Nodaviridae/genetics/*physiology ; RNA Interference/*immunology ; RNA Virus Infections/*immunology ; RNA, Double-Stranded/genetics/*immunology/metabolism ; RNA, Small Interfering/genetics/*immunology/metabolism ; RNA, Viral/genetics/*immunology/metabolism ; Ribonuclease III/genetics/metabolism ; Virus Replication
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    The human THAP9 gene encodes an active P-element DNA transposase (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-01-26
    Description: The human genome contains ~50 genes that were derived from transposable elements or transposons, and many are now integral components of cellular gene expression programs. The human THAP9 gene is related to the Drosophila P-element transposase. Here, we show that human THAP9 can mobilize Drosophila P-elements in both Drosophila and human cells. Chimeric proteins formed between the Drosophila P-element transposase N-terminal THAP DNA binding domain and the C-terminal regions of human THAP9 can also mobilize Drosophila P elements. Our results indicate that human THAP9 is an active DNA transposase that, although "domesticated," still retains the catalytic activity to mobilize P transposable elements across species.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3779457/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3779457/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Majumdar, Sharmistha -- Singh, Anita -- Rio, Donald C -- R01 GM048862/GM/NIGMS NIH HHS/ -- R01 GM094890/GM/NIGMS NIH HHS/ -- R01 GM097352/GM/NIGMS NIH HHS/ -- R01 GM104385/GM/NIGMS NIH HHS/ -- R01GM094890/GM/NIGMS NIH HHS/ -- R01GM104385/GM/NIGMS NIH HHS/ -- R01GM48862/GM/NIGMS NIH HHS/ -- R01GM61987/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Jan 25;339(6118):446-8. doi: 10.1126/science.1231789.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720-3204, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23349291" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; *DNA Transposable Elements ; Drosophila/genetics ; Genome, Human ; HEK293 Cells ; Humans ; Molecular Sequence Data ; Recombinant Fusion Proteins/metabolism ; Sequence Analysis, DNA ; Transfection ; Transposases/chemistry/*genetics/*metabolism
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    Can we name Earth's species before they go extinct? (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-01-26
    Description: Some people despair that most species will go extinct before they are discovered. However, such worries result from overestimates of how many species may exist, beliefs that the expertise to describe species is decreasing, and alarmist estimates of extinction rates. We argue that the number of species on Earth today is 5 +/- 3 million, of which 1.5 million are named. New databases show that there are more taxonomists describing species than ever before, and their number is increasing faster than the rate of species description. Conservation efforts and species survival in secondary habitats are at least delaying extinctions. Extinction rates are, however, poorly quantified, ranging from 0.01 to 1% (at most 5%) per decade. We propose practical actions to improve taxonomic productivity and associated understanding and conservation of biodiversity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Costello, Mark J -- May, Robert M -- Stork, Nigel E -- New York, N.Y. -- Science. 2013 Jan 25;339(6118):413-6. doi: 10.1126/science.1230318.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Leigh Marine Laboratory, University of Auckland, Post Office Box 349, Warkworth, New Zealand. m.costello@auckland.ac.nz〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23349283" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Classification ; Conservation of Natural Resources ; Databases, Factual ; Ecosystem ; Endangered Species ; *Extinction, Biological ; *Terminology as Topic
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    Tetrahydrobiopterin biosynthesis as an off-target of sulfa drugs (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-05-25
    Description: The introduction of sulfa drugs for the chemotherapy of bacterial infections in 1935 revolutionized medicine. Although their mechanism of action is understood, the molecular bases for most of their side effects remain obscure. Here, we report that sulfamethoxazole and other sulfa drugs interfere with tetrahydrobiopterin biosynthesis through inhibition of sepiapterin reductase. Crystal structures of sepiapterin reductase with bound sulfa drugs reveal how structurally diverse sulfa drugs achieve specific inhibition of the enzyme. The effect of sulfa drugs on tetrahydrobiopterin-dependent neurotransmitter biosynthesis in cell-based assays provides a rationale for some of their central nervous system-related side effects, particularly in high-dose sulfamethoxazole therapy of Pneumocystis pneumonia. Our findings reveal an unexpected aspect of the pharmacology of sulfa drugs and might translate into their improved medical use.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haruki, Hirohito -- Pedersen, Miriam Gronlund -- Gorska, Katarzyna Irena -- Pojer, Florence -- Johnsson, Kai -- New York, N.Y. -- Science. 2013 May 24;340(6135):987-91. doi: 10.1126/science.1232972.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉EPFL, Institute of Chemical Sciences and Engineering, Institute of Bioengineering, National Centre of Competence in Research in Chemical Biology, 1015 Lausanne, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23704574" target="_blank"〉PubMed〈/a〉
    Keywords: 5-Hydroxytryptophan/biosynthesis ; Adult ; Alcohol Oxidoreductases/*antagonists & inhibitors/*chemistry ; Anti-Infective Agents/adverse effects/*pharmacology/therapeutic use ; Biopterin/*analogs & derivatives/biosynthesis ; Cell Line ; Central Nervous System/drug effects ; Crystallography, X-Ray ; Fibroblasts/drug effects/metabolism ; Humans ; Levodopa/biosynthesis ; NADP/chemistry ; Nausea/chemically induced ; Pneumonia, Pneumocystis/drug therapy ; Protein Conformation ; Structure-Activity Relationship ; Sulfamethoxazole/adverse effects/*pharmacology/therapeutic use ; Trimethoprim, Sulfamethoxazole Drug Combination/pharmacology/therapeutic use ; Vomiting/chemically induced
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    Phosphorylation of Dishevelled by protein kinase RIPK4 regulates Wnt signaling (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-02-02
    Description: Receptor-interacting protein kinase 4 (RIPK4) is required for epidermal differentiation and is mutated in Bartsocas-Papas syndrome. RIPK4 binds to protein kinase C, but its signaling mechanisms are largely unknown. Ectopic RIPK4, but not catalytically inactive or Bartsocas-Papas RIPK4 mutants, induced accumulation of cytosolic beta-catenin and a transcriptional program similar to that caused by Wnt3a. In Xenopus embryos, Ripk4 synergized with coexpressed Xwnt8, whereas Ripk4 morpholinos or catalytic inactive Ripk4 antagonized Wnt signaling. RIPK4 interacted constitutively with the adaptor protein DVL2 and, after Wnt3a stimulation, with the co-receptor LRP6. Phosphorylation of DVL2 by RIPK4 favored canonical Wnt signaling. Wnt-dependent growth of xenografted human tumor cells was suppressed by RIPK4 knockdown, suggesting that RIPK4 overexpression may contribute to the growth of certain tumor types.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4094295/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4094295/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, XiaoDong -- McGann, James C -- Liu, Bob Y -- Hannoush, Rami N -- Lill, Jennie R -- Pham, Victoria -- Newton, Kim -- Kakunda, Michael -- Liu, Jinfeng -- Yu, Christine -- Hymowitz, Sarah G -- Hongo, Jo-Anne -- Wynshaw-Boris, Anthony -- Polakis, Paul -- Harland, Richard M -- Dixit, Vishva M -- R01 GM042341/GM/NIGMS NIH HHS/ -- R01 NS073159/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2013 Mar 22;339(6126):1441-5. doi: 10.1126/science.1232253. Epub 2013 Jan 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiological Chemistry, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23371553" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/*metabolism ; Animals ; Cell Line ; Cell Line, Tumor ; Cytosol/metabolism ; Female ; Gene Knockdown Techniques ; HEK293 Cells ; Humans ; Low Density Lipoprotein Receptor-Related Protein-6/metabolism ; Neoplasm Transplantation ; Neoplasms/metabolism ; Ovarian Neoplasms/metabolism ; Phosphoproteins/*metabolism ; Phosphorylation ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; Transplantation, Heterologous ; *Wnt Signaling Pathway ; Wnt3A Protein/metabolism ; Xenopus Proteins/genetics/*metabolism ; Xenopus laevis/embryology/metabolism ; beta Catenin/metabolism
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    Functional lysine modification by an intrinsically reactive primary glycolytic metabolite (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-08-03
    Description: The posttranslational modification of proteins and their regulation by metabolites represent conserved mechanisms in biology. At the confluence of these two processes, we report that the primary glycolytic intermediate 1,3-bisphosphoglycerate (1,3-BPG) reacts with select lysine residues in proteins to form 3-phosphoglyceryl-lysine (pgK). This reaction, which does not require enzyme catalysis, but rather exploits the electrophilicity of 1,3-BPG, was found by proteomic profiling to be enriched on diverse classes of proteins and prominently in or around the active sites of glycolytic enzymes. pgK modifications inhibit glycolytic enzymes and, in cells exposed to high glucose, accumulate on these enzymes to create a potential feedback mechanism that contributes to the buildup and redirection of glycolytic intermediates to alternate biosynthetic pathways.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4005992/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4005992/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moellering, Raymond E -- Cravatt, Benjamin F -- CA087660/CA/NCI NIH HHS/ -- R37 CA087660/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2013 Aug 2;341(6145):549-53. doi: 10.1126/science.1238327.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Skaggs Institute for Chemical Biology and Department of Chemical Physiology, The Scripps Research Institute, La Jolla, CA 92037, USA. rmoeller@scripps.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23908237" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Biomarkers, Tumor/chemistry/metabolism ; Catalysis ; Cell Line ; DNA-Binding Proteins/chemistry/metabolism ; Diphosphoglyceric Acids/*metabolism ; Glucose/metabolism ; Glyceraldehyde-3-Phosphate Dehydrogenase (Phosphorylating)/chemistry/metabolism ; Glycerophosphates/*metabolism ; *Glycolysis ; Humans ; Lysine/*analogs & derivatives/*metabolism ; Mice ; Molecular Sequence Data ; Phosphopyruvate Hydratase/chemistry/metabolism ; *Protein Processing, Post-Translational ; Proteins/chemistry/*metabolism ; Tumor Suppressor Proteins/chemistry/metabolism
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    The Xist lncRNA exploits three-dimensional genome architecture to spread across the X chromosome (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-07-06
    Description: Many large noncoding RNAs (lncRNAs) regulate chromatin, but the mechanisms by which they localize to genomic targets remain unexplored. We investigated the localization mechanisms of the Xist lncRNA during X-chromosome inactivation (XCI), a paradigm of lncRNA-mediated chromatin regulation. During the maintenance of XCI, Xist binds broadly across the X chromosome. During initiation of XCI, Xist initially transfers to distal regions across the X chromosome that are not defined by specific sequences. Instead, Xist identifies these regions by exploiting the three-dimensional conformation of the X chromosome. Xist requires its silencing domain to spread across actively transcribed regions and thereby access the entire chromosome. These findings suggest a model in which Xist coats the X chromosome by searching in three dimensions, modifying chromosome structure, and spreading to newly accessible locations.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3778663/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3778663/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Engreitz, Jesse M -- Pandya-Jones, Amy -- McDonel, Patrick -- Shishkin, Alexander -- Sirokman, Klara -- Surka, Christine -- Kadri, Sabah -- Xing, Jeffrey -- Goren, Alon -- Lander, Eric S -- Plath, Kathrin -- Guttman, Mitchell -- 1F32GM103139-01/GM/NIGMS NIH HHS/ -- DP5 OD012190/OD/NIH HHS/ -- DP5OD012190/OD/NIH HHS/ -- P01 GM099134/GM/NIGMS NIH HHS/ -- P01GM099134/GM/NIGMS NIH HHS/ -- P50HG006193/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2013 Aug 16;341(6147):1237973. doi: 10.1126/science.1237973. Epub 2013 Jul 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23828888" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cell Line ; Chromatin/chemistry/metabolism ; Female ; *Genome ; Male ; Mice ; Models, Genetic ; RNA, Long Noncoding/chemistry/*metabolism ; Transcription, Genetic ; X Chromosome/*metabolism/ultrastructure ; *X Chromosome Inactivation
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    H5N1 hybrid viruses bearing 2009/H1N1 virus genes transmit in guinea pigs by respiratory droplet (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-05-04
    Description: In the past, avian influenza viruses have crossed species barriers to trigger human pandemics by reassorting with mammal-infective viruses in intermediate livestock hosts. H5N1 viruses are able to infect pigs, and some of them have affinity for the mammalian type alpha-2,6-linked sialic acid airway receptor. Using reverse genetics, we systematically created 127 reassortant viruses between a duck isolate of H5N1, specifically retaining its hemagglutinin (HA) gene throughout, and a highly transmissible, human-infective H1N1 virus. We tested the virulence of the reassortants in mice as a correlate for virulence in humans and tested transmissibility in guinea pigs, which have both avian and mammalian types of airway receptor. Transmission studies showed that the H1N1 virus genes encoding acidic polymerase and nonstructural protein made the H5N1 virus transmissible by respiratory droplet between guinea pigs without killing them. Further experiments implicated other H1N1 genes in the enhancement of mammal-to-mammal transmission, including those that encode nucleoprotein, neuraminidase, and matrix, as well as mutations in H5 HA that improve affinity for humanlike airway receptors. Hence, avian H5N1 subtype viruses do have the potential to acquire mammalian transmissibility by reassortment in current agricultural scenarios.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Ying -- Zhang, Qianyi -- Kong, Huihui -- Jiang, Yongping -- Gao, Yuwei -- Deng, Guohua -- Shi, Jianzhong -- Tian, Guobin -- Liu, Liling -- Liu, Jinxiong -- Guan, Yuntao -- Bu, Zhigao -- Chen, Hualan -- New York, N.Y. -- Science. 2013 Jun 21;340(6139):1459-63. doi: 10.1126/science.1229455. Epub 2013 May 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23641061" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Brain/virology ; Cell Line ; Ferrets ; Genes, Viral ; Guinea Pigs ; Hemagglutinin Glycoproteins, Influenza Virus/chemistry/genetics ; Humans ; Influenza A Virus, H1N1 Subtype/*genetics/pathogenicity ; Influenza A Virus, H5N1 Subtype/*genetics/pathogenicity ; Influenza, Human/transmission/virology ; Mice ; Mice, Inbred BALB C ; Molecular Sequence Data ; Mutation ; Orthomyxoviridae Infections/*transmission/*virology ; Reassortant Viruses/*genetics/*pathogenicity ; Receptors, Cell Surface/metabolism ; Receptors, Virus/metabolism ; Respiratory System/*virology ; Reverse Genetics ; Ribonucleoproteins/metabolism ; Viral Proteins/genetics/metabolism ; Virus Replication
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    RTEL1 is a replisome-associated helicase that promotes telomere and genome-wide replication (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-10-12
    Description: Regulator of telomere length 1 (RTEL1) is an essential DNA helicase that disassembles telomere loops (T loops) and suppresses telomere fragility to maintain the integrity of chromosome ends. We established that RTEL1 also associates with the replisome through binding to proliferating cell nuclear antigen (PCNA). Mouse cells disrupted for the RTEL1-PCNA interaction (PIP mutant) exhibited accelerated senescence, replication fork instability, reduced replication fork extension rates, and increased origin usage. Although T-loop disassembly at telomeres was unaffected in the mutant cells, telomere replication was compromised, leading to fragile sites at telomeres. RTEL1-PIP mutant mice were viable, but loss of the RTEL1-PCNA interaction accelerated the onset of tumorigenesis in p53-deficient mice. We propose that RTEL1 plays a critical role in both telomere and genome-wide replication, which is crucial for genetic stability and tumor avoidance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vannier, Jean-Baptiste -- Sandhu, Sumit -- Petalcorin, Mark I R -- Wu, Xiaoli -- Nabi, Zinnatun -- Ding, Hao -- Boulton, Simon J -- Canadian Institutes of Health Research/Canada -- Cancer Research UK/United Kingdom -- New York, N.Y. -- Science. 2013 Oct 11;342(6155):239-42. doi: 10.1126/science.1241779.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉DNA Damage Response Laboratory, London Research Institute, Cancer Research UK, Clare Hall, South Mimms, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24115439" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Transformation, Neoplastic/genetics/*metabolism ; DNA Helicases/genetics/*metabolism ; *DNA Replication ; Genome/*genetics ; Mice ; Mice, Mutant Strains ; Proliferating Cell Nuclear Antigen/*metabolism ; Telomere/*genetics ; Tumor Suppressor Protein p53/genetics
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    Retrospective. Carl R. Woese (1928-2012) (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-02-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldenfeld, Nigel -- Pace, Norman R -- New York, N.Y. -- Science. 2013 Feb 8;339(6120):661. doi: 10.1126/science.1235219.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genomic Biology and Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. nigel@illinois.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23393257" target="_blank"〉PubMed〈/a〉
    Keywords: *Archaea/classification/genetics ; Biological Evolution ; Ecosystem ; History, 20th Century ; History, 21st Century ; Microbiology/history ; *Phylogeny ; United States
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    Actin-propelled invasive membrane protrusions promote fusogenic protein engagement during cell-cell fusion (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-03-09
    Description: Cell-cell fusion is critical for the conception, development, and physiology of multicellular organisms. Although cellular fusogenic proteins and the actin cytoskeleton are implicated in cell-cell fusion, it remains unclear whether and how they coordinate to promote plasma membrane fusion. We reconstituted a high-efficiency, inducible cell fusion culture system in the normally nonfusing Drosophila S2R+ cells. Both fusogenic proteins and actin cytoskeletal rearrangements were necessary for cell fusion, and in combination they were sufficient to impart fusion competence. Localized actin polymerization triggered by specific cell-cell or cell-matrix adhesion molecules propelled invasive cell membrane protrusions, which in turn promoted fusogenic protein engagement and plasma membrane fusion. This de novo cell fusion culture system reveals a general role for actin-propelled invasive membrane protrusions in driving fusogenic protein engagement during cell-cell fusion.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3631436/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3631436/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shilagardi, Khurts -- Li, Shuo -- Luo, Fengbao -- Marikar, Faiz -- Duan, Rui -- Jin, Peng -- Kim, Ji Hoon -- Murnen, Katherine -- Chen, Elizabeth H -- R01 GM098816/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Apr 19;340(6130):359-63. doi: 10.1126/science.1234781. Epub 2013 Mar 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23470732" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/*metabolism ; Animals ; Caenorhabditis elegans Proteins/genetics/*metabolism ; Cell Adhesion Molecules/genetics/*metabolism ; *Cell Communication ; Cell Culture Techniques ; *Cell Fusion ; Cell Line ; Cell Surface Extensions/metabolism/physiology ; Drosophila Proteins/genetics/metabolism ; Drosophila melanogaster/cytology ; Immunoglobulins/genetics/metabolism ; Membrane Glycoproteins/genetics/*metabolism ; Membrane Proteins/genetics/metabolism ; Muscle Proteins/genetics/metabolism
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    mTORC1 phosphorylation sites encode their sensitivity to starvation and rapamycin (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-07-28
    Description: The mechanistic target of rapamycin (mTOR) complex 1 (mTORC1) protein kinase promotes growth and is the target of rapamycin, a clinically useful drug that also prolongs life span in model organisms. A persistent mystery is why the phosphorylation of many bona fide mTORC1 substrates is resistant to rapamycin. We find that the in vitro kinase activity of mTORC1 toward peptides encompassing established phosphorylation sites varies widely and correlates strongly with the resistance of the sites to rapamycin, as well as to nutrient and growth factor starvation within cells. Slight modifications of the sites were sufficient to alter mTORC1 activity toward them in vitro and to cause concomitant changes within cells in their sensitivity to rapamycin and starvation. Thus, the intrinsic capacity of a phosphorylation site to serve as an mTORC1 substrate, a property we call substrate quality, is a major determinant of its sensitivity to modulators of the pathway. Our results reveal a mechanism through which mTORC1 effectors can respond differentially to the same signals.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3771538/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3771538/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kang, Seong A -- Pacold, Michael E -- Cervantes, Christopher L -- Lim, Daniel -- Lou, Hua Jane -- Ottina, Kathleen -- Gray, Nathanael S -- Turk, Benjamin E -- Yaffe, Michael B -- Sabatini, David M -- AI047389/AI/NIAID NIH HHS/ -- CA103866/CA/NCI NIH HHS/ -- CA112967/CA/NCI NIH HHS/ -- ES015339/ES/NIEHS NIH HHS/ -- GM59281/GM/NIGMS NIH HHS/ -- P30 CA014051/CA/NCI NIH HHS/ -- R01 CA103866/CA/NCI NIH HHS/ -- R01 CA129105/CA/NCI NIH HHS/ -- R37 AI047389/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Jul 26;341(6144):1236566. doi: 10.1126/science.1236566.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Nine Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23888043" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acids/metabolism ; Animals ; Cell Line ; Culture Media ; Humans ; Mice ; Multiprotein Complexes ; Naphthyridines/pharmacology ; Peptides/chemistry/*metabolism ; Phosphorylation ; Proteins/antagonists & inhibitors/*chemistry/*metabolism ; Sirolimus/*pharmacology ; TOR Serine-Threonine Kinases/antagonists & inhibitors/*chemistry/*metabolism
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    Cell biology. Does cloning produce better embryonic stem cells? (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-06-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gura, Trisha -- New York, N.Y. -- Science. 2013 Jun 21;340(6139):1390. doi: 10.1126/science.340.6139.1390.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23788774" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; *Cloning, Organism ; DNA Methylation ; *Embryonic Stem Cells/physiology ; Humans ; Induced Pluripotent Stem Cells/physiology ; Nuclear Transfer Techniques ; *Stem Cell Research
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    The placental mammal ancestor and the post-K-Pg radiation of placentals (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-02-09
    Description: To discover interordinal relationships of living and fossil placental mammals and the time of origin of placentals relative to the Cretaceous-Paleogene (K-Pg) boundary, we scored 4541 phenomic characters de novo for 86 fossil and living species. Combining these data with molecular sequences, we obtained a phylogenetic tree that, when calibrated with fossils, shows that crown clade Placentalia and placental orders originated after the K-Pg boundary. Many nodes discovered using molecular data are upheld, but phenomic signals overturn molecular signals to show Sundatheria (Dermoptera + Scandentia) as the sister taxon of Primates, a close link between Proboscidea (elephants) and Sirenia (sea cows), and the monophyly of echolocating Chiroptera (bats). Our tree suggests that Placentalia first split into Xenarthra and Epitheria; extinct New World species are the oldest members of Afrotheria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Leary, Maureen A -- Bloch, Jonathan I -- Flynn, John J -- Gaudin, Timothy J -- Giallombardo, Andres -- Giannini, Norberto P -- Goldberg, Suzann L -- Kraatz, Brian P -- Luo, Zhe-Xi -- Meng, Jin -- Ni, Xijun -- Novacek, Michael J -- Perini, Fernando A -- Randall, Zachary S -- Rougier, Guillermo W -- Sargis, Eric J -- Silcox, Mary T -- Simmons, Nancy B -- Spaulding, Michelle -- Velazco, Paul M -- Weksler, Marcelo -- Wible, John R -- Cirranello, Andrea L -- New York, N.Y. -- Science. 2013 Feb 8;339(6120):662-7. doi: 10.1126/science.1229237.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomical Sciences, School of Medicine, HSC T-8 (040), Stony Brook University, Stony Brook, NY 11794-8081, USA. maureen.oleary@stonybrook.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23393258" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Biological Evolution ; Dentition ; Ecosystem ; Extinction, Biological ; Female ; *Fossils ; *Mammals/anatomy & histology/classification/genetics ; Paleodontology ; *Phylogeny ; Phylogeography ; Placenta ; Pregnancy ; Sequence Alignment ; Time ; Xenarthra/anatomy & histology/classification/genetics
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    Nuclear PTEN controls DNA repair and sensitivity to genotoxic stress (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-07-28
    Description: Loss of function of the phosphatase and tensin homolog deleted on chromosome 10 (PTEN) tumor suppressor gene is associated with many human cancers. In the cytoplasm, PTEN antagonizes the phosphatidylinositol 3-kinase (PI3K) signaling pathway. PTEN also accumulates in the nucleus, where its function remains poorly understood. We demonstrate that SUMOylation (SUMO, small ubiquitin-like modifier) of PTEN controls its nuclear localization. In cells exposed to genotoxic stress, SUMO-PTEN was rapidly excluded from the nucleus dependent on the protein kinase ataxia telangiectasia mutated (ATM). Cells lacking nuclear PTEN were hypersensitive to DNA damage, whereas PTEN-deficient cells were susceptible to killing by a combination of genotoxic stress and a small-molecule PI3K inhibitor both in vitro and in vivo. Our findings may have implications for individualized therapy for patients with PTEN-deficient tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bassi, C -- Ho, J -- Srikumar, T -- Dowling, R J O -- Gorrini, C -- Miller, S J -- Mak, T W -- Neel, B G -- Raught, B -- Stambolic, V -- R37 CA49152/CA/NCI NIH HHS/ -- Canadian Institutes of Health Research/Canada -- New York, N.Y. -- Science. 2013 Jul 26;341(6144):395-9. doi: 10.1126/science.1236188.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 2M9, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23888040" target="_blank"〉PubMed〈/a〉
    Keywords: Active Transport, Cell Nucleus ; Aminopyridines/pharmacology ; Animals ; Antineoplastic Agents/pharmacology ; Ataxia Telangiectasia Mutated Proteins ; Cell Cycle Proteins/metabolism ; Cell Line ; Cell Line, Tumor ; Cell Nucleus/*enzymology/metabolism ; Cisplatin/pharmacology ; DNA Breaks, Double-Stranded ; *DNA Damage ; *DNA Repair ; DNA-Binding Proteins/metabolism ; Doxorubicin/pharmacology ; Enzyme Inhibitors/pharmacology ; Female ; Humans ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Morpholines/pharmacology ; Neoplasm Transplantation ; PTEN Phosphohydrolase/genetics/*metabolism ; Phosphatidylinositol 3-Kinase/antagonists & inhibitors ; Phosphorylation ; Protein-Serine-Threonine Kinases/metabolism ; Sumoylation ; Transplantation, Heterologous ; Tumor Suppressor Proteins/metabolism
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    Biomedicine. Review of cloning paper prompts questions (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-06-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin-Frankel, Jennifer -- Vogel, Gretchen -- New York, N.Y. -- Science. 2013 May 31;340(6136):1026-7. doi: 10.1126/science.340.6136.1026.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23723209" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Culture Techniques ; Cell Line ; *Cloning, Organism ; Embryonic Stem Cells/*cytology ; Humans ; Oregon ; Peer Review, Research/*standards ; Scientific Misconduct ; Skin/*cytology ; Software ; *Stem Cell Research
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    The consequence of tree pests and diseases for ecosystem services (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-11-16
    Description: Trees and forests provide a wide variety of ecosystem services in addition to timber, food, and other provisioning services. New approaches to pest and disease management are needed that take into account these multiple services and the different stakeholders they benefit, as well as the likelihood of greater threats in the future resulting from globalization and climate change. These considerations will affect priorities for both basic and applied research and how trade and phytosanitary regulations are formulated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boyd, I L -- Freer-Smith, P H -- Gilligan, C A -- Godfray, H C J -- New York, N.Y. -- Science. 2013 Nov 15;342(6160):1235773. doi: 10.1126/science.1235773.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉College Gate, University of St. Andrews, St. Andrews KY18 9LB, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24233727" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Climate Change ; Ecosystem ; Introduced Species ; Plant Diseases/*microbiology/*parasitology/prevention & control ; Trees/*microbiology/*parasitology
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    Xk-related protein 8 and CED-8 promote phosphatidylserine exposure in apoptotic cells (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-07-13
    Description: A classic feature of apoptotic cells is the cell-surface exposure of phosphatidylserine (PtdSer) as an "eat me" signal for engulfment. We show that the Xk-family protein Xkr8 mediates PtdSer exposure in response to apoptotic stimuli. Mouse Xkr8(-/-) cells or human cancer cells in which Xkr8 expression was repressed by hypermethylation failed to expose PtdSer during apoptosis and were inefficiently engulfed by phagocytes. Xkr8 was activated directly by caspases and required a caspase-3 cleavage site for its function. CED-8, the only Caenorhabditis elegans Xk-family homolog, also promoted apoptotic PtdSer exposure and cell-corpse engulfment. Thus, Xk-family proteins have evolutionarily conserved roles in promoting the phagocytosis of dying cells by altering the phospholipid distribution in the plasma membrane.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Suzuki, Jun -- Denning, Daniel P -- Imanishi, Eiichi -- Horvitz, H Robert -- Nagata, Shigekazu -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Jul 26;341(6144):403-6. doi: 10.1126/science.1236758. Epub 2013 Jul 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Yoshida-Konoe, Sakyo-ku, Kyoto, Kyoto 606-8501, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23845944" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Apoptosis ; Apoptosis Regulatory Proteins/chemistry/genetics/*metabolism ; Caenorhabditis elegans Proteins/*metabolism ; Calcium/metabolism ; Caspases/metabolism ; Cell Line ; Cell Line, Tumor ; Cell Membrane/*metabolism ; CpG Islands ; Humans ; Macrophages/physiology ; Membrane Proteins/chemistry/genetics/*metabolism ; Mice ; Mice, Knockout ; Molecular Sequence Data ; *Phagocytosis ; Phosphatidylserines/*metabolism ; Recombinant Fusion Proteins/metabolism
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    Cryptic variation in morphological evolution: HSP90 as a capacitor for loss of eyes in cavefish (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-12-18
    Description: In the process of morphological evolution, the extent to which cryptic, preexisting variation provides a substrate for natural selection has been controversial. We provide evidence that heat shock protein 90 (HSP90) phenotypically masks standing eye-size variation in surface populations of the cavefish Astyanax mexicanus. This variation is exposed by HSP90 inhibition and can be selected for, ultimately yielding a reduced-eye phenotype even in the presence of full HSP90 activity. Raising surface fish under conditions found in caves taxes the HSP90 system, unmasking the same phenotypic variation as does direct inhibition of HSP90. These results suggest that cryptic variation played a role in the evolution of eye loss in cavefish and provide the first evidence for HSP90 as a capacitor for morphological evolution in a natural setting.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4004346/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4004346/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rohner, Nicolas -- Jarosz, Dan F -- Kowalko, Johanna E -- Yoshizawa, Masato -- Jeffery, William R -- Borowsky, Richard L -- Lindquist, Susan -- Tabin, Clifford J -- R01 HD047360/HD/NICHD NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Dec 13;342(6164):1372-5. doi: 10.1126/science.1240276.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24337296" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Characidae/genetics/*growth & development ; Ecosystem ; *Evolution, Molecular ; Eye/*anatomy & histology ; Genetic Variation ; HSP90 Heat-Shock Proteins/antagonists & inhibitors/*genetics/metabolism ; Macrolides/pharmacology ; Organ Size ; Phenotype
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    Vaccine activation of the nutrient sensor GCN2 in dendritic cells enhances antigen presentation (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-12-07
    Description: The yellow fever vaccine YF-17D is one of the most successful vaccines ever developed in humans. Despite its efficacy and widespread use in more than 600 million people, the mechanisms by which it stimulates protective immunity remain poorly understood. Recent studies using systems biology approaches in humans have revealed that YF-17D-induced early expression of general control nonderepressible 2 kinase (GCN2) in the blood strongly correlates with the magnitude of the later CD8(+) T cell response. We demonstrate a key role for virus-induced GCN2 activation in programming dendritic cells to initiate autophagy and enhanced antigen presentation to both CD4(+) and CD8(+) T cells. These results reveal an unappreciated link between virus-induced integrated stress response in dendritic cells and the adaptive immune response.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4048998/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4048998/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ravindran, Rajesh -- Khan, Nooruddin -- Nakaya, Helder I -- Li, Shuzhao -- Loebbermann, Jens -- Maddur, Mohan S -- Park, Youngja -- Jones, Dean P -- Chappert, Pascal -- Davoust, Jean -- Weiss, David S -- Virgin, Herbert W -- Ron, David -- Pulendran, Bali -- 084812/Wellcome Trust/United Kingdom -- 084812/Z/08/Z/Wellcome Trust/United Kingdom -- N01 AI50019/AI/NIAID NIH HHS/ -- N01 AI50025/AI/NIAID NIH HHS/ -- P51 OD011132/OD/NIH HHS/ -- R37 AI048638/AI/NIAID NIH HHS/ -- R37 DK057665/DK/NIDDK NIH HHS/ -- R56 AI048638/AI/NIAID NIH HHS/ -- U19 AI057266/AI/NIAID NIH HHS/ -- U19 AI090023/AI/NIAID NIH HHS/ -- U54 AI057157/AI/NIAID NIH HHS/ -- U54 AI057160/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2014 Jan 17;343(6168):313-7. doi: 10.1126/science.1246829. Epub 2013 Dec 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Emory Vaccine Center, Yerkes National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA 30329, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24310610" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antigen Presentation ; CD4-Positive T-Lymphocytes/immunology ; CD8-Positive T-Lymphocytes/immunology ; Cell Line ; Cricetinae ; Dendritic Cells/enzymology/*immunology ; Enzyme Activation ; Humans ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Microtubule-Associated Proteins/genetics ; Protein-Serine-Threonine Kinases/*biosynthesis/genetics ; Yellow Fever Vaccine/*immunology
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    Fear of predation slows plant-litter decomposition (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-06-16
    Description: Aboveground consumers are believed to affect ecosystem functioning by regulating the quantity and quality of plant litter entering the soil. We uncovered a pathway whereby terrestrial predators regulate ecosystem processes via indirect control over soil community function. Grasshopper herbivores stressed by spider predators have a higher body carbon-to-nitrogen ratio than do grasshoppers raised without spiders. This change in elemental content does not slow grasshopper decomposition but perturbs belowground community function, decelerating the subsequent decomposition of plant litter. This legacy effect of predation on soil community function appears to be regulated by the amount of herbivore protein entering the soil.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hawlena, Dror -- Strickland, Michael S -- Bradford, Mark A -- Schmitz, Oswald J -- New York, N.Y. -- Science. 2012 Jun 15;336(6087):1434-8. doi: 10.1126/science.1220097.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Forestry and Environmental Studies, Yale University, 370 Prospect Street, New Haven, CT 06511, USA. dror.hawlena@mail.huji.ac.il〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22700928" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/metabolism ; Biomass ; Carbon/analysis/metabolism ; Ecosystem ; Energy Metabolism ; Fear ; *Food Chain ; Grasshoppers/chemistry/*physiology ; Herbivory/physiology ; Insect Proteins/analysis/metabolism ; Nitrogen/analysis/metabolism ; *Plants ; *Predatory Behavior ; Soil/chemistry ; *Soil Microbiology ; Spiders/*physiology ; *Stress, Physiological
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    The ancient drug salicylate directly activates AMP-activated protein kinase (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-04-21
    Description: Salicylate, a plant product, has been in medicinal use since ancient times. More recently, it has been replaced by synthetic derivatives such as aspirin and salsalate, both of which are rapidly broken down to salicylate in vivo. At concentrations reached in plasma after administration of salsalate or of aspirin at high doses, salicylate activates adenosine monophosphate-activated protein kinase (AMPK), a central regulator of cell growth and metabolism. Salicylate binds at the same site as the synthetic activator A-769662 to cause allosteric activation and inhibition of dephosphorylation of the activating phosphorylation site, threonine-172. In AMPK knockout mice, effects of salicylate to increase fat utilization and to lower plasma fatty acids in vivo were lost. Our results suggest that AMPK activation could explain some beneficial effects of salsalate and aspirin in humans.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3399766/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3399766/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hawley, Simon A -- Fullerton, Morgan D -- Ross, Fiona A -- Schertzer, Jonathan D -- Chevtzoff, Cyrille -- Walker, Katherine J -- Peggie, Mark W -- Zibrova, Darya -- Green, Kevin A -- Mustard, Kirsty J -- Kemp, Bruce E -- Sakamoto, Kei -- Steinberg, Gregory R -- Hardie, D Grahame -- 080982/Wellcome Trust/United Kingdom -- 097726/Wellcome Trust/United Kingdom -- MC_U127088492/Medical Research Council/United Kingdom -- Canadian Institutes of Health Research/Canada -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 May 18;336(6083):918-22. doi: 10.1126/science.1215327. Epub 2012 Apr 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cell Signalling and Immunology, College of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22517326" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/genetics/*metabolism ; Amino Acid Substitution ; Animals ; Aspirin/pharmacology ; Binding Sites ; Carbohydrate Metabolism/drug effects ; Cell Line ; Enzyme Activation ; Enzyme Activators/pharmacology ; HEK293 Cells ; Humans ; Lipid Metabolism/drug effects ; Liver/drug effects/metabolism ; Mice ; Mice, Knockout ; Mutation ; Oxygen Consumption/drug effects ; Phosphorylation ; Pyrones/pharmacology ; Rats ; Salicylates/blood/*metabolism/*pharmacology ; Thiophenes/pharmacology
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    Trade-offs of chemotactic foraging in turbulent water (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-11-03
    Description: Bacteria play an indispensable role in marine biogeochemistry by recycling dissolved organic matter. Motile species can exploit small, ephemeral solute patches through chemotaxis and thereby gain a fitness advantage over nonmotile competitors. This competition occurs in a turbulent environment, yet turbulence is generally considered inconsequential for bacterial uptake. In contrast, we show that turbulence affects uptake by stirring nutrient patches into networks of thin filaments that motile bacteria can readily exploit. We find that chemotactic motility is subject to a trade-off between the uptake benefit due to chemotaxis and the cost of locomotion, resulting in an optimal swimming speed. A second trade-off results from the competing effects of stirring and mixing and leads to the prediction that chemotaxis is optimally favored at intermediate turbulence intensities.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taylor, John R -- Stocker, Roman -- New York, N.Y. -- Science. 2012 Nov 2;338(6107):675-9. doi: 10.1126/science.1219417.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23118190" target="_blank"〉PubMed〈/a〉
    Keywords: *Bacterial Physiological Phenomena ; *Chemotaxis ; Computer Simulation ; Ecosystem ; *Microbial Interactions ; Movement ; Seawater/*microbiology ; *Water Movements
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    Sedlin controls the ER export of procollagen by regulating the Sar1 cycle (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-09-29
    Description: Newly synthesized proteins exit the endoplasmic reticulum (ER) via coat protein complex II (COPII) vesicles. Procollagen (PC), however, forms prefibrils that are too large to fit into typical COPII vesicles; PC thus needs large transport carriers, which we term megacarriers. TANGO1 assists PC packing, but its role in promoting the growth of megacarriers is not known. We found that TANGO1 recruited Sedlin, a TRAPP component that is defective in spondyloepiphyseal dysplasia tarda (SEDT), and that Sedlin was required for the ER export of PC. Sedlin bound and promoted efficient cycling of Sar1, a guanosine triphosphatase that can constrict membranes, and thus allowed nascent carriers to grow and incorporate PC prefibrils. This joint action of TANGO1 and Sedlin sustained the ER export of PC, and its derangement may explain the defective chondrogenesis underlying SEDT.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3471527/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3471527/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Venditti, Rossella -- Scanu, Tiziana -- Santoro, Michele -- Di Tullio, Giuseppe -- Spaar, Alexander -- Gaibisso, Renato -- Beznoussenko, Galina V -- Mironov, Alexander A -- Mironov, Alexander Jr -- Zelante, Leopoldo -- Piemontese, Maria Rosaria -- Notarangelo, Angelo -- Malhotra, Vivek -- Vertel, Barbara M -- Wilson, Cathal -- De Matteis, Maria Antonietta -- AR053696/AR/NIAMS NIH HHS/ -- GGP06166/Telethon/Italy -- GGP07075/Telethon/Italy -- GSP08002/Telethon/Italy -- GTF08001/Telethon/Italy -- New York, N.Y. -- Science. 2012 Sep 28;337(6102):1668-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Telethon Institute of Genetics and Medicine, Naples, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23019651" target="_blank"〉PubMed〈/a〉
    Keywords: Aryl Hydrocarbon Receptor Nuclear Translocator/*metabolism ; COP-Coated Vesicles/metabolism ; Cell Line ; Chondrogenesis/genetics ; Endoplasmic Reticulum/*metabolism ; Golgi Apparatus/metabolism ; Humans ; Membrane Transport Proteins/genetics/*metabolism ; Monomeric GTP-Binding Proteins/*metabolism ; Mutation ; Osteochondrodysplasias/genetics/metabolism ; Procollagen/*metabolism ; Protein Transport ; Transcription Factors/genetics/*metabolism
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    Predatory fish select for coordinated collective motion in virtual prey (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-08-21
    Description: Movement in animal groups is highly varied and ranges from seemingly disordered motion in swarms to coordinated aligned motion in flocks and schools. These social interactions are often thought to reduce risk from predators, despite a lack of direct evidence. We investigated risk-related selection for collective motion by allowing real predators (bluegill sunfish) to hunt mobile virtual prey. By fusing simulated and real animal behavior, we isolated predator effects while controlling for confounding factors. Prey with a tendency to be attracted toward, and to align direction of travel with, near neighbors tended to form mobile coordinated groups and were rarely attacked. These results demonstrate that collective motion could evolve as a response to predation, without prey being able to detect and respond to predators.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ioannou, C C -- Guttal, V -- Couzin, I D -- New York, N.Y. -- Science. 2012 Sep 7;337(6099):1212-5. doi: 10.1126/science.1218919. Epub 2012 Aug 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA. C.C.Ioannou@bristol.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22903520" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; Biological Evolution ; Computer Simulation ; Ecosystem ; Movement ; Perciformes/*physiology ; *Predatory Behavior
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    GSK3-TIP60-ULK1 signaling pathway links growth factor deprivation to autophagy (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-04-28
    Description: In metazoans, cells depend on extracellular growth factors for energy homeostasis. We found that glycogen synthase kinase-3 (GSK3), when deinhibited by default in cells deprived of growth factors, activates acetyltransferase TIP60 through phosphorylating TIP60-Ser(86), which directly acetylates and stimulates the protein kinase ULK1, which is required for autophagy. Cells engineered to express TIP60(S86A) that cannot be phosphorylated by GSK3 could not undergo serum deprivation-induced autophagy. An acetylation-defective mutant of ULK1 failed to rescue autophagy in ULK1(-/-) mouse embryonic fibroblasts. Cells used signaling from GSK3 to TIP60 and ULK1 to regulate autophagy when deprived of serum but not glucose. These findings uncover an activating pathway that integrates protein phosphorylation and acetylation to connect growth factor deprivation to autophagy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, Shu-Yong -- Li, Terytty Yang -- Liu, Qing -- Zhang, Cixiong -- Li, Xiaotong -- Chen, Yan -- Zhang, Shi-Meng -- Lian, Guili -- Liu, Qi -- Ruan, Ka -- Wang, Zhen -- Zhang, Chen-Song -- Chien, Kun-Yi -- Wu, Jiawei -- Li, Qinxi -- Han, Jiahuai -- Lin, Sheng-Cai -- New York, N.Y. -- Science. 2012 Apr 27;336(6080):477-81. doi: 10.1126/science.1217032.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Fujian, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22539723" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Autophagy ; Cell Line ; Cell Line, Tumor ; Culture Media ; Culture Media, Serum-Free ; Glucose/metabolism ; Glycogen Synthase Kinase 3/genetics/*metabolism ; HEK293 Cells ; Histone Acetyltransferases/genetics/*metabolism ; Humans ; Intercellular Signaling Peptides and Proteins/metabolism ; Intracellular Signaling Peptides and Proteins/genetics/*metabolism ; Mice ; Phosphorylation ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; Rats ; *Signal Transduction ; Trans-Activators/genetics/metabolism
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    Tumor necrosis factor signaling requires iRhom2 to promote trafficking and activation of TACE (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-01-17
    Description: The cytokine tumor necrosis factor (TNF) is the primary trigger of inflammation. Like many extracellular signaling proteins, TNF is synthesized as a transmembrane protein; the active signal is its ectodomain, which is shed from cells after cleavage by an ADAM family metalloprotease, ADAM17 (TNFalpha-converting enzyme, TACE). We report that iRhom2 (RHBDF2), a proteolytically inactive member of the rhomboid family, is required for TNF release in mice. iRhom2 binds TACE and promotes its exit from the endoplasmic reticulum. The failure of TACE to exit the endoplasmic reticulum in the absence of iRhom2 prevents the furin-mediated maturation and trafficking of TACE to the cell surface, the site of TNF cleavage. Given the role of TNF in autoimmune and inflammatory diseases, iRhom2 may represent an attractive therapeutic target.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3272371/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3272371/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Adrain, Colin -- Zettl, Markus -- Christova, Yonka -- Taylor, Neil -- Freeman, Matthew -- MC_U105178780/Medical Research Council/United Kingdom -- U.1051.01.009(78780)/Medical Research Council/United Kingdom -- U105178780/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 Jan 13;335(6065):225-8. doi: 10.1126/science.1214400.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Laboratory of Molecular Biology, Hills Road, Cambridge CB2 0QH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22246777" target="_blank"〉PubMed〈/a〉
    Keywords: ADAM Proteins/*metabolism ; Animals ; Carrier Proteins/genetics/*metabolism ; Cell Line ; Cell Membrane/metabolism ; Endoplasmic Reticulum/metabolism ; Enzyme Activation ; Furin/metabolism ; Humans ; Lipopolysaccharides/immunology ; Macrophages/metabolism ; Mice ; Mice, Knockout ; Protein Binding ; Protein Transport ; *Signal Transduction ; Tumor Necrosis Factor-alpha/*metabolism
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    A DOC2 protein identified by mutational profiling is essential for apicomplexan parasite exocytosis (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-17
    Description: Exocytosis is essential to the lytic cycle of apicomplexan parasites and required for the pathogenesis of toxoplasmosis and malaria. DOC2 proteins recruit the membrane fusion machinery required for exocytosis in a Ca(2+)-dependent fashion. Here, the phenotype of a Toxoplasma gondii conditional mutant impaired in host cell invasion and egress was pinpointed to a defect in secretion of the micronemes, an apicomplexan-specific organelle that contains adhesion proteins. Whole-genome sequencing identified the etiological point mutation in TgDOC2.1. A conditional allele of the orthologous gene engineered into Plasmodium falciparum was also defective in microneme secretion. However, the major effect was on invasion, suggesting that microneme secretion is dispensable for Plasmodium egress.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3354045/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3354045/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Farrell, Andrew -- Thirugnanam, Sivasakthivel -- Lorestani, Alexander -- Dvorin, Jeffrey D -- Eidell, Keith P -- Ferguson, David J P -- Anderson-White, Brooke R -- Duraisingh, Manoj T -- Marth, Gabor T -- Gubbels, Marc-Jan -- AI057919/AI/NIAID NIH HHS/ -- AI081220/AI/NIAID NIH HHS/ -- AI087874/AI/NIAID NIH HHS/ -- AI088314/AI/NIAID NIH HHS/ -- HG004719/HG/NHGRI NIH HHS/ -- K08 AI087874/AI/NIAID NIH HHS/ -- K08 AI087874-02/AI/NIAID NIH HHS/ -- R01 AI057919/AI/NIAID NIH HHS/ -- R01 HG004719/HG/NHGRI NIH HHS/ -- R21 AI081220/AI/NIAID NIH HHS/ -- R21 AI088314/AI/NIAID NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2012 Jan 13;335(6065):218-21. doi: 10.1126/science.1210829.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Boston College, Chestnut Hill, MA 02467, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22246776" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Calcium/*metabolism ; Calcium-Binding Proteins/chemistry/genetics/*metabolism ; Cell Line ; *Exocytosis ; Genes, Protozoan ; Genetic Complementation Test ; Genome, Protozoan ; Humans ; Models, Molecular ; Molecular Sequence Data ; Movement ; Mutagenesis ; Organelles/*metabolism ; Plasmodium falciparum/genetics/growth & development/physiology ; Point Mutation ; Protein Structure, Tertiary ; Protozoan Proteins/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Toxoplasma/genetics/growth & development/*physiology/ultrastructure
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    An overlapping protein-coding region in influenza A virus segment 3 modulates the host response (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-30
    Description: Influenza A virus (IAV) infection leads to variable and imperfectly understood pathogenicity. We report that segment 3 of the virus contains a second open reading frame ("X-ORF"), accessed via ribosomal frameshifting. The frameshift product, termed PA-X, comprises the endonuclease domain of the viral PA protein with a C-terminal domain encoded by the X-ORF and functions to repress cellular gene expression. PA-X also modulates IAV virulence in a mouse infection model, acting to decrease pathogenicity. Loss of PA-X expression leads to changes in the kinetics of the global host response, which notably includes increases in inflammatory, apoptotic, and T lymphocyte-signaling pathways. Thus, we have identified a previously unknown IAV protein that modulates the host response to infection, a finding with important implications for understanding IAV pathogenesis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3552242/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3552242/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jagger, B W -- Wise, H M -- Kash, J C -- Walters, K-A -- Wills, N M -- Xiao, Y-L -- Dunfee, R L -- Schwartzman, L M -- Ozinsky, A -- Bell, G L -- Dalton, R M -- Lo, A -- Efstathiou, S -- Atkins, J F -- Firth, A E -- Taubenberger, J K -- Digard, P -- 073126/Wellcome Trust/United Kingdom -- 088789/Wellcome Trust/United Kingdom -- G0700815/Medical Research Council/United Kingdom -- G0700815(82260)/Medical Research Council/United Kingdom -- G9800943/Medical Research Council/United Kingdom -- MR/J002232/1/Medical Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2012 Jul 13;337(6091):199-204. doi: 10.1126/science.1222213. Epub 2012 Jun 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Virology, Department of Pathology, University of Cambridge, Cambridge CB2 1QP, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22745253" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Codon ; Conserved Sequence ; Female ; *Frameshifting, Ribosomal ; Gene Expression Regulation ; Genome, Viral ; HEK293 Cells ; Humans ; Influenza A Virus, H1N1 Subtype/*genetics/growth & development/pathogenicity ; Influenza A virus/*genetics/metabolism ; Lung/pathology/virology ; Mice ; Mice, Inbred BALB C ; Molecular Sequence Data ; Mutation ; *Open Reading Frames ; Orthomyxoviridae Infections/genetics/immunology/pathology/*virology ; Protein Interaction Domains and Motifs ; Proteome ; RNA Replicase/chemistry/*genetics/*metabolism ; RNA, Messenger/genetics/metabolism ; RNA, Viral/genetics/metabolism ; Reassortant Viruses/genetics ; Repressor Proteins/chemistry/*genetics/*metabolism ; Viral Nonstructural Proteins/chemistry/*genetics/*metabolism ; Viral Proteins/biosynthesis/chemistry/*genetics/*metabolism ; Virus Replication
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Metabolite profiling identifies a key role for glycine in rapid cancer cell proliferation (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-26
    Description: Metabolic reprogramming has been proposed to be a hallmark of cancer, yet a systematic characterization of the metabolic pathways active in transformed cells is currently lacking. Using mass spectrometry, we measured the consumption and release (CORE) profiles of 219 metabolites from media across the NCI-60 cancer cell lines, and integrated these data with a preexisting atlas of gene expression. This analysis identified glycine consumption and expression of the mitochondrial glycine biosynthetic pathway as strongly correlated with rates of proliferation across cancer cells. Antagonizing glycine uptake and its mitochondrial biosynthesis preferentially impaired rapidly proliferating cells. Moreover, higher expression of this pathway was associated with greater mortality in breast cancer patients. Increased reliance on glycine may represent a metabolic vulnerability for selectively targeting rapid cancer cell proliferation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3526189/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3526189/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jain, Mohit -- Nilsson, Roland -- Sharma, Sonia -- Madhusudhan, Nikhil -- Kitami, Toshimori -- Souza, Amanda L -- Kafri, Ran -- Kirschner, Marc W -- Clish, Clary B -- Mootha, Vamsi K -- K08 HL107451/HL/NHLBI NIH HHS/ -- K08HL107451/HL/NHLBI NIH HHS/ -- R01 DK081457/DK/NIDDK NIH HHS/ -- R01 GM026875/GM/NIGMS NIH HHS/ -- R01DK081457/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2012 May 25;336(6084):1040-4. doi: 10.1126/science.1218595.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Broad Institute, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22628656" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/genetics/metabolism/pathology ; Cell Cycle ; Cell Line ; Cell Line, Tumor ; *Cell Proliferation ; Cell Transformation, Neoplastic ; Chromatography, Liquid ; Culture Media ; Gene Expression ; Gene Expression Profiling ; Glycine/biosynthesis/*metabolism ; Humans ; Metabolic Networks and Pathways/genetics ; Metabolome ; Mitochondria/enzymology/metabolism ; Neoplasms/genetics/*metabolism/*pathology ; Purines/biosynthesis ; Tandem Mass Spectrometry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Water management. Water sustainability for China and beyond (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-08-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Jianguo -- Yang, Wu -- New York, N.Y. -- Science. 2012 Aug 10;337(6095):649-50. doi: 10.1126/science.1219471.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Systems Integration and Sustainability, Michigan State University, East Lansing, MI 48824, USA. liuji@msu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22879488" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture ; Animals ; China ; *Conservation of Natural Resources ; Ecosystem ; Environmental Monitoring ; Humans ; International Cooperation ; Population Growth ; *Public Policy ; *Water ; Water Pollution ; Water Quality ; *Water Supply
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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