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  • *Biological Evolution  (120)
  • Amino Acid Sequence  (111)
  • American Association for the Advancement of Science (AAAS)  (227)
  • Hindawi
  • 2010-2014  (210)
  • 1980-1984  (17)
  • 2013  (96)
  • 2012  (114)
  • 1981  (17)
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  • 2010-2014  (210)
  • 1980-1984  (17)
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  • 1
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    Ancestral developmental potential facilitates parallel evolution in ants (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-10
    Description: Complex worker caste systems have contributed to the evolutionary success of advanced ant societies; however, little is known about the developmental processes underlying their origin and evolution. We combined hormonal manipulation, gene expression, and phylogenetic analyses with field observations to understand how novel worker subcastes evolve. We uncovered an ancestral developmental potential to produce a "supersoldier" subcaste that has been actualized at least two times independently in the hyperdiverse ant genus Pheidole. This potential has been retained and can be environmentally induced throughout the genus. Therefore, the retention and induction of this potential have facilitated the parallel evolution of supersoldiers through a process known as genetic accommodation. The recurrent induction of ancestral developmental potential may facilitate the adaptive and parallel evolution of phenotypes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rajakumar, Rajendhran -- San Mauro, Diego -- Dijkstra, Michiel B -- Huang, Ming H -- Wheeler, Diana E -- Hiou-Tim, Francois -- Khila, Abderrahman -- Cournoyea, Michael -- Abouheif, Ehab -- New York, N.Y. -- Science. 2012 Jan 6;335(6064):79-82. doi: 10.1126/science.1211451.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, McGill University, 1205 Avenue Dr. Penfield, Montreal, Quebec, Canada, H3A 1B1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22223805" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ants/*genetics/growth & development/physiology ; *Biological Evolution ; Environment ; Female ; Genes, Insect ; Larva/growth & development ; Male ; Methoprene/pharmacology ; Molecular Sequence Data ; Phenotype ; Phylogeny ; Selection, Genetic ; Social Behavior ; Wings, Animal/growth & development
    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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    MARF1 regulates essential oogenic processes in mice (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-24
    Description: Development of fertilization-competent oocytes depends on integrated processes controlling meiosis, cytoplasmic development, and maintenance of genomic integrity. We show that meiosis arrest female 1 (MARF1) is required for these processes in mammalian oocytes. Mutations of Marf1 cause female infertility characterized by up-regulation of a cohort of transcripts, increased retrotransposon expression, defective cytoplasmic maturation, and meiotic arrest. Up-regulation of protein phosphatase 2 catalytic subunit (PPP2CB) is key to the meiotic arrest phenotype. Moreover, Iap and Line1 retrotransposon messenger RNAs are also up-regulated, and, concomitantly, DNA double-strand breaks are elevated in mutant oocytes. Therefore MARF1, by suppressing levels of specific transcripts, is an essential regulator of important oogenic processes leading to female fertility and the development of healthy offspring.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3612990/" 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/PMC3612990/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Su, You-Qiang -- Sugiura, Koji -- Sun, Fengyun -- Pendola, Janice K -- Cox, Gregory A -- Handel, Mary Ann -- Schimenti, John C -- Eppig, John J -- CA34196/CA/NCI NIH HHS/ -- HD42137/HD/NICHD NIH HHS/ -- P01 HD042137/HD/NICHD NIH HHS/ -- P30 CA034196/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2012 Mar 23;335(6075):1496-9. doi: 10.1126/science.1214680.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Jackson Laboratory, Bar Harbor, ME 04609, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22442484" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Cycle Proteins/chemistry/genetics/*metabolism ; DNA Breaks, Double-Stranded ; Embryonic Development ; Female ; *Fertility ; Meiosis ; Mice ; Molecular Sequence Data ; Mutation ; Oocytes/*physiology ; *Oogenesis ; Phenotype ; Protein Phosphatase 2/genetics/metabolism ; Protein Structure, Tertiary ; RNA, Messenger/genetics/metabolism ; Retroelements ; Transcription, Genetic ; Transcriptome ; Up-Regulation
    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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    Evolution's misleading language (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burdett, Alfred Nigel -- New York, N.Y. -- Science. 2012 Nov 9;338(6108):741-2. doi: 10.1126/science.338.6108.741.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23139313" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; *Language
    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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    Secreted kinase phosphorylates extracellular proteins that regulate biomineralization (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-15
    Description: Protein phosphorylation is a fundamental mechanism regulating nearly every aspect of cellular life. Several secreted proteins are phosphorylated, but the kinases responsible are unknown. We identified a family of atypical protein kinases that localize within the Golgi apparatus and are secreted. Fam20C appears to be the Golgi casein kinase that phosphorylates secretory pathway proteins within S-x-E motifs. Fam20C phosphorylates the caseins and several secreted proteins implicated in biomineralization, including the small integrin-binding ligand, N-linked glycoproteins (SIBLINGs). Consequently, mutations in Fam20C cause an osteosclerotic bone dysplasia in humans known as Raine syndrome. Fam20C is thus a protein kinase dedicated to the phosphorylation of extracellular proteins.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3754843/" 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/PMC3754843/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tagliabracci, Vincent S -- Engel, James L -- Wen, Jianzhong -- Wiley, Sandra E -- Worby, Carolyn A -- Kinch, Lisa N -- Xiao, Junyu -- Grishin, Nick V -- Dixon, Jack E -- DK018024-37/DK/NIDDK NIH HHS/ -- DK018849-36/DK/NIDDK NIH HHS/ -- GM094575/GM/NIGMS NIH HHS/ -- R01 DK018849/DK/NIDDK NIH HHS/ -- R37 DK018024/DK/NIDDK NIH HHS/ -- T32 CA009523/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Jun 1;336(6085):1150-3. doi: 10.1126/science.1217817. Epub 2012 May 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of California, San Diego, La Jolla, CA 92093-0721, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582013" target="_blank"〉PubMed〈/a〉
    Keywords: Abnormalities, Multiple/genetics/metabolism ; Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Calcification, Physiologic ; Casein Kinase I ; Casein Kinases/metabolism ; Caseins/*metabolism ; Cattle ; Cell Line, Tumor ; Cleft Palate/genetics/metabolism ; Exophthalmos/genetics/metabolism ; Extracellular Matrix Proteins/chemistry/genetics/*metabolism/secretion ; Glycoproteins/metabolism ; Golgi Apparatus/*enzymology ; HEK293 Cells ; HeLa Cells ; Humans ; Microcephaly/genetics/metabolism ; Milk/enzymology ; Molecular Sequence Data ; Mutation ; Osteopontin ; Osteosclerosis/genetics/metabolism ; Phosphorylation ; Protein Sorting Signals ; Recombinant Fusion Proteins/chemistry/metabolism/secretion ; *Secretory Pathway ; Substrate Specificity
    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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  • 5
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    Mutations in the neverland gene turned Drosophila pachea into an obligate specialist species (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-29
    Description: Most living species exploit a limited range of resources. However, little is known about how tight associations build up during evolution between such specialist species and the hosts they use. We examined the dependence of Drosophila pachea on its single host, the senita cactus. Several amino acid changes in the Neverland oxygenase rendered D. pachea unable to transform cholesterol into 7-dehydrocholesterol (the first reaction in the steroid hormone biosynthetic pathway in insects) and thus made D. pachea dependent on the uncommon sterols of its host plant. The neverland mutations increase survival on the cactus's unusual sterols and are in a genomic region that faced recent positive selection. This study illustrates how relatively few genetic changes in a single gene may restrict the ecological niche of a species.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4729188/" 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/PMC4729188/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lang, Michael -- Murat, Sophie -- Clark, Andrew G -- Gouppil, Geraldine -- Blais, Catherine -- Matzkin, Luciano M -- Guittard, Emilie -- Yoshiyama-Yanagawa, Takuji -- Kataoka, Hiroshi -- Niwa, Ryusuke -- Lafont, Rene -- Dauphin-Villemant, Chantal -- Orgogozo, Virginie -- AI064950/AI/NIAID NIH HHS/ -- R01 AI064950/AI/NIAID NIH HHS/ -- R01 HG003229/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2012 Sep 28;337(6102):1658-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CNRS UMR7592, Universite Paris Diderot, Sorbonne Paris Cite, Institut Jacques Monod, Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23019649" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cactaceae/*metabolism ; Cholesterol/metabolism ; Conserved Sequence ; Dehydrocholesterols/metabolism ; Drosophila/genetics/*physiology ; Drosophila Proteins/chemistry/*genetics/metabolism ; *Food Chain ; Molecular Sequence Data ; *Mutation ; Oxygenases/chemistry/*genetics/metabolism ; Protein Conformation ; RNA Interference ; Selection, Genetic ; Species Specificity
    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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    Comment on "A diverse assemblage of Late Cretaceous dinosaur and bird feathers from Canadian amber" (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-02-22
    Description: McKellar et al. (Reports, 16 September 2011, p. 1619) analyzed Late Cretaceous amber specimens from Canada and identified some filaments as dinosaurian protofeathers. We argue that their analysis and data do not provide sufficient evidence to conclude that such filaments are feather-like structures. Further investigation, including destructive sampling, must be carried out for more convincing conclusions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dove, Carla J -- Straker, Lorian C -- New York, N.Y. -- Science. 2012 Feb 17;335(6070):796; author reply 796. doi: 10.1126/science.1216208.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Smithsonian Institution, National Museum of Natural History, Division of Birds, Washington, DC 20013-7012, USA. dovec@si.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22344430" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds/*anatomy & histology ; Dinosaurs/*anatomy & histology ; Feathers/*anatomy & histology ; *Fossils ; *Pigmentation
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  • 7
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    Identification and functional expression of the mitochondrial pyruvate carrier (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-26
    Description: The transport of pyruvate, the end product of glycolysis, into mitochondria is an essential process that provides the organelle with a major oxidative fuel. Although the existence of a specific mitochondrial pyruvate carrier (MPC) has been anticipated, its molecular identity remained unknown. We report that MPC is a heterocomplex formed by two members of a family of previously uncharacterized membrane proteins that are conserved from yeast to mammals. Members of the MPC family were found in the inner mitochondrial membrane, and yeast mutants lacking MPC proteins showed severe defects in mitochondrial pyruvate uptake. Coexpression of mouse MPC1 and MPC2 in Lactococcus lactis promoted transport of pyruvate across the membrane. These observations firmly establish these proteins as essential components of the MPC.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herzig, Sebastien -- Raemy, Etienne -- Montessuit, Sylvie -- Veuthey, Jean-Luc -- Zamboni, Nicola -- Westermann, Benedikt -- Kunji, Edmund R S -- Martinou, Jean-Claude -- MC_U105663139/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 Jul 6;337(6090):93-6. doi: 10.1126/science.1218530. Epub 2012 May 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, University of Geneva, Geneva, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22628554" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Anion Transport Proteins/chemistry/genetics/*metabolism ; Biological Transport ; Biosynthetic Pathways ; Culture Media ; Lactococcus lactis/genetics/metabolism ; Leucine/metabolism ; Mice ; Mitochondria/*metabolism ; Mitochondrial Membrane Transport Proteins/chemistry/genetics/*metabolism ; Mitochondrial Membranes/*metabolism ; Molecular Sequence Data ; Proprotein Convertase 1/chemistry/genetics/*metabolism ; Proprotein Convertase 2 ; Pyruvic Acid/*metabolism ; Recombinant Proteins/metabolism ; Saccharomyces cerevisiae/genetics/growth & development/metabolism ; Saccharomyces cerevisiae Proteins/chemistry/genetics/*metabolism ; Thioctic Acid/biosynthesis/metabolism ; Valine/metabolism
    Print ISSN: 0036-8075
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  • 8
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    Highly conserved protective epitopes on influenza B viruses (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-08-11
    Description: Identification of broadly neutralizing antibodies against influenza A viruses has raised hopes for the development of monoclonal antibody-based immunotherapy and "universal" vaccines for influenza. However, a substantial part of the annual flu burden is caused by two cocirculating, antigenically distinct lineages of influenza B viruses. Here, we report human monoclonal antibodies, CR8033, CR8071, and CR9114, that protect mice against lethal challenge from both lineages. Antibodies CR8033 and CR8071 recognize distinct conserved epitopes in the head region of the influenza B hemagglutinin (HA), whereas CR9114 binds a conserved epitope in the HA stem and protects against lethal challenge with influenza A and B viruses. These antibodies may inform on development of monoclonal antibody-based treatments and a universal flu vaccine for all influenza A and B viruses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3538841/" 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/PMC3538841/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dreyfus, Cyrille -- Laursen, Nick S -- Kwaks, Ted -- Zuijdgeest, David -- Khayat, Reza -- Ekiert, Damian C -- Lee, Jeong Hyun -- Metlagel, Zoltan -- Bujny, Miriam V -- Jongeneelen, Mandy -- van der Vlugt, Remko -- Lamrani, Mohammed -- Korse, Hans J W M -- Geelen, Eric -- Sahin, Ozcan -- Sieuwerts, Martijn -- Brakenhoff, Just P J -- Vogels, Ronald -- Li, Olive T W -- Poon, Leo L M -- Peiris, Malik -- Koudstaal, Wouter -- Ward, Andrew B -- Wilson, Ian A -- Goudsmit, Jaap -- Friesen, Robert H E -- GM080209/GM/NIGMS NIH HHS/ -- P41RR001209/RR/NCRR NIH HHS/ -- RR017573/RR/NCRR NIH HHS/ -- T32 GM080209/GM/NIGMS NIH HHS/ -- U54 GM094586/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Sep 14;337(6100):1343-8. doi: 10.1126/science.1222908. Epub 2012 Aug 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22878502" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/chemistry/*immunology ; Antibodies, Neutralizing/chemistry/immunology ; Conserved Sequence ; Hemagglutinin Glycoproteins, Influenza Virus/*immunology ; Humans ; Immunodominant Epitopes/chemistry/*immunology ; Influenza B virus/*immunology ; Influenza Vaccines/*immunology ; Mice ; Molecular Sequence Data ; Neutralization Tests ; Orthomyxoviridae Infections/*prevention & control ; Protein Conformation
    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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  • 9
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    Paleontology. Old and groovy (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Droser, Mary L -- Gehling, James G -- New York, N.Y. -- Science. 2012 Jun 29;336(6089):1646-7. doi: 10.1126/science.1223848.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth Sciences, University of California, Riverside, Riverside, CA 92521, USA. mary.droser@ucr.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22745409" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Fossils
    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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  • 10
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    Anthropology. Did australopiths climb trees? (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Larson, Susan -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):478-9. doi: 10.1126/science.1230128.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Anatomical Sciences, School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA. susan.larson@stonybrook.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23112319" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; Animals ; *Biological Evolution ; Hominidae/*anatomy & histology ; Humans ; *Locomotion ; Scapula/*anatomy & histology
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  • 11
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    Global correlations in tropical tree species richness and abundance reject neutrality (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-28
    Description: Patterns of species richness and relative abundance at some scales cannot be distinguished from predictions of null models, including zero-sum neutral models of population change and random speciation-extinction models of evolutionary diversification. Both models predict that species richness or population abundance produced by independent iterations of the same processes in different regions should be uncorrelated. We find instead that the number of species and individuals in families of trees in forest plots are strongly correlated across Southeast Asia, Africa, and tropical America. These correlations imply that deterministic processes influenced by evolutionarily conservative family-level traits constrain the number of confamilial tree species and individuals that can be supported in regional species pools and local assemblages in humid tropical forests.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ricklefs, Robert E -- Renner, Susanne S -- New York, N.Y. -- Science. 2012 Jan 27;335(6067):464-7. doi: 10.1126/science.1215182.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Missouri-St. Louis, MO 63121-4499, USA. ricklefs@umsl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22282811" target="_blank"〉PubMed〈/a〉
    Keywords: Africa, Western ; Asia, Southeastern ; *Biodiversity ; *Biological Evolution ; *Ecosystem ; Extinction, Biological ; Genetic Speciation ; Geography ; South America ; *Trees ; Tropical Climate
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 12
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    Identification of small molecule activators of cryptochrome (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-07-17
    Description: Impairment of the circadian clock has been associated with numerous disorders, including metabolic disease. Although small molecules that modulate clock function might offer therapeutic approaches to such diseases, only a few compounds have been identified that selectively target core clock proteins. From an unbiased cell-based circadian phenotypic screen, we identified KL001, a small molecule that specifically interacts with cryptochrome (CRY). KL001 prevented ubiquitin-dependent degradation of CRY, resulting in lengthening of the circadian period. In combination with mathematical modeling, our studies using KL001 revealed that CRY1 and CRY2 share a similar functional role in the period regulation. Furthermore, KL001-mediated CRY stabilization inhibited glucagon-induced gluconeogenesis in primary hepatocytes. KL001 thus provides a tool to study the regulation of CRY-dependent physiology and aid development of clock-based therapeutics of diabetes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3589997/" 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/PMC3589997/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hirota, Tsuyoshi -- Lee, Jae Wook -- St John, Peter C -- Sawa, Mariko -- Iwaisako, Keiko -- Noguchi, Takako -- Pongsawakul, Pagkapol Y -- Sonntag, Tim -- Welsh, David K -- Brenner, David A -- Doyle, Francis J 3rd -- Schultz, Peter G -- Kay, Steve A -- GM074868/GM/NIGMS NIH HHS/ -- GM085764/GM/NIGMS NIH HHS/ -- GM096873/GM/NIGMS NIH HHS/ -- MH051573/MH/NIMH NIH HHS/ -- MH082945/MH/NIMH NIH HHS/ -- P50 GM085764/GM/NIGMS NIH HHS/ -- R01 GM041804/GM/NIGMS NIH HHS/ -- R01 GM074868/GM/NIGMS NIH HHS/ -- R01 GM096873/GM/NIGMS NIH HHS/ -- R01 MH051573/MH/NIMH NIH HHS/ -- R01 MH082945/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2012 Aug 31;337(6098):1094-7. doi: 10.1126/science.1223710. Epub 2012 Jul 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22798407" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Amino Acid Sequence ; Animals ; Carbazoles/chemistry/isolation & purification/*pharmacology ; Cell Line, Tumor ; Circadian Clocks/*drug effects ; Cryptochromes/*agonists/metabolism ; Gluconeogenesis/drug effects/genetics ; Glucose-6-Phosphatase/genetics ; HEK293 Cells ; Hepatocytes/drug effects/metabolism ; Humans ; Liver/cytology/drug effects/metabolism ; Mice ; Molecular Sequence Data ; Phosphoenolpyruvate Carboxykinase (GTP)/genetics ; Protein Stability/drug effects ; Proteolysis/drug effects ; *Small Molecule Libraries ; Sulfonamides/chemistry/isolation & purification/*pharmacology
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  • 13
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    Ecological context influences epidemic size and parasite-driven evolution (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-31
    Description: The occurrence and magnitude of disease outbreaks can strongly influence host evolution. In particular, when hosts face a resistance-fecundity trade-off, they might evolve increased resistance to infection during larger epidemics but increased susceptibility during smaller ones. We tested this theoretical prediction by using a zooplankton-yeast host-parasite system in which ecological factors determine epidemic size. Lakes with high productivity and low predation pressure had large yeast epidemics; during these outbreaks, hosts became more resistant to infection. However, with low productivity and high predation, epidemics remained small and hosts evolved increased susceptibility. Thus, by modulating disease outbreaks, ecological context (productivity and predation) shaped host evolution during epidemics. Consequently, anthropogenic alteration of productivity and predation might strongly influence both ecological and evolutionary outcomes of disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duffy, Meghan A -- Ochs, Jessica Housley -- Penczykowski, Rachel M -- Civitello, David J -- Klausmeier, Christopher A -- Hall, Spencer R -- New York, N.Y. -- Science. 2012 Mar 30;335(6076):1636-8. doi: 10.1126/science.1215429.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biology, Georgia Institute of Technology, Atlanta, GA 30332-0230, USA. duffy@gatech.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22461614" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Daphnia/*microbiology/*physiology ; *Ecosystem ; Female ; Fishes ; *Host-Pathogen Interactions ; Indiana ; *Lakes ; Male ; Metschnikowia/*pathogenicity ; Models, Biological ; Population Dynamics ; Predatory Behavior ; Reproduction ; Zooplankton/microbiology/physiology
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  • 14
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    Structural insight into the ion-exchange mechanism of the sodium/calcium exchanger (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-02-11
    Description: Sodium/calcium (Na(+)/Ca(2+)) exchangers (NCX) are membrane transporters that play an essential role in maintaining the homeostasis of cytosolic Ca(2+) for cell signaling. We demonstrated the Na(+)/Ca(2+)-exchange function of an NCX from Methanococcus jannaschii (NCX_Mj) and report its 1.9 angstrom crystal structure in an outward-facing conformation. Containing 10 transmembrane helices, the two halves of NCX_Mj share a similar structure with opposite orientation. Four ion-binding sites cluster at the center of the protein: one specific for Ca(2+) and three that likely bind Na(+). Two passageways allow for Na(+) and Ca(2+) access to the central ion-binding sites from the extracellular side. Based on the symmetry of NCX_Mj and its ability to catalyze bidirectional ion-exchange reactions, we propose a structure model for the inward-facing NCX_Mj.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liao, Jun -- Li, Hua -- Zeng, Weizhong -- Sauer, David B -- Belmares, Ricardo -- Jiang, Youxing -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Feb 10;335(6069):686-90. doi: 10.1126/science.1215759.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9040, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22323814" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Archaeal Proteins/*chemistry/metabolism ; Binding Sites ; Calcium/*metabolism ; Crystallization ; Crystallography, X-Ray ; Ion Transport ; Ligands ; Methanococcales/*chemistry/*metabolism ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Protein Structure, Secondary ; Sodium/*metabolism ; Sodium-Calcium Exchanger/*chemistry/*metabolism
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  • 15
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    Retrospective. Lynn Margulis (1938-2011) (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-01-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schaechter, Moselio -- New York, N.Y. -- Science. 2012 Jan 20;335(6066):302. doi: 10.1126/science.1218027.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biology Department, San Diego State University, San Diego, CA 92182, USA. mschaech@sunstroke.sdsu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22267805" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; *Eukaryotic Cells ; History, 20th Century ; History, 21st Century ; *Symbiosis ; United States
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  • 16
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    Comment on "Global correlations in tropical tree species richness and abundance reject neutrality" (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-30
    Description: Ricklefs and Renner (Reports, 27 January 2012, p. 464) suggested that strong correlations in the diversity of shared families between isolated tree assemblages reject neutrality. Simulations of a neutral model indicate, however, that isolated assemblages under various configurations of random speciation and extinction do sustain strong correlations in the diversity of shared families. Thus, reported correlations support rather than reject neutral theory.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mora, Camilo -- New York, N.Y. -- Science. 2012 Jun 29;336(6089):1639; author reply 1639. doi: 10.1126/science.1220980.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geography, University of Hawaii, Honolulu, HI 96822, USA. cmora@hawaii.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22745402" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Biological Evolution ; *Ecosystem ; *Trees
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  • 17
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    Crystal structure of the heterodimeric CLOCK:BMAL1 transcriptional activator complex (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-02
    Description: The circadian clock in mammals is driven by an autoregulatory transcriptional feedback mechanism that takes approximately 24 hours to complete. A key component of this mechanism is a heterodimeric transcriptional activator consisting of two basic helix-loop-helix PER-ARNT-SIM (bHLH-PAS) domain protein subunits, CLOCK and BMAL1. Here, we report the crystal structure of a complex containing the mouse CLOCK:BMAL1 bHLH-PAS domains at 2.3 A resolution. The structure reveals an unusual asymmetric heterodimer with the three domains in each of the two subunits--bHLH, PAS-A, and PAS-B--tightly intertwined and involved in dimerization interactions, resulting in three distinct protein interfaces. Mutations that perturb the observed heterodimer interfaces affect the stability and activity of the CLOCK:BMAL1 complex as well as the periodicity of the circadian oscillator. The structure of the CLOCK:BMAL1 complex is a starting point for understanding at an atomic level the mechanism driving the mammalian circadian clock.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3694778/" 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/PMC3694778/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, Nian -- Chelliah, Yogarany -- Shan, Yongli -- Taylor, Clinton A -- Yoo, Seung-Hee -- Partch, Carrie -- Green, Carla B -- Zhang, Hong -- Takahashi, Joseph S -- R01 GM081875/GM/NIGMS NIH HHS/ -- R01 GM090247/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Jul 13;337(6091):189-94. doi: 10.1126/science.1222804. Epub 2012 May 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22653727" target="_blank"〉PubMed〈/a〉
    Keywords: ARNTL Transcription Factors/*chemistry/genetics/metabolism ; Amino Acid Sequence ; Animals ; CLOCK Proteins/*chemistry/genetics/metabolism ; Cells, Cultured ; *Circadian Rhythm ; Crystallography, X-Ray ; DNA/metabolism ; HEK293 Cells ; Helix-Loop-Helix Motifs ; Humans ; Mice ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry/metabolism ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Multimerization ; Protein Structure, Quaternary ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Subunits/chemistry/metabolism ; Static Electricity ; *Transcriptional Activation
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  • 18
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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
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  • 19
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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)
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    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
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  • 20
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    Comment on "Levy walks evolve through interaction between movement and environmental complexity" (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-03-01
    Description: de Jager et al. (Reports, 24 June 2011, p. 1551) concluded that mussels Levy walk. We confronted a larger model set with these data and found that mussels do not Levy walk: Their movement is best described by a composite Brownian walk. This shows how model selection based on an impoverished set of candidate models can lead to incorrect inferences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jansen, Vincent A A -- Mashanova, Alla -- Petrovskii, Sergei -- BB/G007934/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 Feb 24;335(6071):918; author reply 918. doi: 10.1126/science.1215747.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biological Sciences, Royal Holloway, University of London, Surrey TW20 0EX, UK. vincent.jansen@rhul.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22362991" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Ecosystem ; Mytilus edulis/*physiology
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  • 21
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    Evolution. Efficiency in evolutionary trade-offs (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-06-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Noor, Elad -- Milo, Ron -- New York, N.Y. -- Science. 2012 Jun 1;336(6085):1114-5. doi: 10.1126/science.1223193.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Sciences, The Weizmann Institute of Science, Rehovot 76100, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22654045" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/*metabolism ; *Biological Evolution ; Escherichia coli/*metabolism ; *Genetic Fitness ; *Metabolic Networks and Pathways ; *Phenotype
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    Centrosome loss in the evolution of planarians (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-01-10
    Description: The centrosome, a cytoplasmic organelle formed by cylinder-shaped centrioles surrounded by a microtubule-organizing matrix, is a hallmark of animal cells. The centrosome is conserved and essential for the development of all animal species described so far. Here, we show that planarians, and possibly other flatworms, lack centrosomes. In planarians, centrioles are only assembled in terminally differentiating ciliated cells through the acentriolar pathway to trigger the assembly of cilia. We identified a large set of conserved proteins required for centriole assembly in animals and note centrosome protein families that are missing from the planarian genome. Our study uncovers the molecular architecture and evolution of the animal centrosome and emphasizes the plasticity of animal cell biology and development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3347778/" 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/PMC3347778/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Azimzadeh, Juliette -- Wong, Mei Lie -- Downhour, Diane Miller -- Sanchez Alvarado, Alejandro -- Marshall, Wallace F -- GM077004/GM/NIGMS NIH HHS/ -- GM57260/GM/NIGMS NIH HHS/ -- R01 GM057260/GM/NIGMS NIH HHS/ -- R01 GM077004/GM/NIGMS NIH HHS/ -- R37 GM057260/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Jan 27;335(6067):461-3. doi: 10.1126/science.1214457. Epub 2012 Jan 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California-San Francisco, CA 94143, USA. juliette.azimzadeh@ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22223737" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Centrioles/metabolism/ultrastructure ; *Centrosome/metabolism/ultrastructure ; Cilia/metabolism/ultrastructure ; Genome, Helminth ; Helminth Proteins/*genetics/metabolism ; Movement ; Phenotype ; Planarians/*genetics/physiology/*ultrastructure ; RNA Interference ; Regeneration ; Selection, Genetic
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    Chitin-induced dimerization activates a plant immune receptor (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-02
    Description: Pattern recognition receptors confer plant resistance to pathogen infection by recognizing the conserved pathogen-associated molecular patterns. The cell surface receptor chitin elicitor receptor kinase 1 of Arabidopsis (AtCERK1) directly binds chitin through its lysine motif (LysM)-containing ectodomain (AtCERK1-ECD) to activate immune responses. The crystal structure that we solved of an AtCERK1-ECD complexed with a chitin pentamer reveals that their interaction is primarily mediated by a LysM and three chitin residues. By acting as a bivalent ligand, a chitin octamer induces AtCERK1-ECD dimerization that is inhibited by shorter chitin oligomers. A mutation attenuating chitin-induced AtCERK1-ECD dimerization or formation of nonproductive AtCERK1 dimer by overexpression of AtCERK1-ECD compromises AtCERK1-mediated signaling in plant cells. Together, our data support the notion that chitin-induced AtCERK1 dimerization is critical for its activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Tingting -- Liu, Zixu -- Song, Chuanjun -- Hu, Yunfei -- Han, Zhifu -- She, Ji -- Fan, Fangfang -- Wang, Jiawei -- Jin, Changwen -- Chang, Junbiao -- Zhou, Jian-Min -- Chai, Jijie -- New York, N.Y. -- Science. 2012 Jun 1;336(6085):1160-4. doi: 10.1126/science.1218867.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate Program in Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22654057" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylglucosamine/chemistry/metabolism ; Amino Acid Motifs ; Amino Acid Sequence ; Arabidopsis/immunology/*metabolism ; Arabidopsis Proteins/*chemistry/genetics/*metabolism ; Binding Sites ; Chitin/chemistry/*metabolism ; Crystallography, X-Ray ; Hydrogen Bonding ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry/metabolism ; Phosphorylation ; Plants, Genetically Modified ; Protein Multimerization ; Protein Structure, Tertiary ; Protein-Serine-Threonine Kinases/*chemistry/genetics/*metabolism ; Receptors, Pattern Recognition/*chemistry/genetics/*metabolism ; Signal Transduction
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    Comment on "Global correlations in tropical tree species richness and abundance reject neutrality" (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-30
    Description: Ricklefs and Renner (Reports, 27 January 2012, p. 464) found significant correlations for abundances and species diversities of families and orders of trees on different continents, which they suggested falsifies the neutral theory of biodiversity (NTB). We argue that the correlations among families and orders and the lack of correlations among genera can be explained by the NTB.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Anping -- Wang, Shaopeng -- Pacala, Stephen W -- New York, N.Y. -- Science. 2012 Jun 29;336(6089):1639; author reply 1639. doi: 10.1126/science.1222534.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA. anpingc@princeton.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22745403" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Biological Evolution ; *Ecosystem ; *Trees
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    Evolution of language. Experiments probe language's origins and development (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-04-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, Dennis -- New York, N.Y. -- Science. 2012 Apr 27;336(6080):408-11. doi: 10.1126/science.336.6080.408.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22539697" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Brain/*physiology ; Brain Mapping ; Cognition ; Computer Simulation ; *Cultural Evolution ; Finches ; Hominidae ; Humans ; *Language ; *Learning ; Linguistics ; Magnetic Resonance Imaging ; Tool Use Behavior ; Vocalization, Animal
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    Multidimensional optimality of microbial metabolism (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-05-05
    Description: Although the network topology of metabolism is well known, understanding the principles that govern the distribution of fluxes through metabolism lags behind. Experimentally, these fluxes can be measured by (13)C-flux analysis, and there has been a long-standing interest in understanding this functional network operation from an evolutionary perspective. On the basis of (13)C-determined fluxes from nine bacteria and multi-objective optimization theory, we show that metabolism operates close to the Pareto-optimal surface of a three-dimensional space defined by competing objectives. Consistent with flux data from evolved Escherichia coli, we propose that flux states evolve under the trade-off between two principles: optimality under one given condition and minimal adjustment between conditions. These principles form the forces by which evolution shapes metabolic fluxes in microorganisms' environmental context.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schuetz, Robert -- Zamboni, Nicola -- Zampieri, Mattia -- Heinemann, Matthias -- Sauer, Uwe -- New York, N.Y. -- Science. 2012 May 4;336(6081):601-4. doi: 10.1126/science.1216882.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Systems Biology, Eidgenossische Technische Hochschule Zurich, Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22556256" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Adenosine Triphosphate/metabolism ; Aerobiosis ; Algorithms ; Bacteria/growth & development/*metabolism ; *Biological Evolution ; Biomass ; Computer Simulation ; Escherichia coli/genetics/growth & development/*metabolism ; Glucose/metabolism ; *Metabolic Networks and Pathways ; Models, Biological
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    Evolution of shape by multiple regulatory changes to a growth gene (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-01
    Description: The genetic changes responsible for morphological differences between species are largely unidentified. Such changes can involve modifications of growth that are relevant to understanding evolution, development, and disease. We identified a gene that induces male-specific wing size and shape differences between Nasonia wasp species. Fine-scale mapping and in situ hybridization reveal that changes in at least three regions (two strictly in noncoding sequence) around the gene unpaired-like (upd-like) cause changes in spatial and temporal expression of upd-like in the developing wing and corresponding changes in wing width. Upd-like shows homology to the Drosophila unpaired gene, a well-studied signaling protein that regulates cell proliferation and differentiation. Our results indicate how multiple changes in the regulation of upd-like are involved in microevolution of morphological and sex-specific differences between species.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3520604/" 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/PMC3520604/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Loehlin, David W -- Werren, John H -- 5R01 GM070026-04/GM/NIGMS NIH HHS/ -- 5R24 GM084917-04/GM/NIGMS NIH HHS/ -- R01 GM070026/GM/NIGMS NIH HHS/ -- R24 GM084917/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Feb 24;335(6071):943-7. doi: 10.1126/science.1215193.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Rochester, Rochester, NY 14627, USA. loehlin@wisc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22363002" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Biological Evolution ; Cloning, Molecular ; Drosophila/genetics ; Drosophila Proteins/genetics ; Female ; Gene Expression Profiling ; Gene Expression Regulation, Developmental ; Genes, Insect ; Insect Proteins/*genetics/metabolism ; Male ; Molecular Sequence Data ; Morphogenesis/genetics ; Organ Size ; Quantitative Trait Loci ; Sex Characteristics ; Species Specificity ; Transcription Factors/genetics ; Wasps/anatomy & histology/*genetics/*growth & development ; Wings, Animal/*anatomy & histology/*growth & development/metabolism
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    Single-molecule fluorescence experiments determine protein folding transition path times (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-03-01
    Description: The transition path is the tiny fraction of an equilibrium molecular trajectory when a transition occurs as the free-energy barrier between two states is crossed. It is a single-molecule property that contains all the mechanistic information on how a process occurs. As a step toward observing transition paths in protein folding, we determined the average transition-path time for a fast- and a slow-folding protein from a photon-by-photon analysis of fluorescence trajectories in single-molecule Forster resonance energy transfer experiments. Whereas the folding rate coefficients differ by a factor of 10,000, the transition-path times differ by a factor of less than 5, which shows that a fast- and a slow-folding protein take almost the same time to fold when folding actually happens. A very simple model based on energy landscape theory can explain this result.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3878298/" 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/PMC3878298/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chung, Hoi Sung -- McHale, Kevin -- Louis, John M -- Eaton, William A -- Z99 DK999999/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2012 Feb 24;335(6071):981-4. doi: 10.1126/science.1215768.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIH), Bethesda, MD 20892-0520, USA. chunghoi@niddk.nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22363011" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Proteins/*chemistry ; Carrier Proteins/*chemistry ; Fluorescence Resonance Energy Transfer ; Kinetics ; Likelihood Functions ; Models, Molecular ; Molecular Sequence Data ; Photons ; Protein Conformation ; *Protein Folding ; Protein Interaction Domains and Motifs ; Protein Structure, Tertiary ; Thermodynamics
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    The amyloid precursor protein has a flexible transmembrane domain and binds cholesterol (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-06-02
    Description: C99 is the transmembrane carboxyl-terminal domain of the amyloid precursor protein that is cleaved by gamma-secretase to release the amyloid-beta polypeptides, which are associated with Alzheimer's disease. Nuclear magnetic resonance and electron paramagnetic resonance spectroscopy show that the extracellular amino terminus of C99 includes a surface-embedded "N-helix" followed by a short "N-loop" connecting to the transmembrane domain (TMD). The TMD is a flexibly curved alpha helix, making it well suited for processive cleavage by gamma-secretase. Titration of C99 reveals a binding site for cholesterol, providing mechanistic insight into how cholesterol promotes amyloidogenesis. Membrane-buried GXXXG motifs (G, Gly; X, any amino acid), which have an established role in oligomerization, were also shown to play a key role in cholesterol binding. The structure and cholesterol binding properties of C99 may aid in the design of Alzheimer's therapeutics.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3528355/" 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/PMC3528355/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barrett, Paul J -- Song, Yuanli -- Van Horn, Wade D -- Hustedt, Eric J -- Schafer, Johanna M -- Hadziselimovic, Arina -- Beel, Andrew J -- Sanders, Charles R -- F31 NS077681/NS/NINDS NIH HHS/ -- P01 GM080513/GM/NIGMS NIH HHS/ -- T32 GM008320/GM/NIGMS NIH HHS/ -- T32 GM08320/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Jun 1;336(6085):1168-71. doi: 10.1126/science.1219988.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Center for Structural Biology and Institute of Chemical Biology, Vanderbilt University School of Medicine, Nashville, TN 37232 USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22654059" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Amyloid beta-Protein Precursor/*chemistry/genetics/*metabolism ; Binding Sites ; Cholesterol/*metabolism ; Electron Spin Resonance Spectroscopy ; Humans ; Micelles ; Molecular Sequence Data ; Mutation ; Nuclear Magnetic Resonance, Biomolecular ; Peptide Fragments/*chemistry/genetics/*metabolism ; Protein Binding ; Protein Structure, Secondary ; Protein Structure, Tertiary
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    Structural basis for the rescue of stalled ribosomes: structure of YaeJ bound to the ribosome (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-03-17
    Description: In bacteria, the hybrid transfer-messenger RNA (tmRNA) rescues ribosomes stalled on defective messenger RNAs (mRNAs). However, certain gram-negative bacteria have evolved proteins that are capable of rescuing stalled ribosomes in a tmRNA-independent manner. Here, we report a 3.2 angstrom-resolution crystal structure of the rescue factor YaeJ bound to the Thermus thermophilus 70S ribosome in complex with the initiator tRNA(i)(fMet) and a short mRNA. The structure reveals that the C-terminal tail of YaeJ functions as a sensor to discriminate between stalled and actively translating ribosomes by binding in the mRNA entry channel downstream of the A site between the head and shoulder of the 30S subunit. This allows the N-terminal globular domain to sample different conformations, so that its conserved GGQ motif is optimally positioned to catalyze the hydrolysis of peptidyl-tRNA. This structure gives insights into the mechanism of YaeJ function and provides a basis for understanding how it rescues stalled ribosomes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3377438/" 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/PMC3377438/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gagnon, Matthieu G -- Seetharaman, Sai V -- Bulkley, David -- Steitz, Thomas A -- GM022778/GM/NIGMS NIH HHS/ -- P01 GM022778/GM/NIGMS NIH HHS/ -- P30 EB009998/EB/NIBIB NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Mar 16;335(6074):1370-2. doi: 10.1126/science.1217443.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520-8114, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22422986" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Carboxylic Ester Hydrolases/*chemistry/*metabolism ; Crystallography, X-Ray ; Escherichia coli/*chemistry ; Escherichia coli Proteins/*chemistry/*metabolism ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Protein Biosynthesis ; Protein Structure, Tertiary ; RNA, Bacterial/chemistry/metabolism ; RNA, Messenger/chemistry/metabolism ; RNA, Ribosomal/chemistry/metabolism ; RNA, Transfer, Amino Acyl/chemistry/metabolism ; RNA, Transfer, Met/chemistry/metabolism ; Ribosome Subunits, Large, Bacterial/chemistry/metabolism ; Ribosome Subunits, Small, Bacterial/chemistry/metabolism ; Ribosomes/*chemistry/metabolism ; Thermus thermophilus/*chemistry/metabolism/ultrastructure
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    Assembly of an evolutionarily new pathway for alpha-pyrone biosynthesis in Arabidopsis (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-08-28
    Description: Plants possess arrays of functionally diverse specialized metabolites, many of which are distributed taxonomically. Here, we describe the evolution of a class of substituted alpha-pyrone metabolites in Arabidopsis, which we have named arabidopyrones. The biosynthesis of arabidopyrones requires a cytochrome P450 enzyme (CYP84A4) to generate the catechol-substituted substrate for an extradiol ring-cleavage dioxygenase (AtLigB). Unlike other ring-cleavage-derived plant metabolites made from tyrosine, arabidopyrones are instead derived from phenylalanine through the early steps of phenylpropanoid metabolism. Whereas CYP84A4, an Arabidopsis-specific paralog of the lignin-biosynthetic enzyme CYP84A1, has neofunctionalized relative to its ancestor, AtLigB homologs are widespread among land plants and many bacteria. This study exemplifies the rapid evolution of a biochemical pathway formed by the addition of a new biological activity into an existing metabolic infrastructure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weng, Jing-Ke -- Li, Yi -- Mo, Huaping -- Chapple, Clint -- New York, N.Y. -- Science. 2012 Aug 24;337(6097):960-4. doi: 10.1126/science.1221614.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22923580" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/enzymology/genetics/*metabolism ; Arabidopsis Proteins/chemistry/genetics/*metabolism ; Base Sequence ; Biosynthetic Pathways ; Catalytic Domain ; Cytochrome P-450 Enzyme System/chemistry/genetics/*metabolism ; Dioxygenases/genetics/metabolism ; Evolution, Molecular ; Gene Duplication ; Genome, Plant ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Phenylalanine/metabolism ; Phylogeny ; Plant Stems/metabolism ; Plants, Genetically Modified ; Pyrones/chemistry/*metabolism
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    Climate's role in polar bear past (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Galbreath, Kurt E -- Cook, Joseph A -- Hoberg, Eric P -- New York, N.Y. -- Science. 2012 Jun 8;336(6086):1230. doi: 10.1126/science.336.6086.1230-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22679079" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Genome ; *Multilocus Sequence Typing ; Ursidae/*genetics
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    Structural basis for prereceptor modulation of plant hormones by GH3 proteins (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-05-26
    Description: Acyl acid amido synthetases of the GH3 family act as critical prereceptor modulators of plant hormone action; however, the molecular basis for their hormone selectivity is unclear. Here, we report the crystal structures of benzoate-specific Arabidopsis thaliana AtGH3.12/PBS3 and jasmonic acid-specific AtGH3.11/JAR1. These structures, combined with biochemical analysis, define features for the conjugation of amino acids to diverse acyl acid substrates and highlight the importance of conformational changes in the carboxyl-terminal domain for catalysis. We also identify residues forming the acyl acid binding site across the GH3 family and residues critical for amino acid recognition. Our results demonstrate how a highly adaptable three-dimensional scaffold is used for the evolution of promiscuous activity across an enzyme family for modulation of plant signaling molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Westfall, Corey S -- Zubieta, Chloe -- Herrmann, Jonathan -- Kapp, Ulrike -- Nanao, Max H -- Jez, Joseph M -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Jun 29;336(6089):1708-11. doi: 10.1126/science.1221863. Epub 2012 May 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Washington University, St. Louis, MO 63130, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22628555" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acids/chemistry/metabolism ; Arabidopsis ; Arabidopsis Proteins/*chemistry/metabolism ; Benzoates/chemistry ; Binding Sites ; Crystallography, X-Ray ; Cyclopentanes/chemistry ; Indoleacetic Acids/chemistry/metabolism ; Models, Molecular ; Molecular Sequence Data ; Nucleotidyltransferases/*chemistry/metabolism ; Oxylipins/chemistry ; Plant Growth Regulators/chemistry/metabolism ; Protein Structure, Tertiary ; Structure-Activity Relationship ; Substrate Specificity
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    Big brains, little bodies (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-12-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wcislo, William T -- New York, N.Y. -- Science. 2012 Dec 14;338(6113):1419; author reply 1419. doi: 10.1126/science.338.6113.1419-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23239715" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Brain/*anatomy & histology/*physiology ; Humans
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    Evolution. Getting to the root of aging (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-03
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3705936/" 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/PMC3705936/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baudisch, Annette -- Vaupel, James W -- AG-031719/AG/NIA NIH HHS/ -- P01 AG031719/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2012 Nov 2;338(6107):618-9. doi: 10.1126/science.1226467.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Research Group for Modeling the Evolution of Aging, Rostock, Germany. baudisch@demogr.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23118175" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Animals ; *Biological Evolution ; Fertility ; Humans ; Models, Biological ; Mortality ; Reproduction
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The crystal structure of TAL effector PthXo1 bound to its DNA target (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-10
    Description: DNA recognition by TAL effectors is mediated by tandem repeats, each 33 to 35 residues in length, that specify nucleotides via unique repeat-variable diresidues (RVDs). The crystal structure of PthXo1 bound to its DNA target was determined by high-throughput computational structure prediction and validated by heavy-atom derivatization. Each repeat forms a left-handed, two-helix bundle that presents an RVD-containing loop to the DNA. The repeats self-associate to form a right-handed superhelix wrapped around the DNA major groove. The first RVD residue forms a stabilizing contact with the protein backbone, while the second makes a base-specific contact to the DNA sense strand. Two degenerate amino-terminal repeats also interact with the DNA. Containing several RVDs and noncanonical associations, the structure illustrates the basis of TAL effector-DNA recognition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3427646/" 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/PMC3427646/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mak, Amanda Nga-Sze -- Bradley, Philip -- Cernadas, Raul A -- Bogdanove, Adam J -- Stoddard, Barry L -- R01 GM049857/GM/NIGMS NIH HHS/ -- R01 GM088277/GM/NIGMS NIH HHS/ -- R01 GM098861/GM/NIGMS NIH HHS/ -- R01GM098861/GM/NIGMS NIH HHS/ -- RL1 0CA833133/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2012 Feb 10;335(6069):716-9. doi: 10.1126/science.1216211. Epub 2012 Jan 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Basic Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, A3-025 Seattle, WA 98019, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22223736" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Proteins/*chemistry/*metabolism ; Binding Sites ; Crystallography, X-Ray ; DNA, Plant/*chemistry/*metabolism ; DNA-Binding Proteins/chemistry/metabolism ; High-Throughput Screening Assays ; Hydrogen Bonding ; Models, Molecular ; Molecular Sequence Data ; Physicochemical Processes ; Protein Binding ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Repetitive Sequences, Amino Acid ; Virulence Factors/*chemistry/*metabolism ; Xanthomonas/*chemistry/pathogenicity
    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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    Imaginal discs secrete insulin-like peptide 8 to mediate plasticity of growth and maturation (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-05
    Description: Developing animals frequently adjust their growth programs and/or their maturation or metamorphosis to compensate for growth disturbances (such as injury or tumor) and ensure normal adult size. Such plasticity entails tissue and organ communication to preserve their proportions and symmetry. Here, we show that imaginal discs autonomously activate DILP8, a Drosophila insulin-like peptide, to communicate abnormal growth and postpone maturation. DILP8 delays metamorphosis by inhibiting ecdysone biosynthesis, slowing growth in the imaginal discs, and generating normal-sized animals. Loss of dilp8 yields asymmetric individuals with an unusually large variation in size and a more varied time of maturation. Thus, DILP8 is a fundamental element of the hitherto ill-defined machinery governing the plasticity that ensures developmental stability and robustness.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garelli, Andres -- Gontijo, Alisson M -- Miguela, Veronica -- Caparros, Esther -- Dominguez, Maria -- New York, N.Y. -- Science. 2012 May 4;336(6081):579-82. doi: 10.1126/science.1216735.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Instituto de Neurociencias, Consejo Superior de Investigaciones Cientificas-Universidad Miguel Hernandez de Elche, Sant Joan d'Alacant, 03550 Alicante, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22556250" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Apoptosis ; Drosophila Proteins/chemistry/*genetics/*metabolism ; Drosophila melanogaster/*genetics/*growth & development/metabolism ; Ecdysone/biosynthesis ; Ethyl Methanesulfonate/pharmacology ; Gene Expression Regulation, Developmental ; Genes, Insect ; Imaginal Discs/growth & development/*physiology ; Intercellular Signaling Peptides and Proteins/chemistry/*genetics/metabolism ; Intracellular Signaling Peptides and Proteins/genetics/metabolism ; Larva/growth & development ; *Metamorphosis, Biological/genetics ; Molecular Sequence Data ; Neoplasms, Experimental/genetics/metabolism/pathology ; Peptide Initiation Factors/genetics/metabolism ; Pupa/growth & development ; Regeneration
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    Metagenome mining reveals polytheonamides as posttranslationally modified ribosomal peptides (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-18
    Description: It is held as a paradigm that ribosomally synthesized peptides and proteins contain only l-amino acids. We demonstrate a ribosomal origin of the marine sponge-derived polytheonamides, exceptionally potent, giant natural-product toxins. Isolation of the biosynthetic genes from the sponge metagenome revealed a bacterial gene architecture. Only six candidate enzymes were identified for 48 posttranslational modifications, including 18 epimerizations and 17 methylations of nonactivated carbon centers. Three enzymes were functionally validated, which showed that a radical S-adenosylmethionine enzyme is responsible for the unidirectional epimerization of multiple and different amino acids. Collectively, these complex alterations create toxins that function as unimolecular minimalistic ion channels with near-femtomolar activity. This study broadens the biosynthetic scope of ribosomal systems and creates new opportunities for peptide and protein bioengineering.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freeman, Michael F -- Gurgui, Cristian -- Helf, Maximilian J -- Morinaka, Brandon I -- Uria, Agustinus R -- Oldham, Neil J -- Sahl, Hans-Georg -- Matsunaga, Shigeki -- Piel, Jorn -- New York, N.Y. -- Science. 2012 Oct 19;338(6105):387-90. doi: 10.1126/science.1226121. Epub 2012 Sep 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Kekule Institute of Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22983711" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Ion Channels/biosynthesis/*metabolism ; Marine Toxins/biosynthesis/*metabolism ; *Metagenome ; Methylation ; Molecular Sequence Data ; Protein Biosynthesis ; *Protein Processing, Post-Translational ; Proteins/*metabolism ; Ribosomes/metabolism ; S-Adenosylmethionine/metabolism ; Theonella/*microbiology
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    Oxytocin/vasopressin-related peptides have an ancient role in reproductive behavior (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-01
    Description: Many biological functions are conserved, but the extent to which conservation applies to integrative behaviors is unknown. Vasopressin and oxytocin neuropeptides are strongly implicated in mammalian reproductive and social behaviors, yet rodent loss-of-function mutants have relatively subtle behavioral defects. Here we identify an oxytocin/vasopressin-like signaling system in Caenorhabditis elegans, consisting of a peptide and two receptors that are expressed in sexually dimorphic patterns. Males lacking the peptide or its receptors perform poorly in reproductive behaviors, including mate search, mate recognition, and mating, but other sensorimotor behaviors are intact. Quantitative analysis indicates that mating motor patterns are fragmented and inefficient in mutants, suggesting that oxytocin/vasopressin peptides increase the coherence of mating behaviors. These results indicate that conserved molecules coordinate diverse behavioral motifs in reproductive behavior.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3597094/" 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/PMC3597094/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garrison, Jennifer L -- Macosko, Evan Z -- Bernstein, Samantha -- Pokala, Navin -- Albrecht, Dirk R -- Bargmann, Cornelia I -- GM07739/GM/NIGMS NIH HHS/ -- K99 GM092859/GM/NIGMS NIH HHS/ -- K99GM092859/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):540-3. doi: 10.1126/science.1226201.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Lulu and Anthony Wang Laboratory of Neural Circuits and Behavior, The Rockefeller University, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23112335" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Biological Evolution ; CHO Cells ; Caenorhabditis elegans/genetics/*physiology ; Caenorhabditis elegans ; Proteins/agonists/chemistry/genetics/pharmacology/*physiology ; Cricetinae ; Humans ; Male ; Neuropeptides/chemistry/genetics/pharmacology/*physiology ; Oxytocin/chemistry/genetics/pharmacology/*physiology ; Receptors, G-Protein-Coupled/agonists/genetics/*physiology ; Reproduction ; Sexual Behavior, Animal/*physiology ; Vasopressins/chemistry/genetics/pharmacology/*physiology
    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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    Ecology. When paths to cooperation converge (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-09-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sherratt, Thomas N -- Roberts, Gilbert -- New York, N.Y. -- Science. 2012 Sep 14;337(6100):1304-5. doi: 10.1126/science.1226328.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Carleton University, Ottawa, ON K1S 5B6, Canada. tom_sherratt@carleton.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22984060" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; *Biological Evolution ; *Cooperative Behavior ; Female ; Male ; Sexual Behavior, Animal
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  • 41
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    Bilaterian burrows and grazing behavior at 〉585 million years ago (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-30
    Description: Based on molecular clocks and biomarker studies, it is possible that bilaterian life emerged early in the Ediacaran, but at present, no fossils or trace fossils from this time have been reported. Here we report the discovery of the oldest bilaterian burrows in shallow-water glaciomarine sediments from the Tacuari Formation, Uruguay. Uranium-lead dating of zircons in cross-cutting granite dykes constrains the age of these burrows to be at least 585 million years old. Their features indicate infaunal grazing activity by early eumetazoans. Active backfill within the burrow, an ability to wander upward and downward to exploit shallowly situated sedimentary laminae, and sinuous meandering suggest advanced behavioral adaptations. These findings unite the paleontological and molecular data pertaining to the evolution of bilaterians, and link bilaterian origins to the environmental changes that took place during the Neoproterozoic glaciations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pecoits, Ernesto -- Konhauser, Kurt O -- Aubet, Natalie R -- Heaman, Larry M -- Veroslavsky, Gerardo -- Stern, Richard A -- Gingras, Murray K -- New York, N.Y. -- Science. 2012 Jun 29;336(6089):1693-6. doi: 10.1126/science.1216295.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta T6G 2E3, Canada. epecoits@ualberta.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22745427" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Body Patterning ; *Fossils ; Geologic Sediments ; Silicates ; Time ; Uruguay ; Zirconium
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    An exon splice enhancer primes IGF2:IGF2R binding site structure and function evolution (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-12-01
    Description: Placental development and genomic imprinting coevolved with parental conflict over resource distribution to mammalian offspring. The imprinted genes IGF2 and IGF2R code for the growth promoter insulin-like growth factor 2 (IGF2) and its inhibitor, mannose 6-phosphate (M6P)/IGF2 receptor (IGF2R), respectively. M6P/IGF2R of birds and fish do not recognize IGF2. In monotremes, which lack imprinting, IGF2 specifically bound M6P/IGF2R via a hydrophobic CD loop. We show that the DNA coding the CD loop in monotremes functions as an exon splice enhancer (ESE) and that structural evolution of binding site loops (AB, HI, FG) improved therian IGF2 affinity. We propose that ESE evolution led to the fortuitous acquisition of IGF2 binding by M6P/IGF2R that drew IGF2R into parental conflict; subsequent imprinting may then have accelerated affinity maturation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4658703/" 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/PMC4658703/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, Christopher -- Hoppe, Hans-Jurgen -- Rezgui, Dellel -- Strickland, Madeleine -- Forbes, Briony E -- Grutzner, Frank -- Frago, Susana -- Ellis, Rosamund Z -- Wattana-Amorn, Pakorn -- Prince, Stuart N -- Zaccheo, Oliver J -- Nolan, Catherine M -- Mungall, Andrew J -- Jones, E Yvonne -- Crump, Matthew P -- Hassan, A Bassim -- 082352/Wellcome Trust/United Kingdom -- 090532/Wellcome Trust/United Kingdom -- 9891/Cancer Research UK/United Kingdom -- A13295/Cancer Research UK/United Kingdom -- A9891/Cancer Research UK/United Kingdom -- C375/Cancer Research UK/United Kingdom -- C429/Cancer Research UK/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2012 Nov 30;338(6111):1209-13. doi: 10.1126/science.1228633.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organic and Biological Chemistry, School of Chemistry, University of Bristol, Bristol BS8 1TS, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23197533" target="_blank"〉PubMed〈/a〉
    Keywords: *Alternative Splicing ; Amino Acid Sequence ; Animals ; Binding Sites/genetics ; Conserved Sequence ; Enhancer Elements, Genetic/*genetics ; *Evolution, Molecular ; *Exons ; Genomic Imprinting ; Humans ; Insulin-Like Growth Factor II/*chemistry/classification/genetics ; Molecular Sequence Data ; Phylogeny ; Protein Structure, Tertiary ; Receptor, IGF Type 2/*chemistry/classification/genetics ; Species Specificity
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    Vasopressin/oxytocin-related signaling regulates gustatory associative learning in C. elegans (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-11-01
    Description: Vasopressin- and oxytocin-related neuropeptides are key regulators of animal physiology, including water balance and reproduction. Although these neuropeptides also modulate social behavior and cognition in mammals, the mechanism for influencing behavioral plasticity and the evolutionary origin of these effects are not well understood. Here, we present a functional vasopressin- and oxytocin-like signaling system in the nematode Caenorhabditis elegans. Through activation of its receptor NTR-1, a vasopressin/oxytocin-related neuropeptide, designated nematocin, facilitates the experience-driven modulation of salt chemotaxis, a type of gustatory associative learning in C. elegans. Our study suggests that vasopressin and oxytocin neuropeptides have ancient roles in modulating sensory processing in neural circuits that underlie behavioral plasticity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beets, Isabel -- Janssen, Tom -- Meelkop, Ellen -- Temmerman, Liesbet -- Suetens, Nick -- Rademakers, Suzanne -- Jansen, Gert -- Schoofs, Liliane -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):543-5. doi: 10.1126/science.1226860.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Functional Genomics and Proteomics Unit, KU Leuven, 3000 Leuven, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23112336" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Biological Evolution ; Caenorhabditis elegans/genetics/*physiology ; Caenorhabditis elegans ; Proteins/agonists/chemistry/genetics/metabolism/pharmacology/*physiology ; Learning/drug effects/*physiology ; Male ; Molecular Sequence Data ; Neuropeptides/chemistry/genetics/pharmacology/*physiology ; Oxytocin/chemistry/genetics/pharmacology/*physiology ; Receptors, G-Protein-Coupled/agonists/genetics/metabolism/*physiology ; Signal Transduction ; Taste/drug effects/*physiology ; Vasopressins/chemistry/genetics/pharmacology/*physiology
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    The structure and catalytic cycle of a sodium-pumping pyrophosphatase (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-07-28
    Description: Membrane-integral pyrophosphatases (M-PPases) are crucial for the survival of plants, bacteria, and protozoan parasites. They couple pyrophosphate hydrolysis or synthesis to Na(+) or H(+) pumping. The 2.6-angstrom structure of Thermotoga maritima M-PPase in the resting state reveals a previously unknown solution for ion pumping. The hydrolytic center, 20 angstroms above the membrane, is coupled to the gate formed by the conserved Asp(243), Glu(246), and Lys(707) by an unusual "coupling funnel" of six alpha helices. Comparison with our 4.0-angstrom resolution structure of the product complex suggests that helix 12 slides down upon substrate binding to open the gate by a simple binding-change mechanism. Below the gate, four helices form the exit channel. Superimposing helices 3 to 6, 9 to 12, and 13 to 16 suggests that M-PPases arose through gene triplication.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kellosalo, Juho -- Kajander, Tommi -- Kogan, Konstantin -- Pokharel, Kisun -- Goldman, Adrian -- New York, N.Y. -- Science. 2012 Jul 27;337(6093):473-6. doi: 10.1126/science.1222505.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Structural Biology and Biophysics Program, Institute of Biotechnology, Post Office Box 65, University of Helsinki, FIN-00014, Finland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22837527" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Proteins/chemistry/genetics/metabolism ; Biocatalysis ; Calcium/chemistry ; Catalytic Domain ; Cell Membrane/enzymology ; Crystallography, X-Ray ; Diphosphates/*metabolism ; Hydrolysis ; Hydrophobic and Hydrophilic Interactions ; Ion Channel Gating ; Magnesium/chemistry ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Protein Conformation ; Protein Multimerization ; Protein Structure, Secondary ; Pyrophosphatases/*chemistry/genetics/*metabolism ; Sodium/*metabolism ; Sodium-Potassium-Exchanging ATPase/*chemistry/genetics/metabolism ; Thermotoga maritima/*enzymology
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    Evolutionary trade-offs, Pareto optimality, and the geometry of phenotype space (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-04-28
    Description: Biological systems that perform multiple tasks face a fundamental trade-off: A given phenotype cannot be optimal at all tasks. Here we ask how trade-offs affect the range of phenotypes found in nature. Using the Pareto front concept from economics and engineering, we find that best-trade-off phenotypes are weighted averages of archetypes--phenotypes specialized for single tasks. For two tasks, phenotypes fall on the line connecting the two archetypes, which could explain linear trait correlations, allometric relationships, as well as bacterial gene-expression patterns. For three tasks, phenotypes fall within a triangle in phenotype space, whose vertices are the archetypes, as evident in morphological studies, including on Darwin's finches. Tasks can be inferred from measured phenotypes based on the behavior of organisms nearest the archetypes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shoval, O -- Sheftel, H -- Shinar, G -- Hart, Y -- Ramote, O -- Mayo, A -- Dekel, E -- Kavanagh, K -- Alon, U -- New York, N.Y. -- Science. 2012 Jun 1;336(6085):1157-60. doi: 10.1126/science.1217405. Epub 2012 Apr 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22539553" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Beak/anatomy & histology ; *Biological Evolution ; Body Size ; Escherichia coli/genetics/growth & development/metabolism ; Finches/anatomy & histology ; Gene Expression ; *Genetic Fitness ; Models, Biological ; Models, Statistical ; *Phenotype ; Selection, Genetic
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    Natural variation in a chloride channel subunit confers avermectin resistance in C. elegans (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-02-04
    Description: Resistance of nematodes to anthelmintics such as avermectins has emerged as a major global health and agricultural problem, but genes conferring natural resistance to avermectins are unknown. We show that a naturally occurring four-amino-acid deletion in the ligand-binding domain of GLC-1, the alpha-subunit of a glutamate-gated chloride channel, confers resistance to avermectins in the model nematode Caenorhabditis elegans. We also find that the same variant confers resistance to the avermectin-producing bacterium Streptomyces avermitilis. Population-genetic analyses identified two highly divergent haplotypes at the glc-1 locus that have been maintained at intermediate frequencies by long-term balancing selection. These results implicate variation in glutamate-gated chloride channels in avermectin resistance and provide a mechanism by which such resistance can be maintained.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3273849/" 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/PMC3273849/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ghosh, Rajarshi -- Andersen, Erik C -- Shapiro, Joshua A -- Gerke, Justin P -- Kruglyak, Leonid -- P50-GM071508/GM/NIGMS NIH HHS/ -- R01 HG004321/HG/NHGRI NIH HHS/ -- R01 HG004321-03/HG/NHGRI NIH HHS/ -- R01-HG004321/HG/NHGRI NIH HHS/ -- R37- MH59520/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Feb 3;335(6068):574-8. doi: 10.1126/science.1214318.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lewis-Sigler Institute for Integrative Genomics, Department of Ecology and Evolutionary Biology, and Howard Hughes Medical Institute, Princeton University, Princeton, NJ 08544, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22301316" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Animals, Genetically Modified ; Antinematodal Agents/*pharmacology ; Caenorhabditis elegans/*drug effects/*genetics/physiology ; Caenorhabditis elegans Proteins/chemistry/*genetics/metabolism ; Chloride Channels/chemistry/*genetics/metabolism ; Crosses, Genetic ; Drug Resistance/genetics ; Genes, Helminth ; Genome-Wide Association Study ; Ivermectin/*analogs & derivatives/*pharmacology ; Ligands ; Molecular Sequence Data ; Mutation ; Polymorphism, Single Nucleotide ; Protein Structure, Tertiary ; Quantitative Trait Loci ; Selection, Genetic ; Streptomyces/physiology
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    Ecology and evolution. Eco-evo effects up and down the food chain (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-08-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2012 Aug 24;337(6097):906-7. doi: 10.1126/science.337.6097.906.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22923558" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atlantic Ocean ; *Biological Evolution ; *Daphnia/genetics/physiology ; *Ecosystem ; *Fishes/anatomy & histology/genetics/physiology ; *Food Chain ; Lakes ; Phytoplankton ; Rivers ; Zooplankton
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    Copy number variation of multiple genes at Rhg1 mediates nematode resistance in soybean (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-10-16
    Description: The rhg1-b allele of soybean is widely used for resistance against soybean cyst nematode (SCN), the most economically damaging pathogen of soybeans in the United States. Gene silencing showed that genes in a 31-kilobase segment at rhg1-b, encoding an amino acid transporter, an alpha-SNAP protein, and a WI12 (wound-inducible domain) protein, each contribute to resistance. There is one copy of the 31-kilobase segment per haploid genome in susceptible varieties, but 10 tandem copies are present in an rhg1-b haplotype. Overexpression of the individual genes in roots was ineffective, but overexpression of the genes together conferred enhanced SCN resistance. Hence, SCN resistance mediated by the soybean quantitative trait locus Rhg1 is conferred by copy number variation that increases the expression of a set of dissimilar genes in a repeated multigene segment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cook, David E -- Lee, Tong Geon -- Guo, Xiaoli -- Melito, Sara -- Wang, Kai -- Bayless, Adam M -- Wang, Jianping -- Hughes, Teresa J -- Willis, David K -- Clemente, Thomas E -- Diers, Brian W -- Jiang, Jiming -- Hudson, Matthew E -- Bent, Andrew F -- New York, N.Y. -- Science. 2012 Nov 30;338(6111):1206-9. doi: 10.1126/science.1228746. Epub 2012 Oct 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology, University of Wisconsin, Madison, WI 53706, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23065905" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Animals ; *Gene Dosage ; Gene Expression Regulation, Plant ; *Genetic Loci ; Genetic Variation ; Haplotypes ; Male ; Molecular Sequence Data ; Plant Diseases/*genetics/*parasitology ; Plant Proteins/*genetics ; Plant Roots/genetics/parasitology ; Protein Structure, Tertiary/genetics ; Soluble N-Ethylmaleimide-Sensitive Factor Attachment Proteins/genetics ; Soybeans/*genetics/*parasitology ; *Tylenchoidea
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    Ecology and evolution. The great guppy experiment (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-08-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2012 Aug 24;337(6097):904-8. doi: 10.1126/science.337.6097.904.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22923557" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Ecosystem ; *Environment ; Female ; Invertebrates ; Male ; *Poecilia/anatomy & histology/genetics/physiology ; Population Dynamics ; Population Growth ; Predatory Behavior ; Reproduction ; *Rivers ; Selection, Genetic ; Trinidad and Tobago
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    Joint Congress on Evolutionary Biology. By the skin of their teeth (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-07-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2012 Jul 27;337(6093):409. doi: 10.1126/science.337.6093.409.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22837507" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Catfishes/*anatomy & histology/physiology ; *Caves ; Ecuador ; Lateral Line System/anatomy & histology ; Nervous System/anatomy & histology ; *Rivers ; Skin/*anatomy & histology ; Swimming ; Tooth/*anatomy & histology ; Water Movements
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    Evolutionary biology. An evolutionary theory of dentistry (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, Ann -- New York, N.Y. -- Science. 2012 May 25;336(6084):973-5. doi: 10.1126/science.336.6084.973.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22628631" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; *Biological Evolution ; *Diet ; Fossils ; *Gingival Diseases/epidemiology/etiology/history ; History, 19th Century ; History, 20th Century ; History, 21st Century ; History, Ancient ; Humans ; *Jaw Diseases/epidemiology/etiology/history ; *Tooth Diseases/epidemiology/etiology/history
    Print ISSN: 0036-8075
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    Joint Congress on Evolutionary Biology. Texas wildflower's red keeps it a species (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-07-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2012 Jul 27;337(6093):408-9. doi: 10.1126/science.337.6093.408-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22837506" target="_blank"〉PubMed〈/a〉
    Keywords: Angiosperms/*genetics/physiology ; *Biological Evolution ; Flowers/*genetics ; *Genetic Speciation ; *Hybridization, Genetic ; Pigmentation/*genetics ; Pollination ; Texas
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  • 53
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    iRhom2 regulation of TACE controls TNF-mediated protection against Listeria and responses to LPS (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-17
    Description: Innate immune responses are vital for pathogen defense but can result in septic shock when excessive. A key mediator of septic shock is tumor necrosis factor-alpha (TNFalpha), which is shed from the plasma membrane after cleavage by the TNFalpha convertase (TACE). We report that the rhomboid family member iRhom2 interacted with TACE and regulated TNFalpha shedding. iRhom2 was critical for TACE maturation and trafficking to the cell surface in hematopoietic cells. Gene-targeted iRhom2-deficient mice showed reduced serum TNFalpha in response to lipopolysaccharide (LPS) and could survive a lethal LPS dose. Furthermore, iRhom2-deficient mice failed to control the replication of Listeria monocytogenes. Our study has identified iRhom2 as a regulator of innate immunity that may be an important target for modulating sepsis and pathogen defense.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4250273/" 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/PMC4250273/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McIlwain, David R -- Lang, Philipp A -- Maretzky, Thorsten -- Hamada, Koichi -- Ohishi, Kazuhito -- Maney, Sathish Kumar -- Berger, Thorsten -- Murthy, Aditya -- Duncan, Gordon -- Xu, Haifeng C -- Lang, Karl S -- Haussinger, Dieter -- Wakeham, Andrew -- Itie-Youten, Annick -- Khokha, Rama -- Ohashi, Pamela S -- Blobel, Carl P -- Mak, Tak W -- GM64750/GM/NIGMS NIH HHS/ -- R01 GM064750/GM/NIGMS NIH HHS/ -- Canadian Institutes of Health Research/Canada -- New York, N.Y. -- Science. 2012 Jan 13;335(6065):229-32. doi: 10.1126/science.1214448.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Campell Family Institute for Breast Cancer Research, Ontario Cancer Institute, University Health Network (UHN), 620 University Avenue, Toronto, Ontario M5G 2C1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22246778" target="_blank"〉PubMed〈/a〉
    Keywords: ADAM Proteins/genetics/*metabolism ; Amino Acid Sequence ; Animals ; B-Lymphocytes/immunology/metabolism ; Base Sequence ; Carrier Proteins/chemistry/genetics/*metabolism ; Cell Line ; Cell Membrane/metabolism ; Gene Deletion ; *Immunity, Innate ; Lipopolysaccharides/*immunology ; Listeria monocytogenes/immunology/physiology ; Listeriosis/*immunology/metabolism/microbiology/pathology ; Macrophages/immunology/metabolism ; Macrophages, Peritoneal/immunology/metabolism/microbiology ; Mice ; Molecular Sequence Data ; Protein Transport ; Shock, Septic/*immunology/metabolism ; Spleen/cytology ; Tumor Necrosis Factor-alpha/blood/genetics/*metabolism
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    Australopithecus afarensis scapular ontogeny, function, and the role of climbing in human evolution (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-01
    Description: Scapular morphology is predictive of locomotor adaptations among primates, but this skeletal element is scarce in the hominin fossil record. Notably, both scapulae of the juvenile Australopithecus afarensis skeleton from Dikika, Ethiopia, have been recovered. These scapulae display several traits characteristic of suspensory apes, as do the few known fragmentary adult australopith representatives. Many of these traits change significantly throughout modern human ontogeny, but remain stable in apes. Thus, the similarity of juvenile and adult fossil morphologies implies that A. afarensis development was apelike. Additionally, changes in other scapular traits throughout African ape development are associated with shifts in locomotor behavior. This affirms the functional relevance of those characteristics, and their presence in australopith fossils supports the hypothesis that their locomotor repertoire included a substantial amount of climbing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Green, David J -- Alemseged, Zeresenay -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):514-7. doi: 10.1126/science.1227123.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy, Midwestern University, Downers Grove, IL 60515, USA. dgreen1@midwestern.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23112331" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; Animals ; Anthropology ; *Biological Evolution ; Hominidae/*anatomy & histology/physiology ; Humans ; *Locomotion ; Scapula/*anatomy & histology/physiology
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    Evolution. Some like it hot (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, Felisa A -- New York, N.Y. -- Science. 2012 Feb 24;335(6071):924-5. doi: 10.1126/science.1219233.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA. fasmith@unm.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22362994" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Climate Change ; Equidae/*anatomy & histology ; *Fossils ; Horses/*anatomy & histology
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    Catalysis and sulfa drug resistance in dihydropteroate synthase (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-03-03
    Description: The sulfonamide antibiotics inhibit dihydropteroate synthase (DHPS), a key enzyme in the folate pathway of bacteria and primitive eukaryotes. However, resistance mutations have severely compromised the usefulness of these drugs. We report structural, computational, and mutagenesis studies on the catalytic and resistance mechanisms of DHPS. By performing the enzyme-catalyzed reaction in crystalline DHPS, we have structurally characterized key intermediates along the reaction pathway. Results support an S(N)1 reaction mechanism via formation of a novel cationic pterin intermediate. We also show that two conserved loops generate a substructure during catalysis that creates a specific binding pocket for p-aminobenzoic acid, one of the two DHPS substrates. This substructure, together with the pterin-binding pocket, explains the roles of the conserved active-site residues and reveals how sulfonamide resistance arises.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3531234/" 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/PMC3531234/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yun, Mi-Kyung -- Wu, Yinan -- Li, Zhenmei -- Zhao, Ying -- Waddell, M Brett -- Ferreira, Antonio M -- Lee, Richard E -- Bashford, Donald -- White, Stephen W -- AI070721/AI/NIAID NIH HHS/ -- CA21765/CA/NCI NIH HHS/ -- P30 CA021765/CA/NCI NIH HHS/ -- R01 AI070721/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2012 Mar 2;335(6072):1110-4. doi: 10.1126/science.1214641.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22383850" target="_blank"〉PubMed〈/a〉
    Keywords: 4-Aminobenzoic Acid/chemistry/metabolism ; Amino Acid Sequence ; Anti-Bacterial Agents/chemistry/metabolism/*pharmacology ; Bacillus anthracis/drug effects/enzymology ; Biocatalysis ; Catalytic Domain ; Crystallization ; Crystallography, X-Ray ; Dihydropteroate Synthase/*chemistry/genetics/*metabolism ; Diphosphates/chemistry/metabolism ; *Drug Resistance, Bacterial ; Magnesium/chemistry ; Models, Chemical ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis ; Parabens/chemistry/metabolism ; Protein Conformation ; Sulfamethoxazole/chemistry/metabolism/*pharmacology ; Sulfathiazoles/chemistry/metabolism/*pharmacology ; Yersinia pestis/drug effects/enzymology
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    A mutation in EGF repeat-8 of Notch discriminates between Serrate/Jagged and Delta family ligands (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-12-01
    Description: Notch signaling affects many developmental and cellular processes and has been implicated in congenital disorders, stroke, and numerous cancers. The Notch receptor binds its ligands Delta and Serrate and is able to discriminate between them in different contexts. However, the specific domains in Notch responsible for this selectivity are poorly defined. Through genetic screens in Drosophila, we isolated a mutation, Notch(jigsaw), that affects Serrate- but not Delta-dependent signaling. Notch(jigsaw) carries a missense mutation in epidermal growth factor repeat-8 (EGFr-8) and is defective in Serrate binding. A homologous point mutation in mammalian Notch2 also exhibits defects in signaling of a mammalian Serrate homolog, Jagged1. Hence, an evolutionarily conserved valine in EGFr-8 is essential for ligand selectivity and provides a molecular handle to study numerous Notch-dependent signaling events.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3663443/" 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/PMC3663443/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamamoto, Shinya -- Charng, Wu-Lin -- Rana, Nadia A -- Kakuda, Shinako -- Jaiswal, Manish -- Bayat, Vafa -- Xiong, Bo -- Zhang, Ke -- Sandoval, Hector -- David, Gabriela -- Wang, Hao -- Haltiwanger, Robert S -- Bellen, Hugo J -- 1RC4GM096355-01/GM/NIGMS NIH HHS/ -- 5K12GM084897/GM/NIGMS NIH HHS/ -- 5P30HD024064/HD/NICHD NIH HHS/ -- 5R01GM061126-12/GM/NIGMS NIH HHS/ -- 5R01GM067858/GM/NIGMS NIH HHS/ -- 5T32-HD055200/HD/NICHD NIH HHS/ -- K12 GM084897/GM/NIGMS NIH HHS/ -- P30 HD024064/HD/NICHD NIH HHS/ -- R01 GM061126/GM/NIGMS NIH HHS/ -- R01 GM067858/GM/NIGMS NIH HHS/ -- RC4 GM096355/GM/NIGMS NIH HHS/ -- T32 HD055200/HD/NICHD NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Nov 30;338(6111):1229-32. doi: 10.1126/science.1228745.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23197537" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Calcium-Binding Proteins/*metabolism ; Cells, Cultured ; DNA Mutational Analysis ; Drosophila Proteins/*genetics/*metabolism ; Drosophila melanogaster/genetics/*metabolism ; Epidermal Growth Factor/genetics ; Evolution, Molecular ; Humans ; Intercellular Signaling Peptides and Proteins/*metabolism ; Intracellular Signaling Peptides and Proteins/*metabolism ; Ligands ; Male ; Membrane Proteins/*metabolism ; Methionine/genetics ; Molecular Sequence Data ; Mutation ; Receptor, Notch2/genetics/metabolism ; Receptors, Notch/*genetics/*metabolism ; Tandem Repeat Sequences/genetics ; Valine/genetics ; X Chromosome/genetics
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    Botulinum neurotoxin is shielded by NTNHA in an interlocked complex (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-01
    Description: Botulinum neurotoxins (BoNTs) are highly poisonous substances that are also effective medicines. Accidental BoNT poisoning often occurs through ingestion of Clostridium botulinum-contaminated food. Here, we present the crystal structure of a BoNT in complex with a clostridial nontoxic nonhemagglutinin (NTNHA) protein at 2.7 angstroms. Biochemical and functional studies show that NTNHA provides large and multivalent binding interfaces to protect BoNT from gastrointestinal degradation. Moreover, the structure highlights key residues in BoNT that regulate complex assembly in a pH-dependent manner. Collectively, our findings define the molecular mechanisms by which NTNHA shields BoNT in the hostile gastrointestinal environment and releases it upon entry into the circulation. These results will assist in the design of small molecules for inhibiting oral BoNT intoxication and of delivery vehicles for oral administration of biologics.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3545708/" 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/PMC3545708/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gu, Shenyan -- Rumpel, Sophie -- Zhou, Jie -- Strotmeier, Jasmin -- Bigalke, Hans -- Perry, Kay -- Shoemaker, Charles B -- Rummel, Andreas -- Jin, Rongsheng -- R01 AI091823/AI/NIAID NIH HHS/ -- U54 AI057159/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2012 Feb 24;335(6071):977-81. doi: 10.1126/science.1214270.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Neuroscience, Aging and Stem Cell Research, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22363010" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Proteins/*chemistry/metabolism ; Binding Sites ; Botulinum Toxins, Type A/*chemistry/metabolism ; Crystallography, X-Ray ; Hydrogen-Ion Concentration ; Models, Molecular ; Molecular Sequence Data ; Multiprotein Complexes/chemistry/metabolism ; Mutagenesis ; Protein Binding ; Protein Conformation ; Protein Interaction Domains and Motifs ; Protein Structure, Secondary
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    Feathered non-avian dinosaurs from North America provide insight into wing origins (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-11-01
    Description: Previously described feathered dinosaurs reveal a fascinating record of feather evolution, although substantial phylogenetic gaps remain. Here we report the occurrence of feathers in ornithomimosaurs, a clade of non-maniraptoran theropods for which fossilized feathers were previously unknown. The Ornithomimus specimens, recovered from Upper Cretaceous deposits of Alberta, Canada, provide new insights into dinosaur plumage and the origin of the avian wing. Individuals from different growth stages reveal the presence of a filamentous feather covering throughout life and winglike structures on the forelimbs of adults. The appearance of winglike structures in older animals indicates that they may have evolved in association with reproductive behaviors. These specimens show that primordial wings originated earlier than previously thought, among non-maniraptoran theropods.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zelenitsky, Darla K -- Therrien, Francois -- Erickson, Gregory M -- DeBuhr, Christopher L -- Kobayashi, Yoshitsugu -- Eberth, David A -- Hadfield, Frank -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):510-4. doi: 10.1126/science.1225376.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geoscience, University of Calgary, Calgary, Alberta T2N 1N4, Canada. dkzeleni@ucalgary.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23112330" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Dinosaurs/*anatomy & histology/*classification ; Feathers/*anatomy & histology ; North America ; Phylogeny ; Wings, Animal/*anatomy & histology
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    Genetic and molecular basis of drug resistance and species-specific drug action in schistosome parasites (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-11-23
    Description: Oxamniquine resistance evolved in the human blood fluke (Schistosoma mansoni) in Brazil in the 1970s. We crossed parental parasites differing ~500-fold in drug response, determined drug sensitivity and marker segregation in clonally derived second-generation progeny, and identified a single quantitative trait locus (logarithm of odds = 31) on chromosome 6. A sulfotransferase was identified as the causative gene by using RNA interference knockdown and biochemical complementation assays, and we subsequently demonstrated independent origins of loss-of-function mutations in field-derived and laboratory-selected resistant parasites. These results demonstrate the utility of linkage mapping in a human helminth parasite, while crystallographic analyses of protein-drug interactions illuminate the mode of drug action and provide a framework for rational design of oxamniquine derivatives that kill both S. mansoni and S. haematobium, the two species responsible for 〉99% of schistosomiasis cases worldwide.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4136436/" 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/PMC4136436/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Valentim, Claudia L L -- Cioli, Donato -- Chevalier, Frederic D -- Cao, Xiaohang -- Taylor, Alexander B -- Holloway, Stephen P -- Pica-Mattoccia, Livia -- Guidi, Alessandra -- Basso, Annalisa -- Tsai, Isheng J -- Berriman, Matthew -- Carvalho-Queiroz, Claudia -- Almeida, Marcio -- Aguilar, Hector -- Frantz, Doug E -- Hart, P John -- LoVerde, Philip T -- Anderson, Timothy J C -- 098051/Wellcome Trust/United Kingdom -- 5R21-AI072704/AI/NIAID NIH HHS/ -- 5R21-AI096277/AI/NIAID NIH HHS/ -- C06 RR013556/RR/NCRR NIH HHS/ -- HHSN272201000005I/PHS HHS/ -- R01 AI097576/AI/NIAID NIH HHS/ -- R01-AI097576/AI/NIAID NIH HHS/ -- R21 AI072704/AI/NIAID NIH HHS/ -- R21 AI096277/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2013 Dec 13;342(6164):1385-9. doi: 10.1126/science.1243106. Epub 2013 Nov 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Biochemistry and Pathology, University of Texas Health Science Center, San Antonio, TX 78229, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24263136" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Drug Resistance/*genetics ; Gene Knockdown Techniques ; Genetic Linkage ; Helminth Proteins/*genetics ; Humans ; Molecular Sequence Data ; Mutation ; Oxamniquine/*pharmacology ; Phylogeny ; Protein Conformation ; Quantitative Trait Loci ; RNA Interference ; Schistosoma mansoni/*drug effects/*genetics ; Schistosomicides/*pharmacology ; Sulfotransferases/chemistry/classification/*genetics
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    Stepwise evolution of essential centromere function in a Drosophila neogene (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-06-08
    Description: Evolutionarily young genes that serve essential functions represent a paradox; they must perform a function that either was not required until after their birth or was redundant with another gene. How young genes rapidly acquire essential function is largely unknown. We traced the evolutionary steps by which the Drosophila gene Umbrea acquired an essential role in chromosome segregation in D. melanogaster since the gene's origin less than 15 million years ago. Umbrea neofunctionalization occurred via loss of an ancestral heterochromatin-localizing domain, followed by alterations that rewired its protein interaction network and led to species-specific centromere localization. Our evolutionary cell biology approach provides temporal and mechanistic detail about how young genes gain essential function. Such innovations may constantly alter the repertoire of centromeric proteins in eukaryotes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4119826/" 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/PMC4119826/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ross, Benjamin D -- Rosin, Leah -- Thomae, Andreas W -- Hiatt, Mary Alice -- Vermaak, Danielle -- de la Cruz, Aida Flor A -- Imhof, Axel -- Mellone, Barbara G -- Malik, Harmit S -- R01 GM074108/GM/NIGMS NIH HHS/ -- R01GM074108/GM/NIGMS NIH HHS/ -- T32HG000035/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Jun 7;340(6137):1211-4. doi: 10.1126/science.1234393.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23744945" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Centromere/genetics/*physiology ; Chromosomal Proteins, Non-Histone/*genetics ; Drosophila/*genetics ; Drosophila Proteins/*genetics ; *Evolution, Molecular ; Gene Duplication ; Genes, Insect/*physiology ; Molecular Sequence Data
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    FtsZ protofilaments use a hinge-opening mechanism for constrictive force generation (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-07-28
    Description: The essential bacterial protein FtsZ is a guanosine triphosphatase that self-assembles into a structure at the division site termed the "Z ring". During cytokinesis, the Z ring exerts a constrictive force on the membrane by using the chemical energy of guanosine triphosphate hydrolysis. However, the structural basis of this constriction remains unresolved. Here, we present the crystal structure of a guanosine diphosphate-bound Mycobacterium tuberculosis FtsZ protofilament, which exhibits a curved conformational state. The structure reveals a longitudinal interface that is important for function. The protofilament curvature highlights a hydrolysis-dependent conformational switch at the T3 loop that leads to longitudinal bending between subunits, which could generate sufficient force to drive cytokinesis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3816583/" 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/PMC3816583/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Ying -- Hsin, Jen -- Zhao, Lingyun -- Cheng, Yiwen -- Shang, Weina -- Huang, Kerwyn Casey -- Wang, Hong-Wei -- Ye, Sheng -- 1F32GM100677-01A1/GM/NIGMS NIH HHS/ -- DP2 OD006466/OD/NIH HHS/ -- DP2OD006466/OD/NIH HHS/ -- F32 GM100677/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Jul 26;341(6144):392-5. doi: 10.1126/science.1239248.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Life Sciences Institute, Zhejiang University, Hangzhou, 310058 Zhejiang, P.R. China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23888039" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Proteins/*chemistry/genetics/*metabolism ; Cell Membrane/physiology ; Crystallography, X-Ray ; *Cytokinesis ; Cytoskeletal Proteins/*chemistry/genetics/*metabolism ; Escherichia coli/chemistry ; Guanosine Diphosphate/chemistry/metabolism ; Guanosine Triphosphate/metabolism ; Hydrolysis ; Hydrophobic and Hydrophilic Interactions ; Models, Molecular ; Molecular Dynamics Simulation ; Molecular Sequence Data ; Mycobacterium tuberculosis/*chemistry/physiology ; Point Mutation ; Protein Conformation ; Protein Multimerization ; Protein Subunits/chemistry/metabolism ; Staphylococcus aureus/chemistry
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    Voltage-gated sodium channel in grasshopper mice defends against bark scorpion toxin (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-10-26
    Description: Painful venoms are used to deter predators. Pain itself, however, can signal damage and thus serves an important adaptive function. Evolution to reduce general pain responses, although valuable for preying on venomous species, is rare, likely because it comes with the risk of reduced response to tissue damage. Bark scorpions capitalize on the protective pain pathway of predators by inflicting intensely painful stings. However, grasshopper mice regularly attack and consume bark scorpions, grooming only briefly when stung. Bark scorpion venom induces pain in many mammals (house mice, rats, humans) by activating the voltage-gated Na(+) channel Nav1.7, but has no effect on Nav1.8. Grasshopper mice Nav1.8 has amino acid variants that bind bark scorpion toxins and inhibit Na(+) currents, blocking action potential propagation and inducing analgesia. Thus, grasshopper mice have solved the predator-pain problem by using a toxin bound to a nontarget channel to block transmission of the pain signals the venom itself is initiating.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4172297/" 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/PMC4172297/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rowe, Ashlee H -- Xiao, Yucheng -- Rowe, Matthew P -- Cummins, Theodore R -- Zakon, Harold H -- NS 053422/NS/NINDS NIH HHS/ -- R01 NS053422/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2013 Oct 25;342(6157):441-6. doi: 10.1126/science.1236451.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Neurobiology, The University of Texas at Austin, Austin, TX 78712, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24159039" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/drug effects/physiology ; Amino Acid Sequence ; Animals ; Arvicolinae/*metabolism ; *Food Chain ; Formaldehyde/pharmacology ; Mice ; Molecular Sequence Data ; NAV1.7 Voltage-Gated Sodium Channel/chemistry/genetics/*metabolism ; NAV1.8 Voltage-Gated Sodium Channel/chemistry/genetics/*metabolism ; Pain/chemically induced/*metabolism ; *Predatory Behavior ; Protein Structure, Tertiary ; Scorpion Venoms
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    Structure and allostery of the PKA RIIbeta tetrameric holoenzyme (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-02-11
    Description: In its physiological state, cyclic adenosine monophosphate (cAMP)-dependent protein kinase (PKA) is a tetramer that contains a regulatory (R) subunit dimer and two catalytic (C) subunits. We describe here the 2.3 angstrom structure of full-length tetrameric RIIbeta(2):C(2) holoenzyme. This structure showing a dimer of dimers provides a mechanistic understanding of allosteric activation by cAMP. The heterodimers are anchored together by an interface created by the beta4-beta5 loop in the RIIbeta subunit, which docks onto the carboxyl-terminal tail of the adjacent C subunit, thereby forcing the C subunit into a fully closed conformation in the absence of nucleotide. Diffusion of magnesium adenosine triphosphate (ATP) into these crystals trapped not ATP, but the reaction products, adenosine diphosphate and the phosphorylated RIIbeta subunit. This complex has implications for the dissociation-reassociation cycling of PKA. The quaternary structure of the RIIbeta tetramer differs appreciably from our model of the RIalpha tetramer, confirming the small-angle x-ray scattering prediction that the structures of each PKA tetramer are different.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3985767/" 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/PMC3985767/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Ping -- Smith-Nguyen, Eric V -- Keshwani, Malik M -- Deal, Michael S -- Kornev, Alexandr P -- Taylor, Susan S -- GM34921/GM/NIGMS NIH HHS/ -- R01 GM034921/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Feb 10;335(6069):712-6. doi: 10.1126/science.1213979.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of California, San Diego, La Jolla, CA 92093-0654, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22323819" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Allosteric Regulation ; Allosteric Site ; Amino Acid Sequence ; Animals ; Binding Sites ; Crystallization ; Crystallography, X-Ray ; Cyclic AMP/metabolism ; Cyclic AMP-Dependent Protein Kinase Catalytic Subunits/*chemistry/*metabolism ; Cyclic AMP-Dependent Protein Kinase RIIbeta Subunit/*chemistry/*metabolism ; Holoenzymes/chemistry/metabolism ; Hydrophobic and Hydrophilic Interactions ; Mice ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry/metabolism ; Protein Binding ; Protein Folding ; Protein Multimerization ; Protein Structure, Quaternary ; Protein Structure, Tertiary ; Rats
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    Ecology. The evolutionary allure of mussels (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-11-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stokstad, Erik -- New York, N.Y. -- Science. 2012 Nov 16;338(6109):877. doi: 10.1126/science.338.6109.877.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23161969" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Bivalvia/*genetics/*physiology ; Fishes ; Reproduction
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    The centrosome in cells and organisms (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-01-28
    Description: The centrosome acts as the main microtubule-nucleating organelle in animal cells and plays a critical role in mitotic spindle orientation and in genome stability. Yet, despite its central role in cell biology, the centrosome is not present in all multicellular organisms or in all cells of a given organism. The main outcome of centrosome reproduction is the transmission of polarity to daughter cells and, in most animal species, the sperm-donated centrosome defines embryo polarity. Here I will discuss the role of the centrosome in cell polarity, resulting from its ability to position the nucleus at the cell center, and discuss how centrosome innovation might have been critical during metazoan evolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bornens, Michel -- New York, N.Y. -- Science. 2012 Jan 27;335(6067):422-6. doi: 10.1126/science.1209037.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉UMR144 du Centre Nationale de la Recherche Scientifique, Institut Curie, 26 rue d'Ulm, Paris Cedex 05, France. mbornens@curie.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22282802" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Cell Movement ; Cell Nucleus/*physiology/ultrastructure ; *Cell Polarity ; Centrioles/*physiology ; Centrosome/chemistry/*physiology/ultrastructure ; Cilia/physiology ; Embryo, Nonmammalian/physiology ; Embryonic Development ; Fertilization ; Humans ; Spindle Apparatus/physiology/ultrastructure
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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)
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    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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    Comment on "Nuclear genomic sequences reveal that polar bears are an old and distinct bear lineage" (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-30
    Description: Based on nuclear and mitochondrial DNA, Hailer et al. (Reports, 20 April 2012, p. 344) suggested early divergence of polar bears from a common ancestor with brown bears and subsequent introgression. Our population genetic analysis that traces each of the genealogies in the independent nuclear loci does not support the evolutionary model proposed by the authors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakagome, Shigeki -- Mano, Shuhei -- Hasegawa, Masami -- New York, N.Y. -- Science. 2013 Mar 29;339(6127):1522. doi: 10.1126/science.1227339.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Statistical Mathematics, Tachikawa, Tokyo, Japan. nakagome@ism.ac.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23539580" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Genome ; *Multilocus Sequence Typing ; Ursidae/*genetics
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    IBI* series winner. How we got here: an inquiry-based activity about human evolution (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-12-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Price, Rebecca M -- New York, N.Y. -- Science. 2012 Dec 21;338(6114):1554-5. doi: 10.1126/science.1215221.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Interdisciplinary Arts and Sciences, University of Washington, Bothell, Bothell, WA 98011, USA. becca.price@uwb.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23258884" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Awards and Prizes ; *Biological Evolution ; Biology/*education ; Curriculum ; Hominidae/anatomy & histology ; Humans ; Pan troglodytes/anatomy & histology ; Problem-Based Learning ; Skull/anatomy & histology/embryology ; Teaching/*methods
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Parallel molecular evolution in an herbivore community (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-29
    Description: Numerous insects have independently evolved the ability to feed on plants that produce toxic secondary compounds called cardenolides and can sequester these compounds for use in their defense. We surveyed the protein target for cardenolides, the alpha subunit of the sodium pump, Na(+),K(+)-ATPase (ATPalpha), in 14 species that feed on cardenolide-producing plants and 15 outgroups spanning three insect orders. Despite the large number of potential targets for modulating cardenolide sensitivity, amino acid substitutions associated with host-plant specialization are highly clustered, with many parallel substitutions. Additionally, we document four independent duplications of ATPalpha with convergent tissue-specific expression patterns. We find that unique substitutions are disproportionately associated with recent duplications relative to parallel substitutions. Together, these findings support the hypothesis that adaptation tends to take evolutionary paths that minimize negative pleiotropy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3770729/" 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/PMC3770729/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhen, Ying -- Aardema, Matthew L -- Medina, Edgar M -- Schumer, Molly -- Andolfatto, Peter -- R01 GM083228/GM/NIGMS NIH HHS/ -- R01-GM083228/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Sep 28;337(6102):1634-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23019645" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological/*genetics ; Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Apocynaceae/*metabolism/parasitology ; Cardenolides/*metabolism ; *Evolution, Molecular ; Genetic Pleiotropy ; Herbivory/*genetics ; Host-Parasite Interactions/*genetics ; Insects/enzymology/*genetics/physiology ; Molecular Sequence Data ; Organ Specificity ; Sodium-Potassium-Exchanging ATPase/chemistry/*genetics/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Evolution. Microbial evolution in the wild (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-04-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DeLong, Edward F -- New York, N.Y. -- Science. 2012 Apr 27;336(6080):422-4. doi: 10.1126/science.1221822.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02138, USA. delong@mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22539708" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria/*genetics ; *Biofilms ; *Biological Evolution ; *Ecosystem ; *Mining ; *Recombination, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The genome of the ctenophore Mnemiopsis leidyi and its implications for cell type evolution (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-12-18
    Description: An understanding of ctenophore biology is critical for reconstructing events that occurred early in animal evolution. Toward this goal, we have sequenced, assembled, and annotated the genome of the ctenophore Mnemiopsis leidyi. Our phylogenomic analyses of both amino acid positions and gene content suggest that ctenophores rather than sponges are the sister lineage to all other animals. Mnemiopsis lacks many of the genes found in bilaterian mesodermal cell types, suggesting that these cell types evolved independently. The set of neural genes in Mnemiopsis is similar to that of sponges, indicating that sponges may have lost a nervous system. These results present a newly supported view of early animal evolution that accounts for major losses and/or gains of sophisticated cell types, including nerve and muscle cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3920664/" 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/PMC3920664/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ryan, Joseph F -- Pang, Kevin -- Schnitzler, Christine E -- Nguyen, Anh-Dao -- Moreland, R Travis -- Simmons, David K -- Koch, Bernard J -- Francis, Warren R -- Havlak, Paul -- NISC Comparative Sequencing Program -- Smith, Stephen A -- Putnam, Nicholas H -- Haddock, Steven H D -- Dunn, Casey W -- Wolfsberg, Tyra G -- Mullikin, James C -- Martindale, Mark Q -- Baxevanis, Andreas D -- ZIA HG000140-13/Intramural NIH HHS/ -- ZIA HG000140-14/Intramural NIH HHS/ -- ZIA HG000140-15/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2013 Dec 13;342(6164):1242592. doi: 10.1126/science.1242592.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genome Technology Branch, Division of Intramural Research, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24337300" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Biological Evolution ; Cell Lineage/*genetics ; Ctenophora/classification/*cytology/*genetics ; *Genome ; Mesoderm/cytology ; Molecular Sequence Data ; Muscle Development/genetics ; Neurogenesis/genetics ; Phylogeny
    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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    Adaptive evolution of multiple traits through multiple mutations at a single gene (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-16
    Description: The identification of precise mutations is required for a complete understanding of the underlying molecular and evolutionary mechanisms driving adaptive phenotypic change. Using plasticine models in the field, we show that the light coat color of deer mice that recently colonized the light-colored soil of the Nebraska Sand Hills provides a strong selective advantage against visually hunting predators. Color variation in an admixed population suggests that this light Sand Hills phenotype is composed of multiple traits. We identified distinct regions within the Agouti locus associated with each color trait and found that only haplotypes associated with light trait values have evidence of selection. Thus, local adaptation is the result of independent selection on many mutations within a single locus, each with a specific effect on an adaptive phenotype, thereby minimizing pleiotropic consequences.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3836219/" 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/PMC3836219/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Linnen, Catherine R -- Poh, Yu-Ping -- Peterson, Brant K -- Barrett, Rowan D H -- Larson, Joanna G -- Jensen, Jeffrey D -- Hoekstra, Hopi E -- 308796/European Research Council/International -- New York, N.Y. -- Science. 2013 Mar 15;339(6125):1312-6. doi: 10.1126/science.1233213.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Kentucky, Lexington, KY 40506, USA. catherine.linnen@uky.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23493712" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological/*genetics ; Agouti Signaling Protein/genetics ; Animals ; *Biological Evolution ; Color ; Food Chain ; *Multifactorial Inheritance ; Mutation ; Organic Chemicals ; Peromyscus/genetics/*physiology ; Pigmentation/*genetics ; Selection, Genetic
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    Identification of wheat gene Sr35 that confers resistance to Ug99 stem rust race group (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-07-03
    Description: Wheat stem rust, caused by Puccinia graminis f. sp. tritici (Pgt), is a devastating disease that can cause severe yield losses. A previously uncharacterized Pgt race, designated Ug99, has overcome most of the widely used resistance genes and is threatening major wheat production areas. Here, we demonstrate that the Sr35 gene from Triticum monococcum is a coiled-coil, nucleotide-binding, leucine-rich repeat gene that confers near immunity to Ug99 and related races. This gene is absent in the A-genome diploid donor and in polyploid wheat but is effective when transferred from T. monococcum to polyploid wheat. The cloning of Sr35 opens the door to the use of biotechnological approaches to control this devastating disease and to analyses of the molecular interactions that define the wheat-rust pathosystem.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4748951/" 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/PMC4748951/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saintenac, Cyrille -- Zhang, Wenjun -- Salcedo, Andres -- Rouse, Matthew N -- Trick, Harold N -- Akhunov, Eduard -- Dubcovsky, Jorge -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Aug 16;341(6147):783-6. doi: 10.1126/science.1239022. Epub 2013 Jun 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology, Kansas State University, Manhattan, KS 66506, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23811222" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Amino Acid Sequence ; *Basidiomycota/pathogenicity ; Cloning, Molecular ; Disease Resistance/genetics ; *Genes, Plant ; Haplotypes ; Molecular Sequence Annotation ; Molecular Sequence Data ; Mutation ; Phylogeny ; Plant Diseases/genetics/*immunology/microbiology ; Plant Proteins/chemistry/genetics ; Plant Stems/microbiology ; Plants, Genetically Modified ; Polymorphism, Single Nucleotide ; Polyploidy ; Sequence Analysis, DNA ; Triticum/*genetics/immunology/microbiology
    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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    Influence of HLA-C expression level on HIV control (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-04-06
    Description: A variant upstream of human leukocyte antigen C (HLA-C) shows the most significant genome-wide effect on HIV control in European Americans and is also associated with the level of HLA-C expression. We characterized the differential cell surface expression levels of all common HLA-C allotypes and tested directly for effects of HLA-C expression on outcomes of HIV infection in 5243 individuals. Increasing HLA-C expression was associated with protection against multiple outcomes independently of individual HLA allelic effects in both African and European Americans, regardless of their distinct HLA-C frequencies and linkage relationships with HLA-B and HLA-A. Higher HLA-C expression was correlated with increased likelihood of cytotoxic T lymphocyte responses and frequency of viral escape mutation. In contrast, high HLA-C expression had a deleterious effect in Crohn's disease, suggesting a broader influence of HLA expression levels in human disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3784322/" 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/PMC3784322/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Apps, Richard -- Qi, Ying -- Carlson, Jonathan M -- Chen, Haoyan -- Gao, Xiaojiang -- Thomas, Rasmi -- Yuki, Yuko -- Del Prete, Greg Q -- Goulder, Philip -- Brumme, Zabrina L -- Brumme, Chanson J -- John, Mina -- Mallal, Simon -- Nelson, George -- Bosch, Ronald -- Heckerman, David -- Stein, Judy L -- Soderberg, Kelly A -- Moody, M Anthony -- Denny, Thomas N -- Zeng, Xue -- Fang, Jingyuan -- Moffett, Ashley -- Lifson, Jeffrey D -- Goedert, James J -- Buchbinder, Susan -- Kirk, Gregory D -- Fellay, Jacques -- McLaren, Paul -- Deeks, Steven G -- Pereyra, Florencia -- Walker, Bruce -- Michael, Nelson L -- Weintrob, Amy -- Wolinsky, Steven -- Liao, Wilson -- Carrington, Mary -- 5-M01-RR-00722/RR/NCRR NIH HHS/ -- HHSN261200800001E/CA/NCI NIH HHS/ -- HHSN261200800001E/PHS HHS/ -- K08 AR057763/AR/NIAMS NIH HHS/ -- K08AR057763/AR/NIAMS NIH HHS/ -- K24 AI069994/AI/NIAID NIH HHS/ -- K24AI069994/AI/NIAID NIH HHS/ -- N02-CP-55504/CP/NCI NIH HHS/ -- P30 AI027763/AI/NIAID NIH HHS/ -- P30 AI027767/AI/NIAID NIH HHS/ -- P30 AI027767-24/AI/NIAID NIH HHS/ -- P30 MH62246/MH/NIMH NIH HHS/ -- PG/09/077/27964/British Heart Foundation/United Kingdom -- R01 AI046995/AI/NIAID NIH HHS/ -- R01 AI060460/AI/NIAID NIH HHS/ -- R01 AI087145/AI/NIAID NIH HHS/ -- R01 AR065174/AR/NIAMS NIH HHS/ -- R01-AI046995/AI/NIAID NIH HHS/ -- R01-AI060460/AI/NIAID NIH HHS/ -- R01-DA-04334/DA/NIDA NIH HHS/ -- R01-DA-12568/DA/NIDA NIH HHS/ -- R01-DA04334/DA/NIDA NIH HHS/ -- R01-DA12568/DA/NIDA NIH HHS/ -- R24 AI067039/AI/NIAID NIH HHS/ -- U01-AI-067854/AI/NIAID NIH HHS/ -- U01-AI-35039/AI/NIAID NIH HHS/ -- U01-AI-35040/AI/NIAID NIH HHS/ -- U01-AI-35041/AI/NIAID NIH HHS/ -- U01-AI-35042/AI/NIAID NIH HHS/ -- U01-AI-35043/AI/NIAID NIH HHS/ -- U01-AI-37613/AI/NIAID NIH HHS/ -- U01-AI-37984/AI/NIAID NIH HHS/ -- UL1 RR024131/RR/NCRR NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2013 Apr 5;340(6128):87-91. doi: 10.1126/science.1232685.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer and Inflammation Program, Laboratory of Experimental Immunology, Science Applications International Corporation-Frederick, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23559252" target="_blank"〉PubMed〈/a〉
    Keywords: African Americans/genetics ; Alleles ; Amino Acid Sequence ; Anti-Retroviral Agents/therapeutic use ; Crohn Disease/genetics/immunology ; *Gene Expression Regulation ; HIV/genetics/*immunology ; HIV Infections/drug therapy/*genetics/*immunology ; HLA-C Antigens/*genetics ; Humans ; Immunodominant Epitopes/genetics ; Molecular Sequence Data ; Mutation ; Peptide Fragments/immunology ; Polymorphism, Single Nucleotide ; T-Lymphocytes, Cytotoxic/*immunology ; Viral Load/genetics
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    Human Evolution. Elusive Denisovans sighted in oldest human DNA (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-12-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, Ann -- New York, N.Y. -- Science. 2013 Dec 6;342(6163):1156. doi: 10.1126/science.342.6163.1156.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24311652" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Bone and Bones ; *DNA, Mitochondrial ; *Fossils ; *Hominidae ; Humans ; Neanderthals ; Spain
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    Paleoanthropology. Stunning skull gives a fresh portrait of early humans (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-10-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, Ann -- New York, N.Y. -- Science. 2013 Oct 18;342(6156):297-8. doi: 10.1126/science.342.6156.297.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24136941" target="_blank"〉PubMed〈/a〉
    Keywords: *Anthropology ; *Biological Evolution ; *Fossils ; Georgia (Republic) ; History, Ancient ; Humans ; Skull/*anatomy & histology/*growth & development
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    Ardi's a hominin--but how did she move? (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-04-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, Ann -- New York, N.Y. -- Science. 2013 Apr 26;340(6131):427. doi: 10.1126/science.340.6131.427.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23620032" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anthropology, Physical/*history ; *Biological Evolution ; Female ; Foot/*anatomy & histology/*physiology ; History, Ancient ; Hominidae/*anatomy & histology/*physiology ; Walking/*history
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    Paleontology. Feathers before flight (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-05-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clarke, Julia -- New York, N.Y. -- Science. 2013 May 10;340(6133):690-2. doi: 10.1126/science.1235463.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geological Sciences, The University of Texas at Austin, Austin, TX 78712, USA. julia_clarke@jsg.utexas.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23661746" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds/anatomy & histology/growth & development ; Dinosaurs/anatomy & histology/growth & development ; Feathers/anatomy & histology/*growth & development/ultrastructure ; *Flight, Animal ; *Fossils ; Protein Structure, Secondary ; beta-Keratins/chemistry
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    Genomic diversity and evolution of the head crest in the rock pigeon (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-02-02
    Description: The geographic origins of breeds and the genetic basis of variation within the widely distributed and phenotypically diverse domestic rock pigeon (Columba livia) remain largely unknown. We generated a rock pigeon reference genome and additional genome sequences representing domestic and feral populations. We found evidence for the origins of major breed groups in the Middle East and contributions from a racing breed to North American feral populations. We identified the gene EphB2 as a strong candidate for the derived head crest phenotype shared by numerous breeds, an important trait in mate selection in many avian species. We also found evidence that this trait evolved just once and spread throughout the species, and that the crest originates early in development by the localized molecular reversal of feather bud polarity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3778192/" 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/PMC3778192/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shapiro, Michael D -- Kronenberg, Zev -- Li, Cai -- Domyan, Eric T -- Pan, Hailin -- Campbell, Michael -- Tan, Hao -- Huff, Chad D -- Hu, Haofu -- Vickrey, Anna I -- Nielsen, Sandra C A -- Stringham, Sydney A -- Hu, Hao -- Willerslev, Eske -- Gilbert, M Thomas P -- Yandell, Mark -- Zhang, Guojie -- Wang, Jun -- GO RC2HG005619/HG/NHGRI NIH HHS/ -- R01 GM104390/GM/NIGMS NIH HHS/ -- R01 HG004694/HG/NHGRI NIH HHS/ -- R01HG004694/HG/NHGRI NIH HHS/ -- R44 HG006579/HG/NHGRI NIH HHS/ -- RC2 HG005619/HG/NHGRI NIH HHS/ -- T32 GM007464/GM/NIGMS NIH HHS/ -- T32 HD007491/HD/NICHD NIH HHS/ -- T32GM007464/GM/NIGMS NIH HHS/ -- T32HD07491/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2013 Mar 1;339(6123):1063-7. doi: 10.1126/science.1230422. Epub 2013 Jan 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Utah, Salt Lake City, UT 84112, USA. mike.shapiro@utah.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23371554" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Animals, Domestic/anatomy & histology/classification/genetics ; Animals, Wild/anatomy & histology/classification/genetics ; Breeding ; Columbidae/anatomy & histology/*classification/*genetics ; *Evolution, Molecular ; Feathers/anatomy & histology ; *Genetic Variation ; Genome ; Head/*anatomy & histology ; Models, Genetic ; Molecular Sequence Data ; Phylogeny ; Polymorphism, Single Nucleotide ; *Quantitative Trait, Heritable ; Receptor, EphB2/genetics ; Sequence Analysis, DNA
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    Response to comment on "Bilaterian burrows and grazing behavior at 〉585 million years ago" (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-09-07
    Description: Gaucher et al. suggest that their field observations and petrographic analysis of one thin section do not support an Ediacaran age for the trace fossils-bearing strata of the Tacuari Formation. We have strengthened our conclusion of an Ediacaran age for the Tacuari Formation based on reassessment of new and previously presented field and petrographic evidence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pecoits, Ernesto -- Konhauser, Kurt O -- Aubet, Natalie R -- Heaman, Larry M -- Veroslavsky, Gerardo -- Stern, Richard -- Gingras, Murray K -- New York, N.Y. -- Science. 2013 Feb 22;339(6122):906. doi: 10.1126/science.1230677.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, T6G 2E3, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23430639" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Fossils
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    PINK1-phosphorylated mitofusin 2 is a Parkin receptor for culling damaged mitochondria (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-04-27
    Description: Senescent and damaged mitochondria undergo selective mitophagic elimination through mechanisms requiring two Parkinson's disease factors, the mitochondrial kinase PINK1 (PTEN-induced putative kinase protein 1; PTEN is phosphatase and tensin homolog) and the cytosolic ubiquitin ligase Parkin. The nature of the PINK-Parkin interaction and the identity of key factors directing Parkin to damaged mitochondria are unknown. We show that the mitochondrial outer membrane guanosine triphosphatase mitofusin (Mfn) 2 mediates Parkin recruitment to damaged mitochondria. Parkin bound to Mfn2 in a PINK1-dependent manner; PINK1 phosphorylated Mfn2 and promoted its Parkin-mediated ubiqitination. Ablation of Mfn2 in mouse cardiac myocytes prevented depolarization-induced translocation of Parkin to the mitochondria and suppressed mitophagy. Accumulation of morphologically and functionally abnormal mitochondria induced respiratory dysfunction in Mfn2-deficient mouse embryonic fibroblasts and cardiomyocytes and in Parkin-deficient Drosophila heart tubes, causing dilated cardiomyopathy. Thus, Mfn2 functions as a mitochondrial receptor for Parkin and is required for quality control of cardiac mitochondria.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3774525/" 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/PMC3774525/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Yun -- Dorn, Gerald W 2nd -- R01 HL059888/HL/NHLBI NIH HHS/ -- R21 HL107276/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2013 Apr 26;340(6131):471-5. doi: 10.1126/science.1231031.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Pharmacogenomics, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23620051" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Autophagy ; Cardiomyopathies/enzymology ; Drosophila melanogaster ; Fibroblasts/ultrastructure ; GTP Phosphohydrolases/genetics/*metabolism ; HEK293 Cells ; Humans ; Mice ; Mice, Mutant Strains ; Mitochondria/enzymology ; Mitochondria, Heart/*enzymology ; Molecular Sequence Data ; Myocytes, Cardiac/*enzymology/ultrastructure ; Phosphorylation ; Protein Kinases/*metabolism ; Ubiquitin-Protein Ligases/*metabolism ; Ubiquitination
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    Following gene duplication, paralog interference constrains transcriptional circuit evolution (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-10-05
    Description: Most models of gene duplication assume that the ancestral functions of the preduplication gene are independent and can therefore be neatly partitioned between descendant paralogs. However, many gene products, such as transcriptional regulators, are components within cooperative assemblies; here, we show that a natural consequence of duplication and divergence of such proteins can be competitive interference between the paralogs. Our example is based on the duplication of the essential MADS-box transcriptional regulator Mcm1, which is found in all fungi and regulates a large set of genes. We show that a set of historical amino acid sequence substitutions minimized paralog interference in contemporary species and, in doing so, increased the molecular complexity of this gene regulatory network. We propose that paralog interference is a common constraint on gene duplicate evolution, and its resolution, which can generate additional regulatory complexity, is needed to stabilize duplicated genes in the genome.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3911913/" 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/PMC3911913/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Christopher R -- Hanson-Smith, Victor -- Johnson, Alexander D -- F32 GM108299/GM/NIGMS NIH HHS/ -- R01 GM037049/GM/NIGMS NIH HHS/ -- R01 GM057049/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Oct 4;342(6154):104-8. doi: 10.1126/science.1240810.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology and Microbiology, University of California, San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24092741" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arginine/genetics ; Candida albicans/genetics ; *Evolution, Molecular ; *Gene Duplication ; *Gene Regulatory Networks ; Kluyveromyces/genetics ; Minichromosome Maintenance 1 Protein/*genetics ; Molecular Sequence Data ; Saccharomyces cerevisiae/genetics ; Sequence Deletion ; *Transcription, Genetic
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    Plant biology. Evolution heresy? Epigenetics underlies heritable plant traits (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-09-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2013 Sep 6;341(6150):1055. doi: 10.1126/science.341.6150.1055.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24009370" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*genetics/growth & development ; *Biological Evolution ; Breeding ; Congresses as Topic ; *Epigenesis, Genetic ; Flowers/*genetics ; *Gene Expression Regulation, Developmental ; *Gene Expression Regulation, Plant ; Portugal ; *Quantitative Trait, Heritable ; Time Factors
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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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    Evolution. Diverse crystals account for beetle sheen (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-07-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2013 Jul 12;341(6142):120. doi: 10.1126/science.341.6142.120.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23846885" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Color ; DNA/genetics ; Pigments, Biological/*chemistry ; Weevils/*anatomy & histology/*chemistry/genetics
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    Evolution. Why male mammals are monogamous (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-08-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kappeler, Peter M -- New York, N.Y. -- Science. 2013 Aug 2;341(6145):469-70. doi: 10.1126/science.1242001.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Behavioral Ecology and Sociobiology Unit, German Primate Center (DPZ), and Department of Sociobiology/Anthropology, University of Gottingen, Gottingen, Germany. pkappel@gwdg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23908214" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Female ; Male ; *Marriage ; *Sexual Behavior, Animal
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  • 88
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    Response to comment on "The placental mammal ancestor and the post-K-Pg radiation of placentals" (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-08-10
    Description: Tree-building with diverse data maximizes explanatory power. Application of molecular clock models to ancient speciation events risks a bias against detection of fast radiations subsequent to the Cretaceous-Paleogene (K-Pg) event. Contrary to Springer et al., post-K-Pg placental diversification does not require "virus-like" substitution rates. Even constraining clade ages to their model, the explosive model best explains placental evolution.〈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 -- 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 Aug 9;341(6146):613. doi: 10.1126/science.1238162.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomical Sciences, 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/23929968" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Female ; *Fossils ; *Mammals ; *Phylogeny ; Pregnancy
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    Structural basis for molecular recognition at serotonin receptors (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-03-23
    Description: Serotonin or 5-hydroxytryptamine (5-HT) regulates a wide spectrum of human physiology through the 5-HT receptor family. We report the crystal structures of the human 5-HT1B G protein-coupled receptor bound to the agonist antimigraine medications ergotamine and dihydroergotamine. The structures reveal similar binding modes for these ligands, which occupy the orthosteric pocket and an extended binding pocket close to the extracellular loops. The orthosteric pocket is formed by residues conserved in the 5-HT receptor family, clarifying the family-wide agonist activity of 5-HT. Compared with the structure of the 5-HT2B receptor, the 5-HT1B receptor displays a 3 angstrom outward shift at the extracellular end of helix V, resulting in a more open extended pocket that explains subtype selectivity. Together with docking and mutagenesis studies, these structures provide a comprehensive structural basis for understanding receptor-ligand interactions and designing subtype-selective serotonergic drugs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3644373/" 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/PMC3644373/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Chong -- Jiang, Yi -- Ma, Jinming -- Wu, Huixian -- Wacker, Daniel -- Katritch, Vsevolod -- Han, Gye Won -- Liu, Wei -- Huang, Xi-Ping -- Vardy, Eyal -- McCorvy, John D -- Gao, Xiang -- Zhou, X Edward -- Melcher, Karsten -- Zhang, Chenghai -- Bai, Fang -- Yang, Huaiyu -- Yang, Linlin -- Jiang, Hualiang -- Roth, Bryan L -- Cherezov, Vadim -- Stevens, Raymond C -- Xu, H Eric -- P50 GM073197/GM/NIGMS NIH HHS/ -- R01 DA027170/DA/NIDA NIH HHS/ -- R01 DA27170/DA/NIDA NIH HHS/ -- R01 DK071662/DK/NIDDK NIH HHS/ -- R01 MH061887/MH/NIMH NIH HHS/ -- R01 MH61887/MH/NIMH NIH HHS/ -- U19 MH082441/MH/NIMH NIH HHS/ -- U19 MH82441/MH/NIMH NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 May 3;340(6132):610-4. doi: 10.1126/science.1232807. Epub 2013 Mar 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23519210" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Crystallography, X-Ray ; Dihydroergotamine/chemistry/*metabolism ; Ergotamine/chemistry/*metabolism ; Humans ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Ligands ; Lysergic Acid Diethylamide/chemistry/metabolism ; Models, Molecular ; Molecular Docking Simulation ; Molecular Sequence Data ; Mutagenesis ; Norfenfluramine/chemistry/metabolism ; Pindolol/analogs & derivatives/chemistry/metabolism ; Propranolol/chemistry/metabolism ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Receptor, Serotonin, 5-HT1B/*chemistry/genetics/*metabolism ; Serotonin 5-HT1 Receptor Agonists/*chemistry/*metabolism ; Tryptamines/chemistry/metabolism
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  • 90
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    Conserved regulation of cardiac calcium uptake by peptides encoded in small open reading frames (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-08-24
    Description: Small open reading frames (smORFs) are short DNA sequences that are able to encode small peptides of less than 100 amino acids. Study of these elements has been neglected despite thousands existing in our genomes. We and others previously showed that peptides as short as 11 amino acids are translated and provide essential functions during insect development. Here, we describe two peptides of less than 30 amino acids regulating calcium transport, and hence influencing regular muscle contraction, in the Drosophila heart. These peptides seem conserved for more than 550 million years in a range of species from flies to humans, in which they have been implicated in cardiac pathologies. Such conservation suggests that the mechanisms for heart regulation are ancient and that smORFs may be a fundamental genome component that should be studied systematically.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Magny, Emile G -- Pueyo, Jose Ignacio -- Pearl, Frances M G -- Cespedes, Miguel Angel -- Niven, Jeremy E -- Bishop, Sarah A -- Couso, Juan Pablo -- 087516/Wellcome Trust/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2013 Sep 6;341(6150):1116-20. doi: 10.1126/science.1238802. Epub 2013 Aug 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Life Sciences, University of Sussex, Falmer, Brighton, East Sussex BN1 9QG, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23970561" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Calcium/*metabolism ; Conserved Sequence ; Drosophila Proteins/chemistry/genetics/metabolism/*physiology ; Drosophila melanogaster ; Evolution, Molecular ; Ion Transport ; Molecular Sequence Data ; Muscle Proteins/chemistry/genetics/*physiology ; Muscle, Skeletal/*metabolism ; *Myocardial Contraction ; Myocardium/*metabolism ; Open Reading Frames ; Peptides/chemistry/genetics/*physiology ; Protein Structure, Secondary ; Transaldolase/genetics/metabolism
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    2013 Society for Integrative and Comparative Biology Annual Meeting. Nervous system may have evolved twice (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-01-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2013 Jan 25;339(6118):391. doi: 10.1126/science.339.6118.391-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23349266" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Brain/anatomy & histology/physiology ; Ctenophora/anatomy & histology/cytology/*genetics/physiology ; Genome ; Nervous System/anatomy & histology/cytology ; *Neurons/cytology/physiology ; Sequence Analysis, DNA
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    A conserved mechanism for centromeric nucleosome recognition by centromere protein CENP-C (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-06-01
    Description: Chromosome segregation during mitosis requires assembly of the kinetochore complex at the centromere. Kinetochore assembly depends on specific recognition of the histone variant CENP-A in the centromeric nucleosome by centromere protein C (CENP-C). We have defined the determinants of this recognition mechanism and discovered that CENP-C binds a hydrophobic region in the CENP-A tail and docks onto the acidic patch of histone H2A and H2B. We further found that the more broadly conserved CENP-C motif uses the same mechanism for CENP-A nucleosome recognition. Our findings reveal a conserved mechanism for protein recruitment to centromeres and a histone recognition mode whereby a disordered peptide binds the histone tail through hydrophobic interactions facilitated by nucleosome docking.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3763809/" 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/PMC3763809/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kato, Hidenori -- Jiang, Jiansheng -- Zhou, Bing-Rui -- Rozendaal, Marieke -- Feng, Hanqiao -- Ghirlando, Rodolfo -- Xiao, T Sam -- Straight, Aaron F -- Bai, Yawen -- R01 GM074728/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- ZIA AI000960-07/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2013 May 31;340(6136):1110-3. doi: 10.1126/science.1235532.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Biochemistry and Molecular Biology, National Cancer Institute, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23723239" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Autoantigens/metabolism ; Binding Sites ; Centromere/*metabolism ; Chromosomal Proteins, Non-Histone/genetics/*metabolism ; Conserved Sequence ; Drosophila ; Histones/*metabolism ; Humans ; Hydrophobic and Hydrophilic Interactions ; Molecular Sequence Data ; Nucleosomes/*metabolism ; Protein Structure, Secondary
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    2013 Society for Integrative and Comparative Biology Annual Meeting. Eating was tough for early tetrapods (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-01-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2013 Jan 25;339(6118):390. doi: 10.1126/science.339.6118.390.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23349265" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Deglutition ; *Feeding Behavior ; Fishes/anatomy & histology/physiology ; *Fossils ; Jaw/*anatomy & histology ; Mouth/anatomy & histology/physiology ; Vertebrates/*anatomy & histology/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Erythropoietin derived by chemical synthesis (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-12-18
    Description: Erythropoietin is a signaling glycoprotein that controls the fundamental process of erythropoiesis, orchestrating the production and maintenance of red blood cells. As administrated clinically, erythropoietin has a polypeptide backbone with complex dishomogeneity in its carbohydrate domains. Here we describe the total synthesis of homogeneous erythropoietin with consensus carbohydrate domains incorporated at all of the native glycosylation sites. The oligosaccharide sectors were built by total synthesis and attached stereospecifically to peptidyl fragments of the wild-type primary sequence, themselves obtained by solid-phase peptide synthesis. The glycopeptidyl constructs were joined by chemical ligation, followed by metal-free dethiylation, and subsequently folded. This homogeneous erythropoietin glycosylated at the three wild-type aspartates with N-linked high-mannose sialic acid-containing oligosaccharides and O-linked glycophorin exhibits Procrit-level in vivo activity in mice.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4080428/" 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/PMC4080428/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Ping -- Dong, Suwei -- Shieh, Jae-Hung -- Peguero, Elizabeth -- Hendrickson, Ronald -- Moore, Malcolm A S -- Danishefsky, Samuel J -- HL025848/HL/NHLBI NIH HHS/ -- P30 CA008748/CA/NCI NIH HHS/ -- R01 GM109760/GM/NIGMS NIH HHS/ -- R01 HL025848/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2013 Dec 13;342(6164):1357-60. doi: 10.1126/science.1245095.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory for Bioorganic Chemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24337294" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Aspartic Acid/chemistry ; Cells, Cultured ; Consensus Sequence ; Dose-Response Relationship, Drug ; Erythrocyte Count ; Erythropoietin/*administration & dosage/*chemical synthesis/chemistry ; Glycophorin/chemistry ; Glycosylation ; Injections, Subcutaneous ; Mannose/chemistry ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; N-Acetylneuraminic Acid/chemistry ; Oligosaccharides/chemistry ; Reticulocytes/drug effects
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    The human THAP9 gene encodes an active P-element DNA transposase (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    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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    Evolution. How cooperation defeats cheats (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-12-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spottiswoode, Claire N -- New York, N.Y. -- Science. 2013 Dec 20;342(6165):1452-3. doi: 10.1126/science.1247758.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Cambridge, Downing Street, Cambridge, CB2 3EJ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24357303" target="_blank"〉PubMed〈/a〉
    Keywords: *Aggression ; Animals ; *Biological Evolution ; *Breeding ; *Cooperative Behavior ; *Nesting Behavior ; Passeriformes/*physiology
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    The gene Sr33, an ortholog of barley Mla genes, encodes resistance to wheat stem rust race Ug99 (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-07-03
    Description: Wheat stem rust, caused by the fungus Puccinia graminis f. sp. tritici, afflicts bread wheat (Triticum aestivum). New virulent races collectively referred to as "Ug99" have emerged, which threaten global wheat production. The wheat gene Sr33, introgressed from the wild relative Aegilops tauschii into bread wheat, confers resistance to diverse stem rust races, including the Ug99 race group. We cloned Sr33, which encodes a coiled-coil, nucleotide-binding, leucine-rich repeat protein. Sr33 is orthologous to the barley (Hordeum vulgare) Mla mildew resistance genes that confer resistance to Blumeria graminis f. sp. hordei. The wheat Sr33 gene functions independently of RAR1, SGT1, and HSP90 chaperones. Haplotype analysis from diverse collections of Ae. tauschii placed the origin of Sr33 resistance near the southern coast of the Caspian Sea.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Periyannan, Sambasivam -- Moore, John -- Ayliffe, Michael -- Bansal, Urmil -- Wang, Xiaojing -- Huang, Li -- Deal, Karin -- Luo, Mingcheng -- Kong, Xiuying -- Bariana, Harbans -- Mago, Rohit -- McIntosh, Robert -- Dodds, Peter -- Dvorak, Jan -- Lagudah, Evans -- New York, N.Y. -- Science. 2013 Aug 16;341(6147):786-8. doi: 10.1126/science.1239028. Epub 2013 Jun 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Commonwealth Scientific and Industrial Research Organization (CSIRO) Plant Industry, Canberra, ACT 2601, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23811228" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Basidiomycota/pathogenicity ; Cloning, Molecular ; Disease Resistance/genetics ; *Genes, Plant ; Haplotypes ; Hordeum/genetics ; Hybridization, Genetic ; Molecular Chaperones/genetics/metabolism ; Molecular Sequence Data ; Mutation ; Plant Diseases/genetics/*immunology/microbiology ; Plant Proteins/chemistry/genetics/metabolism ; Plant Stems/microbiology ; Plants, Genetically Modified ; Poaceae/*genetics ; Synteny ; Triticum/*genetics/*microbiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Technical comment on "The placental mammal ancestor and the post-K-Pg radiation of placentals" (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-08-10
    Description: O'Leary et al. (Research Article, 8 February 2013, p. 662) examined mammalian relationships and divergence times and concluded that a single placental ancestor crossed the Cretaceous-Paleogene (K-Pg) boundary. This conclusion relies on phylogenetic analyses that fail to discriminate between homology and homoplasy and further implies virus-like rates of nucleotide substitution in early Paleocene placentals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Springer, Mark S -- Meredith, Robert W -- Teeling, Emma C -- Murphy, William J -- New York, N.Y. -- Science. 2013 Aug 9;341(6146):613. doi: 10.1126/science.1238025.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of California, Riverside, CA 92521, USA. mark.springer@ucr.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23929967" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Female ; *Fossils ; *Mammals ; *Phylogeny ; Pregnancy
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    Structural basis for kinesin-1:cargo recognition (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-03-23
    Description: Kinesin-mediated cargo transport is required for many cellular functions and plays a key role in pathological processes. Structural information on how kinesins recognize their cargoes is required for a molecular understanding of this fundamental and ubiquitous process. Here, we present the crystal structure of the tetratricopeptide repeat domain of kinesin light chain 2 in complex with a cargo peptide harboring a "tryptophan-acidic" motif derived from SKIP (SifA-kinesin interacting protein), a critical host determinant in Salmonella pathogenesis and a regulator of lysosomal positioning. Structural data together with biophysical, biochemical, and cellular assays allow us to propose a framework for intracellular transport based on the binding by kinesin-1 of W-acidic cargo motifs through a combination of electrostatic interactions and sequence-specific elements, providing direct molecular evidence of the mechanisms for kinesin-1:cargo recognition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3693442/" 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/PMC3693442/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pernigo, Stefano -- Lamprecht, Anneri -- Steiner, Roberto A -- Dodding, Mark P -- 097316/Wellcome Trust/United Kingdom -- British Heart Foundation/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2013 Apr 19;340(6130):356-9. doi: 10.1126/science.1234264. Epub 2013 Mar 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Randall Division of Cell and Molecular Biophysics, King's College London, London SE1 1UL, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23519214" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Bacterial Proteins/*chemistry/metabolism ; Crystallography, X-Ray ; Glycoproteins/*chemistry/metabolism ; HeLa Cells ; Humans ; Mice ; Microtubule-Associated Proteins/*chemistry/genetics/metabolism ; Molecular Sequence Data ; Mutation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Tryptophan/chemistry/genetics/metabolism
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    Preferential recognition of avian-like receptors in human influenza A H7N9 viruses (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-12-07
    Description: The 2013 outbreak of avian-origin H7N9 influenza in eastern China has raised concerns about its ability to transmit in the human population. The hemagglutinin glycoprotein of most human H7N9 viruses carries Leu(226), a residue linked to adaptation of H2N2 and H3N2 pandemic viruses to human receptors. However, glycan array analysis of the H7 hemagglutinin reveals negligible binding to humanlike alpha2-6-linked receptors and strong preference for a subset of avian-like alpha2-3-linked glycans recognized by all avian H7 viruses. Crystal structures of H7N9 hemagglutinin and six hemagglutinin-glycan complexes have elucidated the structural basis for preferential recognition of avian-like receptors. These findings suggest that the current human H7N9 viruses are poorly adapted for efficient human-to-human transmission.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3954636/" 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/PMC3954636/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, Rui -- de Vries, Robert P -- Zhu, Xueyong -- Nycholat, Corwin M -- McBride, Ryan -- Yu, Wenli -- Paulson, James C -- Wilson, Ian A -- GM62116/GM/NIGMS NIH HHS/ -- P41GM103393/GM/NIGMS NIH HHS/ -- P41RR001209/RR/NCRR NIH HHS/ -- R56 AI099275/AI/NIAID NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Dec 6;342(6163):1230-5. doi: 10.1126/science.1243761.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24311689" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Birds ; Carbohydrate Conformation ; Crystallography, X-Ray ; Hemagglutinin Glycoproteins, Influenza Virus/*chemistry/*metabolism ; Humans ; Influenza A Virus, H7N9 Subtype/*metabolism/*pathogenicity ; Influenza in Birds/transmission/virology ; Influenza, Human/transmission/virology ; Ligands ; Microarray Analysis ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Polysaccharides/chemistry/*metabolism ; Receptors, Virus/chemistry/*metabolism ; Recombinant Proteins/chemistry/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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