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  • Mutation  (590)
  • Signal Transduction  (348)
  • Phosphorylation
  • American Association for the Advancement of Science (AAAS)  (1,003)
  • American Institute of Physics (AIP)
  • 2005-2009  (917)
  • 1980-1984  (86)
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  • 1
    Publication Date: 2009-08-29
    Description: Coat color and type are essential characteristics of domestic dog breeds. Although the genetic basis of coat color has been well characterized, relatively little is known about the genes influencing coat growth pattern, length, and curl. We performed genome-wide association studies of more than 1000 dogs from 80 domestic breeds to identify genes associated with canine fur phenotypes. Taking advantage of both inter- and intrabreed variability, we identified distinct mutations in three genes, RSPO2, FGF5, and KRT71 (encoding R-spondin-2, fibroblast growth factor-5, and keratin-71, respectively), that together account for most coat phenotypes in purebred dogs in the United States. Thus, an array of varied and seemingly complex phenotypes can be reduced to the combinatorial effects of only a few genes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2897713/" 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/PMC2897713/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cadieu, Edouard -- Neff, Mark W -- Quignon, Pascale -- Walsh, Kari -- Chase, Kevin -- Parker, Heidi G -- Vonholdt, Bridgett M -- Rhue, Alison -- Boyko, Adam -- Byers, Alexandra -- Wong, Aaron -- Mosher, Dana S -- Elkahloun, Abdel G -- Spady, Tyrone C -- Andre, Catherine -- Lark, K Gordon -- Cargill, Michelle -- Bustamante, Carlos D -- Wayne, Robert K -- Ostrander, Elaine A -- 1R01GM83606/GM/NIGMS NIH HHS/ -- GM063056/GM/NIGMS NIH HHS/ -- R01 GM063056/GM/NIGMS NIH HHS/ -- R01 GM063056-09/GM/NIGMS NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2009 Oct 2;326(5949):150-3. doi: 10.1126/science.1177808. Epub 2009 Aug 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉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/19713490" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions ; Animals ; Dogs/*genetics ; Fibroblast Growth Factor 5/*genetics ; Genome-Wide Association Study ; *Hair/anatomy & histology/growth & development ; Haplotypes ; Keratins, Hair-Specific/*genetics ; Lod Score ; Molecular Sequence Data ; Mutation ; Oligonucleotide Array Sequence Analysis ; Phenotype ; *Polymorphism, Single Nucleotide ; Sequence Analysis, DNA ; Thrombospondins/*genetics ; United States
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    Electronic ISSN: 1095-9203
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  • 2
    Publication Date: 2009-09-12
    Description: RNA interference (RNAi), a gene-silencing pathway triggered by double-stranded RNA, is conserved in diverse eukaryotic species but has been lost in the model budding yeast Saccharomyces cerevisiae. Here, we show that RNAi is present in other budding yeast species, including Saccharomyces castellii and Candida albicans. These species use noncanonical Dicer proteins to generate small interfering RNAs, which mostly correspond to transposable elements and Y' subtelomeric repeats. In S. castellii, RNAi mutants are viable but have excess Y' messenger RNA levels. In S. cerevisiae, introducing Dicer and Argonaute of S. castellii restores RNAi, and the reconstituted pathway silences endogenous retrotransposons. These results identify a previously unknown class of Dicer proteins, bring the tool of RNAi to the study of budding yeasts, and bring the tools of budding yeast to the study of RNAi.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3786161/" 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/PMC3786161/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Drinnenberg, Ines A -- Weinberg, David E -- Xie, Kathleen T -- Mower, Jeffrey P -- Wolfe, Kenneth H -- Fink, Gerald R -- Bartel, David P -- GM0305010/GM/NIGMS NIH HHS/ -- GM040266/GM/NIGMS NIH HHS/ -- GM067031/GM/NIGMS NIH HHS/ -- R01 GM067031/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Oct 23;326(5952):544-50. doi: 10.1126/science.1176945. Epub 2009 Sep 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, 9 Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19745116" target="_blank"〉PubMed〈/a〉
    Keywords: Fungal Proteins/genetics/metabolism ; Gene Expression Profiling ; Genes, Fungal ; Genetic Loci ; Mutation ; Open Reading Frames ; *RNA Interference ; RNA, Double-Stranded/genetics/metabolism ; RNA, Fungal/genetics/metabolism ; RNA, Messenger/genetics/metabolism ; RNA, Small Interfering/genetics/*metabolism ; Repetitive Sequences, Nucleic Acid ; Retroelements ; Ribonuclease III/genetics/metabolism ; Saccharomyces/*genetics/metabolism ; Saccharomyces cerevisiae/*genetics/metabolism ; Saccharomyces cerevisiae Proteins/genetics/metabolism ; Saccharomycetales/*genetics/metabolism ; Sequence Analysis, RNA ; Transcription, Genetic ; Transformation, Genetic
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  • 3
    Publication Date: 2009-02-07
    Description: Prabhakar et al. (Reports, 5 September 2008, p. 1346) argued that the conserved noncoding sequence HACNS1 has undergone positive selection and contributed to human adaptation. However, the pattern of substitution in HACNS1 is more consistent with the neutral process of biased gene conversion (BGC). The reported human-specific gain of function is likely due to the accumulation of deleterious mutations driven by BGC, not positive selection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duret, Laurent -- Galtier, Nicolas -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):714; author reply 714. doi: 10.1126/science.1165848.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Universite de Lyon, Universite Lyon 1, CNRS, UMR5558, Laboratoire de Biometrie et Biologie Evolutive, F-69622, Villeurbanne, France. duret@biomserv.univ-lyon1.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19197042" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conserved Sequence ; *Enhancer Elements, Genetic ; Evolution, Molecular ; *Gene Conversion ; Humans ; Mutation ; Recombination, Genetic ; Selection, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-04-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vinson, Valda J -- New York, N.Y. -- Science. 2009 Apr 10;324(5924):197. doi: 10.1126/science.324.5924.197.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19359575" target="_blank"〉PubMed〈/a〉
    Keywords: Evolution, Molecular ; Motion ; Protein Conformation ; Proteins/*chemistry/*physiology ; Signal Transduction ; Thermodynamics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-09-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alberts, Bruce -- New York, N.Y. -- Science. 2009 Sep 11;325(5946):1319. doi: 10.1126/science.1181224.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19745119" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antineoplastic Agents/pharmacology/therapeutic use ; *Biomedical Research ; DNA Repair ; Drug Discovery ; Humans ; Mutation ; *Neoplasms/drug therapy/genetics
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  • 6
    Publication Date: 2009-12-08
    Description: Fanconi anemia is a human cancer predisposition syndrome caused by mutations in 13 Fanc genes. The disorder is characterized by genomic instability and cellular hypersensitivity to chemicals that generate DNA interstrand cross-links (ICLs). A central event in the activation of the Fanconi anemia pathway is the mono-ubiquitylation of the FANCI-FANCD2 complex, but how this complex confers ICL resistance remains enigmatic. Using a cell-free system, we showed that FANCI-FANCD2 is required for replication-coupled ICL repair in S phase. Removal of FANCD2 from extracts inhibits both nucleolytic incisions near the ICL and translesion DNA synthesis past the lesion. Reversal of these defects requires ubiquitylated FANCI-FANCD2. Our results show that multiple steps of the essential S-phase ICL repair mechanism fail when the Fanconi anemia pathway is compromised.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2909596/" 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/PMC2909596/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knipscheer, Puck -- Raschle, Markus -- Smogorzewska, Agata -- Enoiu, Milica -- Ho, The Vinh -- Scharer, Orlando D -- Elledge, Stephen J -- Walter, Johannes C -- GM62267/GM/NIGMS NIH HHS/ -- R01 GM062267/GM/NIGMS NIH HHS/ -- R01 GM062267-09/GM/NIGMS NIH HHS/ -- R37 GM044664/GM/NIGMS NIH HHS/ -- R37 GM044664-23/GM/NIGMS NIH HHS/ -- T32CA09216/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Dec 18;326(5960):1698-701. doi: 10.1126/science.1182372. Epub 2009 Nov 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965384" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell-Free System ; Chromatin/metabolism ; DNA/biosynthesis ; DNA Damage ; *DNA Repair ; *DNA Replication ; Fanconi Anemia/genetics/metabolism ; Fanconi Anemia Complementation Group D2 Protein/*metabolism ; Fanconi Anemia Complementation Group Proteins/*metabolism ; Molecular Sequence Data ; Recombinant Proteins/metabolism ; S Phase ; Signal Transduction ; Ubiquitinated Proteins/metabolism ; Ubiquitination ; Xenopus Proteins/*metabolism ; Xenopus laevis
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  • 7
    Publication Date: 2009-12-08
    Description: Simocyclinones are bifunctional antibiotics that inhibit bacterial DNA gyrase by preventing DNA binding to the enzyme. We report the crystal structure of the complex formed between the N-terminal domain of the Escherichia coli gyrase A subunit and simocyclinone D8, revealing two binding pockets that separately accommodate the aminocoumarin and polyketide moieties of the antibiotic. These are close to, but distinct from, the quinolone-binding site, consistent with our observations that several mutations in this region confer resistance to both agents. Biochemical studies show that the individual moieties of simocyclinone D8 are comparatively weak inhibitors of gyrase relative to the parent compound, but their combination generates a more potent inhibitor. Our results should facilitate the design of drug molecules that target these unexploited binding pockets.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Edwards, Marcus J -- Flatman, Ruth H -- Mitchenall, Lesley A -- Stevenson, Clare E M -- Le, Tung B K -- Clarke, Thomas A -- McKay, Adam R -- Fiedler, Hans-Peter -- Buttner, Mark J -- Lawson, David M -- Maxwell, Anthony -- Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2009 Dec 4;326(5958):1415-8. doi: 10.1126/science.1179123.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965760" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Anti-Bacterial Agents/chemistry/metabolism/pharmacology ; Binding Sites ; Coumarins/chemistry/metabolism/pharmacology ; Crystallography, X-Ray ; DNA Gyrase/*chemistry/genetics/*metabolism ; DNA, Bacterial/metabolism ; Drug Resistance, Bacterial ; Escherichia coli/drug effects/*enzymology/genetics ; Glycosides/chemistry/metabolism/pharmacology ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Molecular Weight ; Mutagenesis, Site-Directed ; Mutation ; Protein Multimerization ; Protein Structure, Tertiary ; Topoisomerase II Inhibitors
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2009-02-07
    Description: Biodiversity hotspots, representing regions with high species endemism and conservation threat, have been mapped globally. Yet, biodiversity distribution data from within hotspots are too sparse for effective conservation in the face of rapid environmental change. Using frogs as indicators, ecological niche models under paleoclimates, and simultaneous Bayesian analyses of multispecies molecular data, we compare alternative hypotheses of assemblage-scale response to late Quaternary climate change. This reveals a hotspot within the Brazilian Atlantic forest hotspot. We show that the southern Atlantic forest was climatically unstable relative to the central region, which served as a large climatic refugium for neotropical species in the late Pleistocene. This sets new priorities for conservation in Brazil and establishes a validated approach to biodiversity prediction in other understudied, species-rich regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carnaval, Ana Carolina -- Hickerson, Michael J -- Haddad, Celio F B -- Rodrigues, Miguel T -- Moritz, Craig -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):785-9. doi: 10.1126/science.1166955.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Museum of Vertebrate Zoology, University of California, Berkeley, CA 94720-3160, USA. carnaval@berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19197066" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anura/classification/*genetics ; Bayes Theorem ; *Biodiversity ; Brazil ; Conservation of Natural Resources ; DNA, Mitochondrial/genetics ; Demography ; *Ecosystem ; Geography ; Molecular Sequence Data ; Mutation ; Phylogeny ; Population Dynamics ; Time ; *Trees ; *Tropical Climate
    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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  • 9
    Publication Date: 2009-11-11
    Description: Rapid antigenic evolution in the influenza A virus hemagglutinin precludes effective vaccination with existing vaccines. To understand this phenomenon, we passaged virus in mice immunized with influenza vaccine. Neutralizing antibodies selected mutants with single-amino acid hemagglutinin substitutions that increased virus binding to cell surface glycan receptors. Passaging these high-avidity binding mutants in naive mice, but not immune mice, selected for additional hemagglutinin substitutions that decreased cellular receptor binding avidity. Analyzing a panel of monoclonal antibody hemagglutinin escape mutants revealed a positive correlation between receptor binding avidity and escape from polyclonal antibodies. We propose that in response to variation in neutralizing antibody pressure between individuals, influenza A virus evolves by adjusting receptor binding avidity via amino acid substitutions throughout the hemagglutinin globular domain, many of which simultaneously alter antigenicity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2784927/" 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/PMC2784927/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hensley, Scott E -- Das, Suman R -- Bailey, Adam L -- Schmidt, Loren M -- Hickman, Heather D -- Jayaraman, Akila -- Viswanathan, Karthik -- Raman, Rahul -- Sasisekharan, Ram -- Bennink, Jack R -- Yewdell, Jonathan W -- GM 57073/GM/NIGMS NIH HHS/ -- U54 GM62116/GM/NIGMS NIH HHS/ -- Z01 AI001014-01/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2009 Oct 30;326(5953):734-6. doi: 10.1126/science.1178258.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19900932" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Neutralizing/immunology ; Antibodies, Viral/immunology ; Antigenic Variation/genetics/*immunology ; Cell Line ; Hemagglutinin Glycoproteins, Influenza Virus/genetics/immunology/*metabolism ; Influenza A Virus, H1N1 Subtype/genetics/*immunology ; Influenza Vaccines/immunology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Models, Immunological ; Mutation ; Receptors, Virus/*metabolism ; Serial Passage
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  • 10
    Publication Date: 2009-01-10
    Description: Cytokines such as interleukin-6 induce tyrosine and serine phosphorylation of Stat3 that results in activation of Stat3-responsive genes. We provide evidence that Stat3 is present in the mitochondria of cultured cells and primary tissues, including the liver and heart. In Stat3(-/-) cells, the activities of complexes I and II of the electron transport chain (ETC) were significantly decreased. We identified Stat3 mutants that selectively restored the protein's function as a transcription factor or its functions within the ETC. In mice that do not express Stat3 in the heart, there were also selective defects in the activities of complexes I and II of the ETC. These data indicate that Stat3 is required for optimal function of the ETC, which may allow it to orchestrate responses to cellular homeostasis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2758306/" 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/PMC2758306/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wegrzyn, Joanna -- Potla, Ramesh -- Chwae, Yong-Joon -- Sepuri, Naresh B V -- Zhang, Qifang -- Koeck, Thomas -- Derecka, Marta -- Szczepanek, Karol -- Szelag, Magdalena -- Gornicka, Agnieszka -- Moh, Akira -- Moghaddas, Shadi -- Chen, Qun -- Bobbili, Santha -- Cichy, Joanna -- Dulak, Jozef -- Baker, Darren P -- Wolfman, Alan -- Stuehr, Dennis -- Hassan, Medhat O -- Fu, Xin-Yuan -- Avadhani, Narayan -- Drake, Jennifer I -- Fawcett, Paul -- Lesnefsky, Edward J -- Larner, Andrew C -- CA098924/CA/NCI NIH HHS/ -- P01AG15885/AG/NIA NIH HHS/ -- R01 AI059710/AI/NIAID NIH HHS/ -- R01 AI059710-03/AI/NIAID NIH HHS/ -- R01 AI059710-04/AI/NIAID NIH HHS/ -- R01 CA098924/CA/NCI NIH HHS/ -- R01 CA098924-03/CA/NCI NIH HHS/ -- R01 CA098924-04/CA/NCI NIH HHS/ -- R01 CA098924-05/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):793-7. doi: 10.1126/science.1164551. Epub 2009 Jan 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131594" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Respiration ; Cells, Cultured ; Electron Transport Complex I/metabolism ; Electron Transport Complex II/metabolism ; Homeostasis ; Mice ; Mitochondria/*metabolism ; Mitochondria, Heart/metabolism ; Mitochondria, Liver/metabolism ; Mitochondrial Membranes/metabolism ; NADH, NADPH Oxidoreductases/metabolism ; Oxidative Phosphorylation ; Phosphorylation ; Precursor Cells, B-Lymphoid/metabolism ; STAT3 Transcription Factor/chemistry/*metabolism ; Serine/metabolism ; Signal Transduction
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  • 11
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2009 May 22;324(5930):1012-3. doi: 10.1126/science.324_1012.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19460982" target="_blank"〉PubMed〈/a〉
    Keywords: Abscisic Acid/*metabolism ; Arabidopsis/genetics/metabolism ; Arabidopsis Proteins/metabolism ; Genes, Plant ; Phosphoprotein Phosphatases/metabolism ; Plant Proteins/*metabolism ; Plants/genetics/*metabolism ; Protein Binding ; Signal Transduction ; Stress, Physiological
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  • 12
    Publication Date: 2009-06-13
    Description: Rotavirus outer-layer protein VP7 is a principal target of protective antibodies. Removal of free calcium ions (Ca2+) dissociates VP7 trimers into monomers, releasing VP7 from the virion, and initiates penetration-inducing conformational changes in the other outer-layer protein, VP4. We report the crystal structure at 3.4 angstrom resolution of VP7 bound with the Fab fragment of a neutralizing monoclonal antibody. The Fab binds across the outer surface of the intersubunit contact, which contains two Ca2+ sites. Mutations that escape neutralization by other antibodies suggest that the same region bears the epitopes of most neutralizing antibodies. The monovalent Fab is sufficient to neutralize infectivity. We propose that neutralizing antibodies against VP7 act by stabilizing the trimer, thereby inhibiting the uncoating trigger for VP4 rearrangement. A disulfide-linked trimer is a potential subunit immunogen.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2995306/" 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/PMC2995306/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aoki, Scott T -- Settembre, Ethan C -- Trask, Shane D -- Greenberg, Harry B -- Harrison, Stephen C -- Dormitzer, Philip R -- AI-21362/AI/NIAID NIH HHS/ -- CA-13202/CA/NCI NIH HHS/ -- DK-56339/DK/NIDDK NIH HHS/ -- R37 CA013202/CA/NCI NIH HHS/ -- R37 CA013202-38/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Jun 12;324(5933):1444-7. doi: 10.1126/science.1170481.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Medicine, Children's Hospital, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19520960" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal/chemistry/immunology/metabolism ; Antibodies, Viral/chemistry/*immunology/metabolism ; Antigens, Viral/*chemistry/genetics/*immunology/metabolism ; Binding Sites ; Binding Sites, Antibody ; Calcium/metabolism ; Capsid Proteins/*chemistry/genetics/*immunology/metabolism ; Crystallography, X-Ray ; Epitopes/immunology ; Immunoglobulin Fab Fragments/chemistry/*immunology/metabolism ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Neutralization Tests ; Protein Folding ; Protein Multimerization ; Protein Structure, Tertiary ; Protein Subunits ; Recombinant Proteins/chemistry ; Rotavirus/*chemistry/immunology ; Serotyping
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  • 13
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2009 Dec 18;326(5960):1612. doi: 10.1126/science.326.5960.1612.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20019263" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Animals ; *Biological Evolution ; DNA-Binding Proteins/genetics/physiology ; Drosophila Proteins/genetics/physiology ; Drosophila melanogaster/*genetics/growth & development/physiology ; *Enhancer Elements, Genetic ; *Gene Expression Regulation, Developmental ; Mutation ; Paired Box Transcription Factors/genetics ; Pigmentation/genetics ; Regulatory Sequences, Nucleic Acid ; Smegmamorpha/anatomy & histology/*genetics/growth & development
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  • 14
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-09-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meijer, Dies -- New York, N.Y. -- Science. 2009 Sep 11;325(5946):1353-4. doi: 10.1126/science.1180103.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology and Genetics, ErasmusMC, 3000 CA Rotterdam, Netherlands. d.meijer@erasmusmc.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19745142" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cyclic AMP/*metabolism ; Cyclic AMP-Dependent Protein Kinases/metabolism ; Homeodomain Proteins/genetics/metabolism ; Myelin Sheath/*physiology ; NF-kappa B/metabolism ; Octamer Transcription Factor-6/genetics/metabolism ; POU Domain Factors/genetics/metabolism ; Receptors, G-Protein-Coupled/genetics/*metabolism ; Schwann Cells/*metabolism ; Signal Transduction ; Transcription Factors/metabolism ; Zebrafish/genetics/*metabolism ; Zebrafish Proteins/genetics/*metabolism
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  • 15
    Publication Date: 2009-04-11
    Description: The nuclear factor kappaB (NF-kappaB) transcription factor regulates cellular stress responses and the immune response to infection. NF-kappaB activation results in oscillations in nuclear NF-kappaB abundance. To define the function of these oscillations, we treated cells with repeated short pulses of tumor necrosis factor-alpha at various intervals to mimic pulsatile inflammatory signals. At all pulse intervals that were analyzed, we observed synchronous cycles of NF-kappaB nuclear translocation. Lower frequency stimulations gave repeated full-amplitude translocations, whereas higher frequency pulses gave reduced translocation, indicating a failure to reset. Deterministic and stochastic mathematical models predicted how negative feedback loops regulate both the resetting of the system and cellular heterogeneity. Altering the stimulation intervals gave different patterns of NF-kappaB-dependent gene expression, which supports the idea that oscillation frequency has a functional role.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2785900/" 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/PMC2785900/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ashall, Louise -- Horton, Caroline A -- Nelson, David E -- Paszek, Pawel -- Harper, Claire V -- Sillitoe, Kate -- Ryan, Sheila -- Spiller, David G -- Unitt, John F -- Broomhead, David S -- Kell, Douglas B -- Rand, David A -- See, Violaine -- White, Michael R H -- BB/C007158/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/C008219/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/C520471/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/D010748/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/E004210/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/E012965/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/F005938/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BBC0071581/Biotechnology and Biological Sciences Research Council/United Kingdom -- BBC0082191/Biotechnology and Biological Sciences Research Council/United Kingdom -- BBC5204711/Biotechnology and Biological Sciences Research Council/United Kingdom -- BBD0107481/Biotechnology and Biological Sciences Research Council/United Kingdom -- BBF0059381/Biotechnology and Biological Sciences Research Council/United Kingdom -- G0500346/Medical Research Council/United Kingdom -- G0500346(73596)/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2009 Apr 10;324(5924):242-6. doi: 10.1126/science.1164860.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Cell Imaging, School of Biological Sciences, Bioscience Research Building, Crown Street, Liverpool, L69 7ZB, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19359585" target="_blank"〉PubMed〈/a〉
    Keywords: Active Transport, Cell Nucleus ; Animals ; Cell Line ; Cell Line, Tumor ; Cell Nucleus/metabolism ; Cytoplasm/metabolism ; Feedback, Physiological ; *Gene Expression ; Humans ; I-kappa B Proteins/metabolism ; Mice ; Models, Biological ; Models, Statistical ; NF-kappa B/*metabolism ; Phosphorylation ; Recombinant Fusion Proteins/metabolism ; Stochastic Processes ; Transcription Factor RelA/*metabolism ; *Transcription, Genetic ; Transfection ; Tumor Necrosis Factor-alpha/*metabolism
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  • 16
    Publication Date: 2009-08-01
    Description: Commensal bacteria in the lower intestine of mammals are 10 times as numerous as the body's cells. We investigated the relative importance of different immune mechanisms in limiting the spread of the intestinal microbiota. Here, we reveal a flexible continuum between innate and adaptive immune function in containing commensal microbes. Mice deficient in critical innate immune functions such as Toll-like receptor signaling or oxidative burst production spontaneously produce high-titer serum antibodies against their commensal microbiota. These antibody responses are functionally essential to maintain host-commensal mutualism in vivo in the face of innate immune deficiency. Spontaneous hyper-activation of adaptive immunity against the intestinal microbiota, secondary to innate immune deficiency, may clarify the underlying mechanisms of inflammatory diseases where immune dysfunction is implicated.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3730530/" 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/PMC3730530/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Slack, Emma -- Hapfelmeier, Siegfried -- Stecher, Barbel -- Velykoredko, Yuliya -- Stoel, Maaike -- Lawson, Melissa A E -- Geuking, Markus B -- Beutler, Bruce -- Tedder, Thomas F -- Hardt, Wolf-Dietrich -- Bercik, Premysl -- Verdu, Elena F -- McCoy, Kathy D -- Macpherson, Andrew J -- AI56363/AI/NIAID NIH HHS/ -- CA105001/CA/NCI NIH HHS/ -- R01 CA105001/CA/NCI NIH HHS/ -- U19 AI056363/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2009 Jul 31;325(5940):617-20. doi: 10.1126/science.1172747.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON L8S 4L8, Canada. andrew.macpherson@insel.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19644121" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Bacterial/biosynthesis/blood/*immunology ; Bacteremia/immunology/microbiology ; Bacteria/growth & development/*immunology/isolation & purification ; Bacterial Infections/immunology/microbiology ; CD4-Positive T-Lymphocytes/immunology ; Colony Count, Microbial ; Enterococcus faecalis/growth & development/immunology/isolation & purification ; Escherichia coli K12/growth & development/immunology/isolation & purification ; Germ-Free Life ; Immunity ; *Immunity, Innate ; Intestinal Mucosa/immunology/*microbiology ; Intestines/immunology/*microbiology ; Lymphoid Tissue/microbiology ; Mice ; Mice, Inbred C57BL ; Permeability ; Respiratory Burst ; Signal Transduction ; Specific Pathogen-Free Organisms ; Spleen/microbiology ; Toll-Like Receptors/genetics/*metabolism
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  • 17
    Publication Date: 2009-04-18
    Description: Genes are not simply turned on or off, but instead their expression is fine-tuned to meet the needs of a cell. How genes are modulated so precisely is not well understood. The glucocorticoid receptor (GR) regulates target genes by associating with specific DNA binding sites, the sequences of which differ between genes. Traditionally, these binding sites have been viewed only as docking sites. Using structural, biochemical, and cell-based assays, we show that GR binding sequences, differing by as little as a single base pair, differentially affect GR conformation and regulatory activity. We therefore propose that DNA is a sequence-specific allosteric ligand of GR that tailors the activity of the receptor toward specific target genes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2777810/" 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/PMC2777810/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meijsing, Sebastiaan H -- Pufall, Miles A -- So, Alex Y -- Bates, Darren L -- Chen, Lin -- Yamamoto, Keith R -- GM08537/GM/NIGMS NIH HHS/ -- R01 CA020535/CA/NCI NIH HHS/ -- R01 CA020535-31/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 17;324(5925):407-10. doi: 10.1126/science.1164265.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19372434" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; Cell Line, Tumor ; Crystallography, X-Ray ; DNA/*chemistry/*metabolism ; Humans ; Ligands ; Models, Molecular ; Mutation ; Protein Conformation ; Protein Isoforms/chemistry/metabolism ; Protein Multimerization ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Rats ; Receptors, Glucocorticoid/chemistry/genetics/*metabolism ; Transcriptional Activation
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  • 18
    Publication Date: 2009-04-11
    Description: Synonymous mutations do not alter the encoded protein, but they can influence gene expression. To investigate how, we engineered a synthetic library of 154 genes that varied randomly at synonymous sites, but all encoded the same green fluorescent protein (GFP). When expressed in Escherichia coli, GFP protein levels varied 250-fold across the library. GFP messenger RNA (mRNA) levels, mRNA degradation patterns, and bacterial growth rates also varied, but codon bias did not correlate with gene expression. Rather, the stability of mRNA folding near the ribosomal binding site explained more than half the variation in protein levels. In our analysis, mRNA folding and associated rates of translation initiation play a predominant role in shaping expression levels of individual genes, whereas codon bias influences global translation efficiency and cellular fitness.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3902468/" 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/PMC3902468/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kudla, Grzegorz -- Murray, Andrew W -- Tollervey, David -- Plotkin, Joshua B -- BB/D019621/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/DO19621/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/DO19621/1/Wellcome Trust/United Kingdom -- P50 GM068763/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 10;324(5924):255-8. doi: 10.1126/science.1170160.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology and Program in Applied Mathematics and Computational Science, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19359587" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Substitution ; Base Composition ; Cloning, Molecular ; *Codon ; Escherichia coli/*genetics/growth & development/metabolism ; *Gene Expression ; Gene Library ; Genes, Synthetic ; Green Fluorescent Proteins/*genetics/metabolism ; Mutation ; Nucleic Acid Conformation ; Protein Biosynthesis ; RNA Stability ; RNA, Bacterial/chemistry/genetics/metabolism ; RNA, Messenger/chemistry/*genetics/metabolism ; Spectrometry, Fluorescence
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  • 19
    Publication Date: 2009-04-18
    Description: Oxygen deprivation is rapidly deleterious for most organisms. However, Caenorhabditis elegans has developed the ability to survive anoxia for at least 48 hours. Mutations in the DAF-2/DAF-16 insulin-like signaling pathway promote such survival. We describe a pathway involving the HYL-2 ceramide synthase that acts independently of DAF-2. Loss of the ceramide synthase gene hyl-2 results in increased sensitivity of C. elegans to anoxia. C. elegans has two ceramide synthases, hyl-1 and hyl-2, that participate in ceramide biogenesis and affect its ability to survive anoxic conditions. In contrast to hyl-2(lf) mutants, hyl-1(lf) mutants are more resistant to anoxia than normal animals. HYL-1 and HYL-2 have complementary specificities for fatty acyl chains. These data indicate that specific ceramides produced by HYL-2 confer resistance to anoxia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Menuz, Vincent -- Howell, Kate S -- Gentina, Sebastien -- Epstein, Sharon -- Riezman, Isabelle -- Fornallaz-Mulhauser, Monique -- Hengartner, Michael O -- Gomez, Marie -- Riezman, Howard -- Martinou, Jean-Claude -- New York, N.Y. -- Science. 2009 Apr 17;324(5925):381-4. doi: 10.1126/science.1168532.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, University of Geneva, CH-1211 Geneva 4, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19372430" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Caenorhabditis elegans/cytology/genetics/*physiology ; Caenorhabditis elegans Proteins/*genetics/*metabolism ; *Cell Hypoxia ; Ceramides/biosynthesis/*physiology ; Gene Deletion ; Genes, Helminth ; Mutation ; Oxidoreductases/*genetics/*metabolism ; Oxygen/*physiology ; Receptor, Insulin/genetics/metabolism ; Saccharomyces cerevisiae/genetics/growth & development/physiology ; Sphingomyelins/biosynthesis/physiology ; Substrate Specificity ; Transformation, Genetic ; Transgenes
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  • 20
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-09-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2009 Sep 4;325(5945):1196-9. doi: 10.1126/science.325_1196.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19729633" target="_blank"〉PubMed〈/a〉
    Keywords: Altruism ; Animals ; Bacteriophages/physiology ; *Biological Evolution ; Competitive Behavior ; *Cooperative Behavior ; Dictyostelium/physiology ; Family ; Game Theory ; Games, Experimental ; Humans ; Mutation ; Pseudomonas aeruginosa/physiology ; Punishment ; Quorum Sensing ; Reward ; Selection, Genetic ; *Social Behavior ; Warfare
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  • 21
    Publication Date: 2009-05-30
    Description: Chronic viral infection is often associated with the dysfunction of virus-specific T cells. Our studies using Il21r-deficient (Il21r-/-) mice now suggest that interleukin-21 (IL-21) is critical for the long-term maintenance and functionality of CD8+ T cells and the control of chronic lymphocytic choriomeningitis virus infection in mice. Cell-autonomous IL-21 receptor (IL-21R)-dependent signaling by CD8+ T cells was required for sustained cell proliferation and cytokine production during chronic infection. Il21r-/- mice showed normal CD8+ T cell expansion, effector function, memory homeostasis, and recall responses during acute and after resolved infection with several other nonpersistent viruses. These data suggest that IL-21R signaling is required for the maintenance of polyfunctional T cells during chronic viral infections and have implications for understanding the immune response to other persisting antigens, such as tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Frohlich, Anja -- Kisielow, Jan -- Schmitz, Iwana -- Freigang, Stefan -- Shamshiev, Abdijapar T -- Weber, Jacqueline -- Marsland, Benjamin J -- Oxenius, Annette -- Kopf, Manfred -- New York, N.Y. -- Science. 2009 Jun 19;324(5934):1576-80. doi: 10.1126/science.1172815. Epub 2009 May 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biomedicine, Institute of Integrative Biology, ETH Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19478140" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD8-Positive T-Lymphocytes/*immunology ; Chronic Disease ; Humans ; Immunologic Memory ; Interferon-gamma/biosynthesis ; Lymphocytic Choriomeningitis/*immunology ; Mice ; Mice, Inbred C57BL ; Peptide Fragments/biosynthesis ; Receptors, Interleukin-21/*immunology ; Signal Transduction
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  • 22
    Publication Date: 2009-03-17
    Description: The YODA (YDA) mitogen-activated protein kinase pathway promotes elongation of the Arabidopsis zygote and development of its basal daughter cell into the extra-embryonic suspensor. Here, we show that the interleukin-1 receptor-associated kinase (IRAK)/Pelle-like kinase gene SHORT SUSPENSOR (SSP) regulates this pathway through a previously unknown parent-of-origin effect. SSP transcripts are produced in mature pollen but do not appear to be translated. Instead, they are delivered via the sperm cells to the zygote and the endosperm, where SSP protein transiently accumulates. Ectopic expression of SSP protein in the leaf epidermis is sufficient to activate YDA-dependent signaling. We propose that SSP protein produced from paternal transcripts upon fertilization triggers zygotic YDA activity, providing an essential temporal cue for the regulation of the asymmetric first division.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bayer, Martin -- Nawy, Tal -- Giglione, Carmela -- Galli, Mary -- Meinnel, Thierry -- Lukowitz, Wolfgang -- New York, N.Y. -- Science. 2009 Mar 13;323(5920):1485-8. doi: 10.1126/science.1167784.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19286558" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Arabidopsis/*embryology/*genetics/metabolism ; Arabidopsis Proteins/*metabolism ; Biocatalysis ; Catalytic Domain ; Cell Division ; Crosses, Genetic ; *Gene Expression Regulation, Plant ; Genomic Imprinting ; Interleukin-1 Receptor-Associated Kinases/chemistry/*genetics/*metabolism ; MAP Kinase Kinase Kinases/*metabolism ; MAP Kinase Signaling System ; Mutation ; Plants, Genetically Modified ; Pollen/metabolism ; Protein Binding ; Protein Structure, Tertiary ; RNA, Messenger/genetics/metabolism ; Recombinant Fusion Proteins ; Seeds/growth & development/metabolism ; Transcription, Genetic
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  • 23
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-07-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wiedemann, Nils -- Meisinger, Chris -- Pfanner, Nikolaus -- New York, N.Y. -- Science. 2009 Jul 24;325(5939):403-4. doi: 10.1126/science.1178016.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Biochemie und Molekularbiologie, Zentrum fur Biochemie und Molekulare Zellforschung and Centre for Biological Signalling Studies, Universitat Freiburg, 79104 Freiburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19628848" target="_blank"〉PubMed〈/a〉
    Keywords: Endoplasmic Reticulum/*physiology/ultrastructure ; Membrane Proteins/genetics/*physiology ; Mitochondria/*physiology/ultrastructure ; Mitochondrial Proteins/genetics/*physiology ; Signal Transduction ; Yeasts
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  • 24
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-01-10
    Description: Histone deacetylase 4 (HDAC4) shuttles between the nucleus and cytoplasm and serves as a nuclear co-repressor that regulates bone and muscle development. We report that HDAC4 regulates the survival of retinal neurons in the mouse in normal and pathological conditions. Reduction in HDAC4 expression during normal retinal development led to apoptosis of rod photoreceptors and bipolar (BP) interneurons, whereas overexpression reduced naturally occurring cell death of the BP cells. HDAC4 overexpression in a mouse model of retinal degeneration prolonged photoreceptor survival. The survival effect was due to the activity of HDAC4 in the cytoplasm and relied at least partly on the activity of hypoxia-inducible factor 1alpha (HIF1alpha). These data provide evidence that HDAC4 plays an important role in promoting the survival of retinal neurons.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3339762/" 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/PMC3339762/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Bo -- Cepko, Constance L -- EYO 14466/PHS HHS/ -- R01 EY014466/EY/NEI NIH HHS/ -- R01 EY014466-05/EY/NEI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Jan 9;323(5911):256-9. doi: 10.1126/science.1166226.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics and Howard Hughes Medical Institute, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA. bochen@genetics.med.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131628" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Apoptosis ; Cell Nucleus/enzymology ; Cell Survival ; Cytoplasm/enzymology ; Electroporation ; Histone Deacetylases/genetics/*metabolism ; Hypoxia-Inducible Factor 1, alpha Subunit/metabolism ; Mice ; Mutation ; Retina/cytology/*enzymology ; Retinal Degeneration/*enzymology/pathology ; Retinal Neurons/enzymology/*physiology ; Retinal Rod Photoreceptor Cells/enzymology/*physiology ; Rhodopsin/genetics/metabolism ; Transfection
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  • 25
    Publication Date: 2009-03-28
    Description: Precise wiring of the nervous system depends on coordinating the action of conserved families of proteins that direct axons to their appropriate targets. Slit-roundabout repulsion and netrin-deleted in colorectal cancer (DCC) (frazzled) attraction must be tightly regulated to control midline axon guidance in vertebrates and invertebrates, but the mechanism mediating this regulation is poorly defined. Here, we show that the Fra receptor has two genetically separable functions in regulating midline guidance in Drosophila. First, Fra mediates canonical chemoattraction in response to netrin, and, second, it functions independently of netrin to activate commissureless transcription, allowing attraction to be coupled to the down-regulation of repulsion in precrossing commissural axons.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4078765/" 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/PMC4078765/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, Long -- Garbe, David S -- Bashaw, Greg J -- NS046333/NS/NINDS NIH HHS/ -- NS054739/NS/NINDS NIH HHS/ -- R01 NS046333/NS/NINDS NIH HHS/ -- R01 NS046333-07/NS/NINDS NIH HHS/ -- R01 NS054739/NS/NINDS NIH HHS/ -- R01 NS054739-03/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2009 May 15;324(5929):944-7. doi: 10.1126/science.1171320. Epub 2009 Mar 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, University of Pennsylvania School of Medicine, 1113 BRB2/3, 421 Curie Boulevard, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19325078" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology ; Drosophila Proteins/*genetics/metabolism ; Drosophila melanogaster/embryology/*genetics/metabolism ; *Gene Expression Regulation, Developmental ; Membrane Proteins/*genetics/metabolism ; Mutation ; Nerve Growth Factors/metabolism ; Nerve Tissue Proteins/genetics/metabolism ; Nervous System/embryology/growth & development ; Neurons/*physiology ; RNA, Messenger/genetics/metabolism ; Receptors, Cell Surface/genetics/*metabolism ; Receptors, Immunologic/genetics ; Signal Transduction ; Transcription, Genetic ; *Transcriptional Activation
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  • 26
    Publication Date: 2009-04-04
    Description: Mitochondria continuously undergo two opposing processes, fission and fusion. The disruption of this dynamic equilibrium may herald cell injury or death and may contribute to developmental and neurodegenerative disorders. Nitric oxide functions as a signaling molecule, but in excess it mediates neuronal injury, in part via mitochondrial fission or fragmentation. However, the underlying mechanism for nitric oxide-induced pathological fission remains unclear. We found that nitric oxide produced in response to beta-amyloid protein, thought to be a key mediator of Alzheimer's disease, triggered mitochondrial fission, synaptic loss, and neuronal damage, in part via S-nitrosylation of dynamin-related protein 1 (forming SNO-Drp1). Preventing nitrosylation of Drp1 by cysteine mutation abrogated these neurotoxic events. SNO-Drp1 is increased in brains of human Alzheimer's disease patients and may thus contribute to the pathogenesis of neurodegeneration.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2823371/" 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/PMC2823371/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cho, Dong-Hyung -- Nakamura, Tomohiro -- Fang, Jianguo -- Cieplak, Piotr -- Godzik, Adam -- Gu, Zezong -- Lipton, Stuart A -- P01 ES016738/ES/NIEHS NIH HHS/ -- P01 ES016738-01/ES/NIEHS NIH HHS/ -- P01 ES016738-010003/ES/NIEHS NIH HHS/ -- P01 ES016738-02/ES/NIEHS NIH HHS/ -- P01 ES016738-020003/ES/NIEHS NIH HHS/ -- P01 HD029587/HD/NICHD NIH HHS/ -- P01 HD029587-16/HD/NICHD NIH HHS/ -- P01 HD29587/HD/NICHD NIH HHS/ -- P30 NS057096/NS/NINDS NIH HHS/ -- P30 NS057096-04/NS/NINDS NIH HHS/ -- R01 EY005477/EY/NEI NIH HHS/ -- R01 EY005477-25/EY/NEI NIH HHS/ -- R01 EY05477/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 3;324(5923):102-5. doi: 10.1126/science.1171091.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Neuroscience, Aging, and Stem Cell Research, Burnham Institute for Medical Research, 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/19342591" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/metabolism/pathology ; Amino Acid Motifs ; Amyloid beta-Peptides/*metabolism/pharmacology ; Animals ; Cell Line ; Cell Line, Tumor ; Cerebral Cortex/cytology ; Cysteine/analogs & derivatives/genetics/metabolism/pharmacology ; Female ; GTP Phosphohydrolases/chemistry/*metabolism ; Humans ; Male ; Mice ; Mice, Transgenic ; Microtubule-Associated Proteins/chemistry/*metabolism ; Mitochondria/drug effects/physiology/*ultrastructure ; Mitochondrial Proteins/chemistry/*metabolism ; Models, Molecular ; Mutation ; Neurons/drug effects/*ultrastructure ; Nitric Oxide/*metabolism ; Peptide Fragments/metabolism/pharmacology ; Protein Multimerization ; Protein Structure, Tertiary ; S-Nitrosothiols/pharmacology
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  • 27
    Publication Date: 2009-09-26
    Description: To explore the mechanisms and evolution of cell-cycle control, we analyzed the position and conservation of large numbers of phosphorylation sites for the cyclin-dependent kinase Cdk1 in the budding yeast Saccharomyces cerevisiae. We combined specific chemical inhibition of Cdk1 with quantitative mass spectrometry to identify the positions of 547 phosphorylation sites on 308 Cdk1 substrates in vivo. Comparisons of these substrates with orthologs throughout the ascomycete lineage revealed that the position of most phosphorylation sites is not conserved in evolution; instead, clusters of sites shift position in rapidly evolving disordered regions. We propose that the regulation of protein function by phosphorylation often depends on simple nonspecific mechanisms that disrupt or enhance protein-protein interactions. The gain or loss of phosphorylation sites in rapidly evolving regions could facilitate the evolution of kinase-signaling circuits.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2813701/" 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/PMC2813701/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holt, Liam J -- Tuch, Brian B -- Villen, Judit -- Johnson, Alexander D -- Gygi, Steven P -- Morgan, David O -- GM037049/GM/NIGMS NIH HHS/ -- GM50684/GM/NIGMS NIH HHS/ -- HG3456/HG/NHGRI NIH HHS/ -- R01 GM069901/GM/NIGMS NIH HHS/ -- R01 GM069901-06/GM/NIGMS NIH HHS/ -- R01 HG003456/HG/NHGRI NIH HHS/ -- R01 HG003456-06/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2009 Sep 25;325(5948):1682-6. doi: 10.1126/science.1172867.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Physiology and Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19779198" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Ascomycota/chemistry/genetics/metabolism ; *Biological Evolution ; CDC2 Protein Kinase/antagonists & inhibitors/*metabolism ; *Cell Cycle ; Cell Physiological Processes ; Computational Biology ; *Evolution, Molecular ; Molecular Sequence Data ; Phosphopeptides/chemistry/*metabolism ; Phosphorylation ; Phylogeny ; Protein Conformation ; Protein Structure, Tertiary ; Saccharomyces cerevisiae/chemistry/genetics/metabolism ; Saccharomyces cerevisiae Proteins/chemistry/*metabolism ; *Signal Transduction ; Substrate Specificity
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  • 28
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wijnen, Herman -- R01 GM078339/GM/NIGMS NIH HHS/ -- R01 GM078339-03/GM/NIGMS NIH HHS/ -- R01 GM78839/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 May 1;324(5927):598-9. doi: 10.1126/science.1174132.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Virginia, Charlottesville, VA 22904, USA. hw9u@virginai.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19407188" target="_blank"〉PubMed〈/a〉
    Keywords: ARNTL Transcription Factors ; Acetylation ; Acrylamides/pharmacology ; Animals ; Basic Helix-Loop-Helix Transcription Factors/genetics/metabolism ; *Biological Clocks ; CLOCK Proteins ; *Circadian Rhythm ; Cytokines/antagonists & inhibitors/genetics/*metabolism ; *Feedback, Physiological ; Gene Expression Regulation ; Mice ; Mutation ; NAD/*metabolism ; Nicotinamide Phosphoribosyltransferase/antagonists & ; inhibitors/genetics/*metabolism ; Piperidines/pharmacology ; Sirtuin 1 ; Sirtuins/*metabolism ; Trans-Activators/genetics/metabolism ; Transcription Factors/genetics/metabolism ; Transcription, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 29
    Publication Date: 2009-01-20
    Description: Like many species, the model plant Arabidopsis thaliana exhibits multiple different life histories in natural environments. We grew mutants impaired in different signaling pathways in field experiments across the species' native European range in order to dissect the mechanisms underlying this variation. Unexpectedly, mutational loss at loci implicated in the cold requirement for flowering had little effect on life history except in late-summer cohorts. A genetically informed photothermal model of progression toward flowering explained most of the observed variation and predicted an abrupt transition from autumn flowering to spring flowering in late-summer germinants. Environmental signals control the timing of this transition, creating a critical window of acute sensitivity to genetic and climatic change that may be common for seasonally regulated life history traits.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilczek, Amity M -- Roe, Judith L -- Knapp, Mary C -- Cooper, Martha D -- Lopez-Gallego, Cristina -- Martin, Laura J -- Muir, Christopher D -- Sim, Sheina -- Walker, Alexis -- Anderson, Jillian -- Egan, J Franklin -- Moyers, Brook T -- Petipas, Renee -- Giakountis, Antonis -- Charbit, Erika -- Coupland, George -- Welch, Stephen M -- Schmitt, Johanna -- New York, N.Y. -- Science. 2009 Feb 13;323(5916):930-4. doi: 10.1126/science.1165826. Epub 2009 Jan 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, Brown University, Providence, RI 02912, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19150810" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Arabidopsis/*genetics/*growth & development ; Environment ; Flowers/growth & development ; Mutation ; Photoperiod ; Seasons ; Signal Transduction
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  • 30
    Publication Date: 2009-03-07
    Description: Patten recognition receptors, which recognize pathogens or components of injured cells (danger), trigger activation of the innate immune system. Whether and how the host distinguishes between danger- versus pathogen-associated molecular patterns remains unresolved. We report that CD24-deficient mice exhibit increased susceptibility to danger- but not pathogen-associated molecular patterns. CD24 associates with high mobility group box 1, heat shock protein 70, and heat shock protein 90; negatively regulates their stimulatory activity; and inhibits nuclear factor kappaB (NF-kappaB) activation. This occurs at least in part through CD24 association with Siglec-10 in humans or Siglec-G in mice. Our results reveal that the CD24-Siglec G pathway protects the host against a lethal response to pathological cell death and discriminates danger- versus pathogen-associated molecular patterns.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2765686/" 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/PMC2765686/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Guo-Yun -- Tang, Jie -- Zheng, Pan -- Liu, Yang -- AI064350/AI/NIAID NIH HHS/ -- CA112001/CA/NCI NIH HHS/ -- CA58033/CA/NCI NIH HHS/ -- R01 AI064350/AI/NIAID NIH HHS/ -- R01 AI064350-04/AI/NIAID NIH HHS/ -- R01 CA058033/CA/NCI NIH HHS/ -- R01 CA058033-16A2/CA/NCI NIH HHS/ -- R01 CA112001/CA/NCI NIH HHS/ -- R01 CA112001-02/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Mar 27;323(5922):1722-5. doi: 10.1126/science.1168988. Epub 2009 Mar 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Immunotherapy, Department of Surgery, University of Michigan School of Medicine, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19264983" target="_blank"〉PubMed〈/a〉
    Keywords: Acetaminophen/toxicity ; Animals ; Antigens, CD24/genetics/*metabolism ; Cytokines/metabolism ; Dendritic Cells/immunology ; HMGB1 Protein/chemistry/immunology/*metabolism ; HSP70 Heat-Shock Proteins/metabolism ; HSP90 Heat-Shock Proteins/metabolism ; Humans ; *Immunity, Innate ; Immunoprecipitation ; Inflammation/*immunology ; Lectins/*metabolism ; Lipopolysaccharides/toxicity ; Liver/immunology/pathology ; Mice ; Mutant Proteins/chemistry/metabolism ; Necrosis/chemically induced/immunology ; Protein Structure, Tertiary ; Protein Tyrosine Phosphatase, Non-Receptor Type 6/metabolism ; Receptors, Antigen, B-Cell/*metabolism ; Receptors, Cell Surface/metabolism ; Receptors, Pattern Recognition/immunology/metabolism ; Signal Transduction ; Transcription Factor RelA/metabolism
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  • 31
    Publication Date: 2009-09-04
    Description: The Hedgehog (Hh) signaling pathway is inappropriately activated in certain human cancers, including medulloblastoma, an aggressive brain tumor. GDC-0449, a drug that inhibits Hh signaling by targeting the serpentine receptor Smoothened (SMO), has produced promising anti-tumor responses in early clinical studies of cancers driven by mutations in this pathway. To evaluate the mechanism of resistance in a medulloblastoma patient who had relapsed after an initial response to GDC-0449, we determined the mutational status of Hh signaling genes in the tumor after disease progression. We identified an amino acid substitution at a conserved aspartic acid residue of SMO that had no effect on Hh signaling but disrupted the ability of GDC-0449 to bind SMO and suppress this pathway. A mutation altering the same amino acid also arose in a GDC-0449-resistant mouse model of medulloblastoma. These findings show that acquired mutations in a serpentine receptor with features of a G protein-coupled receptor can serve as a mechanism of drug resistance in human cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yauch, Robert L -- Dijkgraaf, Gerrit J P -- Alicke, Bruno -- Januario, Thomas -- Ahn, Christina P -- Holcomb, Thomas -- Pujara, Kanan -- Stinson, Jeremy -- Callahan, Christopher A -- Tang, Tracy -- Bazan, J Fernando -- Kan, Zhengyan -- Seshagiri, Somasekar -- Hann, Christine L -- Gould, Stephen E -- Low, Jennifer A -- Rudin, Charles M -- de Sauvage, Frederic J -- New York, N.Y. -- Science. 2009 Oct 23;326(5952):572-4. doi: 10.1126/science.1179386. Epub 2009 Sep 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genentech, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19726788" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Anilides/metabolism/pharmacology/*therapeutic use ; Animals ; Antineoplastic Agents/metabolism/pharmacology/*therapeutic use ; Brain Neoplasms/*drug therapy/*genetics/pathology ; Cell Line, Tumor ; Cinnamates/pharmacology ; Drug Resistance, Neoplasm ; Hedgehog Proteins/antagonists & inhibitors/genetics/*metabolism ; Humans ; Medulloblastoma/*drug therapy/*genetics/pathology ; Mice ; Molecular Sequence Data ; Mutant Proteins/antagonists & inhibitors/chemistry/metabolism ; Mutation, Missense ; Neoplasm Metastasis ; Protein Conformation ; Pyridines/metabolism/pharmacology/*therapeutic use ; Receptors, Cell Surface/genetics/metabolism ; Receptors, G-Protein-Coupled/antagonists & ; inhibitors/chemistry/*genetics/metabolism ; Signal Transduction ; Veratrum Alkaloids/pharmacology
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  • 32
    Publication Date: 2009-12-19
    Description: The evolution of cis regulatory elements (enhancers) of developmentally regulated genes plays a large role in the evolution of animal morphology. However, the mutational path of enhancer evolution--the number, origin, effect, and order of mutations that alter enhancer function--has not been elucidated. Here, we localized a suite of substitutions in a modular enhancer of the ebony locus responsible for adaptive melanism in a Ugandan Drosophila population. We show that at least five mutations with varied effects arose recently from a combination of standing variation and new mutations and combined to create an allele of large phenotypic effect. We underscore how enhancers are distinct macromolecular entities, subject to fundamentally different, and generally more relaxed, functional constraints relative to protein sequences.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3363996/" 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/PMC3363996/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rebeiz, Mark -- Pool, John E -- Kassner, Victoria A -- Aquadro, Charles F -- Carroll, Sean B -- F32GM78972/GM/NIGMS NIH HHS/ -- F32HG004182/HG/NHGRI NIH HHS/ -- GM036431/GM/NIGMS NIH HHS/ -- R01 GM036431/GM/NIGMS NIH HHS/ -- R01 GM036431-22/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Dec 18;326(5960):1663-7. doi: 10.1126/science.1178357.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Laboratory of Molecular Biology, University of Wisconsin, Madison, WI 53706, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20019281" target="_blank"〉PubMed〈/a〉
    Keywords: Abdomen ; Adaptation, Biological ; Alleles ; Animals ; Animals, Genetically Modified ; *Biological Evolution ; DNA-Binding Proteins/*genetics ; Drosophila Proteins/*genetics ; Drosophila melanogaster/*genetics/growth & development/physiology ; *Enhancer Elements, Genetic ; Evolution, Molecular ; Gene Expression Regulation, Developmental ; Haplotypes ; Molecular Sequence Data ; Mutation ; Pigmentation/*genetics ; Polymorphism, Genetic ; Uganda
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  • 33
    Publication Date: 2009-12-08
    Description: To understand basic principles of bacterial metabolism organization and regulation, but also the impact of genome size, we systematically studied one of the smallest bacteria, Mycoplasma pneumoniae. A manually curated metabolic network of 189 reactions catalyzed by 129 enzymes allowed the design of a defined, minimal medium with 19 essential nutrients. More than 1300 growth curves were recorded in the presence of various nutrient concentrations. Measurements of biomass indicators, metabolites, and 13C-glucose experiments provided information on directionality, fluxes, and energetics; integration with transcription profiling enabled the global analysis of metabolic regulation. Compared with more complex bacteria, the M. pneumoniae metabolic network has a more linear topology and contains a higher fraction of multifunctional enzymes; general features such as metabolite concentrations, cellular energetics, adaptability, and global gene expression responses are similar, however.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yus, Eva -- Maier, Tobias -- Michalodimitrakis, Konstantinos -- van Noort, Vera -- Yamada, Takuji -- Chen, Wei-Hua -- Wodke, Judith A H -- Guell, Marc -- Martinez, Sira -- Bourgeois, Ronan -- Kuhner, Sebastian -- Raineri, Emanuele -- Letunic, Ivica -- Kalinina, Olga V -- Rode, Michaela -- Herrmann, Richard -- Gutierrez-Gallego, Ricardo -- Russell, Robert B -- Gavin, Anne-Claude -- Bork, Peer -- Serrano, Luis -- New York, N.Y. -- Science. 2009 Nov 27;326(5957):1263-8. doi: 10.1126/science.1177263.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Genomic Regulation (CRG) and Universitat Pompeu Fabra, Avenida Dr. Aiguader 88, 08003 Barcelona, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965476" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Bacterial Proteins/*metabolism ; Culture Media ; Energy Metabolism ; Enzymes/genetics/metabolism ; Gene Expression Profiling ; *Gene Expression Regulation, Bacterial ; *Genome, Bacterial ; Glycolysis ; *Metabolic Networks and Pathways ; Mycoplasma pneumoniae/*genetics/growth & development/*metabolism ; RNA, Bacterial/genetics/metabolism ; Signal Transduction ; Systems Biology ; Transcription, Genetic ; rRNA Operon
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  • 34
    Publication Date: 2009-01-20
    Description: The nematode Caenorhabditis elegans responds to pathogenic bacteria with conserved innate immune responses and pathogen avoidance behaviors. We investigated natural variation in C. elegans resistance to pathogen infection. With the use of quantitative genetic analysis, we determined that the pathogen susceptibility difference between the laboratory wild-type strain N2 and the wild isolate CB4856 is caused by a polymorphism in the npr-1 gene, which encodes a homolog of the mammalian neuropeptide Y receptor. We show that the mechanism of NPR-1-mediated pathogen resistance is through oxygen-dependent behavioral avoidance rather than direct regulation of innate immunity. For C. elegans, bacteria represent food but also a potential source of infection. Our data underscore the importance of behavioral responses to oxygen levels in finding an optimal balance between these potentially conflicting cues.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2748219/" 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/PMC2748219/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reddy, Kirthi C -- Andersen, Erik C -- Kruglyak, Leonid -- Kim, Dennis H -- GM071508/GM/NIGMS NIH HHS/ -- GM084477/GM/NIGMS NIH HHS/ -- HG004321/HG/NHGRI NIH HHS/ -- R01 GM084477/GM/NIGMS NIH HHS/ -- R01 GM084477-02/GM/NIGMS NIH HHS/ -- R01 HG004321/HG/NHGRI NIH HHS/ -- R01 HG004321-02/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Jan 16;323(5912):382-4. doi: 10.1126/science.1166527.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19150845" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal ; Caenorhabditis elegans/*genetics/immunology/*microbiology/physiology ; Caenorhabditis elegans Proteins/*genetics/*physiology ; Cues ; Genes, Helminth ; Immunity, Innate ; Movement ; Mutation ; Oxygen/physiology ; Polymorphism, Genetic ; Pseudomonas aeruginosa/*pathogenicity/physiology ; Receptors, Neuropeptide Y/*genetics/*physiology
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  • 35
    Publication Date: 2009-11-07
    Description: Virtually all of the 560 human proteases are stored as inactive proenyzmes and are strictly regulated. We report the identification and characterization of the first small molecules that directly activate proenzymes, the apoptotic procaspases-3 and -6. It is surprising that these compounds induce autoproteolytic activation by stabilizing a conformation that is both more active and more susceptible to intermolecular proteolysis. These procaspase activators bypass the normal upstream proapoptotic signaling cascades and induce rapid apoptosis in a variety of cell lines. Systematic biochemical and biophysical analyses identified a cluster of mutations in procaspase-3 that resist small-molecule activation both in vitro and in cells. Compounds that induce gain of function are rare, and the activators reported here will enable direct control of the executioner caspases in apoptosis and in cellular differentiation. More generally, these studies presage the discovery of other proenzyme activators to explore fundamental processes of proenzyme activation and their fate-determining roles in biology.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2886848/" 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/PMC2886848/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolan, Dennis W -- Zorn, Julie A -- Gray, Daniel C -- Wells, James A -- F32 CA119641/CA/NCI NIH HHS/ -- F32 CA119641-03/CA/NCI NIH HHS/ -- R01 CA136779/CA/NCI NIH HHS/ -- R21 N5057022/PHS HHS/ -- New York, N.Y. -- Science. 2009 Nov 6;326(5954):853-8. doi: 10.1126/science.1177585.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmaceutical Chemistry, University of California, San Francisco, Byers Hall, 1700 4th Street, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19892984" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Benzopyrans/chemistry/*metabolism/pharmacology ; Biocatalysis ; Caspase 3/chemistry/genetics/*metabolism ; Caspase 6/chemistry/genetics/*metabolism ; Caspase Inhibitors ; Catalytic Domain ; Cell Line, Transformed ; Cell Line, Tumor ; Cells, Cultured ; Enzyme Activation ; Enzyme Activators/chemistry/*metabolism/pharmacology ; Enzyme Inhibitors/metabolism/pharmacology ; Enzyme Precursors/antagonists & inhibitors/chemistry/genetics/*metabolism ; Granzymes/metabolism ; Humans ; Imidazoles/chemistry/*metabolism/pharmacology ; Kinetics ; Mice ; Molecular Structure ; Mutagenesis ; Pyridines/chemistry/*metabolism/pharmacology ; Signal Transduction ; Small Molecule Libraries/chemistry/metabolism
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  • 36
    Publication Date: 2009-07-18
    Description: Effective B cell-mediated immunity and antibody responses often require help from CD4+ T cells. It is thought that a distinct CD4+ effector T cell subset, called T follicular helper cells (T(FH)), provides this help; however, the molecular requirements for T(FH) differentiation are unknown. We found that expression of the transcription factor Bcl6 in CD4+ T cells is both necessary and sufficient for in vivo T(FH) differentiation and T cell help to B cells in mice. In contrast, the transcription factor Blimp-1, an antagonist of Bcl6, inhibits T(FH) differentiation and help, thereby preventing B cell germinal center and antibody responses. These findings demonstrate that T(FH) cells are required for proper B cell responses in vivo and that Bcl6 and Blimp-1 play central but opposing roles in T(FH) differentiation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2766560/" 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/PMC2766560/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Johnston, Robert J -- Poholek, Amanda C -- DiToro, Daniel -- Yusuf, Isharat -- Eto, Danelle -- Barnett, Burton -- Dent, Alexander L -- Craft, Joe -- Crotty, Shane -- AR40072/AR/NIAMS NIH HHS/ -- AR44076/AR/NIAMS NIH HHS/ -- P30 AR053495/AR/NIAMS NIH HHS/ -- R01 063107/PHS HHS/ -- R01 072543/PHS HHS/ -- R01 AI063107/AI/NIAID NIH HHS/ -- R01 AI063107-01A1/AI/NIAID NIH HHS/ -- R01 AI072543/AI/NIAID NIH HHS/ -- R01 AI072543-01A1/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2009 Aug 21;325(5943):1006-10. doi: 10.1126/science.1175870. Epub 2009 Jul 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology (LIAI), 9420 Athena Circle, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19608860" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibody Formation ; Arenaviridae Infections/immunology ; B-Lymphocytes/immunology ; CD4-Positive T-Lymphocytes/cytology/immunology ; Cell Differentiation ; Cell Lineage ; Cytokines/metabolism ; DNA-Binding Proteins/genetics/*metabolism ; Gene Expression Regulation ; Germinal Center/cytology/immunology ; Lymphocyte Activation ; Lymphocytic choriomeningitis virus/immunology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; RNA, Messenger/genetics/metabolism ; Signal Transduction ; T-Lymphocyte Subsets/cytology/*immunology ; T-Lymphocytes, Helper-Inducer/cytology/*immunology ; Transcription Factors/genetics/*metabolism
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  • 37
    Publication Date: 2009-11-07
    Description: The LKB1 tumor suppressor is a protein kinase that controls the activity of adenosine monophosphate-activated protein kinase (AMPK). LKB1 activity is regulated by the pseudokinase STRADalpha and the scaffolding protein MO25alpha through an unknown, phosphorylation-independent, mechanism. We describe the structure of the core heterotrimeric LKB1-STRADalpha-MO25alpha complex, revealing an unusual allosteric mechanism of LKB1 activation. STRADalpha adopts a closed conformation typical of active protein kinases and binds LKB1 as a pseudosubstrate. STRADalpha and MO25alpha promote the active conformation of LKB1, which is stabilized by MO25alpha interacting with the LKB1 activation loop. This previously undescribed mechanism of kinase activation may be relevant to understanding the evolution of other pseudokinases. The structure also reveals how mutations found in Peutz-Jeghers syndrome and in various sporadic cancers impair LKB1 function.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3518268/" 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/PMC3518268/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zeqiraj, Elton -- Filippi, Beatrice Maria -- Deak, Maria -- Alessi, Dario R -- van Aalten, Daan M F -- 087590/Wellcome Trust/United Kingdom -- C33794/A10969/Cancer Research UK/United Kingdom -- G0900138/Medical Research Council/United Kingdom -- MC_U127070193/Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2009 Dec 18;326(5960):1707-11. doi: 10.1126/science.1178377. Epub 2009 Nov 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Microbiology, College of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19892943" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/metabolism ; Adaptor Proteins, Vesicular Transport/*chemistry/metabolism ; Allosteric Regulation ; Amino Acid Sequence ; Binding Sites ; Calcium-Binding Proteins/*chemistry/metabolism ; Crystallography, X-Ray ; Enzyme Activation ; Humans ; Models, Molecular ; Molecular Sequence Data ; Multiprotein Complexes/chemistry/metabolism ; Mutant Proteins/chemistry/metabolism ; Mutation ; Phosphorylation ; Protein Binding ; Protein Conformation ; Protein Interaction Domains and Motifs ; Protein Structure, Tertiary ; Protein-Serine-Threonine Kinases/*chemistry/metabolism
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  • 38
    Publication Date: 2009-01-10
    Description: Expression and signaling of CD30, a tumor necrosis factor receptor family member, is up-regulated in numerous lymphoid-derived neoplasias, most notably anaplastic large-cell lymphoma (ALCL) and Hodgkin's lymphoma. To gain insight into the mechanism of CD30 signaling, we used an affinity purification strategy that led to the identification of the aryl hydrocarbon receptor nuclear translocator (ARNT) as a CD30-interacting protein that modulated the activity of the RelB subunit of the transcription factor nuclear factor kappaB (NF-kappaB). ALCL cells that were deficient in ARNT exhibited defects in RelB recruitment to NF-kappaB-responsive promoters, whereas RelA recruitment to the same sites was potentiated, resulting in the augmented expression of these NF-kappaB-responsive genes. These findings indicate that ARNT functions in concert with RelB in a CD30-induced negative feedback mechanism.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2682336/" 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/PMC2682336/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wright, Casey W -- Duckett, Colin S -- R01 GM067827/GM/NIGMS NIH HHS/ -- R01 GM067827-04/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 9;323(5911):251-5. doi: 10.1126/science.1162818.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131627" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antigens, CD30/*metabolism ; Aryl Hydrocarbon Receptor Nuclear Translocator/chemistry/genetics/*metabolism ; Cell Line ; Cell Line, Tumor ; DNA/metabolism ; Feedback, Physiological ; Gene Expression Regulation ; Humans ; Lymphoma, Large-Cell, Anaplastic/genetics/metabolism ; Molecular Sequence Data ; NF-kappa B/genetics/metabolism ; Promoter Regions, Genetic ; Protein Structure, Tertiary ; Receptors, Tumor Necrosis Factor, Type II/metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Transcription Factor RelB/genetics/*metabolism ; *Transcription, Genetic ; Transcriptional Activation
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  • 39
    Publication Date: 2009-04-04
    Description: Dysregulation of the fear system is at the core of many psychiatric disorders. Much progress has been made in uncovering the neural basis of fear learning through studies in which associative emotional memories are formed by pairing an initially neutral stimulus (conditioned stimulus, CS; e.g., a tone) to an unconditioned stimulus (US; e.g., a shock). Despite recent advances, the question of how to persistently weaken aversive CS-US associations, or dampen traumatic memories in pathological cases, remains a major dilemma. Two paradigms (blockade of reconsolidation and extinction) have been used in the laboratory to reduce acquired fear. Unfortunately, their clinical efficacy is limited: Reconsolidation blockade typically requires potentially toxic drugs, and extinction is not permanent. Here, we describe a behavioral design in which a fear memory in rats is destabilized and reinterpreted as safe by presenting an isolated retrieval trial before an extinction session. This procedure permanently attenuates the fear memory without the use of drugs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3625935/" 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/PMC3625935/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Monfils, Marie-H -- Cowansage, Kiriana K -- Klann, Eric -- LeDoux, Joseph E -- F31 MH083472/MH/NIMH NIH HHS/ -- F31 MH083472-01A1/MH/NIMH NIH HHS/ -- F31MH083472/MH/NIMH NIH HHS/ -- K05 MH067048/MH/NIMH NIH HHS/ -- NS034007/NS/NINDS NIH HHS/ -- NS047384/NS/NINDS NIH HHS/ -- P50 MH058911/MH/NIMH NIH HHS/ -- R01 MH046516/MH/NIMH NIH HHS/ -- R37 MH038774/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2009 May 15;324(5929):951-5. doi: 10.1126/science.1167975. Epub 2009 Apr 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Neural Science, New York University, New York, NY 10003, USA. monfils@mail.utexas.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19342552" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/physiology ; Animals ; Conditioning, Classical ; Extinction, Psychological/*physiology ; *Fear ; Male ; Memory/*physiology ; Mental Recall/*physiology ; Phosphorylation ; Rats ; Receptors, AMPA/metabolism
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  • 40
    Publication Date: 2009-04-04
    Description: Plants possess inducible systemic defense responses when locally infected by pathogens. Bacterial infection results in the increased accumulation of the mobile metabolite azelaic acid, a nine-carbon dicarboxylic acid, in the vascular sap of Arabidopsis that confers local and systemic resistance against the pathogen Pseudomonas syringae. Azelaic acid primes plants to accumulate salicylic acid (SA), a known defense signal, upon infection. Mutation of the AZELAIC ACID INDUCED 1 (AZI1) gene, which is induced by azelaic acid, results in the specific loss of systemic immunity triggered by pathogen or azelaic acid and of the priming of SA induction in plants. Furthermore, the predicted secreted protein AZI1 is also important for generating vascular sap that confers disease resistance. Thus, azelaic acid and AZI1 are components of plant systemic immunity involved in priming defenses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jung, Ho Won -- Tschaplinski, Timothy J -- Wang, Lin -- Glazebrook, Jane -- Greenberg, Jean T -- New York, N.Y. -- Science. 2009 Apr 3;324(5923):89-91. doi: 10.1126/science.1170025.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Cell Biology, University of Chicago, 1103 East 57th Street EBC410, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19342588" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/genetics/*immunology/metabolism/*microbiology ; Arabidopsis Proteins/*genetics/physiology ; Dicarboxylic Acids/*metabolism/pharmacology ; Gene Expression Regulation, Plant ; *Genes, Plant ; Immunity, Innate ; Mutation ; Oligonucleotide Array Sequence Analysis ; Plant Diseases/*immunology ; Plant Leaves/immunology/metabolism ; Pseudomonas syringae/growth & development/*immunology/pathogenicity ; Salicylic Acid/metabolism ; Signal Transduction
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  • 41
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-08
    Description: The extracellular matrix (ECM) and ECM proteins are important in phenomena as diverse as developmental patterning, stem cell niches, cancer, and genetic diseases. The ECM has many effects beyond providing structural support. ECM proteins typically include multiple, independently folded domains whose sequences and arrangement are highly conserved. Some of these domains bind adhesion receptors such as integrins that mediate cell-matrix adhesion and also transduce signals into cells. However, ECM proteins also bind soluble growth factors and regulate their distribution, activation, and presentation to cells. As organized, solid-phase ligands, ECM proteins can integrate complex, multivalent signals to cells in a spatially patterned and regulated fashion. These properties need to be incorporated into considerations of the functions of the ECM.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3536535/" 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/PMC3536535/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hynes, Richard O -- P01 HL066105/HL/NHLBI NIH HHS/ -- R01 CA017007/CA/NCI NIH HHS/ -- U54 CA126515/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Nov 27;326(5957):1216-9. doi: 10.1126/science.1176009.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. rohynes@mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965464" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; *Cell Physiological Processes ; Extracellular Matrix/*physiology ; Extracellular Matrix Proteins/chemistry/*metabolism ; Humans ; Intercellular Signaling Peptides and Proteins/metabolism ; Models, Biological ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Structure, Tertiary ; Signal Transduction ; Transforming Growth Factor beta/metabolism
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  • 42
    Publication Date: 2009-07-11
    Description: Sensory information detected by the peripheral nervous system is represented as a topographic map in the brain. It has long been thought that the topography of the map is determined by graded positional cues that are expressed by the target. Here, we analyzed the pre-target axon sorting for olfactory map formation in mice. In olfactory sensory neurons, an axon guidance receptor, Neuropilin-1, and its repulsive ligand, Semaphorin-3A, are expressed in a complementary manner. We found that expression levels of Neuropilin-1 determined both pre-target sorting and projection sites of axons. Olfactory sensory neuron-specific knockout of Semaphorin-3A perturbed axon sorting and altered the olfactory map topography. Thus, pre-target axon sorting plays an important role in establishing the topographic order based on the relative levels of guidance molecules expressed by axons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Imai, Takeshi -- Yamazaki, Takahiro -- Kobayakawa, Reiko -- Kobayakawa, Ko -- Abe, Takaya -- Suzuki, Misao -- Sakano, Hitoshi -- New York, N.Y. -- Science. 2009 Jul 31;325(5940):585-90. doi: 10.1126/science.1173596. Epub 2009 Jul 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biophysics and Biochemistry, Graduate School of Science, University of Tokyo, Tokyo 113-0032, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19589963" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology ; Brain Mapping ; Cell Communication ; Cues ; Cyclic AMP/metabolism ; Ligands ; Mice ; Mice, Knockout ; Mice, Transgenic ; Neuroglia/physiology ; Neuropilin-1/*metabolism ; Olfactory Bulb/cytology/*physiology ; Olfactory Mucosa/cytology/physiology ; Olfactory Pathways/cytology/*physiology ; Olfactory Receptor Neurons/cytology/*physiology ; Receptors, Odorant/metabolism ; Semaphorin-3A/metabolism ; Signal Transduction
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  • 43
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-10-17
    Description: An emerging set of methods enables an experimental dialogue with biological systems composed of many interacting cell types--in particular, with neural circuits in the brain. These methods are sometimes called "optogenetic" because they use light-responsive proteins ("opto-") encoded in DNA ("-genetic"). Optogenetic devices can be introduced into tissues or whole organisms by genetic manipulation and be expressed in anatomically or functionally defined groups of cells. Two kinds of devices perform complementary functions: Light-driven actuators control electrochemical signals, while light-emitting sensors report them. Actuators pose questions by delivering targeted perturbations; sensors (and other measurements) signal answers. These catechisms are beginning to yield previously unattainable insight into the organization of neural circuits, the regulation of their collective dynamics, and the causal relationships between cellular activity patterns and behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miesenbock, Gero -- G0700888/Medical Research Council/United Kingdom -- G0701225/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2009 Oct 16;326(5951):395-9. doi: 10.1126/science.1174520.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Anatomy and Genetics, University of Oxford, Parks Road, Oxford, OX1 3PT, UK. gero.miesenboeck@dpag.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19833960" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biotechnology/instrumentation/*methods ; Brain/*physiology ; Calcium/metabolism ; Gene Expression Profiling ; *Genetic Engineering ; *Light ; Membrane Potentials ; Neural Pathways/physiology ; Neurons/*physiology ; Neurosciences/*methods ; Photons ; Proteins/*metabolism ; Signal Transduction ; Synapses/physiology
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  • 44
    Publication Date: 2009-04-25
    Description: Determining proper responsiveness to incoming signals is fundamental to all biological systems. We demonstrate that intracellular signaling nodes can tune a signaling network's response threshold away from the basal median effective concentration established by ligand-receptor interactions. Focusing on the bistable kinase network that governs progesterone-induced meiotic entry in Xenopus oocytes, we characterized glycogen synthase kinase-3beta (GSK-3beta) as a dampener of progesterone responsiveness. GSK-3beta engages the meiotic kinase network through a double-negative feedback loop; this specific feedback architecture raises the progesterone threshold in correspondence with the strength of double-negative signaling. We also identified a marker of nutritional status, l-leucine, which lowers the progesterone threshold, indicating that oocytes integrate additional signals into their cell-fate decisions by modulating progesterone responsiveness.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2880456/" 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/PMC2880456/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Justman, Quincey A -- Serber, Zach -- Ferrell, James E Jr -- El-Samad, Hana -- Shokat, Kevan M -- AI49006/AI/NIAID NIH HHS/ -- GM46383/GM/NIGMS NIH HHS/ -- R01 AI044009/AI/NIAID NIH HHS/ -- R01 AI044009-10/AI/NIAID NIH HHS/ -- R01 GM046383/GM/NIGMS NIH HHS/ -- R01 GM046383-19/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Apr 24;324(5926):509-12. doi: 10.1126/science.1169498.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate Group in Biophysics, University of California, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19390045" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Enzyme Activation ; Feedback, Physiological ; Glycogen Synthase Kinase 3/*metabolism ; Leucine/metabolism ; *MAP Kinase Signaling System/physiology ; Meiosis/physiology ; Mitogen-Activated Protein Kinases/metabolism ; Models, Biological ; Oocytes/*cytology/*metabolism ; Oogenesis/*physiology ; Phosphorylation ; Progesterone/*physiology ; Xenopus
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  • 45
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-10-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaeberlein, Matt -- Kapahi, Pankaj -- R01 AG031108/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2009 Oct 2;326(5949):55-6. doi: 10.1126/science.1181034.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Washington, Seattle, WA 98195, USA. kaeber@u.washington.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19797648" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/genetics/metabolism ; Aging/*physiology ; Animals ; Caloric Restriction ; Enzyme Activation ; Female ; Gene Expression ; Longevity/*physiology ; Male ; Mice ; Mice, Knockout ; Oligonucleotide Array Sequence Analysis ; Phosphorylation ; Protein Biosynthesis ; Protein Kinases/metabolism ; Protein Subunits ; Ribosomal Protein S6/*metabolism ; Ribosomal Protein S6 Kinases, 90-kDa/genetics/*metabolism ; *Signal Transduction ; Sirolimus/pharmacology ; TOR Serine-Threonine Kinases
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  • 46
    Publication Date: 2009-12-08
    Description: Holometabolous insects undergo complete metamorphosis to become sexually mature adults. Metamorphosis is initiated by brain-derived prothoracicotropic hormone (PTTH), which stimulates the production of the molting hormone ecdysone via an incompletely defined signaling pathway. Here we demonstrate that Torso, a receptor tyrosine kinase that regulates embryonic terminal cell fate in Drosophila, is the PTTH receptor. Trunk, the embryonic Torso ligand, is related to PTTH, and ectopic expression of PTTH in the embryo partially rescues trunk mutants. In larvae, torso is expressed specifically in the prothoracic gland (PG), and its loss phenocopies the removal of PTTH. The activation of Torso by PTTH stimulates extracellular signal-regulated kinase (ERK) phosphorylation, and the loss of ERK in the PG phenocopies the loss of PTTH and Torso. We conclude that PTTH initiates metamorphosis by activation of the Torso/ERK pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rewitz, Kim F -- Yamanaka, Naoki -- Gilbert, Lawrence I -- O'Connor, Michael B -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Dec 4;326(5958):1403-5. doi: 10.1126/science.1176450.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965758" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Bombyx/*genetics/metabolism ; Cell Line ; Drosophila Proteins/chemistry/genetics/*metabolism ; Drosophila melanogaster/embryology/genetics/*growth & development/metabolism ; Embryo, Nonmammalian/metabolism ; Extracellular Signal-Regulated MAP Kinases/metabolism ; Insect Hormones/chemistry/*metabolism ; Larva/growth & development ; Ligands ; *Metamorphosis, Biological ; Molecular Sequence Data ; Neurons/metabolism ; Phosphorylation ; Pupa/growth & development ; RNA Interference ; Receptor Protein-Tyrosine Kinases/genetics/*metabolism ; Signal Transduction
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  • 47
    Publication Date: 2009-01-31
    Description: The cytoskeleton, integrin-mediated adhesion, and substrate stiffness control a common set of cell functions required for development and homeostasis that are often deranged in cancer. The connection between these mechanical elements and chemical signaling processes is not known. Here, we show that alpha(5)beta(1) integrin switches between relaxed and tensioned states in response to myosin II-generated cytoskeletal force. Force combines with extracellular matrix stiffness to generate tension that triggers the integrin switch. This switch directly controls the alpha(5)beta(1)-fibronectin bond strength through engaging the synergy site in fibronectin and is required to generate signals through phosphorylation of focal adhesion kinase. In the context of tissues, this integrin switch connects cytoskeleton and extracellular matrix mechanics to adhesion-dependent motility and signaling pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Friedland, Julie C -- Lee, Mark H -- Boettiger, David -- GM57388/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 30;323(5914):642-4. doi: 10.1126/science.1168441.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Medicine and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19179533" target="_blank"〉PubMed〈/a〉
    Keywords: Actins ; Biophysical Phenomena ; Cell Adhesion ; Cell Line, Tumor ; Cytoskeleton/*physiology ; Fibronectins/chemistry/*metabolism ; Focal Adhesion Protein-Tyrosine Kinases/metabolism ; Humans ; Integrin alpha5beta1/*chemistry/*metabolism ; Ligands ; Models, Molecular ; Myosin Type II/antagonists & inhibitors/metabolism ; Phosphorylation ; Protein Binding ; Protein Conformation ; Signal Transduction
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  • 48
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-02-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bar-Yam, Yaneer -- Harmon, Dion -- de Bivort, Benjamin -- New York, N.Y. -- Science. 2009 Feb 20;323(5917):1016-7. doi: 10.1126/science.1163225.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉New England Complex Systems Institute, 24 Mt. Auburn Street, Cambridge, MA 02138, USA. yaneer@necsi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19229023" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Gene Expression Profiling ; *Gene Expression Regulation ; *Gene Regulatory Networks ; Models, Genetic ; Phenotype ; Signal Transduction ; Systems Biology ; *Transcription, Genetic
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  • 49
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-16
    Description: Integrins are transmembrane cell-adhesion molecules that carry signals from the outside to the inside of the cell and vice versa. Like other cell surface receptors, integrins signal in response to ligand binding; however, events within the cell can also regulate the affinity of integrins for ligands. This feature is important in physiological situations such as those in blood, in which cells are always in close proximity to their ligands, yet cell-ligand interactions occur only after integrin activation in response to specific external cues. This review focuses on the mechanisms whereby two key proteins, talin and the kindlins, regulate integrin activation by binding the tails of integrin-beta subunits.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moser, Markus -- Legate, Kyle R -- Zent, Roy -- Fassler, Reinhard -- DK 69921/DK/NIDDK NIH HHS/ -- DK075594/DK/NIDDK NIH HHS/ -- DK65138/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2009 May 15;324(5929):895-9. doi: 10.1126/science.1163865.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute of Biochemistry, 82152 Martinsried, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19443776" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Adhesion ; Humans ; Integrins/chemistry/*metabolism ; Ligands ; Membrane Proteins/chemistry/*metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Tertiary ; Signal Transduction ; Talin/chemistry/*metabolism
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  • 50
    Publication Date: 2009-03-03
    Description: Mammals have single-rowed dentitions, whereas many nonmammalian vertebrates have teeth in multiple rows. Neither the molecular mechanism regulating iterative tooth initiation nor that restricting mammalian tooth development in one row is known. We found that mice lacking the transcription factor odd-skipped related-2 (Osr2) develop supernumerary teeth lingual to their molars because of expansion of the odontogenic field. Osr2 was expressed in a lingual-to-buccal gradient and restricted expression of bone morphogenetic protein 4 (Bmp4), an essential odontogenic signal, in the developing tooth mesenchyme. Expansion of odontogenic field in Osr2-deficient mice required Msx1, a feedback activator of Bmp4 expression. These findings suggest that the Bmp4-Msx1 pathway propagates mesenchymal activation for sequential tooth induction and that spatial modulation of this pathway provides a mechanism for patterning vertebrate dentition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2650836/" 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/PMC2650836/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Zunyi -- Lan, Yu -- Chai, Yang -- Jiang, Rulang -- R01 DE013681/DE/NIDCR NIH HHS/ -- R01 DE013681-06/DE/NIDCR NIH HHS/ -- R01 DE013681-07/DE/NIDCR NIH HHS/ -- R01 DE013681-08/DE/NIDCR NIH HHS/ -- R01 DE013681-09/DE/NIDCR NIH HHS/ -- R01DE013681/DE/NIDCR NIH HHS/ -- T32DE007202/DE/NIDCR NIH HHS/ -- New York, N.Y. -- Science. 2009 Feb 27;323(5918):1232-4. doi: 10.1126/science.1167418.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Oral Biology and Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY 14642, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19251632" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Morphogenetic Protein 4/metabolism ; Dentition ; Epithelium/embryology/metabolism ; Gene Expression ; Gene Expression Profiling ; MSX1 Transcription Factor/genetics/*metabolism ; Mesoderm/embryology/metabolism ; Mice ; Molar/embryology ; Morphogenesis ; Mutation ; *Odontogenesis ; Tooth Germ/embryology/metabolism ; Tooth, Supernumerary/*embryology ; Transcription Factors/genetics/*metabolism
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  • 51
    Publication Date: 2009-04-25
    Description: The imprints of domestication and breed development on the genomes of livestock likely differ from those of companion animals. A deep draft sequence assembly of shotgun reads from a single Hereford female and comparative sequences sampled from six additional breeds were used to develop probes to interrogate 37,470 single-nucleotide polymorphisms (SNPs) in 497 cattle from 19 geographically and biologically diverse breeds. These data show that cattle have undergone a rapid recent decrease in effective population size from a very large ancestral population, possibly due to bottlenecks associated with domestication, selection, and breed formation. Domestication and artificial selection appear to have left detectable signatures of selection within the cattle genome, yet the current levels of diversity within breeds are at least as great as exists within humans.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2735092/" 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/PMC2735092/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bovine HapMap Consortium -- Gibbs, Richard A -- Taylor, Jeremy F -- Van Tassell, Curtis P -- Barendse, William -- Eversole, Kellye A -- Gill, Clare A -- Green, Ronnie D -- Hamernik, Debora L -- Kappes, Steven M -- Lien, Sigbjorn -- Matukumalli, Lakshmi K -- McEwan, John C -- Nazareth, Lynne V -- Schnabel, Robert D -- Weinstock, George M -- Wheeler, David A -- Ajmone-Marsan, Paolo -- Boettcher, Paul J -- Caetano, Alexandre R -- Garcia, Jose Fernando -- Hanotte, Olivier -- Mariani, Paola -- Skow, Loren C -- Sonstegard, Tad S -- Williams, John L -- Diallo, Boubacar -- Hailemariam, Lemecha -- Martinez, Mario L -- Morris, Chris A -- Silva, Luiz O C -- Spelman, Richard J -- Mulatu, Woudyalew -- Zhao, Keyan -- Abbey, Colette A -- Agaba, Morris -- Araujo, Flabio R -- Bunch, Rowan J -- Burton, James -- Gorni, Chiara -- Olivier, Hanotte -- Harrison, Blair E -- Luff, Bill -- Machado, Marco A -- Mwakaya, Joel -- Plastow, Graham -- Sim, Warren -- Smith, Timothy -- Thomas, Merle B -- Valentini, Alessio -- Williams, Paul -- Womack, James -- Woolliams, John A -- Liu, Yue -- Qin, Xiang -- Worley, Kim C -- Gao, Chuan -- Jiang, Huaiyang -- Moore, Stephen S -- Ren, Yanru -- Song, Xing-Zhi -- Bustamante, Carlos D -- Hernandez, Ryan D -- Muzny, Donna M -- Patil, Shobha -- San Lucas, Anthony -- Fu, Qing -- Kent, Matthew P -- Vega, Richard -- Matukumalli, Aruna -- McWilliam, Sean -- Sclep, Gert -- Bryc, Katarzyna -- Choi, Jungwoo -- Gao, Hong -- Grefenstette, John J -- Murdoch, Brenda -- Stella, Alessandra -- Villa-Angulo, Rafael -- Wright, Mark -- Aerts, Jan -- Jann, Oliver -- Negrini, Riccardo -- Goddard, Mike E -- Hayes, Ben J -- Bradley, Daniel G -- Barbosa da Silva, Marcos -- Lau, Lilian P L -- Liu, George E -- Lynn, David J -- Panzitta, Francesca -- Dodds, Ken G -- R01 GM083606/GM/NIGMS NIH HHS/ -- R01 GM083606-02/GM/NIGMS NIH HHS/ -- U54 HG003273/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 24;324(5926):528-32. doi: 10.1126/science.1167936.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19390050" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breeding ; Cattle/*genetics ; Female ; Gene Frequency ; *Genetic Variation ; *Genome ; Male ; Molecular Sequence Data ; Mutation ; *Polymorphism, Single Nucleotide ; Population Density
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  • 52
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zimmer, Carl -- New York, N.Y. -- Science. 2009 Dec 4;326(5958):1334-6. doi: 10.1126/science.326.5958.1334.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965730" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biodiversity ; *Biological Evolution ; Climate Change ; Cultural Evolution ; Ecosystem ; Evolution, Planetary ; Extinction, Biological ; Genetic Engineering ; *Genome, Human ; Human Activities ; Humans ; Mutation ; *Selection, Genetic
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  • 53
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-03-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, Jon -- New York, N.Y. -- Science. 2009 Feb 27;323(5918):1156-7. doi: 10.1126/science.323.5918.1156.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19251598" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-HIV Agents/*pharmacology/therapeutic use ; Biotechnology/legislation & jurisprudence ; California ; Databases, Factual/*legislation & jurisprudence ; *Drug Resistance, Viral/genetics ; HIV/*drug effects/genetics ; HIV Infections/drug therapy/virology ; Humans ; Internet ; Luxembourg ; Mutation ; Patents as Topic/*legislation & jurisprudence ; Universities/legislation & jurisprudence
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  • 54
    Publication Date: 2009-03-28
    Description: Temperature affects the physiology, behavior, and evolution of organisms. We conducted mutagenesis and screens for mutants with altered temperature preference in Drosophila melanogaster and identified a cryophilic (cold-seeking) mutant, named atsugari (atu). Reduced expression of the Drosophila ortholog of dystroglycan (DmDG) induced tolerance to cold as well as preference for the low temperature. A sustained increase in mitochondrial oxidative metabolism caused by the reduced expression of DmDG accounted for the cryophilic phenotype of the atu mutant. Although most ectothermic animals do not use metabolically produced heat to regulate body temperature, our results indicate that their thermoregulatory behavior is closely linked to rates of mitochondrial oxidative metabolism and that a mutation in a single gene can induce a sustained change in energy homeostasis and the thermal responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takeuchi, Ken-Ichi -- Nakano, Yoshiro -- Kato, Utako -- Kaneda, Mizuho -- Aizu, Masako -- Awano, Wakae -- Yonemura, Shigenobu -- Kiyonaka, Shigeki -- Mori, Yasuo -- Yamamoto, Daisuke -- Umeda, Masato -- New York, N.Y. -- Science. 2009 Mar 27;323(5922):1740-3. doi: 10.1126/science.1165712.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19325118" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Animals ; Animals, Genetically Modified ; Body Temperature Regulation ; Calcium/metabolism ; *Cold Temperature ; Drosophila Proteins/genetics/*physiology ; Drosophila melanogaster/genetics/*physiology ; Dystroglycans/genetics/*physiology ; *Energy Metabolism ; Homeostasis ; Mitochondria/metabolism ; Mutant Proteins ; Mutation ; Oxygen Consumption ; Phenotype ; Pyruvate Dehydrogenase Complex/metabolism ; Temperature
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  • 55
    Publication Date: 2009-06-06
    Description: Knowing when and where a given protein is activated within intact animals assists in elucidating its in vivo function. With the use of a genetically encoded A-probe (activation bioprobe), we revealed that Cdc42 guanosine triphosphatase (GTPase) remains inactive within Drosophila embryos during the first two-thirds of embryogenesis. Within the central nervous system where Cdc42 activity first becomes up-regulated, individual neurons display patterns restricted to specific subcellular compartments. At both organismal and cellular levels, Cdc42's endogenous activation patterns in the wild type allow predictions of where loss-of-function phenotypes will emerge in cdc42/cdc42 mutants. Genetic tests support the importance of suppressing endogenous Cdc42 activities until needed. Thus, bioprobe-assisted analysis uncovers how ubiquitously expressed signaling proteins control cellular events through continual regulation of their activities within animals.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2729367/" 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/PMC2729367/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kamiyama, Daichi -- Chiba, Akira -- R01 MH068650-01A2/MH/NIMH NIH HHS/ -- R01 MH079432-01A1/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2009 Jun 5;324(5932):1338-40. doi: 10.1126/science.1170615.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology and Miami Institute of Molecular Imaging and Computation, University of Miami, Coral Gables, FL 33146, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19498173" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/ultrastructure ; Central Nervous System/embryology/enzymology ; Dendrites/ultrastructure ; Drosophila/*embryology/enzymology/genetics ; Drosophila Proteins/genetics/*metabolism ; Embryo, Nonmammalian/*enzymology ; Embryonic Development ; Enzyme Activation ; Fluorescence Resonance Energy Transfer ; Molecular Probe Techniques ; Motor Neurons/cytology/*enzymology ; Mutation ; Organogenesis ; Phenotype ; cdc42 GTP-Binding Protein/genetics/*metabolism
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  • 56
    Publication Date: 2009-01-20
    Description: Successful cell division requires that chromosomes attach to opposite poles of the mitotic spindle (bi-orientation). Aurora B kinase regulates chromosome-spindle attachments by phosphorylating kinetochore substrates that bind microtubules. Centromere tension stabilizes bi-oriented attachments, but how physical forces are translated into signaling at individual centromeres is unknown. Using fluorescence resonance energy transfer-based biosensors to measure localized phosphorylation dynamics in living cells, we found that phosphorylation of an Aurora B substrate at the kinetochore depended on its distance from the kinase at the inner centromere. Furthermore, repositioning Aurora B closer to the kinetochore prevented stabilization of bi-oriented attachments and activated the spindle checkpoint. Thus, centromere tension can be sensed by increased spatial separation of Aurora B from kinetochore substrates, which reduces phosphorylation and stabilizes kinetochore microtubules.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2713345/" 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/PMC2713345/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Dan -- Vader, Gerben -- Vromans, Martijn J M -- Lampson, Michael A -- Lens, Susanne M A -- GM083988/GM/NIGMS NIH HHS/ -- R01 GM083988/GM/NIGMS NIH HHS/ -- R01 GM083988-01/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Mar 6;323(5919):1350-3. doi: 10.1126/science.1167000. Epub 2009 Jan 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19150808" target="_blank"〉PubMed〈/a〉
    Keywords: Aurora Kinase B ; Aurora Kinases ; Autoantigens/metabolism ; Biosensing Techniques ; Cell Line, Tumor ; Centromere/enzymology/*metabolism ; Chromatids/metabolism ; Chromosomal Proteins, Non-Histone/metabolism ; Chromosomes, Human/*metabolism ; Fluorescence Resonance Energy Transfer ; HeLa Cells ; Humans ; Kinetochores/*metabolism ; Microtubules/*metabolism ; Mitosis ; Models, Biological ; Phosphorylation ; Protein-Serine-Threonine Kinases/*metabolism ; Recombinant Fusion Proteins/metabolism ; Spindle Apparatus/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 57
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-09
    Description: To intercept invading microbes that threaten growth and reproduction, plants evolved a sophisticated innate immune system. Recognition of specialized pathogens is mediated by resistance proteins that function as molecular switches. Pathogen perception by these multidomain proteins seems to trigger a series of conformational changes dependent on nucleotide exchange. The activated resistance protein switches on host defenses, often culminating in the death of infected cells. Given their control over life and death, activity of these proteins requires tight regulation that involves intramolecular interactions between the various domains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takken, F L W -- Tameling, W I L -- New York, N.Y. -- Science. 2009 May 8;324(5928):744-6. doi: 10.1126/science.1171666.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Plant Pathology, Swammerdam Institute for Life Sciences (SILS), University of Amsterdam, Post Office Box 94215, 1090 GE Amsterdam, the Netherlands. F.L.W.Takken@uva.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19423813" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Diphosphate/metabolism ; Adenosine Triphosphatases/chemistry/genetics/*metabolism ; Adenosine Triphosphate/metabolism ; Host-Pathogen Interactions ; Immunity, Innate ; Plant Diseases/*immunology ; Plant Proteins/chemistry/genetics/*metabolism ; Plants/*immunology/metabolism/*microbiology ; Protein Conformation ; Protein Multimerization ; Protein Structure, Tertiary ; Signal Transduction
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  • 58
    Publication Date: 2009-07-11
    Description: John Nash showed that within a complex system, individuals are best off if they make the best decision that they can, taking into account the decisions of the other individuals. Here, we investigate whether similar principles influence the evolution of signaling networks in multicellular animals. Specifically, by analyzing a set of metazoan species we observed a striking negative correlation of genomically encoded tyrosine content with biological complexity (as measured by the number of cell types in each organism). We discuss how this observed tyrosine loss correlates with the expansion of tyrosine kinases in the evolution of the metazoan lineage and how it may relate to the optimization of signaling systems in multicellular animals. We propose that this phenomenon illustrates genome-wide adaptive evolution to accommodate beneficial genetic perturbation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3066034/" 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/PMC3066034/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tan, Chris Soon Heng -- Pasculescu, Adrian -- Lim, Wendell A -- Pawson, Tony -- Bader, Gary D -- Linding, Rune -- R01 GM055040/GM/NIGMS NIH HHS/ -- R01 GM055040-11/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Sep 25;325(5948):1686-8. doi: 10.1126/science.1174301. Epub 2009 Jul 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto M5G 1X5, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19589966" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Animals ; *Biological Evolution ; *Evolution, Molecular ; Fungal Proteins/chemistry/metabolism ; Glycosylation ; Humans ; Methylation ; Mutation ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein Structure, Tertiary ; Protein-Tyrosine Kinases/*metabolism ; Proteins/*chemistry/*metabolism ; *Selection, Genetic ; *Signal Transduction ; Substrate Specificity ; Tyrosine/*metabolism
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  • 59
    Publication Date: 2009-01-24
    Description: We constructed a large-scale functional network model in Drosophila melanogaster built around two key transcription factors involved in the process of embryonic segmentation. Analysis of the model allowed the identification of a new role for the ubiquitin E3 ligase complex factor SPOP. In Drosophila, the gene encoding SPOP is a target of segmentation transcription factors. Drosophila SPOP mediates degradation of the Jun kinase phosphatase Puckered, thereby inducing tumor necrosis factor (TNF)/Eiger-dependent apoptosis. In humans, we found that SPOP plays a conserved role in TNF-mediated JNK signaling and was highly expressed in 99% of clear cell renal cell carcinomas (RCCs), the most prevalent form of kidney cancer. SPOP expression distinguished histological subtypes of RCC and facilitated identification of clear cell RCC as the primary tumor for metastatic lesions.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2756524/" 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/PMC2756524/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Jiang -- Ghanim, Murad -- Xue, Lei -- Brown, Christopher D -- Iossifov, Ivan -- Angeletti, Cesar -- Hua, Sujun -- Negre, Nicolas -- Ludwig, Michael -- Stricker, Thomas -- Al-Ahmadie, Hikmat A -- Tretiakova, Maria -- Camp, Robert L -- Perera-Alberto, Montse -- Rimm, David L -- Xu, Tian -- Rzhetsky, Andrey -- White, Kevin P -- P50 GM081892/GM/NIGMS NIH HHS/ -- P50 GM081892-01A1/GM/NIGMS NIH HHS/ -- R01 HG003012/HG/NHGRI NIH HHS/ -- R01 HG003012-04/HG/NHGRI NIH HHS/ -- UL1 RR024999/RR/NCRR NIH HHS/ -- UL1 RR024999-02/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2009 Feb 27;323(5918):1218-22. doi: 10.1126/science.1157669. Epub 2009 Jan 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genomics and Systems Biology, University of Chicago and Argonne National Laboratory, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19164706" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Apoptosis ; Carcinoma, Renal Cell/*genetics/metabolism ; Cell Line ; Compound Eye, Arthropod/embryology/metabolism ; Drosophila Proteins/genetics/metabolism ; Drosophila melanogaster/embryology/*genetics/metabolism ; Embryo, Nonmammalian/metabolism ; Fushi Tarazu Transcription Factors/genetics/metabolism ; Gene Expression Profiling ; Gene Regulatory Networks ; Homeodomain Proteins/genetics/metabolism ; Humans ; Janus Kinases/*metabolism ; Kidney/metabolism ; Kidney Neoplasms/*genetics/metabolism ; Molecular Sequence Data ; Nervous System/embryology ; Nuclear Proteins/*genetics/metabolism ; Phosphoprotein Phosphatases/metabolism ; Phosphorylation ; Repressor Proteins/*genetics/metabolism ; *Signal Transduction ; Transcription Factors/genetics/metabolism ; Transcription, Genetic
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  • 60
    Publication Date: 2009-09-26
    Description: Amyloid-beta (Abeta) accumulation in the brain extracellular space is a hallmark of Alzheimer's disease. The factors regulating this process are only partly understood. Abeta aggregation is a concentration-dependent process that is likely responsive to changes in brain interstitial fluid (ISF) levels of Abeta. Using in vivo microdialysis in mice, we found that the amount of ISF Abeta correlated with wakefulness. The amount of ISF Abeta also significantly increased during acute sleep deprivation and during orexin infusion, but decreased with infusion of a dual orexin receptor antagonist. Chronic sleep restriction significantly increased, and a dual orexin receptor antagonist decreased, Abeta plaque formation in amyloid precursor protein transgenic mice. Thus, the sleep-wake cycle and orexin may play a role in the pathogenesis of Alzheimer's disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2789838/" 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/PMC2789838/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kang, Jae-Eun -- Lim, Miranda M -- Bateman, Randall J -- Lee, James J -- Smyth, Liam P -- Cirrito, John R -- Fujiki, Nobuhiro -- Nishino, Seiji -- Holtzman, David M -- AG025824/AG/NIA NIH HHS/ -- AG029524/AG/NIA NIH HHS/ -- AG030946/AG/NIA NIH HHS/ -- K01 AG029524/AG/NIA NIH HHS/ -- K01 AG029524-03/AG/NIA NIH HHS/ -- K23 AG030946/AG/NIA NIH HHS/ -- K23 AG030946-03/AG/NIA NIH HHS/ -- MH072525/MH/NIMH NIH HHS/ -- NS065667/NS/NINDS NIH HHS/ -- P30 DK056341/DK/NIDDK NIH HHS/ -- P30 DK056341-09/DK/NIDDK NIH HHS/ -- P30 NS057105/NS/NINDS NIH HHS/ -- P30 NS057105-04/NS/NINDS NIH HHS/ -- P50 AG005681/AG/NIA NIH HHS/ -- R01 AG025824/AG/NIA NIH HHS/ -- R01 AG025824-03/AG/NIA NIH HHS/ -- R01 MH072525/MH/NIMH NIH HHS/ -- R01 MH072525-04/MH/NIMH NIH HHS/ -- R01 NS065667/NS/NINDS NIH HHS/ -- R01 NS065667-02/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):1005-7. doi: 10.1126/science.1180962. Epub 2009 Sep 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Washington University, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19779148" target="_blank"〉PubMed〈/a〉
    Keywords: Acetamides/pharmacology ; Alzheimer Disease/metabolism/*physiopathology ; Amyloid beta-Peptides/cerebrospinal fluid/*metabolism ; Animals ; Antigens, Surface/metabolism ; Circadian Rhythm ; Disease Models, Animal ; Extracellular Fluid/*metabolism ; Female ; Hippocampus/*metabolism ; Humans ; Intracellular Signaling Peptides and Proteins/administration & dosage/*metabolism ; Isoquinolines/pharmacology ; Light ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Neuropeptides/administration & dosage/*metabolism ; Orexin Receptors ; Orexins ; Receptors, Cell Surface/metabolism ; Receptors, G-Protein-Coupled/metabolism ; Receptors, Neuropeptide/metabolism ; Signal Transduction ; *Sleep ; Sleep Deprivation ; *Wakefulness
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  • 61
    Publication Date: 2009-02-07
    Description: Speciation often involves the evolution of incompatible gene interactions that cause sterility or lethality in hybrids between populations. These so-called hybrid incompatibilities occur between two or more functionally divergent loci. We show that the nucleoporin 160kDa (Nup160) gene of the fruitfly Drosophila simulans is incompatible with one or more factors on the D. melanogaster X chromosome, causing hybrid lethality. Nup160 encodes a nuclear pore complex protein and shows evidence of adaptive evolution. Furthermore, the protein encoded by Nup160 directly interacts with that of another hybrid lethality gene, Nup96, indicating that at least two lethal hybrid incompatibility genes have evolved as byproducts of divergent coevolution among interacting components of the Drosophila nuclear pore complex.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2826207/" 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/PMC2826207/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tang, Shanwu -- Presgraves, Daven C -- R01 GM079543/GM/NIGMS NIH HHS/ -- R01 GM079543-01A1/GM/NIGMS NIH HHS/ -- R01-GM079543/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):779-82. doi: 10.1126/science.1169123.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Rochester, Rochester, NY 14627, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19197064" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; Crosses, Genetic ; Drosophila/*genetics/*physiology ; Drosophila Proteins/*genetics/metabolism ; Drosophila melanogaster/genetics/*physiology ; *Evolution, Molecular ; Female ; Genes, Insect ; *Genetic Speciation ; Hybridization, Genetic ; Male ; Molecular Sequence Data ; Mutation ; Nuclear Pore Complex Proteins/*genetics/metabolism ; Selection, Genetic ; X Chromosome/*genetics
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  • 62
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bianchi, Marco E -- Manfredi, Angelo A -- New York, N.Y. -- Science. 2009 Mar 27;323(5922):1683-4. doi: 10.1126/science.1172794.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉San Raffaele University, Faculty of Medicine, and San Raffaele Scientific Institute, via Olgettina 58, 20132 Milano, Italy. bianchi.marco@hsr.it〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19325105" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD24/immunology/metabolism ; Autoimmunity ; HMGB1 Protein/metabolism ; Immunity ; *Immunity, Innate ; Infection/*immunology ; Inflammation/*immunology ; Lectins/immunology/metabolism ; Liver/*immunology/pathology ; Mice ; Necrosis/chemically induced/immunology ; Receptors, Antigen, B-Cell/immunology/metabolism ; Receptors, Pattern Recognition/immunology/metabolism ; Signal Transduction ; Wounds and Injuries/*immunology
    Print ISSN: 0036-8075
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  • 63
    Publication Date: 2009-01-31
    Description: Schwann cells develop from multipotent neural crest cells and form myelin sheaths around axons that allow rapid transmission of action potentials. Neuregulin signaling through the ErbB receptor regulates Schwann cell development; however, the downstream pathways are not fully defined. We find that mice lacking calcineurin B1 in the neural crest have defects in Schwann cell differentiation and myelination. Neuregulin addition to Schwann cell precursors initiates an increase in cytoplasmic Ca2+, which activates calcineurin and the downstream transcription factors NFATc3 and c4. Purification of NFAT protein complexes shows that Sox10 is an NFAT nuclear partner and synergizes with NFATc4 to activate Krox20, which regulates genes necessary for myelination. Our studies demonstrate that calcineurin and NFAT are essential for neuregulin and ErbB signaling, neural crest diversification, and differentiation of Schwann cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2790385/" 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/PMC2790385/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kao, Shih-Chu -- Wu, Hai -- Xie, Jianming -- Chang, Ching-Pin -- Ranish, Jeffrey A -- Graef, Isabella A -- Crabtree, Gerald R -- AI60037/AI/NIAID NIH HHS/ -- HD55391/HD/NICHD NIH HHS/ -- NS046789/NS/NINDS NIH HHS/ -- R01 AI060037/AI/NIAID NIH HHS/ -- R01 AI060037-01/AI/NIAID NIH HHS/ -- R01 AI060037-02/AI/NIAID NIH HHS/ -- R01 AI060037-03/AI/NIAID NIH HHS/ -- R01 AI060037-04/AI/NIAID NIH HHS/ -- R01 AI060037-05/AI/NIAID NIH HHS/ -- R01 HD055391/HD/NICHD NIH HHS/ -- R01 NS046789/NS/NINDS NIH HHS/ -- R01 NS046789-01/NS/NINDS NIH HHS/ -- R01 NS046789-02/NS/NINDS NIH HHS/ -- R01 NS046789-03/NS/NINDS NIH HHS/ -- R01 NS046789-04/NS/NINDS NIH HHS/ -- R01 NS046789-05/NS/NINDS NIH HHS/ -- R21 NS061702/NS/NINDS NIH HHS/ -- R21 NS061702-01/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Jan 30;323(5914):651-4. doi: 10.1126/science.1166562.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19179536" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcineurin/*metabolism ; Calcium/metabolism ; Cell Differentiation ; Cell Line ; Coculture Techniques ; Early Growth Response Protein 2/metabolism ; Ganglia, Spinal/cytology ; Mice ; Myelin Sheath/physiology ; NFATC Transcription Factors/*metabolism ; Neural Crest/cytology/metabolism ; Neuregulins/*metabolism ; Phosphorylation ; Receptor, ErbB-2/metabolism ; Receptor, ErbB-3 ; SOXE Transcription Factors/metabolism ; Schwann Cells/*cytology/*metabolism ; *Signal Transduction
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  • 64
    Publication Date: 2009-01-24
    Description: Membrane fusion between vesicles and target membranes involves the zippering of a four-helix bundle generated by constituent helices derived from target- and vesicle-soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs). In neurons, the protein complexin clamps otherwise spontaneous fusion by SNARE proteins, allowing neurotransmitters and other mediators to be secreted when and where they are needed as this clamp is released. The membrane-proximal accessory helix of complexin is necessary for clamping, but its mechanism of action is unknown. Here, we present experiments using a reconstituted fusion system that suggest a simple model in which the complexin accessory helix forms an alternative four-helix bundle with the target-SNARE near the membrane, preventing the vesicle-SNARE from completing its zippering.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3736854/" 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/PMC3736854/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Giraudo, Claudio G -- Garcia-Diaz, Alejandro -- Eng, William S -- Chen, Yuhang -- Hendrickson, Wayne A -- Melia, Thomas J -- Rothman, James E -- R01 GM071458/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 23;323(5913):512-6. doi: 10.1126/science.1166500.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Cellular Biophysics, Columbia University, College of Physicians and Surgeons, 1150 Saint Nicholas Avenue, Russ Berrie Building, Room 520, New York, NY 10032, USA. claudio.giraudo@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19164750" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Vesicular Transport ; Amino Acid Motifs ; Amino Acid Sequence ; HeLa Cells ; Humans ; Hydrophobic and Hydrophilic Interactions ; *Membrane Fusion ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry/metabolism ; Mutation ; Nerve Tissue Proteins/*chemistry/genetics/*metabolism ; Protein Binding ; Protein Structure, Secondary ; Recombinant Fusion Proteins/chemistry/metabolism ; SNARE Proteins/*chemistry/*metabolism ; Vesicle-Associated Membrane Protein 2/*chemistry/*metabolism
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  • 65
    Publication Date: 2009-03-17
    Description: Dendritic cells (DCs) in lymphoid tissue arise from precursors that also produce monocytes and plasmacytoid DCs (pDCs). Where DC and monocyte lineage commitment occurs and the nature of the DC precursor that migrates from the bone marrow to peripheral lymphoid organs are unknown. We show that DC development progresses from the macrophage and DC precursor to common DC precursors that give rise to pDCs and classical spleen DCs (cDCs), but not monocytes, and finally to committed precursors of cDCs (pre-cDCs). Pre-cDCs enter lymph nodes through and migrate along high endothelial venules and later disperse and integrate into the DC network. Further cDC development involves cell division, which is controlled in part by regulatory T cells and fms-like tyrosine kinase receptor-3.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2803315/" 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/PMC2803315/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Kang -- Victora, Gabriel D -- Schwickert, Tanja A -- Guermonprez, Pierre -- Meredith, Matthew M -- Yao, Kaihui -- Chu, Fei-Fan -- Randolph, Gwendalyn J -- Rudensky, Alexander Y -- Nussenzweig, Michel -- P01 AI051573/AI/NIAID NIH HHS/ -- P01 AI051573-010004/AI/NIAID NIH HHS/ -- P01 AI051573-020004/AI/NIAID NIH HHS/ -- P01 AI051573-030004/AI/NIAID NIH HHS/ -- P01 AI051573-040004/AI/NIAID NIH HHS/ -- P01 AI051573-050004/AI/NIAID NIH HHS/ -- P01 AI051573-060004/AI/NIAID NIH HHS/ -- P01 AI051573-069005/AI/NIAID NIH HHS/ -- P01 AI051573-070004/AI/NIAID NIH HHS/ -- P01 AI051573-079005/AI/NIAID NIH HHS/ -- P01 AI051573-080004/AI/NIAID NIH HHS/ -- P01 AI051573-089005/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Apr 17;324(5925):392-7. doi: 10.1126/science.1170540. Epub 2009 Mar 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Immunology, Rockefeller University, New York, NY 10065, USA. liuk@rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19286519" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Animals ; Blood Vessels/cytology ; Bone Marrow Cells/cytology ; Cell Differentiation ; Cell Division ; Cell Lineage ; Cell Movement ; Cell Shape ; Dendritic Cells/*cytology/immunology/physiology ; Homeostasis ; Lymph Nodes/blood supply/cytology/immunology ; Lymphoid Tissue/blood supply/*cytology/immunology ; Macrophages/cytology ; Mice ; Monocytes/*cytology ; Myeloid Progenitor Cells/*cytology/physiology ; Parabiosis ; Signal Transduction ; Spleen/cytology/immunology ; T-Lymphocytes, Regulatory/physiology ; Venules/cytology ; fms-Like Tyrosine Kinase 3/genetics/metabolism
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  • 66
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-09-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Collins, Mark O -- New York, N.Y. -- Science. 2009 Sep 25;325(5948):1635-6. doi: 10.1126/science.1180331.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Proteomic Mass Spectrometry Group, Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1SA, UK. moc@sanger.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19779182" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; *Biological Evolution ; CDC2 Protein Kinase/antagonists & inhibitors/metabolism ; *Evolution, Molecular ; Fungi/metabolism ; Phosphorylation ; Protein Binding ; Protein Folding ; Protein Structure, Tertiary ; Protein-Serine-Threonine Kinases/metabolism ; Protein-Tyrosine Kinases/metabolism ; Proteins/*chemistry/*metabolism ; Serine/metabolism ; *Signal Transduction ; Threonine/metabolism ; Tyrosine/metabolism
    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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  • 67
    Publication Date: 2009-08-22
    Description: The paradigmatic feature of long-term memory (LTM) is its persistence. However, little is known about the mechanisms that make some LTMs last longer than others. In rats, a long-lasting fear LTM vanished rapidly when the D1 dopamine receptor antagonist SCH23390 was injected into the dorsal hippocampus 12 hours, but not immediately or 9 hours, after the fearful experience. Conversely, intrahippocampal application of the D1 agonist SK38393 at the same critical post-training time converted a rapidly decaying fear LTM into a persistent one. This effect was mediated by brain-derived neurotrophic factor and regulated by the ventral tegmental area (VTA). Thus, the persistence of LTM depends on activation of VTA/hippocampus dopaminergic connections and can be specifically modulated by manipulating this system at definite post-learning time points.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rossato, Janine I -- Bevilaqua, Lia R M -- Izquierdo, Ivan -- Medina, Jorge H -- Cammarota, Martin -- New York, N.Y. -- Science. 2009 Aug 21;325(5943):1017-20. doi: 10.1126/science.1172545.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centro de Memoria, Instituto do Cerebro, Pontificia Universidade Catolica do Rio Grande do Sul, Porto Alegre, Brazil.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19696353" target="_blank"〉PubMed〈/a〉
    Keywords: 2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine/pharmacology ; 8-Bromo Cyclic Adenosine Monophosphate/pharmacology ; Animals ; Benzazepines/pharmacology ; Brain-Derived Neurotrophic Factor/metabolism ; Dopamine/*physiology ; Dopamine Agonists/pharmacology ; Dopamine Antagonists/pharmacology ; Fear ; Hippocampus/drug effects/*physiology ; Male ; Memory/drug effects/*physiology ; Phosphorylation ; Rats ; Rats, Wistar ; Receptors, Dopamine D1/agonists/antagonists & inhibitors/metabolism ; Receptors, N-Methyl-D-Aspartate/metabolism ; Time Factors ; Tyrosine 3-Monooxygenase ; Ventral Tegmental Area/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 68
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-07-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taubes, Gary -- New York, N.Y. -- Science. 2009 Jul 17;325(5938):256-60. doi: 10.1126/science.325_256.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19608888" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/cytology/metabolism ; Adipose Tissue/metabolism ; Animals ; Chronic Disease ; Cytokines/metabolism ; Diabetes Mellitus, Type 2/physiopathology ; Diglycerides/metabolism ; Fatty Acids/blood/metabolism ; Glucose/metabolism ; Humans ; Inflammation/*physiopathology ; Insulin/*physiology ; *Insulin Resistance ; *Lipid Metabolism ; Liver/metabolism ; Muscles/metabolism ; Obesity/physiopathology ; Receptor, Insulin/metabolism ; Signal Transduction
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 69
    Publication Date: 2009-08-08
    Description: The catalytic engine of RNA interference (RNAi) is the RNA-induced silencing complex (RISC), wherein the endoribonuclease Argonaute and single-stranded small interfering RNA (siRNA) direct target mRNA cleavage. We reconstituted long double-stranded RNA- and duplex siRNA-initiated RISC activities with the use of recombinant Drosophila Dicer-2, R2D2, and Ago2 proteins. We used this core reconstitution system to purify an RNAi regulator that we term C3PO (component 3 promoter of RISC), a complex of Translin and Trax. C3PO is a Mg2+-dependent endoribonuclease that promotes RISC activation by removing siRNA passenger strand cleavage products. These studies establish an in vitro RNAi reconstitution system and identify C3PO as a key activator of the core RNAi machinery.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2855623/" 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/PMC2855623/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Ying -- Ye, Xuecheng -- Jiang, Feng -- Liang, Chunyang -- Chen, Dongmei -- Peng, Junmin -- Kinch, Lisa N -- Grishin, Nick V -- Liu, Qinghua -- AG025688/AG/NIA NIH HHS/ -- GM078163/GM/NIGMS NIH HHS/ -- GM084010/GM/NIGMS NIH HHS/ -- R01 GM078163/GM/NIGMS NIH HHS/ -- R01 GM078163-03/GM/NIGMS NIH HHS/ -- R01 GM084010/GM/NIGMS NIH HHS/ -- R01 GM084010-02/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Aug 7;325(5941):750-3. doi: 10.1126/science.1176325.〈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/19661431" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Argonaute Proteins ; Carrier Proteins/chemistry/genetics/isolation & purification/*metabolism ; Catalytic Domain ; Drosophila Proteins/chemistry/genetics/isolation & purification/*metabolism ; Drosophila melanogaster/chemistry/enzymology/*genetics ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Protein Conformation ; RNA Helicases/genetics/metabolism ; *RNA Interference ; RNA, Double-Stranded/chemistry/metabolism ; RNA, Small Interfering/chemistry/metabolism ; RNA-Binding Proteins/genetics/metabolism ; RNA-Induced Silencing Complex/genetics/*metabolism ; Recombinant Proteins/metabolism ; Ribonuclease III/genetics/metabolism
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  • 70
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-08
    Description: The ends of eukaryotic chromosomes have the potential to be mistaken for damaged or broken DNA and must therefore be protected from cellular DNA damage response pathways. Otherwise, cells might permanently arrest in the cell cycle, and attempts to "repair" the chromosome ends would have devastating consequences for genome integrity. This end-protection problem is solved by protein-DNA complexes called telomeres. Studies of mammalian cells have recently uncovered the mechanism by which telomeres disguise the chromosome ends. Comparison to unicellular eukaryotes reveals key differences in the DNA damage response systems that inadvertently threaten chromosome ends. Telomeres appear to be tailored to these variations, explaining their variable structure and composition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2819049/" 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/PMC2819049/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Lange, Titia -- AG016642/AG/NIA NIH HHS/ -- CA076027/CA/NCI NIH HHS/ -- DP1 OD000379/OD/NIH HHS/ -- DP1 OD000379-01/OD/NIH HHS/ -- DP1 OD000379-02/OD/NIH HHS/ -- DP1 OD000379-03/OD/NIH HHS/ -- DP1 OD000379-04/OD/NIH HHS/ -- DP1 OD000379-05/OD/NIH HHS/ -- GM049046/GM/NIGMS NIH HHS/ -- R01 AG016642/AG/NIA NIH HHS/ -- R01 AG016642-01/AG/NIA NIH HHS/ -- R01 AG016642-02/AG/NIA NIH HHS/ -- R01 AG016642-03/AG/NIA NIH HHS/ -- R01 AG016642-04/AG/NIA NIH HHS/ -- R01 AG016642-05/AG/NIA NIH HHS/ -- R01 AG016642-06/AG/NIA NIH HHS/ -- R01 AG016642-07/AG/NIA NIH HHS/ -- R01 AG016642-08/AG/NIA NIH HHS/ -- R01 AG016642-09/AG/NIA NIH HHS/ -- R01 AG016642-10/AG/NIA NIH HHS/ -- R01 AG016642-11/AG/NIA NIH HHS/ -- R01 CA076027/CA/NCI NIH HHS/ -- R01 CA076027-02/CA/NCI NIH HHS/ -- R01 CA076027-03/CA/NCI NIH HHS/ -- R01 CA076027-04/CA/NCI NIH HHS/ -- R01 CA076027-05A1/CA/NCI NIH HHS/ -- R01 CA076027-06/CA/NCI NIH HHS/ -- R01 CA076027-07/CA/NCI NIH HHS/ -- R01 CA076027-08/CA/NCI NIH HHS/ -- R01 CA076027-09/CA/NCI NIH HHS/ -- R01 CA076027-10/CA/NCI NIH HHS/ -- R01 CA076027-11/CA/NCI NIH HHS/ -- R01 CA076027-11S1/CA/NCI NIH HHS/ -- R01 CA076027-12/CA/NCI NIH HHS/ -- R01 GM049046/GM/NIGMS NIH HHS/ -- R01 GM049046-07/GM/NIGMS NIH HHS/ -- R01 GM049046-08/GM/NIGMS NIH HHS/ -- R01 GM049046-09/GM/NIGMS NIH HHS/ -- R01 GM049046-10/GM/NIGMS NIH HHS/ -- R01 GM049046-11/GM/NIGMS NIH HHS/ -- R01 GM049046-12/GM/NIGMS NIH HHS/ -- R37 GM049046/GM/NIGMS NIH HHS/ -- R37 GM049046-13/GM/NIGMS NIH HHS/ -- R37 GM049046-14/GM/NIGMS NIH HHS/ -- R37 GM049046-15/GM/NIGMS NIH HHS/ -- R37 GM049046-16/GM/NIGMS NIH HHS/ -- R37 GM049046-17/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):948-52. doi: 10.1126/science.1170633.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cell Biology and Genetics, Rockefeller University, New York, NY 10021, USA. delange@mail.rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965504" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosomes/physiology ; Chromosomes, Mammalian/*physiology/ultrastructure ; Ciliophora/genetics/metabolism ; DNA/biosynthesis/*metabolism ; DNA Damage ; DNA Repair ; DNA-Binding Proteins/metabolism ; Humans ; Repetitive Sequences, Nucleic Acid ; Signal Transduction ; Telomerase/metabolism ; Telomere/*physiology/ultrastructure ; Telomere-Binding Proteins/*metabolism ; Telomeric Repeat Binding Protein 2/metabolism ; Yeasts/genetics/metabolism
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  • 71
    Publication Date: 2009-09-12
    Description: Bacterial nitric oxide synthases (bNOS) are present in many Gram-positive species and have been demonstrated to synthesize NO from arginine in vitro and in vivo. However, the physiological role of bNOS remains largely unknown. We show that NO generated by bNOS increases the resistance of bacteria to a broad spectrum of antibiotics, enabling the bacteria to survive and share habitats with antibiotic-producing microorganisms. NO-mediated resistance is achieved through both the chemical modification of toxic compounds and the alleviation of the oxidative stress imposed by many antibiotics. Our results suggest that the inhibition of NOS activity may increase the effectiveness of antimicrobial therapy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2929644/" 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/PMC2929644/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gusarov, Ivan -- Shatalin, Konstantin -- Starodubtseva, Marina -- Nudler, Evgeny -- DP1 OD000799/OD/NIH HHS/ -- DP1 OD000799-02/OD/NIH HHS/ -- DP1 OD000799-03/OD/NIH HHS/ -- DP1 OD000799-04/OD/NIH HHS/ -- New York, N.Y. -- Science. 2009 Sep 11;325(5946):1380-4. doi: 10.1126/science.1175439.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, New York University School of Medicine, 550 First Avenue, New York, NY 10016, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19745150" target="_blank"〉PubMed〈/a〉
    Keywords: Acriflavine/metabolism/pharmacology ; Anti-Bacterial Agents/metabolism/*pharmacology ; Antibiosis ; Bacillus anthracis/drug effects/genetics/growth & development/metabolism ; Bacillus subtilis/drug effects/genetics/growth & development/metabolism ; Bacteria/*drug effects/genetics/growth & development/*metabolism ; Cefuroxime/pharmacology ; Mutation ; Nitric Oxide/*metabolism/pharmacology ; Nitric Oxide Synthase/genetics/*metabolism ; Oxidative Stress ; Pseudomonas aeruginosa/growth & development/metabolism ; Pyocyanine/metabolism/pharmacology ; Reactive Oxygen Species/metabolism ; Soil Microbiology ; Staphylococcus aureus/drug effects/genetics/growth & development/metabolism ; Superoxide Dismutase/metabolism
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  • 72
    Publication Date: 2009-11-26
    Description: Gene fusions play a critical role in cancer progression. The mechanisms underlying their genesis and cell type specificity are not well understood. About 50% of human prostate cancers display a gene fusion involving the 5' untranslated region of TMPRSS2, an androgen-regulated gene, and the protein-coding sequences of ERG, which encodes an erythroblast transformation-specific (ETS) transcription factor. By studying human prostate cancer cells with fluorescence in situ hybridization, we show that androgen signaling induces proximity of the TMPRSS2 and ERG genomic loci, both located on chromosome 21q22.2. Subsequent exposure of the cells to gamma irradiation, which causes DNA double-strand breaks, facilitates the formation of the TMPRSS2-ERG gene fusion. These results may help explain why TMPRSS2-ERG fusions are restricted to the prostate, which is dependent on androgen signaling.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2935583/" 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/PMC2935583/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mani, Ram-Shankar -- Tomlins, Scott A -- Callahan, Kaitlin -- Ghosh, Aparna -- Nyati, Mukesh K -- Varambally, Sooryanarayana -- Palanisamy, Nallasivam -- Chinnaiyan, Arul M -- P50 CA069568/CA/NCI NIH HHS/ -- P50 CA069568-11S10020/CA/NCI NIH HHS/ -- P50CA69568/CA/NCI NIH HHS/ -- R01 CA132874/CA/NCI NIH HHS/ -- R01 CA132874-01A1/CA/NCI NIH HHS/ -- R01CA132874/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Nov 27;326(5957):1230. doi: 10.1126/science.1178124. Epub 2009 Oct 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Michigan Center for Translational Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19933109" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line, Tumor ; Chromosome Aberrations ; Chromosomes, Human, Pair 21/*genetics/physiology ; DNA Breaks, Double-Stranded ; Dihydrotestosterone/*metabolism/pharmacology ; Humans ; In Situ Hybridization, Fluorescence ; Male ; *Oncogene Fusion ; Oncogene Proteins, Fusion/*genetics ; Prostatic Neoplasms/*genetics ; Receptors, Androgen/metabolism ; Serine Endopeptidases/*genetics ; Signal Transduction ; Trans-Activators/*genetics
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  • 73
    Publication Date: 2009-05-16
    Description: Late-phase synaptic plasticity depends on the synthesis of new proteins that must function only in the activated synapses. The synaptic tag hypothesis requires input-specific functioning of these proteins after undirected transport. Confirmation of this hypothesis requires specification of a biochemical tagging activity and an example protein that behaves as the hypothesis predicts. We found that in rat neurons, soma-derived Vesl-1S (Homer-1a) protein, a late-phase plasticity-related synaptic protein, prevailed in every dendrite and did not enter spines. N-methyl-d-aspartate receptor activation triggered input-specific spine entry of Vesl-1S proteins, which met many criteria for synaptic tagging. These results suggest that Vesl-1S supports the hypothesis and that the activity-dependent regulation of spine entry functions as a synaptic tag.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Okada, Daisuke -- Ozawa, Fumiko -- Inokuchi, Kaoru -- New York, N.Y. -- Science. 2009 May 15;324(5929):904-9. doi: 10.1126/science.1171498.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mitsubishi Kagaku Institute of Life Sciences (MITILS), 11 Minamiooya, Machida, Tokyo 194-8511, Japan. dada@mitils.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19443779" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/metabolism ; Carrier Proteins/genetics/*metabolism ; Cells, Cultured ; Dendrites/*metabolism ; Dendritic Spines/*metabolism/ultrastructure ; Hippocampus/cytology/metabolism ; Mice ; *Neuronal Plasticity ; Plasmids ; Protein Transport ; Rats ; Rats, Wistar ; Receptors, N-Methyl-D-Aspartate/metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Synapses/*metabolism ; Synaptic Transmission ; Transfection
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  • 74
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-09
    Description: Diseased plants often display phenotypes consistent with hormone perturbations. We review recent data that have revealed roles in plant-microbe interactions for cellular components and signaling molecules that previously were associated only with hormone signaling. A better understanding of cross-talk between hormonal and defense signaling pathways should reveal new potential targets for microbial effectors that attenuate host resistance mechanisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grant, Murray R -- Jones, Jonathan D G -- BB/C514115/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2009 May 8;324(5928):750-2. doi: 10.1126/science.1173771.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biosciences, University of Exeter, Exeter EX4 4QD, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19423816" target="_blank"〉PubMed〈/a〉
    Keywords: Abscisic Acid/metabolism ; Bacteria/metabolism/*pathogenicity ; Cyclopentanes/metabolism ; Ethylenes/metabolism ; Fungi/metabolism/*pathogenicity ; Gene Expression Regulation, Plant ; Gibberellins/metabolism ; *Host-Pathogen Interactions ; Indoleacetic Acids/metabolism ; Oomycetes/pathogenicity ; Oxylipins/metabolism ; Plant Diseases/*microbiology ; Plant Growth Regulators/*metabolism ; Plant Proteins/metabolism ; Plants/genetics/*metabolism/*microbiology ; Repressor Proteins/metabolism ; Salicylic Acid/metabolism ; Signal Transduction
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  • 75
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-09
    Description: The establishment of arbuscular mycorrhizal (AM) symbioses, formed by most flowering plants in association with glomeromycotan fungi, and the root-nodule (RN) symbiosis, formed by legume plants and rhizobial bacteria, requires an ongoing molecular dialogue that underpins the reprogramming of root cells for compatibility. In both endosymbioses, there are distinct phases to the interaction, including a presymbiotic anticipation phase and, subsequently, an intraradical accommodation of the microsymbiont. Maintenance of the endosymbiosis then depends on reciprocal nutrient exchange with the microsymbiont-obtaining plant photosynthates in exchange for mineral nutrients: enhanced phosphate and nitrogen uptake from AM fungi and fixed nitrogen from rhizobia. Despite the taxonomically distinct groups of symbionts, commonalities are observed in the signaling components and the modulation of host cell responses in both AM and RN symbioses, reflecting common mechanisms for plant cell reprogramming during endosymbiosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oldroyd, Giles E D -- Harrison, Maria J -- Paszkowski, Uta -- BB/E003850/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2009 May 8;324(5928):753-4. doi: 10.1126/science.1171644.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Disease and Stress Biology, John Innes Centre, Norwich NR4 7UH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19423817" target="_blank"〉PubMed〈/a〉
    Keywords: *Bacterial Physiological Phenomena ; Gene Expression Regulation, Plant ; Lipopolysaccharides/metabolism ; Mycorrhizae/growth & development/*physiology ; Nitrogen Fixation ; Plant Proteins/metabolism ; Plant Root Nodulation ; Plant Roots/metabolism ; Plants/genetics/*metabolism/*microbiology ; Rhizobiaceae/*physiology ; Root Nodules, Plant/*microbiology ; Signal Transduction ; *Symbiosis ; Transcription Factors/metabolism
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  • 76
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-04-11
    Description: The traditional view that proteins possess absolute functional specificity and a single, fixed structure conflicts with their marked ability to adapt and evolve new functions and structures. We consider an alternative, "avant-garde view" in which proteins are conformationally dynamic and exhibit functional promiscuity. We surmise that these properties are the foundation stones of protein evolvability; they facilitate the divergence of new functions within existing folds and the evolution of entirely new folds. Packing modes of proteins also affect their evolvability, and poorly packed, disordered, and conformationally diverse proteins may exhibit high evolvability. This dynamic view of protein structure, function, and evolvability is extrapolated to describe hypothetical scenarios for the evolution of the early proteins and future research directions in the area of protein dynamism and evolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tokuriki, Nobuhiko -- Tawfik, Dan S -- New York, N.Y. -- Science. 2009 Apr 10;324(5924):203-7. doi: 10.1126/science.1169375.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19359577" target="_blank"〉PubMed〈/a〉
    Keywords: Catalytic Domain ; *Evolution, Molecular ; Ligands ; Models, Molecular ; Mutation ; Protein Conformation ; Protein Folding ; Proteins/*chemistry/genetics/*physiology
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  • 77
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crickmore, Michael A -- New York, N.Y. -- Science. 2009 Dec 4;326(5958):1360-1. doi: 10.1126/science.1184444.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Neurogenetics and Behavior, Rockefeller University, New York, NY 10065, USA. mcrickmore@rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965749" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Awards and Prizes ; Drosophila Proteins/*genetics/*metabolism/*physiology ; Drosophila melanogaster/*anatomy & histology/genetics/metabolism ; Gene Expression Regulation, Developmental ; *Genes, Homeobox ; Genes, Insect ; Homeodomain Proteins/*genetics/*physiology ; Organ Size ; Protein-Serine-Threonine Kinases/genetics/metabolism ; Receptors, Cell Surface/genetics/metabolism ; Signal Transduction ; Transcription Factors/*genetics/*physiology ; Wings, Animal/*anatomy & histology/cytology/growth & development/metabolism
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  • 78
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kidd, Thomas -- New York, N.Y. -- Science. 2009 May 15;324(5929):893-4. doi: 10.1126/science.1174216.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Nevada, Reno, NV 89557, USA. tkidd@unr.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19443775" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology ; Cell Adhesion Molecules/metabolism ; Drosophila Proteins/*genetics/metabolism ; Drosophila melanogaster/*genetics/growth & development/metabolism ; *Gene Expression Regulation, Developmental ; Membrane Proteins/*genetics/metabolism ; Mutation ; Nerve Growth Factors/metabolism ; Nerve Tissue Proteins/*genetics/metabolism ; Nervous System/growth & development ; Neurons/*physiology ; Receptors, Cell Surface/genetics/*metabolism ; Signal Transduction
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  • 79
    Publication Date: 2009-05-02
    Description: The plant hormone abscisic acid (ABA) acts as a developmental signal and as an integrator of environmental cues such as drought and cold. Key players in ABA signal transduction include the type 2C protein phosphatases (PP2Cs) ABI1 and ABI2, which act by negatively regulating ABA responses. In this study, we identify interactors of ABI1 and ABI2 which we have named regulatory components of ABA receptor (RCARs). In Arabidopsis, RCARs belong to a family with 14 members that share structural similarity with class 10 pathogen-related proteins. RCAR1 was shown to bind ABA, to mediate ABA-dependent inactivation of ABI1 or ABI2 in vitro, and to antagonize PP2C action in planta. Other RCARs also mediated ABA-dependent regulation of ABI1 and ABI2, consistent with a combinatorial assembly of receptor complexes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ma, Yue -- Szostkiewicz, Izabela -- Korte, Arthur -- Moes, Daniele -- Yang, Yi -- Christmann, Alexander -- Grill, Erwin -- New York, N.Y. -- Science. 2009 May 22;324(5930):1064-8. doi: 10.1126/science.1172408. Epub 2009 Apr 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lehrstuhl fur Botanik, Technische Universitat Munchen, Am Hochanger 4, D-85354 Freising, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19407143" target="_blank"〉PubMed〈/a〉
    Keywords: Abscisic Acid/*metabolism/pharmacology ; Amino Acid Sequence ; Arabidopsis/genetics/*metabolism/physiology ; Arabidopsis Proteins/antagonists & inhibitors/chemistry/genetics/*metabolism ; Binding Sites ; Carrier Proteins/chemistry/genetics/*metabolism ; Gene Expression Regulation, Plant ; Germination ; Molecular Sequence Data ; Phosphoprotein Phosphatases/antagonists & ; inhibitors/chemistry/genetics/*metabolism ; Plant Roots/growth & development ; Plant Stomata/physiology ; Plants, Genetically Modified ; Point Mutation ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Stereoisomerism ; Up-Regulation
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 80
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-03-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grossniklaus, Ueli -- New York, N.Y. -- Science. 2009 Mar 13;323(5920):1439-40. doi: 10.1126/science.1171412.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Plant Biology and Zurich-Basel Plant Science Center, University of Zurich, Zollikerstrasse 107, 8008 Zurich, Switzerland. grossnik@botinst.uzh.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19286544" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Arabidopsis/embryology/*genetics/*growth & development/metabolism ; Arabidopsis Proteins/chemistry/*genetics/*metabolism ; Cell Division ; *Gene Expression Regulation, Plant ; Genomic Imprinting ; Interleukin-1 Receptor-Associated Kinases/chemistry/*genetics/*metabolism ; MAP Kinase Kinase Kinases/metabolism ; MAP Kinase Signaling System ; Mitogen-Activated Protein Kinase Kinases/metabolism ; Mitogen-Activated Protein Kinases/metabolism ; Mutation ; Seeds/growth & development/metabolism ; Transcription, Genetic
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  • 81
    Publication Date: 2009-05-30
    Description: The neural mechanisms underlying the transition from a drug-nondependent to a drug-dependent state remain elusive. Chronic exposure to drugs has been shown to increase brain-derived neurotrophic factor (BDNF) levels in ventral tegmental area (VTA) neurons. BDNF infusions into the VTA potentiate several behavioral effects of drugs, including psychomotor sensitization and cue-induced drug seeking. We found that a single infusion of BDNF into the VTA promotes a shift from a dopamine-independent to a dopamine-dependent opiate reward system, identical to that seen when an opiate-naive rat becomes dependent and withdrawn. This shift involves a switch in the gamma-aminobutyric acid type A (GABAA) receptors of VTA GABAergic neurons, from inhibitory to excitatory signaling.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2913611/" 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/PMC2913611/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vargas-Perez, Hector -- Ting-A Kee, Ryan -- Walton, Christine H -- Hansen, D Micah -- Razavi, Rozita -- Clarke, Laura -- Bufalino, Mary Rose -- Allison, David W -- Steffensen, Scott C -- van der Kooy, Derek -- AA13666/AA/NIAAA NIH HHS/ -- R01 AA013666/AA/NIAAA NIH HHS/ -- R01 AA013666-09/AA/NIAAA NIH HHS/ -- R01 AA020919/AA/NIAAA NIH HHS/ -- New York, N.Y. -- Science. 2009 Jun 26;324(5935):1732-4. doi: 10.1126/science.1168501. Epub 2009 May 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada. vargashector@yahoo.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19478142" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bicuculline/pharmacology ; Brain-Derived Neurotrophic Factor/administration & ; dosage/genetics/*metabolism/*pharmacology ; Conditioning (Psychology) ; Dopamine/physiology ; Dopamine Antagonists/administration & dosage/pharmacology ; Flupenthixol/administration & dosage/pharmacology ; GABA Agonists/pharmacology ; GABA Antagonists/pharmacology ; Heroin Dependence/metabolism ; Male ; Morphine/administration & dosage ; Muscimol/pharmacology ; Opioid-Related Disorders/*metabolism ; RNA, Messenger/genetics/metabolism ; Rats ; Rats, Wistar ; Receptors, GABA-A/metabolism ; *Reward ; Signal Transduction ; Substance Withdrawal Syndrome/metabolism ; Ventral Tegmental Area/drug effects/*metabolism
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  • 82
    Publication Date: 2009-02-21
    Description: Aging induces gradual yet massive cell death in higher organisms, including annual plants. Even so, the underlying regulatory mechanisms are barely known, despite the long-standing interest in this topic. Here, we demonstrate that ORE1, which is a NAC (NAM, ATAF, and CUC) transcription factor, positively regulates aging-induced cell death in Arabidopsis leaves. ORE1 expression is up-regulated concurrently with leaf aging by EIN2 but is negatively regulated by miR164. miR164 expression gradually decreases with aging through negative regulation by EIN2, which leads to the elaborate up-regulation of ORE1 expression. However, EIN2 still contributes to aging-induced cell death in the absence of ORE1. The trifurcate feed-forward pathway involving ORE1, miR164, and EIN2 provides a highly robust regulation to ensure that aging induces cell death in Arabidopsis leaves.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Jin Hee -- Woo, Hye Ryun -- Kim, Jeongsik -- Lim, Pyung Ok -- Lee, In Chul -- Choi, Seung Hee -- Hwang, Daehee -- Nam, Hong Gil -- New York, N.Y. -- Science. 2009 Feb 20;323(5917):1053-7. doi: 10.1126/science.1166386.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Life Sciences, Pohang University of Science and Technology, Hyoja-dong, Pohang, Kyungbuk, 790-784, Republic of Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19229035" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; *Apoptosis ; Arabidopsis/cytology/genetics/*physiology ; Arabidopsis Proteins/genetics/*physiology ; Down-Regulation ; Gene Expression Regulation, Plant ; Genes, Plant ; MicroRNAs/genetics/*physiology ; Mutation ; Plant Leaves/cytology/*physiology ; Plants, Genetically Modified ; RNA, Messenger/genetics/metabolism ; RNA, Plant/genetics/*physiology ; Receptors, Cell Surface/genetics/*physiology ; Signal Transduction ; Transcription Factors/genetics/*physiology ; Up-Regulation
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  • 83
    Publication Date: 2009-01-24
    Description: Regeneration of injured neurons can restore function, but most neurons regenerate poorly or not at all. The failure to regenerate in some cases is due to a lack of activation of cell-intrinsic regeneration pathways. These pathways might be targeted for the development of therapies that can restore neuron function after injury or disease. Here, we show that the DLK-1 mitogen-activated protein (MAP) kinase pathway is essential for regeneration in Caenorhabditis elegans motor neurons. Loss of this pathway eliminates regeneration, whereas activating it improves regeneration. Further, these proteins also regulate the later step of growth cone migration. We conclude that after axon injury, activation of this MAP kinase cascade is required to switch the mature neuron from an aplastic state to a state capable of growth.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2729122/" 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/PMC2729122/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hammarlund, Marc -- Nix, Paola -- Hauth, Linda -- Jorgensen, Erik M -- Bastiani, Michael -- 1R21NS060275/NS/NINDS NIH HHS/ -- NS034307/NS/NINDS NIH HHS/ -- R21 NS060275-02/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):802-6. doi: 10.1126/science.1165527. Epub 2009 Jan 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112-0840, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19164707" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Axons/*physiology/ultrastructure ; Axotomy ; Caenorhabditis elegans/genetics/*physiology ; Caenorhabditis elegans Proteins/genetics/*metabolism ; Growth Cones/physiology ; MAP Kinase Kinase 4/genetics/metabolism ; MAP Kinase Kinase Kinases/genetics/*metabolism ; *MAP Kinase Signaling System ; Mitogen-Activated Protein Kinases/genetics/metabolism ; Models, Biological ; Motor Neurons/*physiology ; Mutation ; Nerve Regeneration/physiology ; RNA Interference ; gamma-Aminobutyric Acid/metabolism
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  • 84
    Publication Date: 2009-05-30
    Description: Intracellular trafficking of the glucose transporter GLUT4 from storage compartments to the plasma membrane is triggered in muscle and fat during the body's response to insulin. Clathrin is involved in intracellular trafficking, and in humans, the clathrin heavy-chain isoform CHC22 is highly expressed in skeletal muscle. We found a role for CHC22 in the formation of insulin-responsive GLUT4 compartments in human muscle and adipocytes. CHC22 also associated with expanded GLUT4 compartments in muscle from type 2 diabetic patients. Tissue-specific introduction of CHC22 in mice, which have only a pseudogene for this protein, caused aberrant localization of GLUT4 transport pathway components in their muscle, as well as features of diabetes. Thus, CHC22-dependent membrane trafficking constitutes a species-restricted pathway in human muscle and fat with potential implications for type 2 diabetes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2975026/" 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/PMC2975026/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vassilopoulos, Stephane -- Esk, Christopher -- Hoshino, Sachiko -- Funke, Birgit H -- Chen, Chih-Ying -- Plocik, Alex M -- Wright, Woodring E -- Kucherlapati, Raju -- Brodsky, Frances M -- GM038093/GM/NIGMS NIH HHS/ -- HD47863/HD/NICHD NIH HHS/ -- R01 GM038093/GM/NIGMS NIH HHS/ -- R01 GM038093-19/GM/NIGMS NIH HHS/ -- R01 GM038093-19S1/GM/NIGMS NIH HHS/ -- R01 GM038093-20A1/GM/NIGMS NIH HHS/ -- R01 HD047863/HD/NICHD NIH HHS/ -- R01 HD047863-01/HD/NICHD NIH HHS/ -- R01 HD047863-02/HD/NICHD NIH HHS/ -- R01 HD047863-03/HD/NICHD NIH HHS/ -- R01 HD047863-04/HD/NICHD NIH HHS/ -- R01 HD047863-05/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2009 May 29;324(5931):1192-6. doi: 10.1126/science.1171529.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioengineering and Therapeutic Sciences, University of California, School of Pharmacy, San Francisco (UCSF), San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19478182" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/cytology/*metabolism/ultrastructure ; Animals ; Blood Glucose/metabolism ; Cell Differentiation ; Cell Line ; Cell Membrane/metabolism ; Clathrin/chemistry/*metabolism ; Clathrin Heavy Chains ; Clathrin-Coated Vesicles/*metabolism ; Diabetes Mellitus, Type 2/*metabolism ; Glucose/*metabolism ; Glucose Transporter Type 4/*metabolism ; Humans ; Insulin/blood/pharmacology ; Mice ; Mice, Transgenic ; Muscle Fibers, Skeletal/metabolism ; Muscle, Skeletal/*metabolism/ultrastructure ; Myoblasts/cytology/metabolism/ultrastructure ; Protein Isoforms/chemistry/metabolism ; Protein Transport ; Signal Transduction
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  • 85
    Publication Date: 2009-12-08
    Description: The molecular mechanisms that achieve homeostatic stabilization of neural function remain largely unknown. To better understand how neural function is stabilized during development and throughout life, we used an electrophysiology-based forward genetic screen and assessed the function of more than 250 neuronally expressed genes for a role in the homeostatic modulation of synaptic transmission in Drosophila. This screen ruled out the involvement of numerous synaptic proteins and identified a critical function for dysbindin, a gene linked to schizophrenia in humans. We found that dysbindin is required presynaptically for the retrograde, homeostatic modulation of neurotransmission, and functions in a dose-dependent manner downstream or independently of calcium influx. Thus, dysbindin is essential for adaptive neural plasticity and may link altered homeostatic signaling with a complex neurological disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3063306/" 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/PMC3063306/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dickman, Dion K -- Davis, Graeme W -- NS39313/NS/NINDS NIH HHS/ -- R01 NS039313/NS/NINDS NIH HHS/ -- R01 NS039313-12/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 20;326(5956):1127-30. doi: 10.1126/science.1179685.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965435" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/metabolism ; Calcium Channels/genetics/metabolism ; Carrier Proteins/genetics ; Drosophila Proteins/genetics/metabolism ; Drosophila melanogaster/*genetics/*physiology ; Dystrophin-Associated Proteins ; Genes, Insect ; Glutamic Acid/metabolism ; Homeostasis ; Humans ; Mutation ; Neuromuscular Junction/physiology ; Neuronal Plasticity ; Schizophrenia/genetics ; Synapses/*physiology/ultrastructure ; *Synaptic Transmission ; Synaptic Vesicles/metabolism ; Transgenes
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  • 86
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-10-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉King, David G -- Kashi, Yechezkel -- New York, N.Y. -- Science. 2009 Oct 9;326(5950):229-30. doi: 10.1126/science.326_229.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy, Southern Illinois University, Carbondale, IL 62901, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19815757" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA/chemistry/*genetics ; Evolution, Molecular ; Mutation ; *Repetitive Sequences, Nucleic Acid
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  • 87
    Publication Date: 2009-10-03
    Description: Intraspecific chemical communication is mediated by signals called pheromones. Caenorhabditis elegans secretes a mixture of small molecules (collectively termed dauer pheromone) that regulates entry into the alternate dauer larval stage and also modulates adult behavior via as yet unknown receptors. Here, we identify two heterotrimeric GTP-binding protein (G protein)-coupled receptors (GPCRs) that mediate dauer formation in response to a subset of dauer pheromone components. The SRBC-64 and SRBC-66 GPCRs are members of the large Caenorhabditis-specific SRBC subfamily and are expressed in the ASK chemosensory neurons, which are required for pheromone-induced dauer formation. Expression of both, but not each receptor alone, confers pheromone-mediated effects on heterologous cells. Identification of dauer pheromone receptors will allow a better understanding of the signaling cascades that transduce the context-dependent effects of ecologically important chemical signals.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4448937/" 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/PMC4448937/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Kyuhyung -- Sato, Koji -- Shibuya, Mayumi -- Zeiger, Danna M -- Butcher, Rebecca A -- Ragains, Justin R -- Clardy, Jon -- Touhara, Kazushige -- Sengupta, Piali -- F32 GM077943/GM/NIGMS NIH HHS/ -- P30 NS045713/NS/NINDS NIH HHS/ -- P30 NS45713/NS/NINDS NIH HHS/ -- R01 CA024487/CA/NCI NIH HHS/ -- R01 CA24487/CA/NCI NIH HHS/ -- R01 GM056223/GM/NIGMS NIH HHS/ -- R01 GM56223/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):994-8. doi: 10.1126/science.1176331. Epub 2009 Oct 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology and National Center for Behavioral Genomics, Brandeis University, Waltham, MA 02454, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19797623" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caenorhabditis elegans/genetics/*growth & development/*physiology ; Caenorhabditis elegans Proteins/genetics/physiology ; Calcium/metabolism ; Cell Line ; Chemoreceptor Cells/metabolism ; Cyclic AMP/metabolism ; Cyclic GMP/metabolism ; GTP-Binding Protein alpha Subunits, Gi-Go/physiology ; Gene Expression Regulation, Developmental ; Genes, Helminth ; Guanylate Cyclase/antagonists & inhibitors/metabolism ; Hexoses/chemistry/physiology ; Humans ; Mutation ; Pheromones/*physiology ; Receptors, G-Protein-Coupled ; Reproduction ; Signal Transduction ; Transfection
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  • 88
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, Robert H -- New York, N.Y. -- Science. 2009 Dec 11;326(5959):1494-5. doi: 10.1126/science.1183842.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neurology, Biochemistry and Molecular Pharmacology and Program in Neuroscience, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01655, USA. robert.brown@umassmed.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20007892" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/pathology/*physiopathology ; Animals ; Binding Sites ; Carrier Proteins/metabolism ; Disease Models, Animal ; Histone Deacetylases/metabolism ; Mice ; Mice, Transgenic ; MicroRNAs/genetics/*metabolism ; Muscle Cells/enzymology ; Muscle Denervation ; Muscle, Skeletal/innervation/metabolism ; Myostatin/genetics ; Neuromuscular Junction/*pathology/*physiology ; RNA Interference ; Sequence Analysis, RNA ; Signal Transduction
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 89
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-01-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Semple, Colin A M -- Taylor, Martin S -- GR078968/Wellcome Trust/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2009 Jan 16;323(5912):347-8. doi: 10.1126/science.1169408.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, Edinburgh EH4 2XU, UK. colins@hgu.mrc.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19150834" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromatin/*physiology/ultrastructure ; DNA/*genetics ; *Genetic Variation ; *Genome ; INDEL Mutation ; Mutation ; Nucleosomes/*physiology ; Oryzias/*genetics ; Promoter Regions, Genetic ; Selection, Genetic ; *Transcription Initiation Site
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  • 90
    Publication Date: 2009-05-30
    Description: Relative to most regions of the genome, tandemly repeated DNA sequences display a greater propensity to mutate. A search for tandem repeats in the Saccharomyces cerevisiae genome revealed that the nucleosome-free region directly upstream of genes (the promoter region) is enriched in repeats. As many as 25% of all gene promoters contain tandem repeat sequences. Genes driven by these repeat-containing promoters show significantly higher rates of transcriptional divergence. Variations in repeat length result in changes in expression and local nucleosome positioning. Tandem repeats are variable elements in promoters that may facilitate evolutionary tuning of gene expression by affecting local chromatin structure.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3132887/" 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/PMC3132887/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vinces, Marcelo D -- Legendre, Matthieu -- Caldara, Marina -- Hagihara, Masaki -- Verstrepen, Kevin J -- P50 GM068763/GM/NIGMS NIH HHS/ -- P50 GM068763-06/GM/NIGMS NIH HHS/ -- P50GM068763/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 May 29;324(5931):1213-6. doi: 10.1126/science.1170097.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉FAS Center for Systems Biology, Harvard University, 52 Oxford Street, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19478187" target="_blank"〉PubMed〈/a〉
    Keywords: *Evolution, Molecular ; *Gene Expression Regulation, Fungal ; Genome, Fungal ; Mutation ; Nucleosomes/metabolism/ultrastructure ; *Promoter Regions, Genetic ; Saccharomyces cerevisiae/*genetics ; *Tandem Repeat Sequences ; *Transcription, Genetic
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  • 91
    Publication Date: 2009-03-21
    Description: The gamma-secretase complex plays a role in Alzheimer's disease and cancer progression. The development of clinically useful inhibitors, however, is complicated by the role of the gamma-secretase complex in regulated intramembrane proteolysis of Notch and other essential proteins. Different gamma-secretase complexes containing different Presenilin or Aph1 protein subunits are present in various tissues. Here we show that these complexes have heterogeneous biochemical and physiological properties. Specific inactivation of the Aph1B gamma-secretase in a mouse Alzheimer's disease model led to improvements of Alzheimer's disease-relevant phenotypic features without any Notch-related side effects. The Aph1B complex contributes to total gamma-secretase activity in the human brain, and thus specific targeting of Aph1B-containing gamma-secretase complexes may help generate less toxic therapies for Alzheimer's disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2740474/" 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/PMC2740474/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Serneels, Lutgarde -- Van Biervliet, Jerome -- Craessaerts, Katleen -- Dejaegere, Tim -- Horre, Katrien -- Van Houtvin, Tine -- Esselmann, Hermann -- Paul, Sabine -- Schafer, Martin K -- Berezovska, Oksana -- Hyman, Bradley T -- Sprangers, Ben -- Sciot, Raf -- Moons, Lieve -- Jucker, Mathias -- Yang, Zhixiang -- May, Patrick C -- Karran, Eric -- Wiltfang, Jens -- D'Hooge, Rudi -- De Strooper, Bart -- AG 13579/AG/NIA NIH HHS/ -- AG026593/AG/NIA NIH HHS/ -- P01 AG015379/AG/NIA NIH HHS/ -- P01 AG015379-110009/AG/NIA NIH HHS/ -- P01AG015379/AG/NIA NIH HHS/ -- R01 AG026593/AG/NIA NIH HHS/ -- R01 AG026593-01A1/AG/NIA NIH HHS/ -- R01AG026593/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2009 May 1;324(5927):639-42. doi: 10.1126/science.1171176. Epub 2009 Mar 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department for Molecular and Developmental Genetics, VIB, KULeuven, Herestraat 49, 3000 Leuven, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19299585" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/drug therapy/*metabolism ; Amyloid Precursor Protein Secretases/antagonists & ; inhibitors/*chemistry/genetics/*metabolism ; Amyloid beta-Peptides/analysis/chemistry/*metabolism ; Amyloid beta-Protein Precursor/metabolism ; Animals ; Brain/*metabolism ; Disease Models, Animal ; Endopeptidases/chemistry/genetics/*metabolism ; Female ; Humans ; Maze Learning ; Membrane Proteins/metabolism ; Memory ; Mice ; Neurons/metabolism ; Peptide Fragments/analysis/metabolism ; Peptide Hydrolases/metabolism ; Presenilin-1/chemistry/genetics/metabolism ; Protein Subunits/chemistry/metabolism ; Receptor, Notch1/metabolism ; Signal Transduction
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  • 92
    Publication Date: 2009-12-17
    Description: The molecular mechanisms underlying major phenotypic changes that have evolved repeatedly in nature are generally unknown. Pelvic loss in different natural populations of threespine stickleback fish has occurred through regulatory mutations deleting a tissue-specific enhancer of the Pituitary homeobox transcription factor 1 (Pitx1) gene. The high prevalence of deletion mutations at Pitx1 may be influenced by inherent structural features of the locus. Although Pitx1 null mutations are lethal in laboratory animals, Pitx1 regulatory mutations show molecular signatures of positive selection in pelvic-reduced populations. These studies illustrate how major expression and morphological changes can arise from single mutational leaps in natural populations, producing new adaptive alleles via recurrent regulatory alterations in a key developmental control gene.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3109066/" 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/PMC3109066/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chan, Yingguang Frank -- Marks, Melissa E -- Jones, Felicity C -- Villarreal, Guadalupe Jr -- Shapiro, Michael D -- Brady, Shannon D -- Southwick, Audrey M -- Absher, Devin M -- Grimwood, Jane -- Schmutz, Jeremy -- Myers, Richard M -- Petrov, Dmitri -- Jonsson, Bjarni -- Schluter, Dolph -- Bell, Michael A -- Kingsley, David M -- P50 HG002568/HG/NHGRI NIH HHS/ -- P50 HG002568-09/HG/NHGRI NIH HHS/ -- P50 HG02568/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Jan 15;327(5963):302-5. doi: 10.1126/science.1182213. Epub 2009 Dec 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Biology and Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20007865" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; *Biological Evolution ; Chromosome Fragile Sites ; Chromosome Mapping ; Crosses, Genetic ; DNA, Intergenic ; *Enhancer Elements, Genetic ; Fish Proteins/*genetics ; Molecular Sequence Data ; Mutation ; Paired Box Transcription Factors/*genetics ; Pelvis/anatomy & histology ; Selection, Genetic ; *Sequence Deletion ; Smegmamorpha/*anatomy & histology/*genetics/growth & development
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  • 93
    Publication Date: 2009-07-11
    Description: mu-Opioid receptor (MOR) agonists represent the gold standard for the treatment of severe pain but may paradoxically also enhance pain sensitivity, that is, lead to opioid-induced hyperalgesia (OIH). We show that abrupt withdrawal from MOR agonists induces long-term potentiation (LTP) at the first synapse in pain pathways. Induction of opioid withdrawal LTP requires postsynaptic activation of heterotrimeric guanine nucleotide-binding proteins and N-methyl-d-aspartate receptors and a rise of postsynaptic calcium concentrations. In contrast, the acute depression by opioids is induced presynaptically at these synapses. Withdrawal LTP can be prevented by tapered withdrawal and shares pharmacology and signal transduction pathways with OIH. These findings provide a previously unrecognized target to selectively combat pro-nociceptive effects of opioids without compromising opioid analgesia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Drdla, Ruth -- Gassner, Matthias -- Gingl, Ewald -- Sandkuhler, Jurgen -- P 18129/Austrian Science Fund FWF/Austria -- New York, N.Y. -- Science. 2009 Jul 10;325(5937):207-10. doi: 10.1126/science.1171759.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurophysiology, Center for Brain Research, Medical University of Vienna, Spitalgasse 4, 1090 Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19590003" target="_blank"〉PubMed〈/a〉
    Keywords: Analgesics, Opioid/administration & dosage/*adverse effects/pharmacology ; Animals ; Calcium/metabolism ; Enkephalin, Ala(2)-MePhe(4)-Gly(5)-/administration & dosage/adverse ; effects/pharmacology ; Evoked Potentials ; GTP-Binding Proteins/metabolism ; Hyperalgesia/chemically induced ; *Long-Term Potentiation/drug effects ; Male ; Nerve Fibers, Unmyelinated/physiology ; Patch-Clamp Techniques ; Piperidines/administration & dosage/adverse effects/pharmacology ; Posterior Horn Cells/drug effects/physiology ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/metabolism ; Receptors, Opioid, mu/*agonists ; Signal Transduction ; Substance Withdrawal Syndrome/*physiopathology ; Synapses/drug effects/*physiology
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  • 94
    Publication Date: 2009-05-02
    Description: Type 2C protein phosphatases (PP2Cs) are vitally involved in abscisic acid (ABA) signaling. Here, we show that a synthetic growth inhibitor called pyrabactin functions as a selective ABA agonist. Pyrabactin acts through PYRABACTIN RESISTANCE 1 (PYR1), the founding member of a family of START proteins called PYR/PYLs, which are necessary for both pyrabactin and ABA signaling in vivo. We show that ABA binds to PYR1, which in turn binds to and inhibits PP2Cs. We conclude that PYR/PYLs are ABA receptors functioning at the apex of a negative regulatory pathway that controls ABA signaling by inhibiting PP2Cs. Our results illustrate the power of the chemical genetic approach for sidestepping genetic redundancy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2827199/" 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/PMC2827199/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, Sang-Youl -- Fung, Pauline -- Nishimura, Noriyuki -- Jensen, Davin R -- Fujii, Hiroaki -- Zhao, Yang -- Lumba, Shelley -- Santiago, Julia -- Rodrigues, Americo -- Chow, Tsz-Fung F -- Alfred, Simon E -- Bonetta, Dario -- Finkelstein, Ruth -- Provart, Nicholas J -- Desveaux, Darrell -- Rodriguez, Pedro L -- McCourt, Peter -- Zhu, Jian-Kang -- Schroeder, Julian I -- Volkman, Brian F -- Cutler, Sean R -- 01GM59138/GM/NIGMS NIH HHS/ -- R01 GM060396/GM/NIGMS NIH HHS/ -- R01 GM060396-08/GM/NIGMS NIH HHS/ -- R01GM060396/GM/NIGMS NIH HHS/ -- U54GM074901/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 May 22;324(5930):1068-71. doi: 10.1126/science.1173041. Epub 2009 Apr 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Botany and Plant Sciences, University of California at Riverside, Riverside, CA 92521, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19407142" target="_blank"〉PubMed〈/a〉
    Keywords: Abscisic Acid/agonists/*metabolism ; Arabidopsis/enzymology/genetics/growth & development/*metabolism ; Arabidopsis Proteins/*antagonists & inhibitors/genetics/*metabolism ; Genes, Plant ; Germination/drug effects ; Ligands ; Membrane Transport Proteins/genetics/*metabolism ; Mutation ; Naphthalenes/chemistry/metabolism/*pharmacology ; Phosphoprotein Phosphatases/*antagonists & inhibitors/metabolism ; Protein Binding ; Recombinant Fusion Proteins/metabolism ; Seeds/growth & development/metabolism ; Signal Transduction ; Sulfonamides/chemistry/metabolism/*pharmacology ; Two-Hybrid System Techniques
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  • 95
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-01-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cahoon, Lauren -- New York, N.Y. -- Science. 2009 Jan 9;323(5911):203-5. doi: 10.1126/science.323.5911.203.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131605" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/pathology/physiopathology ; Cognition Disorders/drug therapy/genetics/pathology/physiopathology ; Epilepsy/etiology ; Humans ; *Mental Disorders/drug therapy/genetics/pathology/physiopathology ; Neurons/physiology ; Protein Kinases/metabolism ; Signal Transduction ; Sirolimus/*therapeutic use ; TOR Serine-Threonine Kinases ; *Tuberous Sclerosis/drug therapy/genetics/pathology/physiopathology ; Tumor Suppressor Proteins/genetics/metabolism
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  • 96
    Publication Date: 2009-02-14
    Description: Infection by human rhinovirus (HRV) is a major cause of upper and lower respiratory tract disease worldwide and displays considerable phenotypic variation. We examined diversity by completing the genome sequences for all known serotypes (n = 99). Superimposition of capsid crystal structure and optimal-energy RNA configurations established alignments and phylogeny. These revealed conserved motifs; clade-specific diversity, including a potential newly identified species (HRV-D); mutations in field isolates; and recombination. In analogy with poliovirus, a hypervariable 5' untranslated region tract may affect virulence. A configuration consistent with nonscanning internal ribosome entry was found in all HRVs and may account for rapid translation. The data density from complete sequences of the reference HRVs provided high resolution for this degree of modeling and serves as a platform for full genome-based epidemiologic studies and antiviral or vaccine development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3923423/" 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/PMC3923423/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palmenberg, Ann C -- Spiro, David -- Kuzmickas, Ryan -- Wang, Shiliang -- Djikeng, Appolinaire -- Rathe, Jennifer A -- Fraser-Liggett, Claire M -- Liggett, Stephen B -- R01 HL091490/HL/NHLBI NIH HHS/ -- U19 AI070503/AI/NIAID NIH HHS/ -- U19-AI070503/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 3;324(5923):55-9. doi: 10.1126/science.1165557. Epub 2009 Feb 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Molecular Virology, University of Wisconsin, Madison, WI 53706, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19213880" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions ; 5' Untranslated Regions ; Base Composition ; Base Sequence ; Codon, Terminator ; *Evolution, Molecular ; *Genome, Viral ; Humans ; Molecular Sequence Data ; Mutation ; Nucleic Acid Conformation ; Open Reading Frames ; Phylogeny ; Picornaviridae Infections/virology ; Polyproteins/biosynthesis/chemistry/genetics ; RNA, Viral/chemistry/*genetics ; Recombination, Genetic ; Respiratory Tract Infections/virology ; Rhinovirus/classification/*genetics/ultrastructure ; Sequence Alignment ; Sequence Analysis, RNA ; Serotyping ; Viral Proteins/biosynthesis/chemistry/genetics
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  • 97
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-03-17
    Description: As fundamental units of neuronal communication, chemical synapses are composed of presynaptic and postsynaptic specializations that form at specific locations with defined shape and size. Synaptic assembly must be tightly regulated to prevent overgrowth of the synapse size and number, but the molecular mechanisms that inhibit synapse assembly are poorly understood. We identified regulator of synaptogenesis-1 (RSY-1) as an evolutionarily conserved molecule that locally antagonized presynaptic assembly. The loss of RSY-1 in Caenorhabditis elegans led to formation of extra synapses and recruitment of excessive synaptic material to presynaptic sites. RSY-1 directly interacted with and negatively regulated SYD-2/liprin-alpha, a master assembly molecule that recruits numerous synaptic components to presynaptic sites. RSY-1 also bound and regulated SYD-1, a synaptic protein required for proper functioning of SYD-2. Thus, local inhibitory mechanisms govern synapse formation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3087376/" 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/PMC3087376/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Patel, Maulik R -- Shen, Kang -- 1R01NS048392/NS/NINDS NIH HHS/ -- R01 NS048392/NS/NINDS NIH HHS/ -- R01 NS048392-05/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Mar 13;323(5920):1500-3. doi: 10.1126/science.1169025.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neurosciences Program, Stanford University, 385 Serra Mall, Herrin Labs, Room 144, Stanford University, Stanford,CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19286562" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Caenorhabditis elegans/genetics/*physiology ; Caenorhabditis elegans Proteins/chemistry/genetics/*metabolism ; Carrier Proteins/metabolism ; Cell Line ; Cell Nucleus/metabolism ; Humans ; Mutation ; Nerve Tissue Proteins/metabolism ; Nuclear Proteins/chemistry/genetics/*metabolism ; Phosphoproteins/genetics/metabolism ; Protein Binding ; Protein Interaction Mapping ; Protein Isoforms/chemistry/genetics/metabolism ; Protein Structure, Tertiary ; Recombinant Fusion Proteins/metabolism ; Synapses/metabolism/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 98
    Publication Date: 2009-04-04
    Description: Sleep is important for memory consolidation and is responsive to waking experience. Clock circuitry is uniquely positioned to coordinate interactions between processes underlying memory and sleep need. Flies increase sleep both after exposure to an enriched social environment and after protocols that induce long-term memory. We found that flies mutant for rutabaga, period, and blistered were deficient for experience-dependent increases in sleep. Rescue of each of these genes within the ventral lateral neurons (LNVs) restores increased sleep after social enrichment. Social experiences that induce increased sleep were associated with an increase in the number of synaptic terminals in the LNV projections into the medulla. The number of synaptic terminals was reduced during sleep and this decline was prevented by sleep deprivation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2850598/" 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/PMC2850598/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Donlea, Jeffrey M -- Ramanan, Narendrakumar -- Shaw, Paul J -- F31 NS063514-01A1/NS/NINDS NIH HHS/ -- R01-NS051305-01A1/NS/NINDS NIH HHS/ -- T32-GM008151/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 3;324(5923):105-8. doi: 10.1126/science.1166657.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Neurobiology, Washington University in St. Louis, 660 South Euclid Avenue, St. Louis, Missouri, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19342592" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/genetics/physiology ; Animals ; Biological Clocks/genetics ; Brain/physiology ; Circadian Rhythm/genetics ; Drosophila Proteins/genetics/metabolism/physiology ; Drosophila melanogaster/cytology/genetics/*physiology ; Female ; Genes, Insect ; Male ; Memory ; Models, Animal ; Mutation ; *Neuronal Plasticity ; Neurons/*physiology/ultrastructure ; Nuclear Proteins/genetics/physiology ; Period Circadian Proteins ; Presynaptic Terminals/physiology/ultrastructure ; Receptor, Epidermal Growth Factor/genetics/metabolism ; Receptors, Invertebrate Peptide/genetics/metabolism ; Serum Response Factor/genetics/physiology ; Sleep/*physiology ; Sleep Deprivation ; Social Behavior ; Synapses/*physiology
    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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  • 99
    Publication Date: 2009-01-10
    Description: Sex determination in maize is controlled by a developmental cascade leading to the formation of unisexual florets derived from an initially bisexual floral meristem. Abortion of pistil primordia in staminate florets is controlled by a tasselseed-mediated cell death process. We positionally cloned and characterized the function of the sex determination gene tasselseed1 (ts1). The TS1 protein encodes a plastid-targeted lipoxygenase with predicted 13-lipoxygenase specificity, which suggests that TS1 may be involved in the biosynthesis of the plant hormone jasmonic acid. In the absence of a functional ts1 gene, lipoxygenase activity was missing and endogenous jasmonic acid concentrations were reduced in developing inflorescences. Application of jasmonic acid to developing inflorescences rescued stamen development in mutant ts1 and ts2 inflorescences, revealing a role for jasmonic acid in male flower development in maize.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Acosta, Ivan F -- Laparra, Helene -- Romero, Sandra P -- Schmelz, Eric -- Hamberg, Mats -- Mottinger, John P -- Moreno, Maria A -- Dellaporta, Stephen L -- R01 GM038148/GM/NIGMS NIH HHS/ -- R01 GM038148-19/GM/NIGMS NIH HHS/ -- R01 GM38148/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 9;323(5911):262-5. doi: 10.1126/science.1164645.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06511, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131630" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cloning, Molecular ; Cyclopentanes/*metabolism/pharmacology ; Flowers/growth & development ; Genes, Plant ; Lipoxygenase/chemistry/genetics/*metabolism ; Molecular Sequence Data ; Mutation ; Oxylipins/*metabolism/pharmacology ; Plant Proteins/chemistry/*genetics/*metabolism ; Plastids/enzymology ; *Signal Transduction ; Zea mays/enzymology/*genetics/growth & development/*metabolism
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 100
    Publication Date: 2009-10-10
    Description: Blood vessels form de novo (vasculogenesis) or upon sprouting of capillaries from preexisting vessels (angiogenesis). With high-resolution imaging of zebrafish vascular development, we uncovered a third mode of blood vessel formation whereby the first embryonic artery and vein, two unconnected blood vessels, arise from a common precursor vessel. The first embryonic vein formed by selective sprouting of progenitor cells from the precursor vessel, followed by vessel segregation. These processes were regulated by the ligand EphrinB2 and its receptor EphB4, which are expressed in arterial-fated and venous-fated progenitors, respectively, and interact to orient the direction of progenitor migration. Thus, directional control of progenitor migration drives arterial-venous segregation and generation of separate parallel vessels from a single precursor vessel, a process essential for vascular development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2865998/" 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/PMC2865998/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herbert, Shane P -- Huisken, Jan -- Kim, Tyson N -- Feldman, Morri E -- Houseman, Benjamin T -- Wang, Rong A -- Shokat, Kevan M -- Stainier, Didier Y R -- 082719/Wellcome Trust/United Kingdom -- HL54737/HL/NHLBI NIH HHS/ -- R01 HL054737/HL/NHLBI NIH HHS/ -- R01 HL054737-14/HL/NHLBI NIH HHS/ -- R01 HL075033/HL/NHLBI NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2009 Oct 9;326(5950):294-8. doi: 10.1126/science.1178577.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, Programs in Developmental Biology, Genetics and Human Genetics, Cardiovascular Research Institute, University of California, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19815777" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Aorta/cytology/embryology ; Arteries/cytology/*embryology ; Cell Movement ; Endothelial Cells/cytology/*physiology ; Ephrin-B2/*metabolism ; *Morphogenesis ; Phosphatidylinositol 3-Kinases/metabolism ; Receptor, EphB4/*metabolism ; Receptors, Notch/metabolism ; Signal Transduction ; Stem Cells/cytology/*physiology ; Vascular Endothelial Growth Factor A/metabolism ; Vascular Endothelial Growth Factor Receptor-2/metabolism ; Vascular Endothelial Growth Factor Receptor-3/metabolism ; Veins/cytology/*embryology ; Zebrafish ; Zebrafish Proteins/metabolism
    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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