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  • 1
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    Synapsins: mosaics of shared and individual domains in a family of synaptic vesicle phosphoproteins (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-29
    Description: Synapsins are neuronal phosphoproteins that coat synaptic vesicles, bind to the cytoskeleton, and are believed to function in the regulation of neurotransmitter release. Molecular cloning reveals that the synapsins comprise a family of four homologous proteins whose messenger RNA's are generated by differential splicing of transcripts from two genes. Each synapsin is a mosaic composed of homologous amino-terminal domains common to all synapsins and different combinations of distinct carboxyl-terminal domains. Immunocytochemical studies demonstrate that all four synapsins are widely distributed in nerve terminals, but that their relative amounts vary among different kinds of synapses. The structural diversity and differential distribution of the four synapsins suggest common and different roles of each in the integration of distinct signal transduction pathways that modulate neurotransmitter release in various types of neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sudhof, T C -- Czernik, A J -- Kao, H T -- Takei, K -- Johnston, P A -- Horiuchi, A -- Kanazir, S D -- Wagner, M A -- Perin, M S -- De Camilli, P -- AA 06944/AA/NIAAA NIH HHS/ -- MH 39327/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 29;245(4925):1474-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Dallas, TX.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2506642" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Molecular Sequence Data ; Nerve Tissue Proteins/*genetics ; Neuropeptides/*genetics ; Phosphoproteins/*genetics ; Sequence Homology, Nucleic Acid ; Structure-Activity Relationship ; Synapsins ; Synaptic Vesicles/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    The robustness and evolvability of transcription factor binding sites (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-02-22
    Description: Robustness, the maintenance of a character in the presence of genetic change, can help preserve adaptive traits but also may hinder evolvability, the ability to bring forth novel adaptations. We used genotype networks to analyze the binding site repertoires of 193 transcription factors from mice and yeast, providing empirical evidence that robustness and evolvability need not be conflicting properties. Network vertices represent binding sites where two sites are connected if they differ in a single nucleotide. We show that the binding sites of larger genotype networks are not only more robust, but the sequences adjacent to such networks can also bind more transcription factors, thus demonstrating that robustness can facilitate evolvability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Payne, Joshua L -- Wagner, Andreas -- New York, N.Y. -- Science. 2014 Feb 21;343(6173):875-7. doi: 10.1126/science.1249046.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Zurich, Institute of Evolutionary Biology and Environmental Studies, Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24558158" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites/genetics ; Gene Regulatory Networks ; Mice ; Mutation ; Saccharomyces cerevisiae Proteins/chemistry ; Transcription Factors/*chemistry ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    HIV latency. Proliferation of cells with HIV integrated into cancer genes contributes to persistent infection (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-07-12
    Description: Antiretroviral treatment (ART) of HIV infection suppresses viral replication. Yet if ART is stopped, virus reemerges because of the persistence of infected cells. We evaluated the contribution of infected-cell proliferation and sites of proviral integration to HIV persistence. A total of 534 HIV integration sites (IS) and 63 adjacent HIV env sequences were derived from three study participants over 11.3 to 12.7 years of ART. Each participant had identical viral sequences integrated at the same position in multiple cells, demonstrating infected-cell proliferation. Integrations were overrepresented in genes associated with cancer and favored in 12 genes across multiple participants. Over time on ART, a greater proportion of persisting proviruses were in proliferating cells. HIV integration into specific genes may promote proliferation of HIV-infected cells, slowing viral decay during ART.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4230336/" 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/PMC4230336/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wagner, Thor A -- McLaughlin, Sherry -- Garg, Kavita -- Cheung, Charles Y K -- Larsen, Brendan B -- Styrchak, Sheila -- Huang, Hannah C -- Edlefsen, Paul T -- Mullins, James I -- Frenkel, Lisa M -- 201311CVI-322424-244686/Canadian Institutes of Health Research/Canada -- K23 AI077357/AI/NIAID NIH HHS/ -- K23AI077357/AI/NIAID NIH HHS/ -- P30 AI027757/AI/NIAID NIH HHS/ -- R01 AI091550/AI/NIAID NIH HHS/ -- R01 AI111806/AI/NIAID NIH HHS/ -- R01AI091550/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2014 Aug 1;345(6196):570-3. doi: 10.1126/science.1256304. Epub 2014 Jul 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Seattle Children's Research Institute, 1900 9th Avenue, Seattle, WA 98101, USA. University of Washington, Seattle, WA, USA. ; Fred Hutchinson Cancer Research Center, Seattle, WA, USA. ; University of Washington, Seattle, WA, USA. ; Seattle Children's Research Institute, 1900 9th Avenue, Seattle, WA 98101, USA. ; University of Washington, Seattle, WA, USA. Fred Hutchinson Cancer Research Center, Seattle, WA, USA. ; Seattle Children's Research Institute, 1900 9th Avenue, Seattle, WA 98101, USA. University of Washington, Seattle, WA, USA. lfrenkel@uw.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25011556" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-HIV Agents/therapeutic use ; Base Sequence ; Basic-Leucine Zipper Transcription Factors/genetics ; Cell Proliferation ; Chromosomes, Human, Pair 6/genetics ; *Genes, Neoplasm ; Genetic Loci ; HIV Infections/drug therapy/*virology ; HIV-1/genetics/*physiology ; Humans ; Jurkat Cells ; Molecular Sequence Data ; Phylogeny ; *Virus Integration ; *Virus Latency ; Virus Replication ; env Gene Products, Human Immunodeficiency Virus/classification/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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