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  • United States  (5,912)
  • Rats  (2,686)
  • Models, Molecular  (1,233)
  • ASTROPHYSICS
  • Cell & Developmental Biology
  • Inorganic Chemistry
  • American Association for the Advancement of Science (AAAS)  (9,757)
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  • 1
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    Enzymology. A moving story (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-02-23
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3907122/" 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/PMC3907122/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Falke, Joseph J -- R01 GM040731/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2002 Feb 22;295(5559):1480-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biophysics Program and the Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309, USA. falke@colorado.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11859184" target="_blank"〉PubMed〈/a〉
    Keywords: Arginine/chemistry ; Binding Sites ; Catalysis ; Cyclophilin A/*chemistry/*metabolism ; Hydrogen Bonding ; Models, Molecular ; Nitrogen/chemistry ; Nuclear Magnetic Resonance, Biomolecular ; Protein Binding ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Thermodynamics
    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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    Cancer. BRCA2 enters the fray (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-09-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, John H -- Elledge, Stephen J -- New York, N.Y. -- Science. 2002 Sep 13;297(5588):1822-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12228708" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; BRCA1 Protein/metabolism ; BRCA2 Protein/*chemistry/*metabolism ; Binding Sites ; Breast Neoplasms/genetics ; Crystallography, X-Ray ; DNA/*metabolism ; DNA Damage ; *DNA Repair ; DNA, Single-Stranded/metabolism ; DNA-Binding Proteins/metabolism ; Female ; Genes, BRCA1 ; Genes, BRCA2 ; Genetic Predisposition to Disease ; Humans ; Mice ; Ovarian Neoplasms/genetics ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Rad51 Recombinase ; Rats ; Recombination, Genetic ; Replication Protein A
    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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    Genetics. Please don't call it cloning! (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-02-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogelstein, Bert -- Alberts, Bruce -- Shine, Kenneth -- New York, N.Y. -- Science. 2002 Feb 15;295(5558):1237.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Kimmel Cancer Center at Johns Hopkins University, Baltimore, MD 21231, USA. vogelbe@welch.jhu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11847324" target="_blank"〉PubMed〈/a〉
    Keywords: Bioethical Issues ; Cell Line ; *Cloning, Organism/legislation & jurisprudence ; Embryo Research ; Embryo, Mammalian/*cytology ; Humans ; *Nuclear Transfer Techniques ; *Stem Cells ; *Terminology as Topic ; United States
    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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  • 4
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    Control of synaptic strength by glial TNFalpha (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-03-23
    Description: Activity-dependent modulation of synaptic efficacy in the brain contributes to neural circuit development and experience-dependent plasticity. Although glia are affected by activity and ensheathe synapses, their influence on synaptic strength has largely been ignored. Here, we show that a protein produced by glia, tumor necrosis factor alpha (TNFalpha), enhances synaptic efficacy by increasing surface expression of AMPA receptors. Preventing the actions of endogenous TNFalpha has the opposite effects. Thus, the continual presence of TNFalpha is required for preservation of synaptic strength at excitatory synapses. Through its effects on AMPA receptor trafficking, TNFalpha may play roles in synaptic plasticity and modulating responses to neural injury.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beattie, Eric C -- Stellwagen, David -- Morishita, Wade -- Bresnahan, Jacqueline C -- Ha, Byeong Keun -- Von Zastrow, Mark -- Beattie, Michael S -- Malenka, Robert C -- DA00439/DA/NIDA NIH HHS/ -- MH063394/MH/NIMH NIH HHS/ -- NS 31193/NS/NINDS NIH HHS/ -- NS38079/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2002 Mar 22;295(5563):2282-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nancy Pritzker Laboratory, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA 94304, USA. beattie.2@osu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11910117" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/pharmacology ; Astrocytes/*metabolism ; Cells, Cultured ; Culture Media, Conditioned/pharmacology ; Gene Expression Regulation/drug effects ; Hippocampus/cytology/metabolism ; Neuronal Plasticity/drug effects ; Neurons/drug effects/metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, AMPA/metabolism ; Receptors, Tumor Necrosis Factor ; Receptors, Tumor Necrosis Factor, Type I ; Synapses/drug effects/*metabolism ; Synaptic Transmission/drug effects ; Tumor Necrosis Factor-alpha/antagonists & inhibitors/*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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  • 5
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    Visualization and functional analysis of RNA-dependent RNA polymerase lattices (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-22
    Description: Positive-strand RNA viruses such as poliovirus replicate their genomes on intracellular membranes of their eukaryotic hosts. Electron microscopy has revealed that purified poliovirus RNA-dependent RNA polymerase forms planar and tubular oligomeric arrays. The structural integrity of these arrays correlates with cooperative RNA binding and RNA elongation and is sensitive to mutations that disrupt intermolecular contacts predicted by the polymerase structure. Membranous vesicles isolated from poliovirus-infected cells contain structures consistent with the presence of two-dimensional polymerase arrays on their surfaces during infection. Therefore, host cytoplasmic membranes may function as physical foundations for two-dimensional polymerase arrays, conferring the advantages of surface catalysis to viral RNA replication.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lyle, John M -- Bullitt, Esther -- Bienz, Kurt -- Kirkegaard, Karla -- AI-42119/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2002 Jun 21;296(5576):2218-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12077417" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Binding Sites ; Catalysis ; Crystallography, X-Ray ; HeLa Cells ; Humans ; Hydrogen-Ion Concentration ; Inclusion Bodies, Viral/metabolism/ultrastructure ; Microscopy, Electron ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Nucleic Acid Conformation ; Poliovirus/*enzymology/physiology ; Protein Conformation ; Protein Structure, Quaternary ; Protein Structure, Tertiary ; RNA Replicase/*chemistry/isolation & purification/*metabolism/ultrastructure ; RNA, Viral/biosynthesis/*metabolism ; Viral Core Proteins/metabolism ; Virus Replication
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Planetary science. NASA's new road to faster, cheaper, better exploration (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, Richard A -- New York, N.Y. -- Science. 2002 Nov 15;298(5597):1320-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12434031" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; *Planets ; Research Personnel ; Research Support as Topic ; Solar System ; Space Flight/*economics/*organization & administration/trends ; Spacecraft ; United States ; United States National Aeronautics and Space ; Administration/*economics/*organization & administration/trends
    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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  • 7
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    Patent law. Natural substances and patentable inventions (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Demaine, Linda J -- Fellmeth, Aaron X -- New York, N.Y. -- Science. 2003 May 30;300(5624):1375-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉RAND, Santa Monica, CA 90401, USA. demaine@rand.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12775825" target="_blank"〉PubMed〈/a〉
    Keywords: Aluminum Oxide ; Chemical Phenomena ; Chemistry ; Natural Science Disciplines ; Patents as Topic/*legislation & jurisprudence ; Plant Extracts ; Plant Roots ; Titanium ; United States
    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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  • 8
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    Smallpox research. World health body fires starting gun (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2002 May 24;296(5572):1383.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12029105" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Specimen Banks ; *Research ; Russia ; United States ; *Variola virus ; *World Health Organization
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Intellectual property. DuPont ups ante on use of Harvard's OncoMouse (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, Eliot -- New York, N.Y. -- Science. 2002 May 17;296(5571):1212.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12016275" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Disease Models, Animal ; Drug Industry/legislation & jurisprudence ; Drug Screening Assays, Antitumor ; Mice ; *Mice, Transgenic ; National Institutes of Health (U.S.)/legislation & jurisprudence ; *Neoplasms, Experimental ; *Patents as Topic ; United States ; Universities/legislation & jurisprudence
    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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  • 10
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    Risks of genetically engineered crops (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-09-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gurian-Sherman, Doug -- New York, N.Y. -- Science. 2003 Sep 26;301(5641):1845; author reply 1845.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14512604" target="_blank"〉PubMed〈/a〉
    Keywords: Crops, Agricultural/*genetics/standards ; Genetic Engineering ; Government Regulation ; Phenotype ; *Plants, Genetically Modified ; Risk Assessment ; United States ; *United States Department of Agriculture ; *United States Environmental Protection Agency
    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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  • 11
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    Loren Rieseberg profile. No garden-variety biologist (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, Kathryn -- New York, N.Y. -- Science. 2003 Nov 28;302(5650):1499.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14645825" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; *Biological Evolution ; Desert Climate ; Ecosystem ; Environment ; Genes, Plant ; Helianthus/*genetics/growth & development/physiology ; History, 20th Century ; History, 21st Century ; *Hybridization, Genetic ; Mutation ; Phenotype ; Sodium Chloride/pharmacology ; United States
    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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  • 12
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    Genetics. FDA races in wrong direction (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-07-26
    Description: Despite recent genetic evidence and the promise of individualized medicine, there is a continuing interest in using self-identified categories of race and ethnicity as variables in scientific and medical research. The U.S. Food and Drug Administration recently proposed a standardized approach for the collection of race and ethnicity data in clinical trials. We believe that this move fails to acknowledge new scientific data and recommend that relevant data from individuals be collected and used rather than broad group statistics. We also encourage that increased funding be committed to this important issue.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haga, Susanne B -- Venter, J Craig -- New York, N.Y. -- Science. 2003 Jul 25;301(5632):466.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for the Advancement of Genomics, Rockville, MD 20850, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12881555" target="_blank"〉PubMed〈/a〉
    Keywords: *Clinical Trials as Topic ; *Continental Population Groups/genetics ; *Ethnic Groups/genetics ; Gene Frequency ; Genetic Variation ; Guidelines as Topic ; Humans ; Pharmacogenetics ; United States ; *United States Food and Drug Administration
    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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  • 13
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    Environmental Protection Agency. Access to proposals triggers sharp debate (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Renner, Rebecca -- New York, N.Y. -- Science. 2003 Mar 7;299(5612):1501.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12624242" target="_blank"〉PubMed〈/a〉
    Keywords: *Access to Information ; Government Agencies ; *Intellectual Property ; National Institutes of Health (U.S.) ; Privacy ; Research Support as Topic ; United States ; *United States Environmental Protection Agency
    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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  • 14
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    Ethics. Revisiting a 1930s scandal, AACR to rename a prize (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-04-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Starr, Douglas -- New York, N.Y. -- Science. 2003 Apr 25;300(5619):573-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12714721" target="_blank"〉PubMed〈/a〉
    Keywords: *Awards and Prizes ; Ethics, Research/*history ; History, 20th Century ; *Neoplasms/history ; Prejudice ; Puerto Rico ; *Societies, Scientific ; United States
    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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  • 15
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    Homeland security. New agency contains strong science arm (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, David -- New York, N.Y. -- Science. 2002 Nov 22;298(5598):1534.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12446877" target="_blank"〉PubMed〈/a〉
    Keywords: *Bioterrorism ; Financing, Government ; Government Agencies/economics/legislation & jurisprudence/*organization & ; administration ; National Institutes of Health (U.S.) ; Research/*organization & administration ; Research Support as Topic ; Security Measures/economics/legislation & jurisprudence/*organization & ; administration ; United States
    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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  • 16
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    Historical essay. The early years of HIV/AIDS (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-12-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallo, Robert C -- New York, N.Y. -- Science. 2002 Nov 29;298(5599):1728-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Human Virology and Department of Microbiology and Immunology, University of Maryland, Baltimore, MD 21201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12459576" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Serodiagnosis/history ; Acquired Immunodeficiency Syndrome/diagnosis/*history/immunology/virology ; CD4-Positive T-Lymphocytes/virology ; Cell Line ; Cells, Cultured ; France ; *HIV/classification/isolation & purification/physiology ; History, 20th Century ; Human T-lymphotropic virus 1/isolation & purification/physiology ; Human T-lymphotropic virus 2/isolation & purification/physiology ; Humans ; Interleukin-2/history/isolation & purification/physiology ; Patents as Topic/history ; RNA-Directed DNA Polymerase/history/isolation & purification/metabolism ; United States ; Virus Cultivation
    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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  • 17
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    Research fraud, public policy, and gun control (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-06-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lott, John R Jr -- New York, N.Y. -- Science. 2003 Jun 6;300(5625):1505; author reply 1505.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12791965" target="_blank"〉PubMed〈/a〉
    Keywords: Crime/statistics & numerical data ; *Firearms/legislation & jurisprudence ; *Public Policy ; Publishing ; Research/*standards ; Scientific Misconduct ; United States
    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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  • 18
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    AIDS and Africa: still a sad story (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kennedy, Donald -- New York, N.Y. -- Science. 2003 May 16;300(5622):1053.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12750481" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*economics/epidemiology/prevention & ; control/transmission ; Africa/epidemiology ; Disease Outbreaks/economics ; Financing, Government ; Health Care Costs ; Humans ; Infectious Disease Transmission, Vertical/prevention & control ; South Africa/epidemiology ; United States
    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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  • 19
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    Crystal structure of the GpIbalpha-thrombin complex essential for platelet aggregation (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-07-12
    Description: Direct interaction between platelet receptor glycoprotein Ibalpha (GpIbalpha) and thrombin is required for platelet aggregation and activation at sites of vascular injury. Abnormal GpIbalpha-thrombin binding is associated with many pathological conditions,including occlusive arterial thrombosis and bleeding disorders. The crystal structure of the GpIbalpha-thrombin complex at 2.6 angstrom resolution reveals simultaneous interactions of GpIbalpha with exosite I of one thrombin molecule,and with exosite II of a second thrombin molecule. In the crystal lattice,the periodic arrangement of GpIbalpha-thrombin complexes mirrors a scaffold that could serve as a driving force for tight platelet adhesion. The details of these interactions reconcile GpIbalpha-thrombin binding modes that are presently controversial,highlighting two distinct interfaces that are potential targets for development of novel antithrombotic drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dumas, John J -- Kumar, Ravindra -- Seehra, Jasbir -- Somers, William S -- Mosyak, Lidia -- New York, N.Y. -- Science. 2003 Jul 11;301(5630):222-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical and Screening Sciences, Wyeth, 200 Cambridge Park Drive, Cambridge, MA 02140, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12855811" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Blood Platelets/chemistry/physiology ; Crystallization ; Crystallography, X-Ray ; Humans ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Models, Molecular ; Platelet Adhesiveness ; *Platelet Aggregation ; Platelet Glycoprotein GPIb-IX Complex/*chemistry/*metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Thrombin/*chemistry/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    An uncertain partnership (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-11-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mulcahy, R Timothy -- New York, N.Y. -- Science. 2003 Nov 7;302(5647):949.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14605331" target="_blank"〉PubMed〈/a〉
    Keywords: Biomedical Research/*legislation & jurisprudence ; Bioterrorism/*legislation & jurisprudence/prevention & control ; *Government Regulation ; *Security Measures ; United States ; *Universities
    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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    Calculating the benefits of regulation (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roelofs, Cora R -- Ellenbecker, Michael J -- New York, N.Y. -- Science. 2003 May 30;300(5624):1372.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12775824" target="_blank"〉PubMed〈/a〉
    Keywords: Cost-Benefit Analysis ; Environmental Health ; *Government Regulation ; *Health ; Humans ; Safety ; United States ; *United States Occupational Safety and Health Administration ; *Value of Life
    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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  • 22
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    Closing of the nucleotide pocket of kinesin-family motors upon binding to microtubules (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-06
    Description: We have used adenosine diphosphate analogs containing electron paramagnetic resonance (EPR) spin moieties and EPR spectroscopy to show that the nucleotide-binding site of kinesin-family motors closes when the motor.diphosphate complex binds to microtubules. Structural analyses demonstrate that a domain movement in the switch 1 region at the nucleotide site, homologous to domain movements in the switch 1 region in the G proteins [heterotrimeric guanine nucleotide-binding proteins], explains the EPR data. The switch movement primes the motor both for the free energy-yielding nucleotide hydrolysis reaction and for subsequent conformational changes that are crucial for the generation of force and directed motion along the microtubule.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Naber, Nariman -- Minehardt, Todd J -- Rice, Sarah -- Chen, Xiaoru -- Grammer, Jean -- Matuska, Marija -- Vale, Ronald D -- Kollman, Peter A -- Car, Roberto -- Yount, Ralph G -- Cooke, Roger -- Pate, Edward -- AR39643/AR/NIAMS NIH HHS/ -- AR42895/AR/NIAMS NIH HHS/ -- DK05915/DK/NIDDK NIH HHS/ -- GM29072/GM/NIGMS NIH HHS/ -- RR1081/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2003 May 2;300(5620):798-801.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of California, San Francisco, CA 94143, USA. naber@itsa.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12730601" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine Nucleotides/*metabolism ; Adenosine Diphosphate/analogs & derivatives/metabolism ; Adenosine Triphosphate/analogs & derivatives/metabolism ; Animals ; Binding Sites ; Computer Simulation ; Crystallography, X-Ray ; *Drosophila Proteins ; Drosophila melanogaster ; Electron Spin Resonance Spectroscopy ; Humans ; Hydrogen Bonding ; Hydrolysis ; Kinesin/*chemistry/*metabolism ; Microtubules/*metabolism ; Models, Molecular ; Molecular Motor Proteins/*chemistry/*metabolism ; Molecular Probes/metabolism ; Protein Conformation ; Spin Labels
    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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    Structural biology. Complex II is complex too (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-02-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hederstedt, Lars -- New York, N.Y. -- Science. 2003 Jan 31;299(5607):671-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Organism Biology, Lund University, SE-22362 Lund, Sweden. lars.hederstedt@cob.lu.se〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12560540" target="_blank"〉PubMed〈/a〉
    Keywords: Aerobiosis ; Anaerobiosis ; Binding Sites ; Crystallography, X-Ray ; Electron Transport ; Electron Transport Complex II ; Escherichia coli/*enzymology ; Flavin-Adenine Dinucleotide/metabolism ; Heme/chemistry/metabolism ; Models, Molecular ; Multienzyme Complexes/antagonists & inhibitors/*chemistry/*metabolism ; Oxidation-Reduction ; Oxidoreductases/antagonists & inhibitors/*chemistry/*metabolism ; Protein Conformation ; Protein Structure, Tertiary ; Protein Subunits/chemistry ; Reactive Oxygen Species/metabolism ; Succinate Dehydrogenase/antagonists & inhibitors/*chemistry/*metabolism ; Succinic Acid/metabolism ; Ubiquinone/chemistry/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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    Tracking children's health to age 21 (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-11-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Edwards, E Stephen -- Green, Nancy -- Henry, Carol J -- Landrigan, Philip J -- Swartz, Daniel -- New York, N.Y. -- Science. 2003 Oct 31;302(5646):781.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14593148" target="_blank"〉PubMed〈/a〉
    Keywords: *Child ; *Child Development ; Costs and Cost Analysis ; *Disease ; *Epidemiologic Studies ; *Health ; Humans ; Social Environment ; United States
    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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    Amersham Prize. 2002 grand prize winner (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-10-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2003 Oct 24;302(5645):585.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14576414" target="_blank"〉PubMed〈/a〉
    Keywords: *Awards and Prizes ; China ; History, 20th Century ; History, 21st Century ; *Molecular Biology/history ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Revisiting nuclear power plant safety (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-01-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lyman, Edwin S -- New York, N.Y. -- Science. 2003 Jan 10;299(5604):201-3; author reply 201-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12523360" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Neoplasms, Radiation-Induced/epidemiology/etiology ; Nuclear Energy ; Nuclear Reactors ; *Power Plants ; Radioactive Hazard Release ; *Safety ; Security Measures ; *Terrorism ; Thyroid Neoplasms/epidemiology/etiology ; Ukraine/epidemiology ; United States
    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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    The ironic politics of obesity (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-02-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nestle, Marion -- New York, N.Y. -- Science. 2003 Feb 7;299(5608):781.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12574583" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Child ; *Diet ; *Food Industry ; Humans ; Marketing ; *Nutrition Policy ; Nutritional Physiological Phenomena ; *Obesity/epidemiology/prevention & control ; Politics ; United States ; *United States Department of Agriculture
    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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    Graduate students' views on unionization (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-01-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Castellanos, Mariajose -- Holland-Minkley, Amanda M -- MacKenzie, Allen B -- McNeil, Anne J -- Toomey, David -- New York, N.Y. -- Science. 2003 Jan 17;299(5605):345-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12532977" target="_blank"〉PubMed〈/a〉
    Keywords: *Education, Graduate ; *Labor Unions ; New York ; United States ; *Universities
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    How would a Cable Science Network work? (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-10-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nitabach, Michael N -- New York, N.Y. -- Science. 2003 Oct 3;302(5642):53-5; author reply 53-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14526059" target="_blank"〉PubMed〈/a〉
    Keywords: *Access to Information ; Editorial Policies ; Science/*education ; *Television ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Information science. Going, going, gone: lost Internet references (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-11-01
    Description: The use of Internet references in academic literature is common, and Internet references are frequently inaccessible. The extent of Internet referencing and Internet reference activity in medical or scientific publications was systematically examined in more than 1000 articles published between 2000 and 2003 in the New England Journal of Medicine, The Journal of the American Medical Association, and Science. Internet references accounted for 2.6% of all references (672/25548) and in articles 27 months old, 13% of Internet references were inactive. Publishers, librarians, and readers need to reassess policies, archiving systems, and other resources for addressing Internet reference attrition to prevent further information loss.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dellavalle, Robert P -- Hester, Eric J -- Heilig, Lauren F -- Drake, Amanda L -- Kuntzman, Jeff W -- Graber, Marla -- Schilling, Lisa M -- K-07 CA92550/CA/NCI NIH HHS/ -- R25 CA49981/CA/NCI NIH HHS/ -- T32 AR07411/AR/NIAMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Oct 31;302(5646):787-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Veterans Affairs Medical Center, Denver, CO 80220, USA. robert.dellavalle@uchsc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14593153" target="_blank"〉PubMed〈/a〉
    Keywords: *Information Storage and Retrieval ; *Internet ; *Periodicals as Topic ; *Publishing ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Infectious diseases. Searching for a SARS agenda (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-06-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, Martin -- New York, N.Y. -- Science. 2003 Jun 6;300(5625):1487-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12791953" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biomedical Research ; Communicable Diseases, Emerging/diagnosis/prevention & control/transmission ; Disease Outbreaks ; Disease Reservoirs ; Humans ; National Institutes of Health (U.S.) ; Research Support as Topic ; SARS Virus/immunology ; *Severe Acute Respiratory Syndrome/diagnosis/epidemiology/prevention & ; control/transmission ; United States ; Viral Vaccines/economics
    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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    Bio2010 misinterpreted? (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alberts, Bruce -- New York, N.Y. -- Science. 2003 Nov 28;302(5650):1504.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14645827" target="_blank"〉PubMed〈/a〉
    Keywords: Advisory Committees ; Biological Science Disciplines/*education ; *Biomedical Research ; Career Choice ; *Curriculum ; National Academy of Sciences (U.S.) ; Teaching ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Structural basis of multiple drug-binding capacity of the AcrB multidrug efflux pump (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-10
    Description: Multidrug efflux pumps cause serious problems in cancer chemotherapy and treatment of bacterial infections. Yet high-resolution structures of ligand transporter complexes have previously been unavailable. We obtained x-ray crystallographic structures of the trimeric AcrB pump from Escherichia coli with four structurally diverse ligands. The structures show that three molecules of ligands bind simultaneously to the extremely large central cavity of 5000 cubic angstroms, primarily by hydrophobic, aromatic stacking and van der Waals interactions. Each ligand uses a slightly different subset of AcrB residues for binding. The bound ligand molecules often interact with each other, stabilizing the binding.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yu, Edward W -- McDermott, Gerry -- Zgurskaya, Helen I -- Nikaido, Hiroshi -- Koshland, Daniel E Jr -- AI 09644/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2003 May 9;300(5621):976-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720-3202, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12738864" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-Infective Agents/chemistry/metabolism ; Anti-Infective Agents, Local/chemistry/metabolism ; Binding Sites ; Carrier Proteins/*chemistry/isolation & purification/*metabolism ; Cell Membrane/chemistry ; Chemistry, Physical ; Ciprofloxacin/chemistry/metabolism ; Crystallization ; Crystallography, X-Ray ; Dequalinium/chemistry/metabolism ; Escherichia coli Proteins/*chemistry/isolation & purification/*metabolism ; Ethidium/chemistry/metabolism ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Ligands ; Membrane Proteins/*chemistry/isolation & purification/*metabolism ; Models, Molecular ; Multidrug Resistance-Associated Proteins ; Physicochemical Phenomena ; Protein Binding ; Protein Conformation ; Protein Structure, Quaternary ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Rhodamines/chemistry/metabolism ; Static Electricity
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    Thomas Monath profile. Riding the biodefense wave (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-08-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, Martin -- New York, N.Y. -- Science. 2003 Aug 15;301(5635):912-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12920279" target="_blank"〉PubMed〈/a〉
    Keywords: Biological Warfare ; *Biotechnology/economics/history ; History, 20th Century ; History, 21st Century ; Humans ; Security Measures ; *Smallpox Vaccine/economics ; United States ; *Viral Vaccines/economics
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    Facilitation of spinal NMDA receptor currents by spillover of synaptically released glycine (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-06-28
    Description: In the mammalian CNS, N-methyl-D-aspartate (NMDA) receptors serve prominent roles in many physiological and pathophysiological processes including pain transmission. For full activation, NMDA receptors require the binding of glycine. It is not known whether the brain uses changes in extracellular glycine to modulate synaptic NMDA responses. Here, we show that synaptically released glycine facilitates NMDA receptor currents in the superficial dorsal horn, an area critically involved in pain processing. During high presynaptic activity, glycine released from inhibitory interneurons escapes the synaptic cleft and reaches nearby NMDA receptors by so-called spillover. In vivo, this process may contribute to the development of inflammatory hyperalgesia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ahmadi, Seifollah -- Muth-Selbach, Uta -- Lauterbach, Andreas -- Lipfert, Peter -- Neuhuber, Winfried L -- Zeilhofer, Hanns Ulrich -- New York, N.Y. -- Science. 2003 Jun 27;300(5628):2094-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Experimentelle und Klinische Pharmakologie und Toxikologie, Universitat Erlangen-Nurnberg, Fahrstrasse 17, D-91054 Erlangen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12829784" target="_blank"〉PubMed〈/a〉
    Keywords: Analgesics/pharmacology ; Animals ; Anterior Horn Cells/drug effects/metabolism ; Diffusion ; Electric Stimulation ; Evoked Potentials/drug effects ; Excitatory Postsynaptic Potentials/drug effects ; Glycine/*metabolism/pharmacology ; In Vitro Techniques ; Interneurons/metabolism ; Neural Inhibition/drug effects ; Opioid Peptides/pharmacology ; Pain Measurement ; Patch-Clamp Techniques ; Posterior Horn Cells/drug effects/*metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/*metabolism ; Serine/pharmacology ; Spinal Cord/drug effects/metabolism ; Synapses/*metabolism ; *Synaptic Transmission/drug effects ; Temperature
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    Ecology. 'Tragedy of the commons' author dies (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-10-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2003 Oct 3;302(5642):32.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14526046" target="_blank"〉PubMed〈/a〉
    Keywords: Ecology ; Environment ; History, 20th Century ; History, 21st Century ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Bioweapons. Plague researcher recants account about fate of vials (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-10-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, David -- New York, N.Y. -- Science. 2003 Oct 24;302(5645):543.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14576385" target="_blank"〉PubMed〈/a〉
    Keywords: *Bioterrorism ; *Crime ; Law Enforcement ; Plague/microbiology ; *Research Personnel ; Security Measures ; Specimen Handling ; Texas ; United States ; United States Government Agencies ; Universities ; *Yersinia pestis
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    Radiation science. Sparks fly over new report on Hiroshima bomb radiation (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-08-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, Dennis -- New York, N.Y. -- Science. 2003 Aug 8;301(5634):742.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12907763" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; *International Cooperation ; Japan ; *Neutrons ; Nickel ; *Nuclear Warfare ; *Publishing ; Radiation Dosage ; Radioisotopes ; Radiometry ; United States
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    Derepression of BDNF transcription involves calcium-dependent phosphorylation of MeCP2 (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-11-01
    Description: Mutations in MeCP2, which encodes a protein that has been proposed to function as a global transcriptional repressor, are the cause of Rett syndrome (RT T), an X-linked progressive neurological disorder. Although the selective inactivation of MeCP2 in neurons is sufficient to confer a Rett-like phenotype in mice, the specific functions of MeCP2 in postmitotic neurons are not known. We find that MeCP2 binds selectively to BDNF promoter III and functions to repress expression of the BDNF gene. Membrane depolarization triggers the calcium-dependent phosphorylation and release of MeCP2 from BDNF promoter III, thereby facilitating transcription. These studies indicate that MeCP2 plays a key role in the control of neuronal activity-dependent gene regulation and suggest that the deregulation of this process may underlie the pathology of RT T.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Wen G -- Chang, Qiang -- Lin, Yingxi -- Meissner, Alexander -- West, Anne E -- Griffith, Eric C -- Jaenisch, Rudolf -- Greenberg, Michael E -- HD 18655/HD/NICHD NIH HHS/ -- NS28829/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Oct 31;302(5646):885-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neuroscience, Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14593183" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain-Derived Neurotrophic Factor/*genetics ; Calcium/*metabolism ; Cell Membrane/physiology ; Cells, Cultured ; *Chromosomal Proteins, Non-Histone ; Cloning, Molecular ; CpG Islands ; DNA Methylation ; DNA-Binding Proteins/*metabolism ; Electrophoretic Mobility Shift Assay ; *Gene Expression Regulation ; Gene Silencing ; Histones/metabolism ; Methyl-CpG-Binding Protein 2 ; Methylation ; Mice ; Mice, Knockout ; Neurons/metabolism/physiology ; Phosphorylation ; Potassium Chloride/pharmacology ; Precipitin Tests ; Promoter Regions, Genetic ; Rats ; *Repressor Proteins ; Rett Syndrome/genetics ; *Transcription, Genetic
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    Biosafety labs. The war on bioterror moves west (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-02-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, Martin -- New York, N.Y. -- Science. 2003 Feb 7;299(5608):814.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12574601" target="_blank"〉PubMed〈/a〉
    Keywords: *Bioterrorism ; *Containment of Biohazards ; *Laboratories/manpower ; Montana ; *National Institutes of Health (U.S.) ; Research Personnel ; United States ; *Viruses
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    Infectious diseases. Up close and personal with SARS (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, Dennis -- New York, N.Y. -- Science. 2003 May 9;300(5621):886-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12738826" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Centers for Disease Control and Prevention (U.S.) ; Communicable Diseases, Emerging/epidemiology/*virology ; *Disease Outbreaks ; History, 21st Century ; Hong Kong/epidemiology ; Humans ; Influenza A virus/pathogenicity ; Influenza, Human/epidemiology/transmission/virology ; SARS Virus/*classification/*isolation & purification/pathogenicity/ultrastructure ; Severe Acute Respiratory Syndrome/epidemiology/*virology ; Sri Lanka ; United States ; Universities ; World Health Organization
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    Clinical trials. Ventilator study gets second wind (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-07-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, David -- New York, N.Y. -- Science. 2003 Jul 11;301(5630):149.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12855776" target="_blank"〉PubMed〈/a〉
    Keywords: Clinical Protocols/standards ; Clinical Trials as Topic/*standards ; Ethics Committees, Research ; Humans ; Informed Consent ; Multicenter Studies as Topic/standards ; National Institutes of Health (U.S.) ; Research Design/standards ; Respiration, Artificial/*methods ; Respiratory Distress Syndrome, Adult/*therapy ; United States ; Ventilators, Mechanical
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    Bioterrorism. New look at old data irks smallpox-eradication experts (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-01-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, Martin -- New York, N.Y. -- Science. 2003 Jan 10;299(5604):181.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12522221" target="_blank"〉PubMed〈/a〉
    Keywords: *Bioterrorism ; Disease Outbreaks/prevention & control ; Humans ; *Immunization Programs ; Incidence ; Mass Vaccination ; Smallpox/epidemiology/*prevention & control ; *Smallpox Vaccine ; United States ; *Vaccination
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    Biosafety labs. The architect behind the new fortresses of science (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-02-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, Martin -- New York, N.Y. -- Science. 2003 Feb 7;299(5608):812-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12574599" target="_blank"〉PubMed〈/a〉
    Keywords: Canada ; *Containment of Biohazards ; *Environment, Controlled ; *Facility Design and Construction/economics ; *Laboratories ; United States
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    Scientific community. The trials of Thomas Butler (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-12-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, Martin -- Malakoff, David -- New York, N.Y. -- Science. 2003 Dec 19;302(5653):2054-63.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14684799" target="_blank"〉PubMed〈/a〉
    Keywords: *Bioterrorism ; Clinical Trials as Topic/*economics/standards ; Contracts ; *Fraud ; History, 21st Century ; Humans ; *Jurisprudence ; Law Enforcement ; Plague/drug therapy ; Security Measures ; Sepsis/drug therapy ; Specimen Handling/standards ; Tanzania ; Texas ; United States ; United States Government Agencies ; Universities ; *Yersinia pestis
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    Experience strengthening transmission by driving AMPA receptors into synapses (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-08
    Description: The mechanisms underlying experience-dependent plasticity in the brain may depend on the AMPA subclass of glutamate receptors (AMPA-Rs). We examined the trafficking of AMPA-Rs into synapses in the developing rat barrel cortex. In vivo gene delivery was combined with in vitro recordings to show that experience drives recombinant GluR1, an AMPA-R subunit, into synapses formed between layer 4 and layer 2/3 neurons. Moreover, expression of the GluR1 cytoplasmic tail, a construct that inhibits synaptic delivery of endogenous AMPA-Rs during long-term potentiation, blocked experience-driven synaptic potentiation. In general, synaptic incorporation of AMPA-Rs in vivo conforms to rules identified in vitro and contributes to plasticity driven by natural stimuli in the mammalian brain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takahashi, Takuya -- Svoboda, Karel -- Malinow, Roberto -- NS032827/NS/NINDS NIH HHS/ -- NS038259/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Mar 7;299(5612):1585-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Jones Laboratory, 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/12624270" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Electrophysiology ; Gene Transfer Techniques ; Long-Term Potentiation ; *Neuronal Plasticity ; Neurons/*metabolism/virology ; Patch-Clamp Techniques ; Rats ; Receptors, AMPA/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Sindbis Virus/genetics ; Somatosensory Cortex/*metabolism/virology ; Synapses/*metabolism ; *Synaptic Transmission ; Touch ; Vibrissae/physiology
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    Homeland security. New science chief wants ready-made technologies (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-04-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, David -- New York, N.Y. -- Science. 2003 Apr 18;300(5618):406.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12702848" target="_blank"〉PubMed〈/a〉
    Keywords: *Bioterrorism/prevention & control ; Budgets ; Federal Government ; Government Agencies/economics/*organization & administration ; Research ; *Security Measures ; *Terrorism/prevention & control ; United States ; Universities
    Print ISSN: 0036-8075
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    Scientific misconduct. The multiple repercussions of a fudged grant application (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-04-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, David -- New York, N.Y. -- Science. 2003 Apr 4;300(5616):40.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12677036" target="_blank"〉PubMed〈/a〉
    Keywords: Academic Medical Centers/*legislation & jurisprudence/organization & ; administration ; Animals ; Connecticut ; Financing, Government ; Jurisprudence ; *Research Support as Topic ; Scientific Misconduct ; Ticks/*immunology ; United States ; United States Office of Research Integrity ; *Vaccines
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    Intellectual property. Judge turns Rochester's golden patent into lead (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, David -- New York, N.Y. -- Science. 2003 Mar 14;299(5613):1638-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12637705" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-Inflammatory Agents, Non-Steroidal ; Celecoxib ; Cloning, Molecular ; Cyclooxygenase 2 ; Cyclooxygenase 2 Inhibitors ; *Cyclooxygenase Inhibitors ; Drug Industry/*legislation & jurisprudence ; Isoenzymes/*antagonists & inhibitors/*genetics ; New York ; Patents as Topic/*legislation & jurisprudence ; Prostaglandin-Endoperoxide Synthases/*genetics ; Pyrazoles ; Sulfonamides ; United States ; Universities/*legislation & jurisprudence
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    Structural basis for a Ca2+-sensing function of the metabotropic glutamate receptors (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-28
    Description: The metabotropic glutamate receptors (mGluRs) are widely distributed in the brain and play important roles in synaptic plasticity. Here it is shown that some types of mGluRs are activated not only by glutamate but also by extracellular Ca2+ (Ca2+o). A single amino acid residue was found to determine the sensitivity of mGluRs to Ca2+o. One of the receptors, mGluR1alpha, but not its point mutant with reduced sensitivity to Ca2+o, caused morphological changes when transfected into mammalian cells. Thus, the sensing of Ca2+o by mGluRs may be important in cells under physiological condition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kubo, Y -- Miyashita, T -- Murata, Y -- New York, N.Y. -- Science. 1998 Mar 13;279(5357):1722-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurophysiology, Tokyo Metropolitan Institute for Neuroscience, Musashidai 2-6, Fuchu, Tokyo 183-8526, Japan. ykubo@tmin.ac.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9497291" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/ultrastructure ; Amino Acid Sequence ; Animals ; Binding Sites ; Brain/metabolism ; CHO Cells ; Calcium/*metabolism/pharmacology ; Cell Size ; Cricetinae ; Cyclic AMP/metabolism ; G Protein-Coupled Inwardly-Rectifying Potassium Channels ; Glutamic Acid/metabolism/pharmacology ; Molecular Sequence Data ; Oocytes ; Point Mutation ; Potassium Channels/metabolism ; *Potassium Channels, Inwardly Rectifying ; Rats ; Receptors, Metabotropic Glutamate/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Second Messenger Systems ; Transfection ; Xenopus laevis
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    Structural basis of plasticity in T cell receptor recognition of a self peptide-MHC antigen (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: The T cell receptor (TCR) inherently has dual specificity. T cells must recognize self-antigens in the thymus during maturation and then discriminate between foreign pathogens in the periphery. A molecular basis for this cross-reactivity is elucidated by the crystal structure of the alloreactive 2C TCR bound to self peptide-major histocompatibility complex (pMHC) antigen H-2Kb-dEV8 refined against anisotropic 3.0 angstrom resolution x-ray data. The interface between peptide and TCR exhibits extremely poor shape complementarity, and the TCR beta chain complementarity-determining region 3 (CDR3) has minimal interaction with the dEV8 peptide. Large conformational changes in three of the TCR CDR loops are induced upon binding, providing a mechanism of structural plasticity to accommodate a variety of different peptide antigens. Extensive TCR interaction with the pMHC alpha helices suggests a generalized orientation that is mediated by the Valpha domain of the TCR and rationalizes how TCRs can effectively "scan" different peptides bound within a large, low-affinity MHC structural framework for those that provide the slight additional kinetic stabilization required for signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garcia, K C -- Degano, M -- Pease, L R -- Huang, M -- Peterson, P A -- Teyton, L -- Wilson, I A -- AI42266/AI/NIAID NIH HHS/ -- AI42267/AI/NIAID NIH HHS/ -- R01 CA58896/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Feb 20;279(5354):1166-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and the Skaggs Institute of Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9469799" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Crystallization ; Crystallography, X-Ray ; H-2 Antigens/*chemistry/*immunology/metabolism ; Ligands ; Mice ; Mice, Transgenic ; Models, Molecular ; Mutation ; Oligopeptides/*chemistry/immunology/metabolism ; Protein Conformation ; Protein Structure, Secondary ; Receptors, Antigen, T-Cell, alpha-beta/*chemistry/*immunology/metabolism ; Recombinant Proteins
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    Role of phosphorylation in regulation of the assembly of endocytic coat complexes (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-07
    Description: Clathrin-mediated endocytosis involves cycles of assembly and disassembly of clathrin coat components and their accessory proteins. Dephosphorylation of rat brain extract was shown to promote the assembly of dynamin 1, synaptojanin 1, and amphiphysin into complexes that also included clathrin and AP-2. Phosphorylation of dynamin 1 and synaptojanin 1 inhibited their binding to amphiphysin, whereas phosphorylation of amphiphysin inhibited its binding to AP-2 and clathrin. Thus, phosphorylation regulates the association and dissociation cycle of the clathrin-based endocytic machinery, and calcium-dependent dephosphorylation of endocytic proteins could prepare nerve terminals for a burst of endocytosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Slepnev, V I -- Ochoa, G C -- Butler, M H -- Grabs, D -- De Camilli, P -- CA46128/CA/NCI NIH HHS/ -- NS36251/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 7;281(5378):821-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Cell Biology, Yale University School of Medicine, 295 Congress Avenue, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9694653" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Protein Complex alpha Subunits ; Adaptor Protein Complex beta Subunits ; Adaptor Proteins, Vesicular Transport ; Adenosine Triphosphate/metabolism ; Animals ; Binding Sites ; Carbazoles/pharmacology ; Chromatography, Affinity ; Clathrin/*metabolism ; Cyclosporine/pharmacology ; Dimerization ; Dynamin I ; Dynamins ; *Endocytosis ; Enzyme Inhibitors/pharmacology ; GTP Phosphohydrolases/*metabolism ; Indole Alkaloids ; Membrane Proteins/*metabolism ; Nerve Tissue Proteins/*metabolism ; Phosphoric Monoester Hydrolases/*metabolism ; Rats ; Recombinant Fusion Proteins/metabolism ; src Homology Domains
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    Cholinergic switching within neocortical inhibitory networks (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-14
    Description: Differential actions of acetylcholine on the excitability of two subtypes of interneurons in layer V of the rat visual cortex were examined. Acetylcholine excited low-threshold spike (LTS) cells through nicotinic receptors, whereas it elicited hyperpolarization in fast spiking (FS) cells through muscarinic receptors. Axons of LTS cells were mainly distributed vertically to upper layers, and those of FS cells were primarily confined to layer V. Thus, cortical cholinergic activation may reduce some forms of intralaminar inhibition, promote intracolumnar inhibition, and change the direction of information flow within cortical circuits.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xiang, Z -- Huguenard, J R -- Prince, D A -- NS 06477/NS/NINDS NIH HHS/ -- NS 07280/NS/NINDS NIH HHS/ -- NS 12151/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1998 Aug 14;281(5379):985-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology and Neurological Sciences, Stanford University Medical Center, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9703513" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholine/*physiology ; Animals ; Hexamethonium/pharmacology ; In Vitro Techniques ; Interneurons/physiology ; Membrane Potentials ; Muscarinic Antagonists/pharmacology ; Nerve Net/*physiology ; *Neural Inhibition ; Nicotinic Antagonists/pharmacology ; Patch-Clamp Techniques ; Rats ; Rats, Sprague-Dawley ; Receptors, Nicotinic/physiology ; Scopolamine Hydrobromide/pharmacology ; Visual Cortex/cytology/*physiology
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    New potential for human embryonic stem cells (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gearhart, J -- New York, N.Y. -- Science. 1998 Nov 6;282(5391):1061-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Gynecology and Obstetrics, Johns Hopkins Medicine, Baltimore, MD 21287, USA. gearhart@jhmi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841453" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst/*cytology ; *Cell Culture Techniques ; Cell Differentiation ; *Cell Line ; Cell Lineage ; *Embryo Research ; Embryo, Mammalian/*cytology ; Federal Government ; Germ Cells/*cytology ; Government Regulation ; Guidelines as Topic ; Humans ; Major Histocompatibility Complex ; Mice ; Research Support as Topic ; Risk Assessment ; Stem Cell Transplantation ; Stem Cells/*cytology ; Transplantation Immunology ; United States
    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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    Lead regulation (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldman, L R -- New York, N.Y. -- Science. 1998 Dec 4;282(5395):1825-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9874633" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; Environmental Exposure ; Environmental Pollutants/adverse effects ; Government Agencies ; Humans ; Lead/adverse effects ; Lead Poisoning/*prevention & control ; United States ; United States Environmental Protection Agency
    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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    Structure of the Escherichia coli RNA polymerase alpha subunit amino-terminal domain (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-07-10
    Description: The 2.5 angstrom resolution x-ray crystal structure of the Escherichia coli RNA polymerase (RNAP) alpha subunit amino-terminal domain (alphaNTD), which is necessary and sufficient to dimerize and assemble the other RNAP subunits into a transcriptionally active enzyme and contains all of the sequence elements conserved among eukaryotic alpha homologs, has been determined. The alphaNTD monomer comprises two distinct, flexibly linked domains, only one of which participates in the dimer interface. In the alphaNTD dimer, a pair of helices from one monomer interact with the cognate helices of the other to form an extensive hydrophobic core. All of the determinants for interactions with the other RNAP subunits lie on one face of the alphaNTD dimer. Sequence alignments, combined with secondary-structure predictions, support proposals that a heterodimer of the eukaryotic RNAP subunits related to Saccharomyces cerevisiae Rpb3 and Rpb11 plays the role of the alphaNTD dimer in prokaryotic RNAP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, G -- Darst, S A -- GM19441-01/GM/NIGMS NIH HHS/ -- GM53759/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Jul 10;281(5374):262-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rockefeller University, 1230 York Avenue, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9657722" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Crystallography, X-Ray ; DNA-Directed RNA Polymerases/*chemistry ; Dimerization ; Escherichia coli/*enzymology ; Models, Molecular ; Molecular Sequence Data ; *Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; RNA Polymerase II/chemistry ; *Saccharomyces cerevisiae Proteins ; Sequence Alignment
    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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    Methylmercury risks (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldman, L R -- Farland, W H -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):640-1; author reply 641.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9471723" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Fishes ; *Food Contamination ; Humans ; Maximum Allowable Concentration ; Methylmercury Compounds/*adverse effects ; *Nutrition Policy ; Risk Assessment ; United States ; United States Environmental Protection Agency
    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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    Freedom of information requests (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gough, M -- New York, N.Y. -- Science. 1998 Dec 4;282(5395):1823.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9874631" target="_blank"〉PubMed〈/a〉
    Keywords: 2,4,5-Trichlorophenoxyacetic Acid/adverse effects ; 2,4-Dichlorophenoxyacetic Acid/adverse effects ; Confidentiality/*legislation & jurisprudence ; Defoliants, Chemical ; Financing, Government ; Humans ; *Public Policy ; Research/*legislation & jurisprudence ; *Research Support as Topic ; Tetrachlorodibenzodioxin/adverse effects ; United States
    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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    Outcomes research: measuring the end results of health care (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clancy, C M -- Eisenberg, J M -- New York, N.Y. -- Science. 1998 Oct 9;282(5387):245-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Outcomes and Effectiveness Research, U.S. Department of Health and Human Services, Rockville, MD 20852, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841388" target="_blank"〉PubMed〈/a〉
    Keywords: Activities of Daily Living ; Health Status ; Humans ; *Outcome Assessment (Health Care)/trends ; Patient Satisfaction ; Quality of Life ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Inner workings of a transcription factor partnership (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Graves, B J -- New York, N.Y. -- Science. 1998 Feb 13;279(5353):1000-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Huntsman Cancer Institute, Department of Oncological Sciences, University of Utah, Salt Lake City, UT 84132, USA. graves@bioscience.utah.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9490475" target="_blank"〉PubMed〈/a〉
    Keywords: Ankyrins/chemistry ; Base Sequence ; Binding Sites ; DNA/chemistry/*metabolism ; DNA-Binding Proteins/*chemistry/*metabolism ; Dimerization ; GA-Binding Protein Transcription Factor ; Hydrogen Bonding ; Leucine Zippers ; Models, Molecular ; Protein Conformation ; Protein Structure, Secondary ; Transcription Factors/*chemistry/*metabolism ; Transcriptional Activation
    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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    Protein kinase B kinases that mediate phosphatidylinositol 3,4,5-trisphosphate-dependent activation of protein kinase B (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-21
    Description: Protein kinase B (PKB) is activated in response to phosphoinositide 3-kinases and their lipid products phosphatidylinositol 3,4, 5-trisphosphate [PtdIns(3,4,5)P3] and PtdIns(3,4)P2 in the signaling pathways used by a wide variety of growth factors, antigens, and inflammatory stimuli. PKB is a direct target of these lipids, but this regulation is complex. The lipids can bind to the pleckstrin homologous domain of PKB, causing its translocation to the membrane, and also enable upstream, Thr308-directed kinases to phosphorylate and activate PKB. Four isoforms of these PKB kinases were purified from sheep brain. They bound PtdIns(3,4,5)P3 and associated with lipid vesicles containing it. These kinases contain an NH2-terminal catalytic domain and a COOH-terminal pleckstrin homologous domain, and their heterologous expression augments receptor activation of PKB, which suggests they are the primary signal transducers that enable PtdIns(3,4,5)P3 or PtdIns- (3,4)P2 to activate PKB and hence to control signaling pathways regulating cell survival, glucose uptake, and glycogen metabolism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stephens, L -- Anderson, K -- Stokoe, D -- Erdjument-Bromage, H -- Painter, G F -- Holmes, A B -- Gaffney, P R -- Reese, C B -- McCormick, F -- Tempst, P -- Coadwell, J -- Hawkins, P T -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):710-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Inositide Laboratory, The Babraham Institute, Babraham, Cambridge CB2 4AT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9445477" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Phosphoinositide-Dependent Protein Kinases ; Alternative Splicing ; Amino Acid Sequence ; Animals ; Cell Line ; Cell Membrane/enzymology ; Cloning, Molecular ; DNA, Complementary ; Drosophila ; Drosophila Proteins ; Enzyme Activation ; Humans ; Liposomes/metabolism ; Molecular Sequence Data ; Open Reading Frames ; Phosphatidylinositol Phosphates/*metabolism ; Phosphorylation ; Platelet-Derived Growth Factor/pharmacology ; Protein-Serine-Threonine Kinases/chemistry/genetics/isolation & ; purification/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-akt ; Rats ; Recombinant Proteins/metabolism ; Sheep ; *Signal Transduction
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    AIDS office head picked (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1998 May 22;280(5367):1181.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9634393" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome/history ; History, 20th Century ; National Institutes of Health (U.S.)/history/*organization & administration ; Research/history/*organization & administration ; United States
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    Ames tackles the riddle of life (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-04-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawler, A -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1840-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9537898" target="_blank"〉PubMed〈/a〉
    Keywords: Budgets ; *Exobiology/economics/organization & administration ; *Origin of Life ; Research Support as Topic ; United States ; *United States National Aeronautics and Space ; Administration/economics/organization & administration
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    Science catches Clinton's eye (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawler, A -- New York, N.Y. -- Science. 1998 Feb 6;279(5352):794-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9480546" target="_blank"〉PubMed〈/a〉
    Keywords: *Budgets ; Financing, Government ; Government Agencies/*economics ; National Institutes of Health (U.S.)/*economics ; *Research Support as Topic ; Tobacco Industry ; United States
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    Tobacco: who pays whom? (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gori, G B -- New York, N.Y. -- Science. 1998 Sep 18;281(5384):1805-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9776683" target="_blank"〉PubMed〈/a〉
    Keywords: *Conflict of Interest ; Humans ; Lung Neoplasms/etiology ; *Tobacco Industry ; Tobacco Smoke Pollution/*adverse effects ; United States ; *United States Environmental Protection Agency
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    Taiwan trolls for U.S. firms to help it create an industry (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Agnew, B -- New York, N.Y. -- Science. 1998 May 22;280(5367):1190.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9634398" target="_blank"〉PubMed〈/a〉
    Keywords: Biotechnology/*economics ; *Commerce ; International Cooperation ; *Investments ; Taiwan ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    FDA scientists resist cuts in in-house research positions (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Agnew, B -- New York, N.Y. -- Science. 1998 Feb 13;279(5353):976-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9490483" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Products ; Biotechnology ; Drug Approval ; Drug Industry ; *Research ; *Research Personnel ; Research Support as Topic ; United States ; United States Food and Drug Administration/*organization & administration
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    AIDS vaccine development (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Agosto, M -- Allan, J -- Benson, C -- Berger, E A -- Blumenthal, R -- Burton, D -- Clements, J -- Coffin, J -- Connor, R -- Cullen, B -- Desrosiers, R -- Dimitrov, D -- Doms, R -- Emerman, M -- Feinberg, M -- Fultz, P -- Gerard, C -- Gonsalves, G -- Haase, A -- Haigwood, N -- Hirsch, V -- Ho, D -- Hoxie, J A -- Hu, S L -- Zingale, D -- New York, N.Y. -- Science. 1998 May 8;280(5365):803, 804-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9599148" target="_blank"〉PubMed〈/a〉
    Keywords: *AIDS Vaccines/immunology ; Acquired Immunodeficiency Syndrome/prevention & control ; *Clinical Trials as Topic ; HIV Envelope Protein gp120/immunology ; HIV-1/immunology ; Humans ; National Institutes of Health (U.S.) ; United States
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    A bonanza for plant genomics (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Oct 23;282(5389):652-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841420" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/genetics ; Budgets ; Crops, Agricultural/*genetics ; DNA Transposable Elements ; Financing, Government ; Gene Expression Regulation, Plant ; *Genome, Plant ; International Cooperation ; Mutagenesis, Insertional ; Oryza/genetics ; *Physical Chromosome Mapping/economics ; *Research Support as Topic ; *Sequence Analysis, DNA/economics ; United States ; Zea mays/*genetics
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    Transition from moderate to excessive drug intake: change in hedonic set point (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-09
    Description: Differential access to cocaine self-administration produced two patterns of drug intake in rats. With 1 hour of access per session, drug intake remained low and stable. In contrast, with 6 hours of access, drug intake gradually escalated over days. After escalation, drug consumption was characterized by an increased early drug loading and an upward shift in the cocaine dose-response function, suggesting an increase in hedonic set point. After 1 month of abstinence, escalation of cocaine intake was reinstated to a higher level than before. These findings may provide an animal model for studying the development of excessive drug intake and the basis of addiction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ahmed, S H -- Koob, G F -- DA04398/DA/NIDA NIH HHS/ -- DA08467/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1998 Oct 9;282(5387):298-300.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Psychopharmacology, Department of Neuropharmacology, CVN-7, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. aserge@sage.scripps.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9765157" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Addictive ; Cocaine/*administration & dosage ; Cocaine-Related Disorders/*etiology ; Dose-Response Relationship, Drug ; Drug Tolerance ; Male ; Rats ; Rats, Wistar ; Reinforcement (Psychology) ; Time Factors
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    Mercury in fish (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clarkson, T -- Cox, C -- Davidson, P W -- Myers, G J -- New York, N.Y. -- Science. 1998 Jan 23;279(5350):459, 461.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9454336" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Child ; *Fishes ; *Food Contamination ; Humans ; Iraq ; Maximum Allowable Concentration ; Methylmercury Compounds/administration & dosage/*adverse effects/analysis ; *Nutrition Policy ; Seychelles ; United States ; United States Environmental Protection Agency ; World Health Organization
    Print ISSN: 0036-8075
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    A model for the mechanism of human topoisomerase I (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: The three-dimensional structure of a 70-kilodalton amino terminally truncated form of human topoisomerase I in complex with a 22-base pair duplex oligonucleotide, determined to a resolution of 2.8 angstroms, reveals all of the structural elements of the enzyme that contact DNA. The linker region that connects the central core of the enzyme to the carboxyl-terminal domain assumes a coiled-coil configuration and protrudes away from the remainder of the enzyme. The positively charged DNA-proximal surface of the linker makes only a few contacts with the DNA downstream of the cleavage site. In combination with the crystal structures of the reconstituted human topoisomerase I before and after DNA cleavage, this information suggests which amino acid residues are involved in catalyzing phosphodiester bond breakage and religation. The structures also lead to the proposal that the topoisomerization step occurs by a mechanism termed "controlled rotation."〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stewart, L -- Redinbo, M R -- Qiu, X -- Hol, W G -- Champoux, J J -- CA65656/CA/NCI NIH HHS/ -- GM16713/GM/NIGMS NIH HHS/ -- GM49156/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Mar 6;279(5356):1534-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biomolecular Structure Center and Department of Biological Structure, School of Medicine, University of Washington, Seattle, WA 98195-7742, USA. emerald_biostructures@rocketmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9488652" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arginine/chemistry/metabolism ; Binding Sites ; Catalysis ; Crystallography, X-Ray ; DNA/chemistry/*metabolism ; DNA Topoisomerases, Type I/*chemistry/*metabolism ; Humans ; Hydrogen Bonding ; *Models, Chemical ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Oligodeoxyribonucleotides/chemistry/metabolism ; *Protein Conformation ; Protein Structure, Secondary ; Tyrosine/chemistry/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Bailout for drug research institute (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, R -- New York, N.Y. -- Science. 1998 Apr 17;280(5362):372.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9575079" target="_blank"〉PubMed〈/a〉
    Keywords: *Academies and Institutes/economics/organization & administration ; *Drug Industry/economics ; Hungary ; *Pharmaceutical Preparations ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Lawsuit targets Yellowstone bug deal (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Mar 13;279(5357):1624.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9518372" target="_blank"〉PubMed〈/a〉
    Keywords: Biotechnology/*legislation & jurisprudence ; Conservation of Natural Resources/*legislation & jurisprudence ; Northwestern United States ; Public Policy ; Technology Transfer ; United States ; United States Environmental Protection Agency
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    Target-specific expression of presynaptic mossy fiber plasticity (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: Mossy fiber synaptic transmission at hippocampal CA3 pyramidal cells and interneurons was compared in rat brain slices to determine whether mossy terminals are functionally equivalent. Tetanic stimulation of mossy fibers induced long-term potentiation in pyramidal neurons but was either without effect or it induced depression at synapses onto interneurons. Unlike transmission onto pyramidal neurons, transmission onto interneurons was not potentiated after adenosine 3',5'-monophosphate (cAMP) activation. Furthermore, metabotropic glutamate receptor depression of transmission onto interneurons did not involve cAMP-dependent pathways. Thus, synaptic terminals arising from a common afferent pathway do not function as a single compartment but are specialized, depending on their postsynaptic target.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maccaferri, G -- Toth, K -- McBain, C J -- New York, N.Y. -- Science. 1998 Feb 27;279(5355):1368-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cellular and Molecular Neurophysiology, Room 5A72, Building 49, National Institute of Child Health and Human Development, 9000 Rockville Pike, Bethesda MD 20892-4495, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9478900" target="_blank"〉PubMed〈/a〉
    Keywords: Afferent Pathways ; Animals ; Colforsin/pharmacology ; Cyclic AMP/metabolism ; Cycloleucine/analogs & derivatives/pharmacology ; Cyclopropanes/pharmacology ; Electric Stimulation ; Excitatory Postsynaptic Potentials/drug effects ; Glycine/analogs & derivatives/pharmacology ; Hippocampus/cytology/*physiology ; In Vitro Techniques ; Interneurons/drug effects/*physiology ; *Long-Term Potentiation ; Mossy Fibers, Hippocampal/*physiology ; Pyramidal Cells/drug effects/*physiology ; Rats ; Rats, Sprague-Dawley ; Receptors, Metabotropic Glutamate/agonists/physiology ; Synaptic Transmission/drug effects
    Print ISSN: 0036-8075
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    Postdoctoral patterns, career advancement, and problems (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-08
    Description: Postdoctoral appointments can have different functions and meanings, depending on the field and whether the postdoc is a man or a woman. The Ph.D.'s-Ten Years Later study confirmed that in biochemistry, the postdoc, not the Ph.D., has become the general proving ground for excellence both in academia and industry. Because they spent a longer time in these "mandatory" postdocs, biochemists had the largest proportion of untenured faculty 10 to 13 years after the Ph. D. In mathematics, where substantially fewer postdoctoral positions are available, Ph.D.'s taking postdocs are more likely to obtain faculty positions, but this is true only for men. University administrators should be accountable for monitoring the total time spent in these positions and should provide administrative assistance for skills training, career growth, and the job search. In addition, creative solutions concerning the dual-career couple phenomenon are necessary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nerad, M -- Cerny, J -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1533-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate Division, University of California, Berkeley, 424 Sproul Hall, Berkeley, CA 94720-5900, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10477510" target="_blank"〉PubMed〈/a〉
    Keywords: *Biochemistry/education ; *Career Mobility ; *Education, Graduate ; Employment ; Faculty ; *Fellowships and Scholarships ; Female ; Humans ; Male ; *Mathematics ; Salaries and Fringe Benefits ; Societies, Scientific ; Time Factors ; United States ; Universities
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    Energy transduction on the nanosecond time scale: early structural events in a xanthopsin photocycle (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-04-16
    Description: Photoactive yellow protein (PYP) is a member of the xanthopsin family of eubacterial blue-light photoreceptors. On absorption of light, PYP enters a photocycle that ultimately transduces the energy contained in a light signal into an altered biological response. Nanosecond time-resolved x-ray crystallography was used to determine the structure of the short-lived, red-shifted, intermediate state denoted [pR], which develops within 1 nanosecond after photoelectronic excitation of the chromophore of PYP by absorption of light. The resulting structural model demonstrates that the [pR] state possesses the cis conformation of the 4-hydroxyl cinnamic thioester chromophore, and that the process of trans to cis isomerization is accompanied by the specific formation of new hydrogen bonds that replace those broken upon excitation of the chromophore. Regions of flexibility that compose the chromophore-binding pocket serve to lower the activation energy barrier between the dark state, denoted pG, and [pR], and help initiate entrance into the photocycle. Direct structural evidence is provided for the initial processes of transduction of light energy, which ultimately translate into a physiological signal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perman, B -- Srajer, V -- Ren, Z -- Teng, T -- Pradervand, C -- Ursby, T -- Bourgeois, D -- Schotte, F -- Wulff, M -- Kort, R -- Hellingwerf, K -- Moffat, K -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1946-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9506946" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/*chemistry/metabolism ; Chromatiaceae/chemistry ; Crystallography, X-Ray ; Energy Metabolism ; Fourier Analysis ; Hydrogen Bonding ; Isomerism ; Kinetics ; *Light ; Models, Molecular ; *Photoreceptors, Microbial ; *Protein Conformation ; Signal Transduction
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    A call for more science in EPA regulations (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Madia, W J -- New York, N.Y. -- Science. 1998 Oct 2;282(5386):45.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9786793" target="_blank"〉PubMed〈/a〉
    Keywords: Chlorine ; *Environmental Pollutants ; Government Agencies ; National Institutes of Health (U.S.) ; *Research ; United States ; United States Environmental Protection Agency/*legislation & jurisprudence ; Water Supply
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    Beefed-up NIH center probes unconventional therapies (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin, J -- New York, N.Y. -- Science. 1998 Dec 18;282(5397):2175-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9890822" target="_blank"〉PubMed〈/a〉
    Keywords: Budgets ; Cartilage ; *Complementary Therapies/economics/organization & administration ; Controlled Clinical Trials as Topic ; Humans ; Lung Neoplasms/therapy ; National Institutes of Health (U.S.)/economics/*organization & administration ; Research Support as Topic ; Tissue Extracts/therapeutic use ; United States
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    Src activation in the induction of long-term potentiation in CA1 hippocampal neurons (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: Long-term potentiation (LTP) is an activity-dependent strengthening of synaptic efficacy that is considered to be a model of learning and memory. Protein tyrosine phosphorylation is necessary to induce LTP. Here, induction of LTP in CA1 pyramidal cells of rats was prevented by blocking the tyrosine kinase Src, and Src activity was increased by stimulation producing LTP. Directly activating Src in the postsynaptic neuron enhanced excitatory synaptic responses, occluding LTP. Src-induced enhancement of alpha-amino-3-hydroxy-5-methylisoxazolepropionic acid (AMPA) receptor-mediated synaptic responses required raised intracellular Ca2+ and N-methyl-D-aspartate (NMDA) receptors. Thus, Src activation is necessary and sufficient for inducing LTP and may function by up-regulating NMDA receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lu, Y M -- Roder, J C -- Davidow, J -- Salter, M W -- New York, N.Y. -- Science. 1998 Feb 27;279(5355):1363-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Samuel Lunenfeld Research Institute, Mount Sinai Hospital, and Department of Molecular and Medical Genetics, University of Toronto, M5S 1A8, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9478899" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Calcium/metabolism ; Electric Stimulation ; Enzyme Activation ; Excitatory Postsynaptic Potentials/drug effects ; Hippocampus/cytology/enzymology/*physiology ; In Vitro Techniques ; *Long-Term Potentiation ; Molecular Sequence Data ; Oligopeptides/pharmacology ; Patch-Clamp Techniques ; Peptide Fragments/pharmacology ; Proto-Oncogene Proteins pp60(c-src)/pharmacology ; Pyramidal Cells/enzymology/*physiology ; Rats ; Rats, Sprague-Dawley ; Receptors, AMPA/physiology ; Receptors, N-Methyl-D-Aspartate/physiology ; Recombinant Proteins/pharmacology ; Up-Regulation ; src-Family Kinases/*metabolism
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    The man who would spin genes into gold (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1999 Aug 13;285(5430):999.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10475850" target="_blank"〉PubMed〈/a〉
    Keywords: Biotechnology/history ; Genetics, Medical/history ; Genome, Human ; History, 20th Century ; Humans ; United States
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    Structure of key cytoskeletal protein tubulin revealed (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-01-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Jan 9;279(5348):176-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9446222" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/*chemistry ; Binding Sites ; Cell Division ; Crystallization ; Crystallography/*methods ; Crystallography, X-Ray ; *Cytoskeletal Proteins ; GTP-Binding Proteins/chemistry ; Guanosine Triphosphate/metabolism ; Microtubules/chemistry ; Models, Molecular ; *Protein Conformation ; Protein Structure, Secondary ; Tubulin/*chemistry
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    Neurons and silicon get intimate (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Service, R F -- New York, N.Y. -- Science. 1999 Apr 23;284(5414):578-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10328734" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Electric Stimulation ; Electrodes ; Electrodes, Implanted ; *Electronics ; Electrophysiology ; Humans ; Nerve Net/*physiology ; Nervous System Diseases/*therapy ; Neurons/*physiology ; Rats ; Silicon ; *Transistors, Electronic
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    Redesigning enzyme topology by directed evolution (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-04-16
    Description: Genetic selection was exploited in combination with structure-based design to transform an intimately entwined, dimeric chorismate mutase into a monomeric, four-helix-bundle protein with near native activity. Successful reengineering depended on choosing a thermostable starting protein, introducing point mutations that preferentially destabilize the wild-type dimer, and using directed evolution to optimize an inserted interhelical turn. Contrary to expectations based on studies of other four-helix-bundle proteins, only a small fraction of possible turn sequences (fewer than 0.05 percent) yielded well-behaved, monomeric, and highly active enzymes. Selection for catalytic function thus provides an efficient yet stringent method for rapidly assessing correctly folded polypeptides and may prove generally useful for protein design.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉MacBeath, G -- Kast, P -- Hilvert, D -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1958-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Scripps Research Institute, Department of Chemistry, 10550 North Torrey Pines Road, La Jolla, California, 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9506949" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Catalysis ; Chorismate Mutase/*chemistry/genetics/*metabolism ; Circular Dichroism ; Cloning, Molecular ; Dimerization ; *Directed Molecular Evolution ; Escherichia coli/genetics ; Models, Molecular ; Molecular Sequence Data ; *Protein Conformation ; *Protein Engineering ; Protein Folding ; Protein Structure, Secondary ; Recombinant Proteins/chemistry/metabolism ; Transformation, Bacterial
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    Need for neutron diffraction instruments (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Langan, P -- Schoenborn, B P -- New York, N.Y. -- Science. 1999 Nov 5;286(5442):1089.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610521" target="_blank"〉PubMed〈/a〉
    Keywords: Crystallography/*instrumentation ; *Neutrons ; Proteins/*chemistry ; United States
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    A record grant for college programs (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin, J -- New York, N.Y. -- Science. 1998 Sep 18;281(5384):1779.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9776674" target="_blank"〉PubMed〈/a〉
    Keywords: Academies and Institutes/*economics ; Biology/*education ; *Training Support ; United States ; Universities/*economics
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  • 87
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    Evolution of a protein fold in vitro (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-09
    Description: A "switch" mutant of the Arc repressor homodimer was constructed by interchanging the sequence positions of a hydrophobic core residue, leucine 12, and an adjacent surface polar residue, asparagine 11, in each strand of an intersubunit beta sheet. The mutant protein adopts a fold in which each beta strand is replaced by a right-handed helix and side chains in this region undergo significant repacking. The observed structural changes allow the protein to maintain solvent exposure of polar side chains and optimal burial of hydrophobic side chains. These results suggest that new protein folds can evolve from existing folds without drastic or large-scale mutagenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cordes, M H -- Walsh, N P -- McKnight, C J -- Sauer, R T -- AI-15706/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1999 Apr 9;284(5412):325-8.〈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/10195898" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Asparagine/chemistry ; Circular Dichroism ; Hydrogen Bonding ; Leucine/chemistry ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis, Insertional ; Nuclear Magnetic Resonance, Biomolecular ; Protein Conformation ; *Protein Folding ; *Protein Structure, Secondary ; Protein Structure, Tertiary ; Repressor Proteins/*chemistry ; Viral Proteins/*chemistry ; Viral Regulatory and Accessory Proteins
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    Drug development in space? (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Laver, W G -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2089.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10409063" target="_blank"〉PubMed〈/a〉
    Keywords: Crystallization ; Neuraminidase/*chemistry ; *Space Flight ; *Spacecraft ; United States ; United States National Aeronautics and Space Administration ; *Weightlessness
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    Crystal structure of invasin: a bacterial integrin-binding protein (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-09
    Description: The Yersinia pseudotuberculosis invasin protein promotes bacterial entry by binding to host cell integrins with higher affinity than natural substrates such as fibronectin. The 2.3 angstrom crystal structure of the invasin extracellular region reveals five domains that form a 180 angstrom rod with structural similarities to tandem fibronectin type III domains. The integrin-binding surfaces of invasin and fibronectin include similarly located key residues, but in the context of different folds and surface shapes. The structures of invasin and fibronectin provide an example of convergent evolution, in which invasin presents an optimized surface for integrin binding, in comparison with host substrates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hamburger, Z A -- Brown, M S -- Isberg, R R -- Bjorkman, P J -- New York, N.Y. -- Science. 1999 Oct 8;286(5438):291-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology 156-29, Howard Hughes Medical Institute, California Institute of Technology, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10514372" target="_blank"〉PubMed〈/a〉
    Keywords: *Adhesins, Bacterial ; Amino Acid Sequence ; Bacterial Proteins/*chemistry/metabolism ; Binding Sites ; Crystallography, X-Ray ; Evolution, Molecular ; Fibronectins/chemistry/metabolism ; Hydrogen Bonding ; Integrins/*metabolism ; Ligands ; Models, Molecular ; Protein Binding ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Yersinia pseudotuberculosis/*chemistry/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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    NRC panel to propose station institute (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-09-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawler, A -- New York, N.Y. -- Science. 1999 Dec 17;286:2251.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11542666" target="_blank"〉PubMed〈/a〉
    Keywords: National Academy of Sciences (U.S.) ; Research/organization & administration/*trends ; United States ; United States National Aeronautics and Space Administration/*organization & ; administration
    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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  • 91
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    From mice to maize (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawler, C -- Erbisch, F -- New York, N.Y. -- Science. 1999 Jan 1;283(5398):33-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9917260" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biotechnology ; Mice ; Mice, Transgenic ; *Patents as Topic ; Plants, Genetically Modified/*genetics ; United States
    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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  • 92
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    Ethical dilemmas and stem cell research (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shapiro, H T -- New York, N.Y. -- Science. 1999 Sep 24;285(5436):2065.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10523197" target="_blank"〉PubMed〈/a〉
    Keywords: Advisory Committees ; *Bioethical Issues ; Embryo Research ; Embryo, Mammalian/*cytology ; Ethics Committees ; Financing, Government ; Government Regulation ; Humans ; Private Sector ; *Public Policy ; Research/*standards ; Research Support as Topic ; *Stem Cells ; United States
    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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  • 93
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    Gertrude Belle Elion (1918-1999) (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Colvin, M -- New York, N.Y. -- Science. 1999 May 28;284(5419):1480.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Duke Comprehensive Cancer Center, Durham, NC 27710, USA. colvi003@mc.duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10383327" target="_blank"〉PubMed〈/a〉
    Keywords: Chemistry, Pharmaceutical/history ; Drug Design ; History, 20th Century ; Nobel Prize ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 94
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    Stem cells. Rat spinal cord function partially restored (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1999 Dec 3;286(5446):1826-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610569" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Astrocytes/cytology ; Cell Differentiation ; Cell Survival ; Embryo, Mammalian ; Mice ; Neurons/cytology ; Oligodendroglia/cytology ; Rats ; Spinal Cord/cytology/*physiology ; Spinal Cord Injuries/*therapy ; *Stem Cell Transplantation ; Stem Cells/cytology
    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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  • 95
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    Key brain receptor gets an unusual regulator (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1999 Nov 12;286(5443):1265-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610528" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Astrocytes/*enzymology ; Brain/*enzymology ; Cloning, Molecular ; Glutamic Acid/metabolism ; Neurons/metabolism ; Racemases and Epimerases/*genetics/metabolism ; Rats ; Receptors, N-Methyl-D-Aspartate/metabolism ; Serine/*biosynthesis/metabolism ; Stereoisomerism ; Synapses/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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    Filling in the blanks of the GABAB receptor (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1999 Jan 1;283(5398):14-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9917254" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/metabolism ; Cells, Cultured ; Dimerization ; Drug Design ; Humans ; Neurons/*metabolism ; Potassium Channels/metabolism ; Rats ; Receptors, GABA-B/*chemistry/*metabolism ; Signal Transduction ; gamma-Aminobutyric Acid/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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  • 97
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    Uncontrolled release of harmful microorganisms (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Av-Gay, Y -- New York, N.Y. -- Science. 1999 Jun 4;284(5420):1621.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10383337" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria/*genetics/pathogenicity ; *Biotechnology ; *Containment of Biohazards ; Ecosystem ; *Genetic Engineering ; Guidelines as Topic ; Humans ; United States ; Viruses/*genetics/pathogenicity
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 98
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    Rapid spine delivery and redistribution of AMPA receptors after synaptic NMDA receptor activation (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-12
    Description: To monitor changes in alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionate (AMPA) receptor distribution in living neurons, the AMPA receptor subunit GluR1 was tagged with green fluorescent protein (GFP). This protein (GluR1-GFP) was functional and was transiently expressed in hippocampal CA1 neurons. In dendrites visualized with two-photon laser scanning microscopy or electron microscopy, most of the GluR1-GFP was intracellular, mimicking endogenous GluR1 distribution. Tetanic synaptic stimulation induced a rapid delivery of tagged receptors into dendritic spines as well as clusters in dendrites. These postsynaptic trafficking events required synaptic N-methyl-D-aspartate (NMDA) receptor activation and may contribute to the enhanced AMPA receptor-mediatedtransmission observed during long-term potentiation and activity-dependent synaptic maturation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shi, S H -- Hayashi, Y -- Petralia, R S -- Zaman, S H -- Wenthold, R J -- Svoboda, K -- Malinow, R -- New York, N.Y. -- Science. 1999 Jun 11;284(5421):1811-6.〈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/10364548" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Dendrites/*metabolism/ultrastructure ; Electric Stimulation ; Hippocampus/cytology/physiology ; Humans ; Long-Term Potentiation ; *Neuronal Plasticity ; Neurons/*physiology ; Organ Culture Techniques ; Rats ; Receptor Aggregation ; Receptors, AMPA/*metabolism ; Receptors, N-Methyl-D-Aspartate/*physiology ; Recombinant Fusion Proteins/metabolism ; Synapses/metabolism/*physiology ; Synaptic Transmission ; Tetany
    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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  • 99
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    Perspectives: protein structure. Class-conscious TCR? (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, I A -- New York, N.Y. -- Science. 1999 Dec 3;286(5446):1867-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. wilson@scripps.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610577" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens/*chemistry/immunology/metabolism ; Binding Sites ; CD4-Positive T-Lymphocytes/immunology/metabolism ; CD8-Positive T-Lymphocytes/immunology/metabolism ; Crystallography, X-Ray ; Histocompatibility Antigens Class I/chemistry/immunology/metabolism ; Histocompatibility Antigens Class II/*chemistry/immunology/metabolism ; Mice ; Models, Molecular ; Peptides/chemistry/immunology/metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Secondary ; Receptors, Antigen, T-Cell, alpha-beta/*chemistry/immunology/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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  • 100
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    Nutraceuticals (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Curry, M -- Hazard-Daniel, A -- Daniel, H J -- New York, N.Y. -- Science. 1999 Dec 3;286(5446):1854-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610573" target="_blank"〉PubMed〈/a〉
    Keywords: *Dietary Supplements/adverse effects ; Drug Prescriptions ; Drug-Related Side Effects and Adverse Reactions ; *Legislation, Drug ; *Legislation, Food ; United States ; United States Food and Drug Administration
    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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