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  • United States  (113)
  • Binding Sites  (61)
  • American Association for the Advancement of Science (AAAS)  (174)
  • Woods Hole Oceanographic Institution
  • 2005-2009
  • 1995-1999  (174)
  • 1997  (174)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (174)
  • Woods Hole Oceanographic Institution
  • Springer  (5)
Years
  • 2005-2009
  • 1995-1999  (174)
Year
  • 1
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    Nuclear accumulation of NFAT4 opposed by the JNK signal transduction pathway (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: The nuclear factor of activated T cells (NFAT) group of transcription factors is retained in the cytoplasm of quiescent cells. NFAT activation is mediated in part by induced nuclear import. This process requires calcium-dependent dephosphorylation of NFAT caused by the phosphatase calcineurin. The c-Jun amino-terminal kinase (JNK) phosphorylates NFAT4 on two sites. Mutational removal of the JNK phosphorylation sites caused constitutive nuclear localization of NFAT4. In contrast, JNK activation in calcineurin-stimulated cells caused nuclear exclusion of NFAT4. These findings show that the nuclear accumulation of NFAT4 promoted by calcineurin is opposed by the JNK signal transduction pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chow, C W -- Rincon, M -- Cavanagh, J -- Dickens, M -- Davis, R J -- CA58396/CA/NCI NIH HHS/ -- CA65831/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Nov 28;278(5343):1638-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Program in Molecular Medicine, Department of Biochemistry and Molecular Biology, University of Massachusetts Medical School, Worcester, MA 01605, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9374467" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; COS Cells ; Calcineurin/metabolism ; Calcineurin Inhibitors ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Cell Line ; Cell Nucleus/*metabolism ; Cyclosporine/pharmacology ; Cytoplasm/metabolism ; DNA-Binding Proteins/genetics/*metabolism ; Humans ; JNK Mitogen-Activated Protein Kinases ; Jurkat Cells ; Mitogen-Activated Protein Kinase Kinases ; *Mitogen-Activated Protein Kinases ; Mutation ; NFATC Transcription Factors ; *Nuclear Proteins ; Phosphorylation ; Protein Kinases/metabolism ; Recombinant Fusion Proteins/metabolism ; *Signal Transduction ; T-Lymphocytes/metabolism ; Transcription Factors/genetics/*metabolism ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Discrete determinants in transfer RNA for editing and aminoacylation (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-23
    Description: During translation errors of aminoacylation are corrected in editing reactions which ensure that an amino acid is stably attached to its corresponding transfer RNA (tRNA). Previous studies have not shown whether the tRNA nucleotides needed for effecting translational editing are the same as or distinct from those required for aminoacylation, but several considerations have suggested that they are the same. Here, designed tRNAs that are highly active for aminoacylation but are not active in translational editing are presented. The editing reaction can be controlled by manipulation of nucleotides at the corner of the L-shaped tRNA. In contrast, these manipulations do not affect aminoacylation. These results demonstrate the segregation of nucleotide determinants for the editing and aminoacylation functions of tRNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hale, S P -- Auld, D S -- Schmidt, E -- Schimmel, P -- GM15539/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 May 23;276(5316):1250-2.〈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/9157882" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Base Sequence ; Binding Sites ; Cloning, Molecular ; Escherichia coli ; Molecular Sequence Data ; Nucleic Acid Conformation ; *RNA Editing ; RNA, Transfer/*metabolism ; RNA, Transfer, Ile/chemistry/metabolism ; RNA, Transfer, Val/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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  • 3
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    AIDS research chief bows out (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1997 Oct 10;278(5336):218.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9340767" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome ; History, 20th Century ; National Institutes of Health (U.S.)/*organization & administration ; Research ; 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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  • 4
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    Crystal structure of the nucleotide exchange factor GrpE bound to the ATPase domain of the molecular chaperone DnaK (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-18
    Description: The crystal structure of the adenine nucleotide exchange factor GrpE in complex with the adenosine triphosphatase (ATPase) domain of Escherichia coli DnaK [heat shock protein 70 (Hsp70)] was determined at 2.8 angstrom resolution. A dimer of GrpE binds asymmetrically to a single molecule of DnaK. The structure of the nucleotide-free ATPase domain in complex with GrpE resembles closely that of the nucleotide-bound mammalian Hsp70 homolog, except for an outward rotation of one of the subdomains of the protein. This conformational change is not consistent with tight nucleotide binding. Two long alpha helices extend away from the GrpE dimer and suggest a role for GrpE in peptide release from DnaK.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harrison, C J -- Hayer-Hartl, M -- Di Liberto, M -- Hartl, F -- Kuriyan, J -- New York, N.Y. -- Science. 1997 Apr 18;276(5311):431-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratories of Molecular Biophysics and Howard Hughes Medical Institute, 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/9103205" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Diphosphate/metabolism ; Adenosine Triphosphatases/*chemistry/metabolism ; Amino Acid Sequence ; Bacterial Proteins/*chemistry/metabolism ; Binding Sites ; Crystallography, X-Ray ; Dimerization ; *Escherichia coli Proteins ; HSP70 Heat-Shock Proteins/*chemistry/metabolism ; Heat-Shock Proteins/*chemistry/metabolism ; Hydrogen Bonding ; Models, Molecular ; Molecular Chaperones/*chemistry/metabolism ; Molecular Sequence Data ; *Protein Conformation ; Protein Structure, Secondary
    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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    NCI reverses one expert panel, sides with another (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taubes, G -- New York, N.Y. -- Science. 1997 Apr 4;276(5309):27-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122702" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Age Factors ; Breast Neoplasms/*prevention & control/radiography ; Consensus Development Conferences, NIH as Topic ; Female ; Humans ; *Mammography ; *Mass Screening ; Middle Aged ; *National Institutes of Health (U.S.) ; Randomized Controlled Trials as Topic ; Risk Factors ; 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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  • 6
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    Human genome agreements (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lorimer, B G -- New York, N.Y. -- Science. 1997 Jan 31;275(5300):601-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9019811" target="_blank"〉PubMed〈/a〉
    Keywords: Academies and Institutes ; Base Sequence ; DNA, Complementary/*genetics ; Databases, Factual ; *Genome, Human ; Humans ; Intellectual Property ; Publishing ; Research Support as Topic ; Sequence Analysis, DNA ; 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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  • 7
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    Key player: Kevin Kinsella. The industry's top showman (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1997 Feb 7;275(5301):773.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9036538" target="_blank"〉PubMed〈/a〉
    Keywords: Biotechnology/history/*organization & administration ; Genetics, Medical/history/*organization & administration ; Genome, Human ; History, 20th Century ; Humans ; Industry/history/organization & administration ; Molecular Biology/history/*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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  • 8
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    Evaluating biologics (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rall, J E -- New York, N.Y. -- Science. 1997 May 30;276(5317):1319-20.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9190671" target="_blank"〉PubMed〈/a〉
    Keywords: *Drug Evaluation ; National Institutes of Health (U.S.) ; Professional Competence ; Research Personnel ; 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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  • 9
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    Amidation of bioactive peptides: the structure of peptidylglycine alpha-hydroxylating monooxygenase (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-11-21
    Description: Many neuropeptides and peptide hormones require amidation at the carboxyl terminus for activity. Peptidylglycine alpha-amidating monooxygenase (PAM) catalyzes the amidation of these diverse physiological regulators. The amino-terminal domain of the bifunctional PAM protein is a peptidylglycine alpha-hydroxylating monooxygenase (PHM) with two coppers that cycle through cupric and cuprous oxidation states. The anomalous signal of the endogenous coppers was used to determine the structure of the catalytic core of oxidized rat PHM with and without bound peptide substrate. These structures strongly suggest that the PHM reaction proceeds via activation of substrate by a copper-bound oxygen species. The mechanistic and structural insight gained from the PHM structures can be directly extended to dopamine beta-monooxygenase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prigge, S T -- Kolhekar, A S -- Eipper, B A -- Mains, R E -- Amzel, L M -- DK32949/DK/NIDDK NIH HHS/ -- GM44692/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1300-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biophysics and Biophysical Chemistry, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9360928" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Catalysis ; Copper/chemistry/metabolism ; Crystallography, X-Ray ; Dipeptides/metabolism ; Dopamine beta-Hydroxylase/chemistry/metabolism ; Electrons ; Hydroxylation ; Ligands ; Mixed Function Oxygenases/*chemistry/metabolism ; Models, Molecular ; *Multienzyme Complexes ; Oxidation-Reduction ; Oxygen/metabolism ; Peptides/metabolism ; *Protein Conformation ; Protein Structure, Secondary ; Rats
    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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    Precursor-directed biosynthesis of erythromycin analogs by an engineered polyketide synthase (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-18
    Description: A genetic block was introduced in the first condensation step of the polyketide biosynthetic pathway that leads to the formation of 6-deoxyerythronolide B (6-dEB), the macrocyclic precursor of erythromycin. Exogenous addition of designed synthetic molecules to small-scale cultures of this null mutant resulted in highly selective multimilligram production of unnatural polyketides, including aromatic and ring-expanded variants of 6-dEB. Unexpected incorporation patterns were observed, illustrating the catalytic versatility of modular polyketide synthases. Further processing of some of these scaffolds by postpolyketide enzymes of the erythromycin pathway resulted in the generation of novel antibacterials with in vitro potency comparable to that of their natural counterparts.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jacobsen, J R -- Hutchinson, C R -- Cane, D E -- Khosla, C -- CA66736/CA/NCI NIH HHS/ -- GM22172/GM/NIGMS NIH HHS/ -- GM31925/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):367-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical Engineering, Stanford University, Stanford, CA 94305-5025, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9219693" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Substitution ; Bacillus cereus/drug effects/growth & development ; Binding Sites ; Catalysis ; Cyclization ; Erythromycin/*analogs & derivatives/biosynthesis/pharmacology ; Microbial Sensitivity Tests ; Multienzyme Complexes/*genetics/*metabolism ; *Mutagenesis, Site-Directed ; Saccharopolyspora/genetics/metabolism ; Streptomyces/enzymology/genetics/*metabolism ; Transformation, Genetic
    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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    Formation of actin stress fibers and focal adhesions enhanced by Rho-kinase (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-28
    Description: The small guanosine triphosphatase (GTPase) Rho is implicated in the formation of stress fibers and focal adhesions in fibroblasts stimulated by extracellular signals such as lysophosphatidic acid (LPA). Rho-kinase is activated by Rho and may mediate some biological effects of Rho. Microinjection of the catalytic domain of Rho-kinase into serum-starved Swiss 3T3 cells induced the formation of stress fibers and focal adhesions, whereas microinjection of the inactive catalytic domain, the Rho-binding domain, or the pleckstrin-homology domain inhibited the LPA-induced formation of stress fibers and focal adhesions. Thus, Rho-kinase appears to mediate signals from Rho and to induce the formation of stress fibers and focal adhesions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Amano, M -- Chihara, K -- Kimura, K -- Fukata, Y -- Nakamura, N -- Matsuura, Y -- Kaibuchi, K -- New York, N.Y. -- Science. 1997 Feb 28;275(5304):1308-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Signal Transduction, Nara Institute of Science and Technology, Ikoma 630-01, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9036856" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Actins/*metabolism ; Adenosine Triphosphate/metabolism ; Animals ; Binding Sites ; *Cell Adhesion ; Cell Line ; DNA, Complementary/genetics ; Enzyme Inhibitors/pharmacology ; GTP Phosphohydrolases/metabolism ; Intracellular Signaling Peptides and Proteins ; Lysophospholipids/pharmacology ; Mice ; Mutation ; Protein-Serine-Threonine Kinases/antagonists & inhibitors/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Staurosporine/pharmacology ; rho-Associated Kinases
    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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  • 12
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    New lesion found in diseased brains (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roush, W -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):31-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9229767" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/metabolism/*pathology ; Amyloid beta-Peptides/immunology ; Antibodies/immunology ; Binding Sites ; Brain/*pathology ; Brain Chemistry ; Humans ; Phosphates/metabolism ; tau Proteins/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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  • 13
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    Mammalian genome debate heats up (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1997 Mar 21;275(5307):1733.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122675" target="_blank"〉PubMed〈/a〉
    Keywords: Advisory Committees ; Animal Husbandry ; Animals ; Animals, Genetically Modified ; *Bioethics ; Cloning, Molecular ; Federal Government ; *Genetic Engineering ; Genetic Research ; Government Regulation ; Humans ; Public Policy ; Risk Assessment ; 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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  • 14
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    Sequencers call for faster data release (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1997 May 23;276(5316):1189-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9182326" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Computer Communication Networks ; *Dna ; Europe ; Germany ; Humans ; *Information Dissemination ; Intellectual Property ; *Internationality ; *Patents as Topic ; Time Factors ; 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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  • 15
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    Hughes network expands by a big leap (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1997 May 23;276(5316):1189.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9182325" target="_blank"〉PubMed〈/a〉
    Keywords: *Academies and Institutes/economics/organization & administration ; Financial Management ; Maryland ; Research Personnel ; *Research Support as Topic ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 16
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    NIH plans peer-review overhaul (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1997 May 9;276(5314):888-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9163031" target="_blank"〉PubMed〈/a〉
    Keywords: *National Institutes of Health (U.S.) ; *Peer Review, Research/methods/standards ; Research Support as Topic ; United States
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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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    From science fiction to ethics quandary (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-11-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, G -- New York, N.Y. -- Science. 1997 Sep 19;277(5333):1753-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9324757" target="_blank"〉PubMed〈/a〉
    Keywords: Advisory Committees ; *Bioethics ; Federal Government ; *Genetic Engineering ; *Genetic Enhancement ; *Genetic Research ; *Genetic Therapy ; *Genetics, Medical ; Government Regulation ; Humans ; National Institutes of Health (U.S.) ; Social Change ; United States ; Wedge Argument
    Print ISSN: 0036-8075
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  • 18
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    NCI plans attack on HIV resistance (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1997 May 2;276(5313):667.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9157541" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*drug therapy/virology ; Anti-HIV Agents/*pharmacology/therapeutic use ; Drug Resistance, Microbial ; HIV/*drug effects ; Humans ; *National Institutes of Health (U.S.) ; United States
    Print ISSN: 0036-8075
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    Lobbyists seek to reslice NIH's pie (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1997 Apr 18;276(5311):344-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9139352" target="_blank"〉PubMed〈/a〉
    Keywords: *Budgets ; Financing, Government ; Lobbying ; National Institutes of Health (U.S.)/*economics ; *Research Support as Topic ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Sequence patents (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cullen, S E -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1861-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122683" target="_blank"〉PubMed〈/a〉
    Keywords: *Amino Acid Sequence ; *Base Sequence ; *Dna ; National Institutes of Health (U.S.)/*legislation & jurisprudence ; *Patents as Topic ; United States
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    Structural insights into the evolution of an antibody combining site (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-13
    Description: The crystal structures of a germline antibody Fab fragment and its complex with hapten have been solved at 2.1 A resolution. These structures are compared with the corresponding crystal structures of the affinity-matured antibody, 48G7, which has a 30,000 times higher affinity for hapten as a result of nine replacement somatic mutations. Significant changes in the configuration of the combining site occur upon binding of hapten to the germline antibody, whereas hapten binds to the mature antibody by a lock-and-key fit mechanism. The reorganization of the combining site that was nucleated by hapten binding is further optimized by somatic mutations that occur up to 15 from bound hapten. These results suggest that the binding potential of the primary antibody repertoire may be significantly expanded by the ability of germline antibodies to adopt more than one combining-site configuration, with both antigen binding and somatic mutation stabilizing the configuration with optimal hapten complementarity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wedemayer, G J -- Patten, P A -- Wang, L H -- Schultz, P G -- Stevens, R C -- R01 AI39089/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1997 Jun 13;276(5319):1665-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9180069" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Catalytic/*chemistry/genetics/immunology ; Antibody Affinity ; Antibody Diversity ; Antigen-Antibody Complex ; Antigen-Antibody Reactions ; Binding Sites ; *Binding Sites, Antibody ; Crystallography, X-Ray ; *Evolution, Molecular ; Haptens/immunology ; Hydrogen Bonding ; Immunoglobulin Fab Fragments/*chemistry/genetics/immunology ; Molecular Sequence Data ; Mutation ; Protein Conformation ; Protein Structure, Secondary
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    U.S., Russia to study radiation effects (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1997 Feb 21;275(5303):1062-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9054005" target="_blank"〉PubMed〈/a〉
    Keywords: Environmental Exposure ; Financing, Government ; Humans ; International Cooperation ; *Nuclear Reactors ; Occupational Exposure ; Plutonium/adverse effects ; *Radiation Dosage ; Radiation Effects ; Radiation Injuries/*etiology ; Radioactive Waste/*adverse effects ; Russia ; Strontium Radioisotopes/adverse effects ; United States
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    Gene tests get tested (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1997 Feb 7;275(5301):782.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9036543" target="_blank"〉PubMed〈/a〉
    Keywords: Advisory Committees ; Centers for Medicare and Medicaid Services (U.S.) ; Confidentiality ; Federal Government ; Genetic Counseling ; Genetic Services ; Genetic Testing/*standards ; *Government ; *Government Regulation ; Humans ; Reproducibility of Results ; *Social Control, Formal ; United States ; United States Food and Drug Administration
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  • 24
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    Shot in the arm for AIDS vaccine (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1997 Mar 14;275(5306):1573.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9072823" target="_blank"〉PubMed〈/a〉
    Keywords: *AIDS Vaccines ; Animals ; Humans ; National Institutes of Health (U.S.)/economics ; *Research Support as Topic ; United States
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    UCSF case raises questions about grant idea ownership (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1997 Sep 5;277(5331):1430-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9304209" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Cutaneous ; Biomedical Research ; California ; Federal Government ; Government Regulation ; Heart/physiology ; Humans ; *Intellectual Property ; Nicotine/administration & dosage ; *Plagiarism ; *Research Support as Topic ; Smoking Cessation ; United States ; United States Office of Research Integrity ; *Universities
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    How much pain for cardiac gain? (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1997 May 30;276(5317):1324-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9190672" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Centers for Disease Control and Prevention (U.S.) ; Exercise/*physiology/psychology ; Female ; Guidelines as Topic ; Heart Diseases/epidemiology/*prevention & control ; Humans ; Male ; Middle Aged ; Risk Factors ; United States
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    Membrane and morphological changes in apoptotic cells regulated by caspase-mediated activation of PAK2 (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-06
    Description: Apoptosis of Jurkat T cells induced the caspase-mediated proteolytic cleavage of p21-activated kinase 2 (PAK2). Cleavage occurred between the amino-terminal regulatory domain and the carboxyl-terminal catalytic domain, which generated a constitutively active PAK2 fragment. Stable Jurkat cell lines that expressed a dominant-negative PAK mutant were resistant to the Fas-induced formation of apoptotic bodies, but had an enhanced externalization of phosphatidylserine at the cell surface. Thus, proteolytic activation of PAK2 represents a guanosine triphosphatase-independent mechanism of PAK regulation that allows PAK2 to regulate morphological changes that are seen in apoptotic cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rudel, T -- Bokoch, G M -- GM39434/GM/NIGMS NIH HHS/ -- HL48008/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1997 Jun 6;276(5318):1571-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, 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/9171063" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Chloromethyl Ketones/pharmacology ; *Apoptosis ; Binding Sites ; Caspase 3 ; *Caspases ; Cell Membrane/*metabolism ; Cysteine Endopeptidases/*metabolism ; Cysteine Proteinase Inhibitors/pharmacology ; Enzyme Activation ; Fas Ligand Protein ; Humans ; Jurkat Cells ; Membrane Glycoproteins/metabolism ; Phosphatidylserines/metabolism ; Protein-Serine-Threonine Kinases/*metabolism ; Recombinant Proteins/metabolism ; T-Lymphocytes/*cytology/enzymology ; p21-Activated Kinases
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    Furor over company deal roils AMA (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 1997 Oct 3;278(5335):26.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9340750" target="_blank"〉PubMed〈/a〉
    Keywords: Advertising as Topic ; *American Medical Association/economics/organization & administration ; Contracts ; Equipment and Supplies ; *Ethics ; *Ethics, Business ; *Industry ; United States
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    Telomerase catalytic subunit homologs from fission yeast and human (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-15
    Description: Catalytic protein subunits of telomerase from the ciliate Euplotes aediculatus and the yeast Saccharomyces cerevisiae contain reverse transcriptase motifs. Here the homologous genes from the fission yeast Schizosaccharomyces pombe and human are identified. Disruption of the S. pombe gene resulted in telomere shortening and senescence, and expression of mRNA from the human gene correlated with telomerase activity in cell lines. Sequence comparisons placed the telomerase proteins in the reverse transcriptase family but revealed hallmarks that distinguish them from retroviral and retrotransposon relatives. Thus, the proposed telomerase catalytic subunits are phylogenetically conserved and represent a deep branch in the evolution of reverse transcriptases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakamura, T M -- Morin, G B -- Chapman, K B -- Weinrich, S L -- Andrews, W H -- Lingner, J -- Harley, C B -- Cech, T R -- GM28039/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Aug 15;277(5328):955-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309-0215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9252327" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Catalysis ; Cell Line ; DNA-Binding Proteins ; Evolution, Molecular ; Genes, Fungal ; Humans ; Introns ; Molecular Sequence Data ; Phylogeny ; Proteins/*chemistry/genetics/metabolism ; *Rna ; RNA, Messenger/genetics/metabolism ; RNA-Directed DNA Polymerase/chemistry ; Retroelements ; Schizosaccharomyces/*enzymology/genetics/growth & development ; Schizosaccharomyces pombe Proteins ; Sequence Alignment ; Telomerase/*chemistry/genetics/metabolism ; Telomere/metabolism
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  • 30
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    Cells count proteins to keep their telomeres in line (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1997 Feb 14;275(5302):928.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9053995" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Chromosomes, Fungal/metabolism ; DNA, Fungal/metabolism ; DNA-Binding Proteins/metabolism ; Fungal Proteins/*metabolism ; GTP-Binding Proteins/*metabolism ; Repressor Proteins/metabolism ; Saccharomyces cerevisiae/genetics/*metabolism ; *Saccharomyces cerevisiae Proteins ; Telomerase/*metabolism ; Telomere/*metabolism ; *Telomere-Binding Proteins ; rap GTP-Binding Proteins
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  • 31
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    Crystal structure of human BPI and two bound phospholipids at 2.4 angstrom resolution (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-20
    Description: Bactericidal/permeability-increasing protein (BPI), a potent antimicrobial protein of 456 residues, binds to and neutralizes lipopolysaccharides from the outer membrane of Gram-negative bacteria. At a resolution of 2.4 angstroms, the crystal structure of human BPI shows a boomerang-shaped molecule formed by two similar domains. Two apolar pockets on the concave surface of the boomerang each bind a molecule of phosphatidylcholine, primarily by interacting with their acyl chains; this suggests that the pockets may also bind the acyl chains of lipopolysaccharide. As a model for the related plasma lipid transfer proteins, BPI illuminates a mechanism of lipid transfer for this protein family.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beamer, L J -- Carroll, S F -- Eisenberg, D -- GM31299/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Jun 20;276(5320):1861-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉UCLA-DOE Laboratory of Structural Biology and Molecular Medicine, Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9188532" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antimicrobial Cationic Peptides ; Binding Sites ; Blood Bactericidal Activity ; Blood Proteins/*chemistry/metabolism ; Crystallization ; Crystallography, X-Ray ; Humans ; Lipopolysaccharides/metabolism ; *Membrane Proteins ; Models, Molecular ; Molecular Sequence Data ; Phosphatidylcholines/chemistry/*metabolism ; *Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary
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    Creating isoprenoid diversity (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-11-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sacchettini, J C -- Poulter, C D -- New York, N.Y. -- Science. 1997 Sep 19;277(5333):1788-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Texas A & M University, College Station, TX 77843-2128, USA. sacchett@seabass.tamu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9324768" target="_blank"〉PubMed〈/a〉
    Keywords: *Alkyl and Aryl Transferases ; Binding Sites ; Carotenoids/biosynthesis ; Catalysis ; Cyclization ; Geranyltranstransferase ; *Intramolecular Lyases ; *Intramolecular Transferases ; Isomerases/*chemistry/metabolism ; Protein Folding ; Sterols/biosynthesis ; Terpenes/*metabolism ; Transferases/chemistry/metabolism
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  • 33
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    Crystal structure of the cytochrome bc1 complex from bovine heart mitochondria (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-04
    Description: On the basis of x-ray diffraction data to a resolution of 2.9 angstroms, atomic models of most protein components of the bovine cytochrome bc1 complex were built, including core 1, core 2, cytochrome b, subunit 6, subunit 7, a carboxyl-terminal fragment of cytochrome c1, and an amino-terminal fragment of the iron-sulfur protein. The positions of the four iron centers within the bc1 complex and the binding sites of the two specific respiratory inhibitors antimycin A and myxothiazol were identified. The membrane-spanning region of each bc1 complex monomer consists of 13 transmembrane helices, eight of which belong to cytochrome b. Closely interacting monomers are arranged as symmetric dimers and form cavities through which the inhibitor binding pockets can be accessed. The proteins core 1 and core 2 are structurally similar to each other and consist of two domains of roughly equal size and identical folding topology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xia, D -- Yu, C A -- Kim, H -- Xia, J Z -- Kachurin, A M -- Zhang, L -- Yu, L -- Deisenhofer, J -- GM 30721/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):60-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75235, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9204897" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antimycin A/metabolism/pharmacology ; Binding Sites ; Cattle ; Crystallography, X-Ray ; Cytochrome b Group/chemistry ; Cytochromes c1/chemistry ; Dimerization ; Electron Transport Complex III/*chemistry/metabolism ; Intracellular Membranes/enzymology ; Iron/metabolism ; Methacrylates ; Mitochondria, Heart/*enzymology ; Models, Molecular ; Molecular Sequence Data ; Oxidation-Reduction ; *Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Thiazoles/metabolism/pharmacology
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  • 34
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    Receptor and betagamma binding sites in the alpha subunit of the retinal G protein transducin (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-17
    Description: Transmembrane receptors for hormones, neurotransmitters, light, and odorants mediate their cellular effects by activating heterotrimeric guanine nucleotide-binding proteins (G proteins). Crystal structures have revealed contact surfaces between G protein subunits, but not the surfaces or molecular mechanism through which Galphabetagamma responds to activation by transmembrane receptors. Such a surface was identified from the results of testing 100 mutant alpha subunits of the retinal G protein transducin for their ability to interact with rhodopsin. Sites at which alanine substitutions impaired this interaction mapped to two distinct Galpha surfaces: a betagamma-binding surface and a putative receptor-interacting surface. On the basis of these results a mechanism for receptor-catalyzed exchange of guanosine diphosphate for guanosine triphosphate is proposed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Onrust, R -- Herzmark, P -- Chi, P -- Garcia, P D -- Lichtarge, O -- Kingsley, C -- Bourne, H R -- CA-54427/CA/NCI NIH HHS/ -- GM-27800/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Jan 17;275(5298):381-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94143-0450, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8994033" target="_blank"〉PubMed〈/a〉
    Keywords: Aluminum Compounds/pharmacology ; Animals ; Binding Sites ; COS Cells ; Fluorides/pharmacology ; Guanosine 5'-O-(3-Thiotriphosphate)/metabolism ; Guanosine Diphosphate/metabolism ; Models, Molecular ; Mutation ; Phenotype ; *Protein Conformation ; Retinaldehyde/pharmacology ; Rhodopsin/*metabolism/pharmacology ; Rod Cell Outer Segment/metabolism ; Transducin/*chemistry/metabolism
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  • 35
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    France distributes iodine near reactors (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, M -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1871-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122686" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Child ; Drug Utilization ; France ; Humans ; Iodine Radioisotopes/adverse effects ; Neoplasms, Radiation-Induced/etiology/*prevention & control ; Potassium Iodide/*administration & dosage ; *Power Plants ; *Radioactive Hazard Release ; Thyroid Neoplasms/etiology/*prevention & control ; United States
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  • 36
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    Your complete Web guide to tumors (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ehrenstein, D -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):762.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9273696" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Chromosome Mapping ; *Computer Communication Networks ; *Databases, Factual ; *Genes ; Genome, Human ; Humans ; National Institutes of Health (U.S.) ; National Library of Medicine (U.S.) ; Neoplasms/*genetics ; United States
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    Broader oversight for research on humans? (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, Jocelyn -- New York, N.Y. -- Science. 1997 Jan 31;275(5300):605.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11644893" target="_blank"〉PubMed〈/a〉
    Keywords: Ethics Committees ; Ethics Committees, Research ; Federal Government ; Government ; *Government Regulation ; *Human Experimentation ; Humans ; Informed Consent ; Legislation as Topic ; Private Sector ; Public Sector ; *Social Control, Formal ; United States ; United States Dept. of Health and Human Services
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Tobacco control: the dramatic choice (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Novelli, W D -- New York, N.Y. -- Science. 1997 Oct 10;278(5336):203.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9340761" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Advertising as Topic ; Child ; Health Policy ; Humans ; *Plants, Toxic ; Smoking/legislation & jurisprudence/*prevention & control ; Smoking Cessation ; *Tobacco ; Tobacco Industry/*legislation & jurisprudence ; Tobacco Smoke Pollution/prevention & control ; Tobacco, Smokeless ; 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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    Crystal structure of mouse CD1: An MHC-like fold with a large hydrophobic binding groove (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-18
    Description: CD1 represents a third lineage of antigen-presenting molecules that are distantly related to major histocompatibility complex (MHC) molecules in the immune system. The crystal structure of mouse CD1d1, corresponding to human CD1d, at 2.8 resolution shows that CD1 adopts an MHC fold that is more closely related to that of MHC class I than to that of MHC class II. The binding groove, although significantly narrower, is substantially larger because of increased depth and it has only two major pockets that are almost completely hydrophobic. The extreme hydrophobicity and shape of the binding site are consistent with observations that human CD1b and CD1c can present mycobacterial cell wall antigens, such as mycolic acid and lipoarabinomannans. However, mouse CD1d1 can present very hydrophobic peptides, but must do so in a very different way from MHC class Ia and class II molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zeng, Z -- Castano, A R -- Segelke, B W -- Stura, E A -- Peterson, P A -- Wilson, I A -- CA-58896/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):339-45.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and the Skaggs Institute for Chemical Biology at the Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9219685" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antigen Presentation ; Antigens, CD1/*chemistry/immunology/metabolism ; Binding Sites ; Crystallization ; Crystallography, X-Ray ; Glycolipids/chemistry/immunology/metabolism ; Histocompatibility Antigens Class I/chemistry ; Histocompatibility Antigens Class II/chemistry ; Humans ; Hydrogen Bonding ; Ligands ; Lipid Metabolism ; Lipids/chemistry/immunology ; Mice ; Models, Molecular ; *Protein Conformation ; *Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; T-Lymphocyte Subsets/immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Identification of a naturally occurring peroxidase-lipoxygenase fusion protein (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-26
    Description: A distant relative of catalase that is specialized for metabolism of a fatty acid hydroperoxide was identified. This heme peroxidase occurs in coral as part of a fusion protein, the other component of which is a lipoxygenase that forms the hydroperoxide substrate. The end product is an unstable epoxide (an allene oxide) that is a potential precursor of prostaglandin-like molecules. These results extend the known chemistry of catalase-like proteins and reveal a distinct type of enzymatic construct involved in the metabolism of polyunsaturated fatty acids.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koljak, R -- Boutaud, O -- Shieh, B H -- Samel, N -- Brash, A R -- GM49502/GM/NIGMS NIH HHS/ -- TW00404/TW/FIC NIH HHS/ -- New York, N.Y. -- Science. 1997 Sep 26;277(5334):1994-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232-6602, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9302294" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Arachidonic Acid/metabolism ; Binding Sites ; Catalase/chemistry ; Catalysis ; Cloning, Molecular ; Cnidaria/*enzymology/genetics ; Hydrogen Peroxide/metabolism ; *Intramolecular Oxidoreductases ; Isomerases/chemistry ; Lipoxygenase/*chemistry/genetics/isolation & purification/metabolism ; Molecular Sequence Data ; Peroxidase/*chemistry/genetics/isolation & purification/metabolism ; Peroxidases/*chemistry/isolation & purification/metabolism ; Recombinant Proteins/metabolism ; Sequence Homology, Amino Acid
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    Toroidal structure of lambda-exonuclease (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-20
    Description: Structure determination at 2.4 angstrom resolution shows that lambda-exonuclease consists of three subunits that form a toroid. The central channel is funnel shaped, tapering from an inner diameter of about 30 angstroms at the wider end to 15 angstroms at the narrow end. This is adequate to accommodate the DNA substrate and thus provides a structural basis for the ability of the enzyme to sequentially hydrolyze thousands of nucleotides in a highly processive manner. The results also suggest the locations of the active sites and the constraints that limit cleavage to a single strand.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kovall, R -- Matthews, B W -- GM20066/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Sep 19;277(5333):1824-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology, Howard Hughes Medical Institute, and Department of Physics, University of Oregon, Eugene, OR 97403, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9295273" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteriophage lambda/enzymology ; Binding Sites ; Crystallography, X-Ray ; DNA/genetics/*metabolism ; DNA, Single-Stranded/genetics/*metabolism ; DNA, Viral/genetics/metabolism ; Evolution, Molecular ; Exodeoxyribonucleases/*chemistry/genetics/metabolism ; Hydrolysis ; Magnesium/metabolism ; Models, Molecular ; *Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Recombination, Genetic ; Viral Proteins
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Corn genome initiative (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bevan, M W -- New York, N.Y. -- Science. 1997 Aug 15;277(5328):885-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9281065" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*genetics ; European Union ; *Genome, Plant ; International Cooperation ; Japan ; *Sequence Analysis, DNA ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The civil commitment of sex offenders (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zonana, H -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1248-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Yale Law School, New Haven, CT 06519, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411753" target="_blank"〉PubMed〈/a〉
    Keywords: Antisocial Personality Disorder/psychology/therapy ; Commitment of Mentally Ill/*legislation & jurisprudence ; Humans ; *Mental Disorders/psychology/therapy ; Paraphilic Disorders/psychology/therapy ; Sex Offenses/*legislation & jurisprudence/prevention & control/psychology ; United States
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    Privatization of a journal (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boullin, J M -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):297-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9518352" target="_blank"〉PubMed〈/a〉
    Keywords: Computer Communication Networks ; Costs and Cost Analysis ; Great Britain ; National Institutes of Health (U.S.) ; *Neoplasms ; *Periodicals as Topic/economics ; Private Sector ; *Publishing/economics ; United States ; Universities
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    Cross-language analysis of phonetic units in language addressed to infants (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-01
    Description: In the early months of life, infants acquire information about the phonetic properties of their native language simply by listening to adults speak. The acoustic properties of phonetic units in language input to young infants in the United States, Russia, and Sweden were examined. In all three countries, mothers addressing their infants produced acoustically more extreme vowels than they did when addressing adults, resulting in a "stretching" of vowel space. The findings show that language input to infants provides exceptionally well-specified information about the linguistic units that form the building blocks for words.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kuhl, P K -- Andruski, J E -- Chistovich, I A -- Chistovich, L A -- Kozhevnikova, E V -- Ryskina, V L -- Stolyarova, E I -- Sundberg, U -- Lacerda, F -- DC 00520/DC/NIDCD NIH HHS/ -- New York, N.Y. -- Science. 1997 Aug 1;277(5326):684-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Speech and Hearing Sciences, University of Washington, Box 357920, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9235890" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Female ; Humans ; Infant ; *Language Development ; Mothers ; *Phonetics ; Russia ; Speech Acoustics ; *Speech Perception ; Sweden ; United States
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    Crystal structure of protein farnesyltransferase at 2.25 angstrom resolution (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-21
    Description: Protein farnesyltransferase (FTase) catalyzes the carboxyl-terminal lipidation of Ras and several other cellular signal transduction proteins. The essential nature of this modification for proper function of these proteins has led to the emergence of FTase as a target for the development of new anticancer therapy. Inhibition of this enzyme suppresses the transformed phenotype in cultured cells and causes tumor regression in animal models. The crystal structure of heterodimeric mammalian FTase was determined at 2.25 angstrom resolution. The structure shows a combination of two unusual domains: a crescent-shaped seven-helical hairpin domain and an alpha-alpha barrel domain. The active site is formed by two clefts that intersect at a bound zinc ion. One cleft contains a nine-residue peptide that may mimic the binding of the Ras substrate; the other cleft is lined with highly conserved aromatic residues appropriate for binding the farnesyl isoprenoid with required specificity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, H W -- Boduluri, S R -- Moomaw, J F -- Casey, P J -- Beese, L S -- GM46372/GM/NIGMS NIH HHS/ -- GM52382/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 21;275(5307):1800-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9065406" target="_blank"〉PubMed〈/a〉
    Keywords: *Alkyl and Aryl Transferases ; Binding Sites ; Crystallography, X-Ray ; Dimerization ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Mutation ; *Protein Conformation ; Protein Structure, Secondary ; Proteins/metabolism ; Sequence Alignment ; Transferases/*chemistry/genetics/metabolism ; Zinc/metabolism
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    Microbiology's scarred revolutionary (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morell, V -- New York, N.Y. -- Science. 1997 May 2;276(5313):699-702.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9157549" target="_blank"〉PubMed〈/a〉
    Keywords: Archaea/*classification/genetics/physiology ; Bacteria/*classification/genetics ; Base Sequence ; Biological Evolution ; History, 20th Century ; Origin of Life ; *Phylogeny ; RNA, Bacterial/genetics ; RNA, Ribosomal/genetics ; Sequence Analysis, RNA ; Temperature ; United States
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    The telomerase picture fills in (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1997 Apr 25;276(5312):528-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9148410" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Catalysis ; DNA-Binding Proteins ; Euplotes/enzymology ; Fungal Proteins/*chemistry/genetics/isolation & purification/metabolism ; Genes, Fungal ; *Rna ; RNA-Directed DNA Polymerase/*chemistry/genetics/isolation & ; purification/metabolism ; Saccharomyces cerevisiae/enzymology/genetics ; Telomerase/*chemistry/genetics/isolation & purification/metabolism
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    The Ras-RasGAP complex: structural basis for GTPase activation and its loss in oncogenic Ras mutants (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-18
    Description: The three-dimensional structure of the complex between human H-Ras bound to guanosine diphosphate and the guanosine triphosphatase (GTPase)-activating domain of the human GTPase-activating protein p120GAP (GAP-334) in the presence of aluminum fluoride was solved at a resolution of 2.5 angstroms. The structure shows the partly hydrophilic and partly hydrophobic nature of the communication between the two molecules, which explains the sensitivity of the interaction toward both salts and lipids. An arginine side chain (arginine-789) of GAP-334 is supplied into the active site of Ras to neutralize developing charges in the transition state. The switch II region of Ras is stabilized by GAP-334, thus allowing glutamine-61 of Ras, mutation of which activates the oncogenic potential, to participate in catalysis. The structural arrangement in the active site is consistent with a mostly associative mechanism of phosphoryl transfer and provides an explanation for the activation of Ras by glycine-12 and glutamine-61 mutations. Glycine-12 in the transition state mimic is within van der Waals distance of both arginine-789 of GAP-334 and glutamine-61 of Ras, and even its mutation to alanine would disturb the arrangements of residues in the transition state.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scheffzek, K -- Ahmadian, M R -- Kabsch, W -- Wiesmuller, L -- Lautwein, A -- Schmitz, F -- Wittinghofer, A -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):333-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institut fur molekulare Physiologie, Abteilung Strukturelle Biologie, Rheinlanddamm 201, 44139 Dortmund, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9219684" target="_blank"〉PubMed〈/a〉
    Keywords: Aluminum Compounds/chemistry/metabolism ; Amino Acid Sequence ; Binding Sites ; Catalysis ; Cell Transformation, Neoplastic ; Crystallography, X-Ray ; Enzyme Activation ; Fluorides/chemistry/metabolism ; GTP Phosphohydrolases/chemistry/*metabolism ; GTP-Binding Proteins/chemistry/metabolism ; GTPase-Activating Proteins ; Guanosine Diphosphate/metabolism ; Guanosine Triphosphate/metabolism ; Humans ; Models, Molecular ; Molecular Sequence Data ; Mutation ; *Protein Conformation ; Protein Structure, Secondary ; Proteins/*chemistry/*metabolism ; Signal Transduction ; ras GTPase-Activating Proteins ; ras Proteins/chemistry/genetics/*metabolism
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  • 50
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    How thiamine diphosphate is activated in enzymes (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-03
    Description: The controversial question of how thiamine diphosphate, the biologically active form of vitamin B1, is activated in different enzymes has been addressed. Activation of the coenzyme was studied by measuring thermodynamics and kinetics of deprotonation at the carbon in the 2-position (C2) of thiamine diphosphate in the enzymes pyruvate decarboxylase and transketolase by use of nuclear magnetic resonance spectroscopy, proton/deuterium exchange, coenzyme analogs, and site-specific mutant enzymes. Interaction of a glutamate with the nitrogen in the 1'-position in the pyrimidine ring activated the 4'-amino group to act as an efficient proton acceptor for the C2 proton. The protein component accelerated the deprotonation of the C2 atom by several orders of magnitude, beyond the rate of the overall enzyme reaction. Therefore, the earlier proposed concerted mechanism or stabilization of a C2 carbanion can be excluded.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kern, D -- Kern, G -- Neef, H -- Tittmann, K -- Killenberg-Jabs, M -- Wikner, C -- Schneider, G -- Hubner, G -- New York, N.Y. -- Science. 1997 Jan 3;275(5296):67-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Biochemie, Martin-Luther Universitat Halle-Wittenberg, Kurt-Mothes-Strasse 3, D-06120 Halle, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8974393" target="_blank"〉PubMed〈/a〉
    Keywords: Allosteric Regulation ; Binding Sites ; Catalysis ; Deuterium/metabolism ; Enzyme Activation ; Glutamic Acid/metabolism ; Hydrogen-Ion Concentration ; Kinetics ; Magnetic Resonance Spectroscopy ; Mutagenesis, Site-Directed ; Protons ; Pyruvate Decarboxylase/chemistry/*metabolism ; Pyruvates/metabolism ; Thermodynamics ; Thiamine Pyrophosphate/chemistry/*metabolism ; Transketolase/chemistry/*metabolism
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    Direct measurement of a tethered ligand-receptor interaction potential (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-07
    Description: Many biological recognition interactions involve ligands and receptors that are tethered rather than rigidly bound on a cell surface. A surface forces apparatus was used to directly measure the force-distance interaction between a polymer-tethered ligand and its receptor. At separations near the fully extended tether length, the ligands rapidly lock onto their binding sites, pulling the ligand and receptor together. The measured interaction potential and its dynamics can be modeled with standard theories of polymer and colloidal interactions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wong, J Y -- Kuhl, T L -- Israelachvili, J N -- Mullah, N -- Zalipsky, S -- GM 47334/GM/NIGMS NIH HHS/ -- GM17876/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Feb 7;275(5301):820-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical Engineering, University of California, Santa Barbara, CA 93106, USA. jywong@engineering.ucsb.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9012346" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/chemistry/*metabolism ; Binding Sites ; Biotin/chemistry/*metabolism ; Chemistry, Physical ; Ligands ; Lipid Bilayers ; Mathematics ; Models, Chemical ; Molecular Conformation ; Physicochemical Phenomena ; Polyethylene Glycols/chemistry/*metabolism ; Streptavidin
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    Solution structure of 3-oxo-delta5-steroid isomerase (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-18
    Description: The three-dimensional structure of the enzyme 3-oxo-delta5-steroid isomerase (E.C. 5.3.3.1), a 28-kilodalton symmetrical dimer, was solved by multidimensional heteronuclear magnetic resonance spectroscopy. The two independently folded monomers pack together by means of extensive hydrophobic and electrostatic interactions. Each monomer comprises three alpha helices and a six-strand mixed beta-pleated sheet arranged to form a deep hydrophobic cavity. Catalytically important residues Tyr14 (general acid) and Asp38 (general base) are located near the bottom of the cavity and positioned as expected from mechanistic hypotheses. An unexpected acid group (Asp99) is also located in the active site adjacent to Tyr14, and kinetic and binding studies of the Asp99 to Ala mutant demonstrate that Asp99 contributes to catalysis by stabilizing the intermediate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Z R -- Ebrahimian, S -- Zawrotny, M E -- Thornburg, L D -- Perez-Alvarado, G C -- Brothers, P -- Pollack, R M -- Summers, M F -- GM38155/GM/NIGMS NIH HHS/ -- GM49082/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Apr 18;276(5311):415-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Chemistry and Biochemistry, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9103200" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Androstenedione/metabolism ; Binding Sites ; Dimerization ; Estradiol/metabolism ; Hydrogen Bonding ; Magnetic Resonance Spectroscopy ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; *Protein Conformation ; Protein Structure, Secondary ; Solutions ; Steroid Isomerases/*chemistry/genetics/metabolism
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    Src structure crystallizes 20 years of oncogene research (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Featherstone, C -- New York, N.Y. -- Science. 1997 Feb 21;275(5303):1066.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9054006" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Crystallography, X-Ray ; Models, Molecular ; Phosphorylation ; *Protein Conformation ; Protein Structure, Secondary ; Protein-Tyrosine Kinases/chemistry ; Proto-Oncogene Proteins/chemistry ; Proto-Oncogene Proteins c-hck ; Proto-Oncogene Proteins pp60(c-src)/*chemistry/metabolism ; Tyrosine/chemistry/metabolism ; *src Homology Domains
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    Researchers seek new weapon against the flu (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Service, R F -- New York, N.Y. -- Science. 1997 Feb 7;275(5301):756-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9036534" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Oral ; Amines/chemistry/metabolism/*therapeutic use ; Animals ; Antiviral Agents/chemistry/metabolism/*therapeutic use ; Binding Sites ; Clinical Trials as Topic ; Drug Design ; Drug Evaluation, Preclinical ; Humans ; Influenza, Human/*drug therapy ; Membrane Proteins/*genetics/physiology ; Molecular Structure ; Neuraminidase/*antagonists & inhibitors/chemistry/metabolism ; Orthomyxoviridae/*drug effects/enzymology ; Oseltamivir ; *Plant Proteins ; Protein Conformation
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    A range of research-based pharmacotherapies for addiction (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-06
    Description: Modern approaches to the treatment of addiction have been influenced by several important factors. These include advances in our understanding of the nature of addiction based on longitudinal studies, and progress in elucidating the biological underpinnings of addictive behavior. In addition, changes in the system for delivery of services have begun to shape the way that addiction is treated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Brien, C P -- P60-05186/PHS HHS/ -- New York, N.Y. -- Science. 1997 Oct 3;278(5335):66-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Pennsylvania VA Medical Center, 3900 Chestnut Street, Philadelphia, PA 19104-6178, USA. obrien@research.trc.upenn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9311929" target="_blank"〉PubMed〈/a〉
    Keywords: Alcoholism/drug therapy ; Animals ; Behavior, Addictive ; Clinical Trials as Topic ; Delivery of Health Care ; Humans ; Narcotic Antagonists/pharmacology/therapeutic use ; Receptors, Opioid/agonists ; Recurrence ; Substance Withdrawal Syndrome/drug therapy ; Substance-Related Disorders/*drug therapy/prevention & control/psychology ; United States ; Vaccines
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    An Fe2IVO2 diamond core structure for the key intermediate Q of methane monooxygenase (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-24
    Description: A new paradigm for oxygen activation is required for enzymes such as methane monooxygenase (MMO), for which catalysis depends on a nonheme diiron center instead of the more familiar Fe-porphyrin cofactor. On the basis of precedents from synthetic diiron complexes, a high-valent Fe2(micro-O)2 diamond core has been proposed as the key oxidizing species for MMO and other nonheme diiron enzymes such as ribonucleotide reductase and fatty acid desaturase. The presence of a single short Fe-O bond (1.77 angstroms) per Fe atom and an Fe-Fe distance of 2.46 angstroms in MMO reaction intermediate Q, obtained from extended x-ray absorption fine structure and Mossbauer analysis, provides spectroscopic evidence that the diiron center in Q has an Fe2IVO2 diamond core.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shu, L -- Nesheim, J C -- Kauffmann, K -- Munck, E -- Lipscomb, J D -- Que, L Jr -- GM-08277/GM/NIGMS NIH HHS/ -- GM-22701/GM/NIGMS NIH HHS/ -- GM-40466/GM/NIGMS NIH HHS/ -- R01 GM040466/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Jan 24;275(5299):515-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, MN 55455, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999792" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Catalysis ; Crystallography, X-Ray ; Dimerization ; Gram-Negative Aerobic Bacteria/*enzymology ; Iron/*chemistry ; Molecular Structure ; Oxidation-Reduction ; Oxygen/*chemistry ; Oxygenases/*chemistry/metabolism ; Spectroscopy, Mossbauer ; Spectrum Analysis
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    Modulation of hepatic gene expression by hepatocyte nuclear factor 1 (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-04
    Description: Hepatocyte nuclear factors 1 and 4 (HNF-1 and HNF-4) are liver-enriched transcription factors that function in the regulation of several liver-specific genes. HNF-1 activates genes containing promoters with HNF-1 binding sites. However, this factor negatively regulates its own expression and that of other HNF-4-dependent genes that lack HNF-1 binding sites in their promoter region. This repression is exerted by a direct interaction of HNF-1 with AF2, the main activation domain of HNF-4. The dual functions of gene activation and repression suggest that HNF-1 is a global regulator of the transcriptional network involved in the maintenance of hepatocyte-specific phenotype.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ktistaki, E -- Talianidis, I -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):109-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Post Office Box 1527, 711 10 Heraklion, Crete, Greece.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9204893" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Basic Helix-Loop-Helix Leucine Zipper Transcription Factors ; Binding Sites ; COS Cells ; *DNA-Binding Proteins ; *Gene Expression Regulation ; Hepatocyte Nuclear Factor 1 ; Hepatocyte Nuclear Factor 1-alpha ; Hepatocyte Nuclear Factor 1-beta ; Hepatocyte Nuclear Factor 4 ; Humans ; Liver/cytology/*metabolism ; Nuclear Proteins/genetics/metabolism ; Phosphoproteins/genetics/metabolism ; Promoter Regions, Genetic ; RNA, Messenger/genetics/metabolism ; Recombinant Fusion Proteins/metabolism ; Transcription Factors/*genetics/*metabolism ; Transcriptional Activation ; Tumor Cells, Cultured
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    Privatization of a journal (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chappell, J -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):298-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9518353" target="_blank"〉PubMed〈/a〉
    Keywords: Copyright ; Costs and Cost Analysis ; Great Britain ; National Institutes of Health (U.S.) ; *Neoplasms ; *Periodicals as Topic/economics/legislation & jurisprudence ; Private Sector ; *Publishing/economics/legislation & jurisprudence ; United States ; Universities
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    Proposed air pollutant standards (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abelson, P H -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):15.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9229761" target="_blank"〉PubMed〈/a〉
    Keywords: Air/*standards ; Air Pollutants/*analysis ; Environmental Monitoring ; Humans ; Maximum Allowable Concentration ; Ozone/*analysis ; United States ; United States Environmental Protection Agency
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    Companies rush to patent DNA (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1997 Feb 7;275(5301):780-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9036542" target="_blank"〉PubMed〈/a〉
    Keywords: *Dna ; DNA, Complementary ; Databases, Nucleic Acid ; Federal Government ; *Genes ; Genetic Research ; *Genome, Human ; Humans ; Information Dissemination ; National Institutes of Health (U.S.)/legislation & jurisprudence ; *Patents as Topic ; United States
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    The breast-screening brawl (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taubes, G -- New York, N.Y. -- Science. 1997 Feb 21;275(5303):1056-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9054004" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Age Factors ; Aged ; Breast Neoplasms/*mortality/prevention & control/radiography ; Consensus Development Conferences, NIH as Topic ; Female ; Humans ; *Mammography/statistics & numerical data ; *Mass Screening/statistics & numerical data ; Middle Aged ; Randomized Controlled Trials as Topic ; United States
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    Corn genome pops out of the pack (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):1960-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9221492" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/genetics ; DNA, Complementary/genetics ; DNA, Plant/genetics ; Databases, Factual ; Financing, Government ; Gene Expression ; *Genome, Plant ; International Cooperation ; Oryza/genetics ; Research Support as Topic ; Sequence Analysis, DNA ; United States ; Zea mays/*genetics
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    SV40 and human cancer (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hayflick, L -- New York, N.Y. -- Science. 1997 Apr 18;276(5311):337-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9139350" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; *Cell Transformation, Neoplastic ; *Cell Transformation, Viral ; Haplorhini ; Humans ; Poliovirus/growth & development ; *Poliovirus Vaccine, Inactivated ; Simian virus 40/*pathogenicity ; United States ; United States Food and Drug Administration ; Virus Cultivation
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    The rise and fall of Project SIDA (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1997 Nov 28;278(5343):1565-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411779" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome/epidemiology/immunology/therapy ; Belgium ; Budgets ; Centers for Disease Control and Prevention (U.S.) ; Democratic Republic of the Congo ; Humans ; International Cooperation ; National Institutes of Health (U.S.) ; *Research ; Research Support as Topic ; United States
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    India applauds U.S. patent reversal (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- Bagla, P -- New York, N.Y. -- Science. 1997 Sep 5;277(5331):1429.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9304208" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Curcumin/*therapeutic use ; Humans ; India ; *Patents as Topic ; *Plants, Medicinal ; United States ; Wound Healing
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    Genetic information and the workplace: legislative approaches and policy changes (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rothenberg, K -- Fuller, B -- Rothstein, M -- Duster, T -- Ellis Kahn, M J -- Cunningham, R -- Fine, B -- Hudson, K -- King, M C -- Murphy, P -- Swergold, G -- Collins, F -- New York, N.Y. -- Science. 1997 Mar 21;275(5307):1755-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Law and Health Care Program, University of Maryland School of Law, 500 West Baltimore Street, Baltimore, MD 21201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122681" target="_blank"〉PubMed〈/a〉
    Keywords: Confidentiality ; Disclosure ; Employment/*legislation & jurisprudence ; Federal Government ; Genetic Diseases, Inborn ; *Genetic Privacy ; *Genetic Testing ; *Genetics, Medical ; *Government Regulation ; Humans ; Insurance Selection Bias ; Insurance, Health/legislation & jurisprudence ; *Prejudice ; *Public Policy ; United States
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    Regulation of protein phosphatase 2A by direct interaction with casein kinase 2alpha (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-09
    Description: Timely deactivation of kinase cascades is crucial to the normal control of cell signaling and is partly accomplished by protein phosphatase 2A (PP2A). The catalytic (alpha) subunit of the serine-threonine kinase casein kinase 2 (CK2) bound to PP2A in vitro and in mitogen-starved cells; binding required the integrity of a sequence motif common to CK2alpha and SV40 small t antigen. Overexpression of CK2alpha resulted in deactivation of mitogen-activated protein kinase kinase (MEK) and suppression of cell growth. Moreover, CK2alpha inhibited the transforming activity of oncogenic Ras, but not that of constitutively activated MEK. Thus, CK2alpha may regulate the deactivation of the mitogen-activated protein kinase pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heriche, J K -- Lebrin, F -- Rabilloud, T -- Leroy, D -- Chambaz, E M -- Goldberg, Y -- New York, N.Y. -- Science. 1997 May 9;276(5314):952-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Commissariat a l'Energie Atomique, Departement de Biologie Moleculaire et Structurale, Laboratoire de Biochimie des Regulations Cellulaires Endocrines, Unite 244, F-38054 Grenoble Cedex 9, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9139659" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Amino Acid Sequence ; Animals ; Antigens, Polyomavirus Transforming ; Binding Sites ; Casein Kinase II ; Cell Division ; Cell Transformation, Neoplastic ; MAP Kinase Kinase 1 ; Mice ; *Mitogen-Activated Protein Kinase Kinases ; Mutation ; Okadaic Acid/pharmacology ; Phosphoprotein Phosphatases/*metabolism ; Phosphorylation ; Platelet-Derived Growth Factor/pharmacology ; Protein Phosphatase 2 ; Protein-Serine-Threonine Kinases/*metabolism/pharmacology ; Protein-Tyrosine Kinases/metabolism/pharmacology ; Recombinant Fusion Proteins/metabolism ; Transfection ; ras Proteins/pharmacology
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    AIDS: a justifiable share (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1997 Apr 18;276(5311):345.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9139353" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome ; *Budgets ; Financing, Government ; Humans ; National Institutes of Health (U.S.)/*economics ; *Research Support as Topic ; United States
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    The costs of animal research: origins and options (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cork, L C -- Clarkson, T B -- Jacoby, R O -- Gaertner, D J -- Leary, S L -- Linn, J M -- Pakes, S P -- Ringler, D H -- Strandberg, J D -- Swindle, M M -- New York, N.Y. -- Science. 1997 May 2;276(5313):758-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Comparative Medicine, 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/9157554" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Welfare ; Animals ; *Animals, Laboratory ; Costs and Cost Analysis ; Financing, Government ; Laboratory Animal Science/*economics/education ; National Institutes of Health (U.S.)/economics ; Research/*economics ; *Research Support as Topic ; United States ; Veterinary Medicine/economics
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    The mouse that prompted a roar (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):24-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9229765" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteriophage P1/genetics ; DNA, Complementary ; Gene Expression ; *Gene Targeting ; Genetic Engineering/*methods ; Integrases/genetics ; Mice ; *Mice, Transgenic ; National Institutes of Health (U.S.) ; *Patents as Topic ; Polymerase Chain Reaction ; United States ; *Viral Proteins
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Last-minute deal give NIH 7.1% raise (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1218.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411744" target="_blank"〉PubMed〈/a〉
    Keywords: *Budgets ; Financing, Government ; Human Genome Project ; Humans ; National Institutes of Health (U.S.)/*economics ; Parkinson Disease ; Research Support as Topic ; United States
    Print ISSN: 0036-8075
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    The cis-trans paradox of integrase (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jayaram, M -- New York, N.Y. -- Science. 1997 Apr 4;276(5309):49-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, University of Texas at Austin, Austin, TX 78712, USA. jayaram@almach.cc.utexas.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122709" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteriophage lambda/*enzymology ; Binding Sites ; Crystallography, X-Ray ; DNA/*metabolism ; DNA Nucleotidyltransferases/chemistry/metabolism ; DNA, Circular/metabolism ; Integrases/*chemistry/metabolism ; Models, Molecular ; *Protein Conformation ; Recombinases ; *Recombination, Genetic ; Tyrosine/metabolism ; Virus Integration
    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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  • 73
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    A bitter battle over insulin gene (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1997 Aug 22;277(5329):1028-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9289846" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; California ; *Cloning, Molecular ; DNA, Recombinant ; Drug Industry ; *Genetic Research ; *Genetic Vectors ; Guideline Adherence/legislation & jurisprudence ; Humans ; Insulin/*genetics ; National Institutes of Health (U.S.) ; *Patents as Topic ; *Plasmids ; Rats ; Recombinant Proteins ; Scientific Misconduct/*legislation & jurisprudence ; 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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  • 74
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    Bimolecular exon ligation by the human spliceosome (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-13
    Description: Intron excision is an essential step in eukaryotic gene expression, but the molecular mechanisms by which the spliceosome accurately identifies splice sites in nuclear precursors to messenger RNAs (pre-mRNAs) are not well understood. A bimolecular assay for the second step of splicing has now revealed that exon ligation by the human spliceosome does not require covalent attachment of a 3' splice site to the branch site. Furthermore, accurate definition of the 3' splice site in this system is independent of either a covalently attached polypyrimidine tract or specific 3' exon sequences. Rather, in this system 3' splice site selection apparently occurs with a 5' --〉 3' directionality.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, K -- Moore, M J -- GM53007/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Jun 13;276(5319):1712-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉W. M. Keck Institute for Cellular Visualization, Department of Biochemistry, Brandeis University, Waltham, MA 02254, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9180084" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviridae/genetics ; Base Sequence ; Binding Sites ; *Exons ; Humans ; Introns ; Molecular Sequence Data ; Nucleic Acid Conformation ; RNA Precursors/genetics/*metabolism ; *RNA Splicing ; Spliceosomes/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 75
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    Chimp retirement plan proposed (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roush, W -- New York, N.Y. -- Science. 1997 Jul 25;277(5325):471.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9254416" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome ; *Animal Experimentation ; *Animal Welfare ; Animals ; *Animals, Laboratory ; Costs and Cost Analysis ; Federal Government ; Housing, Animal ; National Institutes of Health (U.S.) ; *Pan troglodytes ; Research ; United States
    Print ISSN: 0036-8075
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  • 76
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    Crystal structure of methyl-coenzyme M reductase: the key enzyme of biological methane formation (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: Methyl-coenzyme M reductase (MCR), the enzyme responsible for the microbial formation of methane, is a 300-kilodalton protein organized as a hexamer in an alpha2beta2gamma2 arrangement. The crystal structure of the enzyme from Methanobacterium thermoautotrophicum, determined at 1.45 angstrom resolution for the inactive enzyme state MCRox1-silent, reveals that two molecules of the nickel porphinoid coenzyme F430 are embedded between the subunits alpha, alpha', beta, and gamma and alpha', alpha, beta', and gamma', forming two identical active sites. Each site is accessible for the substrate methyl-coenzyme M through a narrow channel locked after binding of the second substrate coenzyme B. Together with a second structurally characterized enzyme state (MCRsilent) containing the heterodisulfide of coenzymes M and B, a reaction mechanism is proposed that uses a radical intermediate and a nickel organic compound.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ermler, U -- Grabarse, W -- Shima, S -- Goubeaud, M -- Thauer, R K -- New York, N.Y. -- Science. 1997 Nov 21;278(5342):1457-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institut fur Biophysik, Heinrich-Hoffmann-Strabetae 7, 60528 Frankfurt, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9367957" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Catalysis ; Coenzymes/chemistry/metabolism ; Crystallography, X-Ray ; Disulfides/chemistry/metabolism ; Hydrogen/metabolism ; Hydrogen Bonding ; Ligands ; Mesna/analogs & derivatives/chemistry/metabolism ; Metalloporphyrins/chemistry/metabolism ; Methane/*metabolism ; Methanobacterium/*enzymology ; Models, Molecular ; Nickel/chemistry/metabolism ; Oxidation-Reduction ; Oxidoreductases/*chemistry/*metabolism ; Phosphothreonine/analogs & derivatives/chemistry/metabolism ; *Protein Conformation ; Protein Folding ; Protein Structure, Secondary
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    South wants place at table in new collaborative effort (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bagla, P -- New York, N.Y. -- Science. 1997 Sep 26;277(5334):1918-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9333942" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Asia, Western ; Budgets ; Developing Countries ; Europe ; Humans ; *International Cooperation ; *Malaria ; National Institutes of Health (U.S.) ; *Research ; Research Support as Topic ; United States ; World Health Organization
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    Research and regulation at FDA (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berkower, I -- New York, N.Y. -- Science. 1997 Apr 11;276(5310):183-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9132937" target="_blank"〉PubMed〈/a〉
    Keywords: Drug Approval ; *Research ; United States ; *United States Food and Drug Administration
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    ORI's self-assessment: a batting average of .920? (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Friedly, J -- New York, N.Y. -- Science. 1997 Feb 28;275(5304):1255.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9064778" target="_blank"〉PubMed〈/a〉
    Keywords: Biomedical Research ; Federal Government ; *Government Regulation ; *Scientific Misconduct ; United States ; *United States Office of Research Integrity
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 80
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    Privatization of a journal (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Safran, C -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):299-300.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9518354" target="_blank"〉PubMed〈/a〉
    Keywords: Copyright/*legislation & jurisprudence ; Great Britain ; National Institutes of Health (U.S.) ; Periodicals as Topic/*legislation & jurisprudence ; Private Sector ; Publishing/*legislation & jurisprudence ; United States ; Universities
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  • 81
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    No misconduct in 'gay gene' study (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, Jocelyn -- New York, N.Y. -- Science. 1997 Feb 28;275(5304):1251.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11644902" target="_blank"〉PubMed〈/a〉
    Keywords: Federal Government ; Genetic Research ; Genetics ; *Genetics, Behavioral ; Government ; *Homosexuality ; Humans ; Men ; Public Policy ; Research Personnel ; *Scientific Misconduct ; United States ; *United States Office of Research Integrity
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  • 82
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    Consensus on African research projects (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, N -- New York, N.Y. -- Science. 1997 Nov 21;278(5342):1393-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411759" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; Antimalarials/therapeutic use ; Genome, Protozoan ; Humans ; *International Cooperation ; *Malaria/drug therapy/parasitology ; National Institutes of Health (U.S.) ; Plasmodium falciparum/genetics ; *Research ; Research Support as Topic ; United States
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  • 83
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    The 'Gallo case': Popovic strikes back (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 1997 Feb 14;275(5302):920-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9053992" target="_blank"〉PubMed〈/a〉
    Keywords: Biomedical Research ; Compensation and Redress ; Federal Government ; *Government Regulation ; History, 20th Century ; Scientific Misconduct/*legislation & jurisprudence ; United States ; United States Office of Research Integrity/*legislation & jurisprudence
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    Global initiative takes shape slowly (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallagher, R -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):309.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9518357" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Antimalarials ; Drug Industry ; Europe ; Humans ; *International Cooperation ; *Malaria/drug therapy ; National Institutes of Health (U.S.) ; *Peer Review, Research ; *Research Support as Topic ; United Nations ; United States
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  • 85
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    AIDS: the process of discovery (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallo, R -- New York, N.Y. -- Science. 1997 Jan 10;275(5297):141; author reply 142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999538" target="_blank"〉PubMed〈/a〉
    Keywords: Chemokines/*physiology ; HIV/*physiology ; Humans ; Italy ; National Institutes of Health (U.S.) ; Receptors, Cytokine/*physiology ; Receptors, HIV/*physiology ; United States
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  • 86
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    Synaptic vesicle endocytosis impaired by disruption of dynamin-SH3 domain interactions (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-11
    Description: The proline-rich COOH-terminal region of dynamin binds various Src homology 3 (SH3) domain-containing proteins, but the physiological role of these interactions is unknown. In living nerve terminals, the function of the interaction with SH3 domains was examined. Amphiphysin contains an SH3 domain and is a major dynamin binding partner at the synapse. Microinjection of amphiphysin's SH3 domain or of a dynamin peptide containing the SH3 binding site inhibited synaptic vesicle endocytosis at the stage of invaginated clathrin-coated pits, which resulted in an activity-dependent distortion of the synaptic architecture and a depression of transmitter release. These findings demonstrate that SH3-mediated interactions are required for dynamin function and support an essential role of clathrin-mediated endocytosis in synaptic vesicle recycling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shupliakov, O -- Low, P -- Grabs, D -- Gad, H -- Chen, H -- David, C -- Takei, K -- De Camilli, P -- Brodin, L -- CA46128/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Apr 11;276(5310):259-63.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Nobel Institute for Neurophysiology, Department of Neuroscience, Karolinska Institutet, S-171 77 Stockholm, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9092476" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Cell Membrane/ultrastructure ; Coated Pits, Cell-Membrane/ultrastructure ; Dynamins ; *Endocytosis ; GTP Phosphohydrolases/*metabolism ; Humans ; Lampreys ; Microscopy, Electron ; Molecular Sequence Data ; Nerve Tissue Proteins/chemistry/*metabolism ; Proline/chemistry ; Recombinant Fusion Proteins/metabolism ; Synapses/metabolism/ultrastructure ; Synaptic Transmission ; Synaptic Vesicles/*metabolism/ultrastructure ; *src Homology Domains
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    Xenotransplant risks to be aired at forum (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, Jocelyn -- New York, N.Y. -- Science. 1997 Feb 7;275(5301):743.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11644894" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Attitude ; Communicable Diseases ; Federal Government ; Government ; Guidelines as Topic ; Humans ; *National Institutes of Health (U.S.) ; *Organ Transplantation ; Primates ; Public Health ; *Public Policy ; Research Personnel ; Risk ; Swine ; Transplantation ; *Transplantation, Heterologous ; United States ; *United States Food and Drug Administration
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  • 88
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    Bioethics panel: big agenda, small budget (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, Jocelyn -- New York, N.Y. -- Science. 1997 Jan 24;275(5299):467.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11644892" target="_blank"〉PubMed〈/a〉
    Keywords: *Advisory Committees ; Federal Government ; *Financing, Government ; Genetic Research ; Genetics ; Government ; Human Experimentation ; *Public Policy ; United States
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  • 89
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    Continuous innovation in health (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shine, K I -- New York, N.Y. -- Science. 1997 Jan 3;275(5296):9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999537" target="_blank"〉PubMed〈/a〉
    Keywords: *Academic Medical Centers/economics/organization & administration ; Budgets ; National Institutes of Health (U.S.)/economics ; *Research/economics ; *Research Support as Topic ; United States
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  • 90
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    $1.6 million fraud award overturned (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 1997 Jan 31;275(5300):610.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9019815" target="_blank"〉PubMed〈/a〉
    Keywords: Alabama ; Cytomegalovirus Infections ; Humans ; Infant, Low Birth Weight ; Infant, Newborn ; National Institutes of Health (U.S.) ; Research Support as Topic ; Scientific Misconduct/*legislation & jurisprudence ; United States ; Universities/*legislation & jurisprudence
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  • 91
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    Structure of the carboxyl-terminal dimerization domain of the HIV-1 capsid protein (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-11-05
    Description: The carboxyl-terminal domain, residues 146 to 231, of the human immunodeficiency virus-1 (HIV-1) capsid protein [CA(146-231)] is required for capsid dimerization and viral assembly. This domain contains a stretch of 20 residues, called the major homology region (MHR), which is conserved across retroviruses and is essential for viral assembly, maturation, and infectivity. The crystal structures of CA(146-231) and CA(151-231) reveal that the globular domain is composed of four helices and an extended amino-terminal strand. CA(146-231) dimerizes through parallel packing of helix 2 across a dyad. The MHR is distinct from the dimer interface and instead forms an intricate hydrogen-bonding network that interconnects strand 1 and helices 1 and 2. Alignment of the CA(146-231) dimer with the crystal structure of the capsid amino-terminal domain provides a model for the intact protein and extends models for assembly of the central conical core of HIV-1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gamble, T R -- Yoo, S -- Vajdos, F F -- von Schwedler, U K -- Worthylake, D K -- Wang, H -- McCutcheon, J P -- Sundquist, W I -- Hill, C P -- R01 AI40333/AI/NIAID NIH HHS/ -- R01 AI43036/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1997 Oct 31;278(5339):849-53.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Utah, Salt Lake City, UT 84132, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9346481" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Capsid/*chemistry/genetics ; Cell Line ; Cloning, Molecular ; Cloning, Organism ; Crystallography, X-Ray ; Dimerization ; HIV-1/*chemistry/genetics/physiology ; Humans ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Peptidylprolyl Isomerase/chemistry ; *Protein Conformation ; Virus Replication
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 92
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    The complete genome sequence of Escherichia coli K-12 (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-05
    Description: The 4,639,221-base pair sequence of Escherichia coli K-12 is presented. Of 4288 protein-coding genes annotated, 38 percent have no attributed function. Comparison with five other sequenced microbes reveals ubiquitous as well as narrowly distributed gene families; many families of similar genes within E. coli are also evident. The largest family of paralogous proteins contains 80 ABC transporters. The genome as a whole is strikingly organized with respect to the local direction of replication; guanines, oligonucleotides possibly related to replication and recombination, and most genes are so oriented. The genome also contains insertion sequence (IS) elements, phage remnants, and many other patches of unusual composition indicating genome plasticity through horizontal transfer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Blattner, F R -- Plunkett, G 3rd -- Bloch, C A -- Perna, N T -- Burland, V -- Riley, M -- Collado-Vides, J -- Glasner, J D -- Rode, C K -- Mayhew, G F -- Gregor, J -- Davis, N W -- Kirkpatrick, H A -- Goeden, M A -- Rose, D J -- Mau, B -- Shao, Y -- P01 HG01428/HG/NHGRI NIH HHS/ -- S10 RR10379/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1997 Sep 5;277(5331):1453-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Genetics, University of Wisconsin-Madison, 445 Henry Mall, Madison, WI 53706, USA. ecoli@genetics.wisc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9278503" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/chemistry/genetics/metabolism ; Bacteriophage lambda/genetics ; Base Composition ; Binding Sites ; Chromosome Mapping ; DNA Replication ; DNA Transposable Elements ; DNA, Bacterial/genetics ; Escherichia coli/*genetics ; Genes, Bacterial ; *Genome, Bacterial ; Molecular Sequence Data ; Mutation ; Operon ; RNA, Bacterial/genetics ; RNA, Transfer/genetics ; Recombination, Genetic ; Regulatory Sequences, Nucleic Acid ; Repetitive Sequences, Nucleic Acid ; *Sequence Analysis, DNA ; Sequence Homology, Amino Acid
    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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    Brain, drugs and society (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gazzaniga, M S -- New York, N.Y. -- Science. 1997 Jan 24;275(5299):459.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9019800" target="_blank"〉PubMed〈/a〉
    Keywords: Budgets ; *Cognition ; Drug and Narcotic Control/economics ; Financing, Government ; Humans ; *Research Support as Topic ; Substance-Related Disorders/economics/*etiology ; 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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    Structure of a protein photocycle intermediate by millisecond time-resolved crystallography (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-07
    Description: The blue-light photoreceptor photoactive yellow protein (PYP) undergoes a self-contained light cycle. The atomic structure of the bleached signaling intermediate in the light cycle of PYP was determined by millisecond time-resolved, multiwavelength Laue crystallography and simultaneous optical spectroscopy. Light-induced trans-to-cis isomerization of the 4-hydroxycinnamyl chromophore and coupled protein rearrangements produce a new set of active-site hydrogen bonds. An arginine gateway opens, allowing solvent exposure and protonation of the chromophore's phenolic oxygen. Resulting changes in shape, hydrogen bonding, and electrostatic potential at the protein surface form a likely basis for signal transduction. The structural results suggest a general framework for the interpretation of protein photocycles.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Genick, U K -- Borgstahl, G E -- Ng, K -- Ren, Z -- Pradervand, C -- Burke, P M -- Srajer, V -- Teng, T Y -- Schildkamp, W -- McRee, D E -- Moffat, K -- Getzoff, E D -- GM36452/GM/NIGMS NIH HHS/ -- GM37684/GM/NIGMS NIH HHS/ -- RR07707/RR/NCRR NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Mar 7;275(5305):1471-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, 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/9045611" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/*chemistry/physiology ; Binding Sites ; Chromatiaceae ; Crystallography, X-Ray ; Electrochemistry ; Hydrogen Bonding ; Isomerism ; Light ; Models, Molecular ; *Photoreceptors, Microbial ; *Protein Conformation ; Signal Transduction ; Spectrum Analysis
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  • 95
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    Crystal structure of formate dehydrogenase H: catalysis involving Mo, molybdopterin, selenocysteine, and an Fe4S4 cluster (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-28
    Description: Formate dehydrogenase H from Escherichia coli contains selenocysteine (SeCys), molybdenum, two molybdopterin guanine dinucleotide (MGD) cofactors, and an Fe4S4 cluster at the active site and catalyzes the two-electron oxidation of formate to carbon dioxide. The crystal structures of the oxidized [Mo(VI), Fe4S4(ox)] form of formate dehydrogenase H (with and without bound inhibitor) and the reduced [Mo(IV), Fe4S4(red)] form have been determined, revealing a four-domain alphabeta structure with the molybdenum directly coordinated to selenium and both MGD cofactors. These structures suggest a reaction mechanism that directly involves SeCys140 and His141 in proton abstraction and the molybdenum, molybdopterin, Lys44, and the Fe4S4 cluster in electron transfer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boyington, J C -- Gladyshev, V N -- Khangulov, S V -- Stadtman, T C -- Sun, P D -- New York, N.Y. -- Science. 1997 Feb 28;275(5304):1305-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Structure, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Rockville, MD 20852, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9036855" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Carbon Dioxide/metabolism ; Catalysis ; Crystallography, X-Ray ; Electron Transport ; Escherichia coli/enzymology ; Ferrous Compounds/*chemistry ; Formate Dehydrogenases/*chemistry/metabolism ; Formates/*metabolism ; Guanine Nucleotides/chemistry/metabolism ; Hydrogen Bonding ; Hydrogenase/*chemistry/metabolism ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Molybdenum/chemistry/metabolism ; Multienzyme Complexes/*chemistry/metabolism ; Nitrites/chemistry ; Oxidation-Reduction ; *Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protons ; Pterins/chemistry/metabolism ; Selenocysteine/chemistry/metabolism
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  • 96
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    Structural basis for ligand-regulated oligomerization of AraC (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-18
    Description: The crystal structure of the arabinose-binding and dimerization domain of the Escherchia coli gene regulatory protein AraC was determined in the presence and absence of L-arabinose. The 1.5 angstrom structure of the arabinose-bound molecule shows that the protein adopts an unusual fold, binding sugar within a beta barrel and completely burying the arabinose with the amino-terminal arm of the protein. Dimer contacts in the presence of arabinose are mediated by an antiparallel coiled-coil. In the 2.8 angstrom structure of the uncomplexed protein, the amino-terminal arm is disordered, uncovering the sugar-binding pocket and allowing it to serve as an oligomerization interface. The ligand-gated oligomerization as seen in AraC provides the basis of a plausible mechanism for modulating the protein's DNA-looping properties.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soisson, S M -- MacDougall-Shackleton, B -- Schleif, R -- Wolberger, C -- GM18277/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Apr 18;276(5311):421-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9103202" target="_blank"〉PubMed〈/a〉
    Keywords: AraC Transcription Factor ; Arabinose/metabolism ; *Bacterial Proteins ; Binding Sites ; Crystallization ; Crystallography, X-Ray ; DNA/*metabolism ; Dimerization ; Hydrogen Bonding ; Ligands ; Models, Molecular ; *Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Repressor Proteins/*chemistry/metabolism ; *Transcription Factors
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  • 97
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    Nucleosome mobility and the maintenance of nucleosome positioning (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-02
    Description: To study nucleosome mobility and positioning, the R3 lac repressor was used with an adenosine triphosphate (ATP)-dependent chromatin assembly system to establish the positioning of five nucleosomes, with one nucleosome located between two R3 lac operators. When R3 protein was dissociated from DNA with isopropyl beta-D-thiogalactopyranoside, the R3-induced nucleosome positions remained unchanged for at least 60 minutes in the absence of ATP but rearranged within 15 minutes in the presence of ATP. These results suggest that nucleosomes are dynamic and mobile rather than static and that a DNA binding factor is continuously required for the maintenance of nucleosome positioning.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pazin, M J -- Bhargava, P -- Geiduschek, E P -- Kadonaga, J T -- New York, N.Y. -- Science. 1997 May 2;276(5313):809-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology and Center for Molecular Genetics, University of California, San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9115208" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Apyrase/metabolism ; Binding Sites ; Chromatin/*metabolism ; DNA/*metabolism ; DNA-Binding Proteins/*metabolism ; Isopropyl Thiogalactoside/pharmacology ; Nucleosomes/*physiology ; Operator Regions, Genetic ; Repressor Proteins/*metabolism
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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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    Flexibility in DNA recombination: structure of the lambda integrase catalytic core (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-04
    Description: Lambda integrase is archetypic of site-specific recombinases that catalyze intermolecular DNA rearrangements without energetic input. DNA cleavage, strand exchange, and religation steps are linked by a covalent phosphotyrosine intermediate in which Tyr342 is attached to the 3'-phosphate of the DNA cut site. The 1.9 angstrom crystal structure of the integrase catalytic domain reveals a protein fold that is conserved in organisms ranging from archaebacteria to yeast and that suggests a model for interaction with target DNA. The attacking Tyr342 nucleophile is located on a flexible loop about 20 angstroms from a basic groove that contains all the other catalytically essential residues. This bipartite active site can account for several apparently paradoxical features of integrase family recombinases, including the capacity for both cis and trans cleavage of DNA.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1839824/" 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/PMC1839824/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kwon, H J -- Tirumalai, R -- Landy, A -- Ellenberger, T -- AI13544/AI/NIAID NIH HHS/ -- GM33928/GM/NIGMS NIH HHS/ -- R01 GM033928/GM/NIGMS NIH HHS/ -- R01 GM062723/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Apr 4;276(5309):126-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9082984" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Attachment Sites, Microbiological ; Bacteriophage lambda/*enzymology ; Binding Sites ; Cloning, Molecular ; Conserved Sequence ; Crystallography, X-Ray ; DNA/*metabolism ; DNA Nucleotidyltransferases/chemistry/metabolism ; Hydrogen Bonding ; Integrases/*chemistry/metabolism ; Models, Molecular ; Molecular Sequence Data ; *Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Recombinases ; *Recombination, Genetic ; Tyrosine/chemistry/metabolism ; Virus Integration
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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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    Recognition of unique carboxyl-terminal motifs by distinct PDZ domains (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-03
    Description: The oriented peptide library technique was used to investigate the peptide-binding specificities of nine PDZ domains. Each PDZ domain selected peptides with hydrophobic residues at the carboxyl terminus. Individual PDZ domains selected unique optimal motifs defined primarily by the carboxyl terminal three to seven residues of the peptides. One family of PDZ domains, including those of the Discs Large protein, selected peptides with the consensus motif Glu-(Ser/Thr)-Xxx-(Val/Ile) (where Xxx represents any amino acid) at the carboxyl terminus. In contrast, another family of PDZ domains, including those of LIN-2, p55, and Tiam-1, selected peptides with hydrophobic or aromatic side chains at the carboxyl terminal three residues. On the basis of crystal structures of the PSD-95-3 PDZ domain, the specificities observed with the peptide library can be rationalized.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Songyang, Z -- Fanning, A S -- Fu, C -- Xu, J -- Marfatia, S M -- Chishti, A H -- Crompton, A -- Chan, A C -- Anderson, J M -- Cantley, L C -- CA66263/CA/NCI NIH HHS/ -- DK34989/DK/NIDDK NIH HHS/ -- R01 GM056203/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Jan 3;275(5296):73-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Signal Transduction, Beth Israel Hospital, and Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8974395" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Crystallography, X-Ray ; Guanine Nucleotide Exchange Factors ; Guanylate Kinase ; Helminth Proteins/chemistry/metabolism ; Humans ; Kinesin/chemistry/metabolism ; Membrane Proteins/chemistry/metabolism ; Models, Molecular ; Myosins/chemistry/metabolism ; Nerve Tissue Proteins/chemistry/metabolism ; Nucleoside-Phosphate Kinase/chemistry/metabolism ; Peptide Library ; Peptides/chemistry/*metabolism ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Tyrosine Phosphatases/chemistry/metabolism ; Proteins/chemistry/*metabolism ; Sequence Homology, Amino Acid
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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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    Corn genome initiative (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sorrells, M E -- Anderson, O D -- Baenziger, P S -- Cook, R J -- Cregan, P B -- Dubcovsky, J -- Dvorak, J -- Gill, B S -- Hart, G E -- Hayes, P M -- Herman, E M -- Kleinhofs, A -- Line, R F -- Qualset, C O -- McGuire, P E -- New York, N.Y. -- Science. 1997 Aug 15;277(5328):884-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9281064" target="_blank"〉PubMed〈/a〉
    Keywords: Edible Grain/*genetics ; Financing, Government ; *Genome, Plant ; *Research Support as Topic ; United States ; United States Department of Agriculture ; Zea mays/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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