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  • United States  (216)
  • Base Sequence  (143)
  • American Association for the Advancement of Science (AAAS)  (356)
  • Nature Publishing Group
  • 1990-1994  (356)
  • 1992  (356)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (356)
  • Nature Publishing Group
  • Springer  (2)
Years
  • 1990-1994  (356)
Year
  • 1
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    Cooperativity induced by a single mutation at the subunit interface of a dimeric enzyme: glutathione reductase (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-11-13
    Description: When glycine418 of Escherichia coli glutathione reductase, which is in a closely packed region of the dimer interface, is replaced with a bulky tryptophan residue, the enzyme becomes highly cooperative (Hill coefficient 1.76) for glutathione binding. The cooperativity is lost when the mutant subunit is hybridized with a wild-type subunit to create a heterodimer. The mutation appears to disrupt atomic packing at the dimer interface, which induces a change of kinetic mechanism. A single mutation in a region of the protein remote from the active site can thus act as a molecular switch to confer cooperativity on an enzyme.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scrutton, N S -- Deonarain, M P -- Berry, A -- Perham, R N -- New York, N.Y. -- Science. 1992 Nov 13;258(5085):1140-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Cambridge, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439821" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Binding Sites ; Escherichia coli/*enzymology/genetics ; Genes, Bacterial ; Glutathione/metabolism ; Glutathione Reductase/*chemistry/genetics/metabolism ; Glycine/chemistry ; Kinetics ; Macromolecular Substances ; Models, Molecular ; Molecular Sequence Data ; Molecular Structure ; *Mutagenesis, Site-Directed ; NADP/metabolism ; Plasmids ; Protein Multimerization ; Tryptophan/chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Modulation of DNA binding specificity by alternative splicing of the Wilms tumor wt1 gene transcript (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-10
    Description: The technique of whole-genome polymerase chain reaction was used to study the DNA binding properties of the product of the wt1 gene. The zinc finger region of this gene is alternatively spliced such that the major transcript encodes a protein with three extra amino acids between the third and fourth fingers. The minor form of the protein binds specifically to DNA. It is now shown that the major form of wt1 messenger RNA encodes a protein that binds to DNA with a specificity that differs from that of the minor form. Therefore, alternative splicing within the DNA binding domain of a transcription factor can generate proteins with distinct DNA binding specificities and probably different physiological targets.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bickmore, W A -- Oghene, K -- Little, M H -- Seawright, A -- van Heyningen, V -- Hastie, N D -- New York, N.Y. -- Science. 1992 Jul 10;257(5067):235-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Human Genetics Unit, Western General Hospital, Edinburgh, Scotland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1321494" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Binding Sites/*genetics ; Binding, Competitive ; Chromosomes, Human, Pair 11 ; DNA/*metabolism ; DNA-Binding Proteins/genetics/*metabolism ; Humans ; Molecular Sequence Data ; Polymerase Chain Reaction ; *RNA Splicing ; RNA, Messenger/*metabolism ; Sequence Homology, Nucleic Acid ; Transcription, Genetic ; WT1 Proteins ; Wilms Tumor/*genetics ; Zinc Fingers/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Reductase activity encoded by the HM1 disease resistance gene in maize (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-11-06
    Description: The HM1 gene in maize controls both race-specific resistance to the fungus Cochliobolus carbonum race 1 and expression of the NADPH (reduced form of nicotinamide adenine dinucleotide phosphate)-dependent HC toxin reductase (HCTR), which inactivates HC toxin, a cyclic tetrapeptide produced by the fungus to permit infection. Several HM1 alleles were generated and cloned by transposon-induced mutagenesis. The sequence of wild-type HM1 shares homology with dihydroflavonol-4-reductase genes from maize, petunia, and snap-dragon. Sequence homology is greatest in the beta alpha beta-dinucleotide binding fold that is conserved among NADPH- and NADH (reduced form of nicotinamide adenine dinucleotide)-dependent reductases and dehydrogenases. This indicates that HM1 encodes HCTR.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Johal, G S -- Briggs, S P -- New York, N.Y. -- Science. 1992 Nov 6;258(5084):985-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biotechnology Research, Pioneer Hi-Bred International, Inc., Johnston, IA 50131.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1359642" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Blotting, Southern ; Cloning, Molecular ; DNA/chemistry/genetics ; *Genes, Plant ; *Helminthosporium ; Introns ; Molecular Sequence Data ; NADP/pharmacology ; Nucleic Acid Hybridization ; Oxidoreductases/chemistry/*genetics ; Peptides, Cyclic/antagonists & inhibitors ; *Plant Diseases ; *Plant Proteins ; Polymorphism, Restriction Fragment Length ; RNA Splicing ; RNA, Messenger/genetics ; Zea mays/enzymology/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Florida dentist case: research affiliation and ethics (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-02-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abele, L G -- DeBry, R W -- New York, N.Y. -- Science. 1992 Feb 21;255(5047):903.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1312252" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/transmission ; Centers for Disease Control and Prevention (U.S.) ; Dentistry ; Ethics ; Florida ; *HIV-1/genetics ; Humans ; Jurisprudence ; Lawyers ; Professional Misconduct ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    AIDS vaccines. Testing target date looms, but will the vaccines be ready? (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-09-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Sep 11;257(5076):1472-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1523403" target="_blank"〉PubMed〈/a〉
    Keywords: *AIDS Vaccines ; Acquired Immunodeficiency Syndrome/immunology/*prevention & control ; HIV/immunology ; Humans ; National Institutes of Health (U.S.) ; Recombinant Proteins ; Safety ; United States ; Vaccines, Synthetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 6
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    NIH wrestles with furor over conference (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Aug 7;257(5071):739.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1496391" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; *Crime ; Female ; *Genetics, Medical ; Humans ; Male ; *National Institutes of Health (U.S.) ; *Research Support as Topic ; United States ; United States Dept. of Health and Human Services ; *Violence
    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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    Bush Administration weighs in on AIDS (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1992 Aug 14;257(5072):876.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1502552" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome/prevention & control ; Emigration and Immigration ; Government Agencies ; *HIV Infections/prevention & control ; *HIV Seropositivity ; Humans ; *Politics ; Prejudice ; Travel ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 8
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    Massey seeks to broaden NSF's role (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Aug 21;257(5073):1035.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1509251" target="_blank"〉PubMed〈/a〉
    Keywords: Government Agencies/*organization & administration ; Industry ; Research Support as Topic/*economics ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 9
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    HHS starts audit of grant fund use (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Aug 7;257(5071):741.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1496393" target="_blank"〉PubMed〈/a〉
    Keywords: *Management Audit ; *National Institutes of Health (U.S.) ; *Research Support as Topic ; United States ; *United States Dept. of Health and Human Services
    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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    Science and the press (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-01-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bishop, J E -- New York, N.Y. -- Science. 1992 Jan 3;255(5040):10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1553521" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Newspapers as Topic/standards ; Periodicals as Topic/*standards ; Publishing/*standards ; Quackery ; Science/*standards ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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