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  • Articles  (2,774)
  • Analytical Chemistry and Spectroscopy  (1,441)
  • Chemical Engineering  (688)
  • Humans  (503)
  • Molecular Sequence Data  (243)
  • 1990-1994  (2,774)
  • 1980-1984
  • 1925-1929
  • 1992  (2,774)
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  • Articles  (2,774)
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  • 1990-1994  (2,774)
  • 1980-1984
  • 1925-1929
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  • 1
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    Rain forest diet: you are what you eat (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-01-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1992 Jan 10;255(5041):163.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1553542" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Dietary Proteins ; *Food Preferences ; Humans ; South America ; *Tropical Climate
    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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    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
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  • 3
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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
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  • 4
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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
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  • 5
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    Living dangerously after an AIDS test (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1992 Jul 31;257(5070):615.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1496371" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*diagnosis/psychology ; Humans ; *Sexual Behavior
    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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    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
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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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
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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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
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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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
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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
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  • 11
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    NIH strategic plan nears its final form (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Jul 24;257(5069):476-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1636080" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; National Institutes of Health (U.S.)/*organization & administration ; Research/*standards ; *Research Support as Topic ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 12
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    Cigarettes and addiction (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-04-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gori, G B -- New York, N.Y. -- Science. 1992 Apr 24;256(5056):427.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1510756" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Nicotine ; Smoking/*adverse effects ; *Substance-Related Disorders
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 13
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    Why did they die? (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-12-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Black, F L -- New York, N.Y. -- Science. 1992 Dec 11;258(5089):1739-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Epidemiology and Public Health, Yale University, New Haven, CT 06510.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1465610" target="_blank"〉PubMed〈/a〉
    Keywords: DNA/genetics ; *Disease Susceptibility ; Europe ; Genes, MHC Class I ; Genetic Variation ; Humans ; *Indians, North American ; *Mortality ; North America
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 14
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    Some anthropological aspects of the prehistoric Tyrolean ice man (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-10-16
    Description: The corpse of a Late Neolithic individual found in a glacier in Oetztal is unusual because of the intact nature of all body parts that resulted from the characteristics of its mummification process and its protected geographical position with regard to glacier flow. Anthropological data indicate that the man was 25 to 40 years old, was between 156 and 160 centimeters in stature, had a cranial capacity of between 1500 and 1560 cubic centimeters, and likely died of exhaustion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seidler, H -- Bernhard, W -- Teschler-Nicola, M -- Platzer, W -- zur Nedden, D -- Henn, R -- Oberhauser, A -- Sjovold, T -- New York, N.Y. -- Science. 1992 Oct 16;258(5081):455-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Humanbiologie, Universitat Wien, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1411539" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Austria ; Ear/anatomy & histology ; Freezing ; History, Ancient ; Hominidae/*anatomy & histology ; Humans ; Italy ; Male ; *Mummies ; Skull/anatomy & histology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 15
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    Molecular epidemiology of HIV transmission in a dental practice (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-05-22
    Description: Human immunodeficiency virus type 1 (HIV-1) transmission from infected patients to health-care workers has been well documented, but transmission from an infected health-care worker to a patient has not been reported. After identification of an acquired immunodeficiency syndrome (AIDS) patient who had no known risk factors for HIV infection but who had undergone an invasive procedure performed by a dentist with AIDS, six other patients of this dentist were found to be HIV-infected. Molecular biologic studies were conducted to complement the epidemiologic investigation. Portions of the HIV proviral envelope gene from each of the seven patients, the dentist, and 35 HIV-infected persons from the local geographic area were amplified by polymerase chain reaction and sequenced. Three separate comparative genetic analyses--genetic distance measurements, phylogenetic tree analysis, and amino acid signature pattern analysis--showed that the viruses from the dentist and five dental patients were closely related. These data, together with the epidemiologic investigation, indicated that these patients became infected with HIV while receiving care from a dentist with AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ou, C Y -- Ciesielski, C A -- Myers, G -- Bandea, C I -- Luo, C C -- Korber, B T -- Mullins, J I -- Schochetman, G -- Berkelman, R L -- Economou, A N -- New York, N.Y. -- Science. 1992 May 22;256(5060):1165-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of HIV/AIDS, Centers for Disease Control, Atlanta, GA 30333.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589796" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/blood/microbiology/*transmission ; Amino Acid Sequence ; Base Sequence ; DNA, Viral/blood/genetics/isolation & purification ; *Dentistry ; Female ; Florida ; Genetic Variation ; HIV Infections/microbiology/*transmission ; HIV-1/*genetics/isolation & purification ; Humans ; Male ; Molecular Sequence Data ; Monocytes/physiology ; Oligodeoxyribonucleotides ; *Patients ; Phylogeny ; Sequence Homology, Nucleic Acid ; Viral Envelope Proteins/*genetics
    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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  • 16
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    NSF and duplicate grant submissions (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jaron, D -- New York, N.Y. -- Science. 1992 Aug 14;257(5072):861-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1502546" target="_blank"〉PubMed〈/a〉
    Keywords: *Government Agencies ; Humans ; *Interinstitutional Relations ; *National Institutes of Health (U.S.) ; *Research Support as Topic ; 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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  • 17
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    Syntaxin: a synaptic protein implicated in docking of synaptic vesicles at presynaptic active zones (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-10
    Description: Synaptic vesicles store neurotransmitters that are released during calcium-regulated exocytosis. The specificity of neurotransmitter release requires the localization of both synaptic vesicles and calcium channels to the presynaptic active zone. Two 35-kilodalton proteins (p35 or syntaxins) were identified that interact with the synaptic vesicle protein p65 (synaptotagmin). The p35 proteins are expressed only in the nervous system, are 84 percent identical, include carboxyl-terminal membrane anchors, and are concentrated on the plasma membrane at synaptic sites. An antibody to p35 immunoprecipitated solubilized N-type calcium channels. The p35 proteins may function in docking synaptic vesicles near calcium channels at presynaptic active zones.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bennett, M K -- Calakos, N -- Scheller, R H -- 2T32G07365/PHS HHS/ -- New York, N.Y. -- Science. 1992 Jul 10;257(5067):255-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Molecular and Cellular Physiology, Stanford University Medical Center, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1321498" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Antigens, Surface ; *Calcium-Binding Proteins ; Electrophoresis, Polyacrylamide Gel ; Immunoblotting ; Membrane Glycoproteins/physiology ; Molecular Sequence Data ; Nerve Tissue Proteins/isolation & purification/*physiology ; Oligonucleotide Probes ; Rats ; Sequence Homology, Nucleic Acid ; Synaptic Transmission/physiology ; Synaptic Vesicles/*physiology ; Synaptotagmin I ; Synaptotagmins ; Syntaxin 1
    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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  • 18
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    Requirement for the adenovirus type 9 E4 region in production of mammary tumors (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-09-07
    Description: Oncogenic viruses demonstrating a strict tropism for the mammary gland provide special opportunities to study the susceptibility of this tissue to neoplasia. In rats, human adenovirus type 9 (Ad9) elicits mammary fibroadenomas that are similar to common breast tumors in women, as well as phyllodes-like tumors and mammary sarcomas. By constructing recombinant adenoviruses between Ad9 and Ad26 (a related nontumorigenic virus), it was shown that the Ad9 E4 region was absolutely required to produce these mammary tumors. This indicates that an adenovirus gene located outside the classic transforming region (E1) can significantly influence the in vivo oncogenicity of an adenovirus. Consistent with a direct role in mammary gland oncogenesis, the Ad9 E4 region also exhibited transforming properties in vitro. Therefore, the Ad9 E4 region is a viral oncogene specifically involved in mammary gland tumorigenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Javier, R -- Raska, K Jr -- Shenk, T -- CA 21196/CA/NCI NIH HHS/ -- CA 41086/CA/NCI NIH HHS/ -- T32 CA09528/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1992 Aug 28;257(5074):1267-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Molecular Biology, Princeton University, NJ 08544.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1519063" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviridae/genetics/*pathogenicity ; Amino Acid Sequence ; Animals ; Cell Transformation, Neoplastic/*genetics ; Chromosome Mapping ; Female ; Mammary Neoplasms, Experimental/*genetics/*microbiology ; Molecular Sequence Data ; Open Reading Frames/genetics ; Rats ; Rats, Inbred WF ; Sequence Homology, Nucleic 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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    The insanity defense and mental illness (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marques, P R -- New York, N.Y. -- Science. 1992 Apr 17;256(5055):293.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1566076" target="_blank"〉PubMed〈/a〉
    Keywords: *Behavior ; Brain/*physiopathology ; Humans ; Mental Disorders/*physiopathology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Neural computing in cancer drug development: predicting mechanism of action (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-10-16
    Description: Described here are neural networks capable of predicting a drug's mechanism of action from its pattern of activity against a panel of 60 malignant cell lines in the National Cancer Institute's drug screening program. Given six possible classes of mechanism, the network misses the correct category for only 12 out of 141 agents (8.5 percent), whereas linear discriminant analysis, a standard statistical technique, misses 20 out of 141 (14.2 percent). The success of the neural net indicates several things. (i) The cell line response patterns are rich in information about mechanism. (ii) Appropriately designed neural networks can make effective use of that information. (iii) Trained networks can be used to classify prospectively the more than 10,000 agents per year tested by the screening program. Related networks, in combination with classical statistical tools, will help in a variety of ways to move new anticancer agents through the pipeline from in vitro studies to clinical application.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weinstein, J N -- Kohn, K W -- Grever, M R -- Viswanadhan, V N -- Rubinstein, L V -- Monks, A P -- Scudiero, D A -- Welch, L -- Koutsoukos, A D -- Chiausa, A J -- New York, N.Y. -- Science. 1992 Oct 16;258(5081):447-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Mathematical Biology, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1411538" target="_blank"〉PubMed〈/a〉
    Keywords: Alkylating Agents ; *Antineoplastic Agents/classification ; Databases, Factual ; *Drug Design ; Drug Evaluation, Preclinical ; Growth Inhibitors ; Humans ; In Vitro Techniques ; Neural Networks (Computer) ; Tumor Cells, Cultured/drug effects
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    Lead researcher confronts accusers in public hearing (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-04-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Apr 24;256(5056):437-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1570504" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; History, 20th Century ; Humans ; *Intelligence ; Lead/administration & dosage/*adverse effects ; Lead Poisoning/physiopathology ; *Scientific Misconduct ; United States
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    The Son of sevenless gene product: a putative activator of Ras (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-01-31
    Description: The Son of sevenless (Sos) gene functions in signaling pathways initiated by the sevenless and epidermal growth factor receptor tyrosine kinases. The Sos gene has now been isolated and sequenced. Its product is a 1595-amino acid protein similar to the CDC25 protein in Saccharomyces cerevisiae, a guanine nucleotide exchange factor that activates Ras. These results imply a role for the ras pathway in Drosophila neuronal development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bonfini, L -- Karlovich, C A -- Dasgupta, C -- Banerjee, U -- 1 R01 EY08152-01A1/EY/NEI NIH HHS/ -- GM-07104/GM/NIGMS NIH HHS/ -- RR6461/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1992 Jan 31;255(5044):603-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of California, Los Angeles 90024.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1736363" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Cell Cycle Proteins ; Drosophila/*genetics ; Fungal Proteins/genetics ; Gene Library ; *Genes, ras ; Genotype ; Membrane Proteins/*genetics ; Molecular Sequence Data ; Neurons/physiology ; Restriction Mapping ; Saccharomyces cerevisiae/genetics ; Sequence Homology, Nucleic Acid ; Son of Sevenless Proteins ; *ras-GRF1
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  • 23
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    Identification of ras oncogene mutations in the stool of patients with curable colorectal tumors (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-04-03
    Description: Colorectal (CR) tumors are usually curable if detected before metastasis. Because genetic alterations are associated with the development of these tumors, mutant genes may be found in the stool of individuals with CR neoplasms. The stools of nine patients whose tumors contained mutations of K-ras were analyzed. In eight of the nine cases, the ras mutations were detectable in DNA purified from the stool. These patients included those with benign and malignant neoplasms from proximal and distal colonic epithelium. Thus, colorectal tumors can be detected by a noninvasive method based on the molecular pathogenesis of the disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sidransky, D -- Tokino, T -- Hamilton, S R -- Kinzler, K W -- Levin, B -- Frost, P -- Vogelstein, B -- CA06973/CA/NCI NIH HHS/ -- CA35494/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1992 Apr 3;256(5053):102-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncology, Johns Hopkins University, Baltimore, MD 21231.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1566048" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Amino Acid Sequence ; Base Sequence ; Blotting, Southern ; Carcinoma/diagnosis/*genetics/pathology ; Colonic Neoplasms/diagnosis/*genetics/pathology ; DNA, Neoplasm/genetics/*isolation & purification ; Feces/chemistry ; Female ; *Genes, ras ; Humans ; Male ; Middle Aged ; Molecular Sequence Data ; *Mutation ; Oligodeoxyribonucleotides ; Polymerase Chain Reaction ; Prognosis ; Rectal Neoplasms/diagnosis/*genetics/pathology
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    Radiation risks. Study casts doubt on Hiroshima data (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1992 Oct 16;258(5081):394.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1411533" target="_blank"〉PubMed〈/a〉
    Keywords: Dose-Response Relationship, Radiation ; Humans ; Japan ; Neoplasms, Radiation-Induced/*etiology ; Neutrons ; Nuclear Warfare
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    Minority health. NIH spells out plans for a $45 million initiative (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Apr 3;256(5053):24.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1566053" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Child ; Female ; *Health Promotion ; Humans ; Infant ; Infant Mortality ; Male ; Middle Aged ; *Minority Groups ; National Institutes of Health (U.S.) ; *Research Support as Topic ; United States
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    DNA hydrolyzing autoantibodies (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-05-01
    Description: A DNA-nicking activity was detected in the sera of patients with various autoimmune pathologies and was shown to be a property of autoantibodies. The DNA hydrolyzing activity, which was purified by affinity and high-performance liquid chromatography, corresponded in size to immunoglobulin M (IgM) and IgG and had a positive response to antibodies to human IgG. The DNA hydrolyzing autoantibodies were stable to acid shock and yielded a DNA degradation pattern that was different from that of deoxyribonuclease (DNase) I and blood DNase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shuster, A M -- Gololobov, G V -- Kvashuk, O A -- Bogomolova, A E -- Smirnov, I V -- Gabibov, A G -- New York, N.Y. -- Science. 1992 May 1;256(5057):665-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉V.A. Engelhardt Institute of Molecular Biology, Academy of Sciences of Russia, Moscow.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1585181" target="_blank"〉PubMed〈/a〉
    Keywords: Acetates/pharmacology ; Acetic Acid ; Autoantibodies/isolation & purification/*metabolism ; Autoimmune Diseases/*metabolism ; Chromatography, High Pressure Liquid ; DNA/*metabolism ; DNA Polymerase I/metabolism ; Deoxyribonuclease I/metabolism ; Electrophoresis, Agar Gel ; Humans ; Immunoglobulin G/isolation & purification/metabolism ; Immunoglobulin M/isolation & purification/metabolism ; Kinetics ; Lupus Erythematosus, Systemic/immunology ; Plasmids
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    Exaggerated carcinogenicity of chemicals (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-06-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abelson, P H -- New York, N.Y. -- Science. 1992 Jun 19;256(5064):1609.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1609271" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Butadienes/*toxicity ; *Carcinogenicity Tests ; Haplorhini ; Humans ; Mice ; Neoplasms/*chemically induced ; Rats ; Risk
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    Germany's gene law begins to bite (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-01-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kahn, Patricia -- New York, N.Y. -- Science. 1992 Jan 31;255(5044):524-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11642978" target="_blank"〉PubMed〈/a〉
    Keywords: Attitude ; Containment of Biohazards ; *DNA, Recombinant ; Genetic Engineering ; Germany ; *Government Regulation ; Humans ; *Legislation as Topic ; Politics ; Public Opinion ; Research Personnel ; *Social Control, Formal
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    Regulation of plasma membrane recycling by CFTR (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-04-24
    Description: The gene that encodes the cystic fibrosis transmembrane conductance regulator (CFTR) is defective in patients with cystic fibrosis. Although the protein product of the CFTR gene has been proposed to function as a chloride ion channel, certain aspects of its function remain unclear. The role of CFTR in the adenosine 3',5'-monophosphate (cAMP)-dependent regulation of plasma membrane recycling was examined. Adenosine 3',5'-monophosphate is known to regulate endocytosis and exocytosis in chloride-secreting epithelial cells that express CFTR. However, mutant epithelial cells derived from a patient with cystic fibrosis exhibited no cAMP-dependent regulation of endocytosis and exocytosis until they were transfected with complementary DNA encoding wild-type CFTR. Thus, CFTR is critical for cAMP-dependent regulation of membrane recycling in epithelial tissues, and this function of CFTR could explain in part the pleiotropic nature of cystic fibrosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bradbury, N A -- Jilling, T -- Berta, G -- Sorscher, E J -- Bridges, R J -- Kirk, K L -- New York, N.Y. -- Science. 1992 Apr 24;256(5056):530-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Biophysics, University of Alabama, Birmingham 35294.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1373908" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cell Membrane/*physiology ; Chlorides/metabolism ; Colforsin/pharmacology ; Cyclic AMP/pharmacology ; Cystic Fibrosis/*physiopathology ; Cystic Fibrosis Transmembrane Conductance Regulator ; DNA/genetics ; Endocytosis/drug effects/physiology ; Epithelium/secretion ; Exocytosis/drug effects/physiology ; Gene Expression ; Horseradish Peroxidase/metabolism ; Humans ; Membrane Proteins/genetics/*physiology ; Molecular Sequence Data ; Pancreatic Neoplasms ; Transfection ; Tumor Cells, Cultured ; Wheat Germ Agglutinins/metabolism
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    Repression of the insulin-like growth factor II gene by the Wilms tumor suppressor WT1 (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-07-31
    Description: The Wilms tumor suppressor gene wt1 encodes a zinc finger DNA binding protein, WT1, that functions as a transcriptional repressor. The fetal mitogen insulin-like growth factor II (IGF-II) is overexpressed in Wilms tumors and may have autocrine effects in tumor progression. The major fetal IGF-II promoter was defined in transient transfection assays as a region spanning from nucleotides -295 to +135, relative to the transcription start site. WT1 bound to multiple sites in this region and functioned as a potent repressor of IGF-II transcription in vivo. Maximal repression was dependent on the presence of WT1 binding sites on each side of the transcriptional initiation site. These findings provide a molecular basis for overexpression of IGF-II in Wilms tumors and suggest that WT1 negatively regulates blastemal cell proliferation by limiting the production of a fetal growth factor in the developing vertebrate kidney.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Drummond, I A -- Madden, S L -- Rohwer-Nutter, P -- Bell, G I -- Sukhatme, V P -- Rauscher, F J 3rd -- CA 10817/CA/NCI NIH HHS/ -- CA 47983/CA/NCI NIH HHS/ -- CA 52009/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1992 Jul 31;257(5070):674-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Chicago, IL 60637.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1323141" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; Blotting, Northern ; DNA/chemistry/metabolism ; DNA-Binding Proteins/*metabolism ; Deoxyribonuclease I/metabolism ; *Gene Expression Regulation, Neoplastic ; Genes, Wilms Tumor/*physiology ; Humans ; Insulin-Like Growth Factor II/*genetics ; Kidney/embryology/metabolism ; Mice ; Molecular Sequence Data ; Promoter Regions, Genetic ; Rats ; Sequence Homology, Nucleic Acid ; Transfection ; WT1 Proteins ; Wilms Tumor/genetics/metabolism ; Zinc Fingers
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    The fms-like tyrosine kinase, a receptor for vascular endothelial growth factor (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-02-21
    Description: The fms-like tyrosine kinase (Flt) is a transmembrane receptor in the tyrosine kinase family. Expression of flt complementary DNA in COS cells conferred specific, high-affinity binding of vascular endothelial growth factor, also known as vascular permeability factor (VEGF-VPF), a factor that induces vascular permeability when injected in the guinea pig skin and stimulates endothelial cell proliferation. Expression of Flt in Xenopus laevis oocytes caused the oocytes to release calcium in response to VEGF-VPF. These findings show that flt encodes a receptor for VEGF-VPF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Vries, C -- Escobedo, J A -- Ueno, H -- Houck, K -- Ferrara, N -- Williams, L T -- P01 HL-43821/HL/NHLBI NIH HHS/ -- R01 HL-32898/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1992 Feb 21;255(5047):989-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1312256" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cloning, Molecular ; Cross-Linking Reagents ; Endothelial Growth Factors/*physiology ; Enzyme Activation ; Humans ; In Vitro Techniques ; Lymphokines/*physiology ; Proto-Oncogene Proteins/genetics/*physiology ; Receptors, Cell Surface/*genetics ; Signal Transduction ; Transfection ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factor Receptor-1 ; Vascular Endothelial Growth Factors ; Xenopus laevis
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    Uganda to host AIDS vaccine therapy trials (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1992 Aug 7;257(5071):742.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1496394" target="_blank"〉PubMed〈/a〉
    Keywords: *AIDS Vaccines ; Acquired Immunodeficiency Syndrome/*immunology/prevention & control ; Clinical Trials as Topic ; Humans ; Uganda ; World Health Organization
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    Coppola looking for an AIDS "cure" (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1992 Aug 7;257(5071):731.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1496384" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*therapy ; Humans ; *Motion Pictures as Topic
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    Cloning and expression in yeast of a plant potassium ion transport system (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-05-01
    Description: A membrane polypeptide involved in K+ transport in a higher plant was cloned by complementation of a yeast mutant defective in K+ uptake with a complementary DNA library from Arabidopsis thaliana. A 2.65-kilobase complementary DNA conferred ability to grow on media with K+ concentration in the micromolar range and to absorb K+ (or 86Rb+) at rates similar to those in wild-type yeast. The predicted amino acid sequence (838 amino acids) has three domains: a channel-forming region homologous to animal K+ channels, a cyclic nucleotide-binding site, and an ankyrin-like region.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sentenac, H -- Bonneaud, N -- Minet, M -- Lacroute, F -- Salmon, J M -- Gaymard, F -- Grignon, C -- New York, N.Y. -- Science. 1992 May 1;256(5057):663-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biochimie et Physiologie Vegetales, ENSA-M/INRA/CNRS URA 573, Montpellier, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1585180" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Arabidopsis Proteins ; Biological Transport ; Blotting, Southern ; Carrier Proteins/chemistry/genetics ; *Cloning, Molecular ; DNA/genetics ; Deoxyribonuclease EcoRI ; Gene Expression ; Kinetics ; Molecular Sequence Data ; Plant Proteins/chemistry/*genetics ; Plants/*genetics ; Potassium/*metabolism ; Potassium Channels/chemistry/*genetics ; Saccharomyces cerevisiae/*genetics ; Sequence Homology, Nucleic Acid
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    Sequence discrimination by alternatively spliced isoforms of a DNA binding zinc finger domain (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-09-25
    Description: Two major developmentally regulated isoforms of the Drosophila chorion transcription factor CF2 differ by an extra zinc finger within the DNA binding domain. The preferred DNA binding sites were determined and are distinguished by an internal duplication of TAT in the site recognized by the isoform with the extra finger. The results are consistent with modular interactions between zinc fingers and trinucleotides and also suggest rules for recognition of AT-rich DNA sites by zinc finger proteins. The results show how modular finger interactions with trinucleotides can be used, in conjunction with alternative splicing, to alter the binding specificity and increase the spectrum of sites recognized by a DNA binding domain. Thus, CF2 may potentially regulate distinct sets of target genes during development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gogos, J A -- Hsu, T -- Bolton, J -- Kafatos, F C -- New York, N.Y. -- Science. 1992 Sep 25;257(5078):1951-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Developmental Biology, Harvard University, Cambridge, MA 02138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1290524" target="_blank"〉PubMed〈/a〉
    Keywords: *Alternative Splicing ; Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; DNA-Binding Proteins/*metabolism ; *Drosophila Proteins ; Drosophila melanogaster/genetics ; Hydrogen Bonding ; Molecular Sequence Data ; Oligodeoxyribonucleotides/chemistry/metabolism ; Protein Binding ; *Regulatory Sequences, Nucleic Acid ; Structure-Activity Relationship ; Transcription Factors/*metabolism ; *Zinc Fingers
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    New horizons for RNA catalysis (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-06-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pace, N R -- New York, N.Y. -- Science. 1992 Jun 5;256(5062):1402-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1376496" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Catalysis ; Chromosome Deletion ; Escherichia coli/genetics/metabolism ; Molecular Sequence Data ; Nucleic Acid Conformation ; Protein Biosynthesis ; Proteins/genetics ; RNA/genetics/*metabolism ; RNA, Ribosomal/genetics/*metabolism ; Ribosomes/*metabolism
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    Association of human cyclin E with a periodic G1-S phase protein kinase (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-09-25
    Description: G1 cyclins control the G1 to S phase transition in the budding yeast, Saccharomyces cerevisiae. Cyclin E was discovered in the course of a screen for human complementary DNAs that rescue a deficiency of G1 cyclin function in budding yeast. The amounts of both the cyclin E protein and an associated protein kinase activity fluctuated periodically through the human cell cycle; both were maximal in late G1 and early S phases. Cyclin E-associated kinase activity was correlated with the appearance of complexes containing cyclin E and the cyclin-dependent kinase Cdk2. Thus, the cyclin E-Cdk2 complex may constitute a human G1-S phase-specific regulatory protein kinase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dulic, V -- Lees, E -- Reed, S I -- CA55339/CA/NCI NIH HHS/ -- GM38328/GM/NIGMS NIH HHS/ -- GM46006/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Sep 25;257(5078):1958-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Scripps Research Institute, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1329201" target="_blank"〉PubMed〈/a〉
    Keywords: *CDC2-CDC28 Kinases ; *Cell Cycle ; Cyclin-Dependent Kinase 2 ; *Cyclin-Dependent Kinases ; Cyclins/*metabolism ; HeLa Cells ; Humans ; Immunologic Techniques ; Macromolecular Substances ; Protamine Kinase/*metabolism ; Protein Binding ; Protein Kinases/*metabolism ; *Protein-Serine-Threonine Kinases
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    Tuberculosis rebounding (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-05-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brennan, P J -- New York, N.Y. -- Science. 1992 May 22;256(5060):1113-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589784" target="_blank"〉PubMed〈/a〉
    Keywords: BCG Vaccine ; Humans ; Isoniazid/therapeutic use ; Mycobacterium tuberculosis/*genetics ; Recombinant Proteins/therapeutic use ; Research/*trends ; Tuberculosis, Pulmonary/*epidemiology/microbiology/therapy ; Vaccines, Synthetic
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  • 39
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    Chance and statistical significance in protein and DNA sequence analysis (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-03
    Description: Statistical approaches help in the determination of significant configurations in protein and nucleic acid sequence data. Three recent statistical methods are discussed: (i) score-based sequence analysis that provides a means for characterizing anomalies in local sequence text and for evaluating sequence comparisons; (ii) quantile distributions of amino acid usage that reveal general compositional biases in proteins and evolutionary relations; and (iii) r-scan statistics that can be applied to the analysis of spacings of sequence markers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karlin, S -- Brendel, V -- GM10452-29/GM/NIGMS NIH HHS/ -- HG00335-04/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):39-49.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Mathematics, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1621093" target="_blank"〉PubMed〈/a〉
    Keywords: *Amino Acid Sequence ; Animals ; Bacillus subtilis/genetics ; *Base Sequence ; DNA/chemistry/*genetics ; Drosophila/genetics ; Escherichia coli/genetics ; Humans ; Mathematics ; *Models, Genetic ; *Models, Statistical ; Proteins/chemistry/*genetics ; Saccharomyces cerevisiae/genetics ; Viruses/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Absence of microsomal triglyceride transfer protein in individuals with abetalipoproteinemia (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-11-06
    Description: Abetalipoproteinemia is a human genetic disease that is characterized by a defect in the assembly or secretion of plasma very low density lipoproteins and chylomicrons. The microsomal triglyceride transfer protein (MTP), which is located in the lumen of microsomes isolated from the liver and intestine, has been proposed to function in lipoprotein assembly. MTP activity and the 88-kilodalton component of MTP were present in intestinal biopsy samples from eight control individuals but were absent in four abetalipoproteinemic subjects. This finding suggests that a defect in MTP is the basis for abetalipoproteinemia and that MTP is indeed required for lipoprotein assembly.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wetterau, J R -- Aggerbeck, L P -- Bouma, M E -- Eisenberg, C -- Munck, A -- Hermier, M -- Schmitz, J -- Gay, G -- Rader, D J -- Gregg, R E -- HL18577/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1992 Nov 6;258(5084):999-1001.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Metabolic Diseases, Bristol-Myers Squibb, Princeton, NJ 08543-4000.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439810" target="_blank"〉PubMed〈/a〉
    Keywords: Abetalipoproteinemia/*etiology ; Chylomicrons/metabolism ; Duodenum/chemistry/metabolism/ultrastructure ; Humans ; Immunoblotting ; Intestines/*chemistry/ultrastructure ; Jejunum/chemistry/metabolism/ultrastructure ; Lipoproteins, VLDL/biosynthesis ; Microsomes/chemistry/metabolism ; Microsomes, Liver/chemistry ; Triglycerides/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Lyme disease: asking the right questions (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-09-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brenner, C -- New York, N.Y. -- Science. 1992 Sep 25;257(5078):1845-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1411496" target="_blank"〉PubMed〈/a〉
    Keywords: Chronic Disease ; Humans ; Lyme Disease/*microbiology
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    Genome research: fulfilling the public's expectations for knowledge and commercialization (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-14
    Description: This article provides a historical perspective for the patenting of gene sequences and describes the fundamentals and evolution of patent law. It summarizes federal technology transfer law and policy and assesses the impacts of patenting on academic research. The patentability of gene sequences is then considered along with potential impacts that published sequence data may have on obtaining patent protection for downstream products. Industry's position on gene patenting is summarized and perspectives from the emerging public record on these issues are presented. The article discussing points at which the filing of patent applications and the licensing of patents may be appropriate. It concludes that technology transfer policies for genome research must be adopted carefully so that they remain viable in a time of rapid technological change.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Adler, R G -- New York, N.Y. -- Science. 1992 Aug 14;257(5072):908-14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1502557" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Biomedical Research ; Biotechnology/*legislation & jurisprudence ; DNA/*genetics ; Federal Government ; *Genome ; Genome, Human ; Government Regulation ; Humans ; Hybridomas ; Information Dissemination ; *Patents as Topic ; *Research ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Infection of Macaca nemestrina by human immunodeficiency virus type-1 (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-03
    Description: After observations that Macaca nemestrina were exceptionally susceptible to simian immunodeficiency virus and human immunodeficiency virus type-2 (HIV-2), studies of HIV-1 replication were initiated. Several strains of HIV-1, including a recent patient isolate, replicated in vitro in peripheral blood mononuclear cells (PBMCs) and in CD4-positive M. nemestrina lymphocytes in a CD4-dependent fashion. Eight animals were subsequently inoculated with either cell-associated or cell-free suspensions of HIV-1. All animals had HIV-1 isolated by cocultivation, had HIV-1 DNA in their PBMCs as shown by polymerase chain reaction, and experienced sustained seroconversion to a broad spectrum of HIV-1 proteins. Macaca nemestrina is an animal model of HIV-1 infections that provides opportunities for evaluating the pathogenesis of acute HIV-1 replication and candidate vaccines and therapies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Agy, M B -- Frumkin, L R -- Corey, L -- Coombs, R W -- Wolinsky, S M -- Koehler, J -- Morton, W R -- Katze, M G -- AI26503/AI/NIAID NIH HHS/ -- AI27757/AI/NIAID NIH HHS/ -- RR00166/RR/NCRR NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):103-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regional Primate Research Center, University of Washington, Seattle, WA 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1621083" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD4/physiology ; Base Sequence ; Cysteine/metabolism ; Databases, Factual ; *Genes, gag ; HIV Infections/*physiopathology ; HIV Seropositivity ; HIV-1/isolation & purification/pathogenicity/*physiology ; Humans ; Lymphocytes/immunology/physiology ; Macaca nemestrina/*microbiology ; Methionine/metabolism ; Molecular Sequence Data ; Oligodeoxyribonucleotides ; Oligonucleotide Probes ; Viral Proteins/biosynthesis/isolation & purification ; *Virus Replication
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    Pseudo--half-knot formation with RNA (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-14
    Description: A pseudo--half-knot can be formed by binding an oligonucleotide asymmetrically to an RNA hairpin loop. This binding motif was used to target the human immunodeficiency virus TAR element, an important viral RNA structure that is the receptor for Tat, the major viral transactivator protein. Oligonucleotides complementary to different halves of the TAR structure bound with greater affinity than molecules designed to bind symmetrically around the hairpin. The pseudo--half-knot--forming oligonucleotides altered the TAR structure so that specific recognition and binding of a Tat-derived peptide was disrupted. This general binding motif may be used to disrupt the structure of regulatory RNA hairpins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ecker, D J -- Vickers, T A -- Bruice, T W -- Freier, S M -- Jenison, R D -- Manoharan, M -- Zounes, M -- New York, N.Y. -- Science. 1992 Aug 14;257(5072):958-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉ISIS Pharmaceuticals, Carlsbad, CA 92008.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1502560" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Binding Sites ; DNA, Viral/metabolism ; Gene Products, tat/metabolism ; HIV/*genetics ; Kinetics ; Molecular Sequence Data ; *Nucleic Acid Conformation ; Oligoribonucleotides/*chemistry ; RNA, Viral/*chemistry/genetics/metabolism ; tat Gene Products, Human Immunodeficiency Virus
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  • 45
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    G protein activation of a hormone-stimulated phosphatase in human tumor cells (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-05-22
    Description: The growth-inhibiting peptide hormone somatostatin stimulates phosphotyrosine phosphatase activity in the human pancreatic cell line MIA PaCa-2. This hormonal activation was mediated by a pertussis toxin-sensitive guanosine 5'-triphosphate-binding protein (G protein) in the membranes of these cells. Activation of this G protein by somatostatin stimulated the dephosphorylation of exogenous epidermal growth factor receptor prepared from A-431 cells in vitro. This pathway may mediate the antineoplastic action of somatostatin in these cells and in human tumors and could represent a general mechanism of G protein coupling that is utilized by normal cells in the hormonal control of cell growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pan, M G -- Florio, T -- Stork, P J -- New York, N.Y. -- Science. 1992 May 22;256(5060):1215-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vollum Institute for Advanced Biomedical Research, Oregon Health Sciences University, Portland 97201.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1350382" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Carcinoma, Squamous Cell ; Cell Line ; Cell Membrane/metabolism ; Dose-Response Relationship, Drug ; Enzyme Activation ; GTP-Binding Proteins/*metabolism ; Guanosine 5'-O-(3-Thiotriphosphate)/pharmacology ; Guanosine Diphosphate/analogs & derivatives/pharmacology ; Humans ; Kinetics ; Pancreatic Neoplasms ; Peptides/metabolism ; Pertussis Toxin ; Phosphorylation ; Protein Kinases/metabolism ; Protein Tyrosine Phosphatases/*metabolism ; Receptor, Epidermal Growth Factor/metabolism ; Somatostatin/*pharmacology ; Thionucleotides/pharmacology ; Virulence Factors, Bordetella/pharmacology
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    Smithsonian Institution: bracing for bad news (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-05-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1992 May 29;256(5061):1270.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1598563" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Costs and Cost Analysis ; Government Agencies/*economics ; Humans ; *Museums ; United States
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    Intercellular communication and cell-cell adhesion (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-03-27
    Description: In developmental biology, binary cell-cell interactions often determine the fate of one or both cell partners. The two cells must adhere to one another to allow chemical signals to be transmitted in one or both directions across the regions of cell-cell contact. The molecular mechanisms of cell-cell adhesion and intercellular communication, even if they are mediated by different cell surface components, may be functionally integrated in several different ways. Studies of helper T cells with antigen-presenting B cells in culture have illuminated such binary interactions. The possible application of similar mechanisms to other binary developmental systems is briefly explored.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Singer, S J -- GM-15971/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Mar 27;255(5052):1671-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of California, San Diego, La Jolla 92093.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1313187" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen-Presenting Cells ; *Cell Adhesion ; *Cell Communication ; Humans ; Receptor Aggregation ; Receptors, Cell Surface/*physiology ; T-Lymphocytes, Helper-Inducer/physiology
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  • 48
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    Spatial control of the gap gene knirps in the Drosophila embryo by posterior morphogen system (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-02-21
    Description: The gap genes of Drosophila are the first zygotic genes to respond to the maternal positional signals and establish the body pattern along the anterior-posterior axis. The gap gene knirps, required for patterning in the posterior region of the embryo, can be activated throughout the wild-type embryo and is normally repressed from the anterior and posterior sides. These results provide direct molecular evidence that the posterior morphogen system interacts in a fundamentally different manner than do hunchback and bicoid, which are responsible for anterior pattern formation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pankratz, M J -- Busch, M -- Hoch, M -- Seifert, E -- Jackle, H -- New York, N.Y. -- Science. 1992 Feb 21;255(5047):986-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck Institut fur Biophysikalische Chemie, Abteilung Molekulare Entwicklungsbiologie, Gottingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1546296" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; Cloning, Molecular ; Drosophila melanogaster/embryology/*genetics ; Gene Expression Regulation ; Genes ; Molecular Sequence Data ; Morphogenesis ; Regulatory Sequences, Nucleic Acid
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    Immunoglobulin A-induced shift of Epstein-Barr virus tissue tropism (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-03-20
    Description: Increased immunoglobulin A (IgA) antibodies to the Epstein-Barr virus (EBV) appear months to years before the clinical onset of nasopharyngeal carcinoma and define populations at high risk for this EBV-associated epithelial cancer common in south China. In the human HT-29 epithelial cell line, polymeric IgA (pIgA) specific for EBV promoted infection of the otherwise refractory epithelial cells. When bound to pIgA, EBV entered epithelial cells through secretory component-mediated IgA transport but no longer infected B lymphocytes. Such an immune-induced shift in EBV tissue tropism provides a paradigm for endogenous spread of EBV in the immune host that predicts infectious sequelae of epithelium.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sixbey, J W -- Yao, Q Y -- CA21765/CA/NCI NIH HHS/ -- CA38877/CA/NCI NIH HHS/ -- CA52258/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1992 Mar 20;255(5051):1578-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Infectious Diseases, St. Jude Children's Research Hospital, TN 38101-0318.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1312750" target="_blank"〉PubMed〈/a〉
    Keywords: B-Lymphocytes/immunology/microbiology ; Base Sequence ; Epithelium/*microbiology ; Gene Products, env ; Herpesvirus 4, Human/*pathogenicity ; Humans ; Immunoglobulin A/*immunology ; In Vitro Techniques ; Infectious Mononucleosis/immunology ; Lymphocyte Activation/immunology ; Molecular Sequence Data ; Nasopharyngeal Neoplasms/immunology ; Secretory Component/physiology
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    Acetylcholine receptor channel structure probed in cysteine-substitution mutants (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-10-09
    Description: In order to understand the structural bases of ion conduction, ion selectivity, and gating in the nicotinic acetylcholine receptor, mutagenesis and covalent modification were combined to identify the amino acid residues that line the channel. The side chains of alternate residues--Ser248, Leu250, Ser252, and Thr254--in M2, a membrane-spanning segment of the alpha subunit, are exposed in the closed channel. Thus alpha 248-254 probably forms a beta strand, and the gate is closer to the cytoplasmic end of the channel than any of these residues. On channel opening, Leu251 is also exposed. These results lead to a revised view of the closed and open channel structures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Akabas, M H -- Stauffer, D A -- Xu, M -- Karlin, A -- NS07065/NS/NINDS NIH HHS/ -- NS07258/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1992 Oct 9;258(5080):307-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, College of Physicians and Surgeons, Columbia University, New York, NY 10032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1384130" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholine/metabolism/pharmacology ; Amino Acid Sequence ; Animals ; Cysteine/*chemistry ; Gene Expression ; Ion Channel Gating ; Ion Channels/*chemistry/physiology ; Mice ; Molecular Sequence Data ; Muscles/chemistry ; *Mutagenesis ; Oocytes/metabolism ; Receptors, Cholinergic/*chemistry/genetics ; Structure-Activity Relationship ; Sulfhydryl Reagents/pharmacology ; Thermodynamics ; Transfection ; Xenopus
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    Carnivorous plants: phylogeny and structural evolution (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-09-11
    Description: The carnivorous habit in flowering plants represents a grade of structural organization. Different morphological features associated with the attraction, trapping, and digestion of prey characterize a diversity of specialized forms, including the familiar pitcher and flypaper traps. Phylogenetic analysis of nucleotide sequence data from the plastic rbcL gene indicates that both carnivory and stereotyped trap forms have arisen independently in different lineages of angiosperms. Furthermore, these results demonstrate that flypaper traps share close common ancestry with all other trap forms. Recognition of these patterns of diversification may provide ideal, naturally occurring systems for studies of developmental processes underlying macromorphological evolution in angiosperms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Albert, V A -- Williams, S E -- Chase, M W -- New York, N.Y. -- Science. 1992 Sep 11;257(5076):1491-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1523408" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Biological Evolution ; Molecular Sequence Data ; *Phylogeny ; *Plant Physiological Phenomena ; Plants/*classification/genetics ; Polymerase Chain Reaction ; Restriction Mapping
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    Targeted degradation of c-Fos, but not v-Fos, by a phosphorylation-dependent signal on c-Jun (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-12-18
    Description: The proto-oncogene products c-Fos and c-Jun heterodimerize through their leucine zippers to form the AP-1 transcription factor. The transcriptional activity of the heterodimer is regulated by signal-dependent phosphorylation and dephosphorylation events. The stability of c-Fos was found to also be controlled by intracellular signal transduction. In transient expression and in vitro degradation experiments, the stability of c-Fos was decreased when the protein was dimerized with phosphorylated c-Jun. c-Jun protein isolated from phorbol ester-induced cells did not target c-Fos for degradation, which suggests that c-Fos is transiently stabilized after stimulation of cell growth. v-Fos protein, the retroviral counterpart of c-Fos, was not susceptible to degradation targeted by c-Jun.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Papavassiliou, A G -- Treier, M -- Chavrier, C -- Bohmann, D -- New York, N.Y. -- Science. 1992 Dec 18;258(5090):1941-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉European Molecular Biology Laboratory, Differentiation Program, Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1470918" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Codon/genetics ; HeLa Cells ; Humans ; Macromolecular Substances ; Molecular Sequence Data ; Oncogene Proteins v-fos/genetics/*metabolism ; Phosphorylation ; Protein Biosynthesis ; Proto-Oncogene Proteins c-fos/genetics/*metabolism ; Proto-Oncogene Proteins c-jun/genetics/*metabolism ; Rabbits ; Recombinant Proteins/metabolism ; Reticulocytes/metabolism ; Tetradecanoylphorbol Acetate/pharmacology ; Transcription, Genetic ; Transfection
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    Early humans in North America (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-04-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Emslie, S -- New York, N.Y. -- Science. 1992 Apr 24;256(5056):426-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1570501" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Hominidae ; Humans ; North America ; *Paleontology
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    Inactivation of the p34cdc2-cyclin B complex by the human WEE1 tyrosine kinase (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-09-25
    Description: Entry into mitosis in Schizosaccharomyces pombe is negatively regulated by the wee1+ gene, which encodes a protein kinase with serine-, theonine-, and tyrosine-phosphorylating activities. The wee1+ kinase negatively regulates mitosis by phosphorylating p34cdc2 on tyrosine 15, thereby inactivating the p34cdc2-cyclin B complex. The human homolog of the wee1+ gene (WEE1Hu) was overproduced in bacteria and assayed in an in vitro system. Unlike its fission yeast homolog, the product of the WEE1Hu gene encoded a tyrosine-specific protein kinase. The human WEE1 kinase phosphorylated the p34cdc2-cyclin B complex on tyrosine 15 but not on threonine 14 in vitro and inactivated the p34cdc2-cyclin B kinase. This inhibition was reversed by the human Cdc25C protein, which catalyzed the dephosphorylation of p34cdc2. These results indicate that the product of the WEE1Hu gene directly regulates the p34cdc2-cyclin B complex in human cells and that a kinase other than that encoded by WEE1Hu phosphorylates p34cdc2 on threonine 14.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parker, L L -- Piwnica-Worms, H -- New York, N.Y. -- Science. 1992 Sep 25;257(5078):1955-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Tufts University School of Medicine, Boston, MA 02111.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1384126" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; CDC2 Protein Kinase/antagonists & inhibitors/*metabolism ; *Cell Cycle ; *Cell Cycle Proteins ; Cyclins/antagonists & inhibitors/*metabolism ; Humans ; Macromolecular Substances ; Molecular Sequence Data ; *Nuclear Proteins ; Oligodeoxyribonucleotides/chemistry ; Phosphorylation ; Phosphotyrosine ; Protein Kinases/genetics/*metabolism ; Protein-Tyrosine Kinases/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Schizosaccharomyces pombe Proteins ; Tyrosine/analogs & derivatives/metabolism
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    Selection of drug-resistant bone marrow cells in vivo after retroviral transfer of human MDR1 (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-03
    Description: Experiments were performed to determine if retroviral-mediated transfer of the human multidrug resistance 1 gene (MDR1) into murine bone marrow cells would confer drug resistance to the cells and whether the MDR1 gene could be used as a dominant selectable marker in vivo. When mice transplanted with bone marrow cells containing a transferred MDR1 gene were treated with the cytotoxic drug taxol, a substantial enrichment for transduced bone marrow cells was observed. This demonstration of positive selection establishes the ability to amplify clones of transduced hematopoietic cells in vivo and suggests possible applications in human therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sorrentino, B P -- Brandt, S J -- Bodine, D -- Gottesman, M -- Pastan, I -- Cline, A -- Nienhuis, A W -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):99-103.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Clinical Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1352414" target="_blank"〉PubMed〈/a〉
    Keywords: Alkaloids/*pharmacology ; Antineoplastic Agents, Phytogenic/*pharmacology ; Base Sequence ; Bone Marrow/*physiology ; Bone Marrow Transplantation/*physiology ; DNA/genetics/isolation & purification ; Drug Resistance/*genetics ; Erythrocytes/physiology ; Genetic Vectors ; Hematopoietic Stem Cells/*cytology/drug effects ; Humans ; Molecular Sequence Data ; Oligodeoxyribonucleotides ; Paclitaxel ; Polymerase Chain Reaction/methods ; Proviruses/genetics ; Retroviridae/genetics ; *Transfection
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    Selective transmission of human immunodeficiency virus type-1 variants from mothers to infants (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-02-28
    Description: Multiple human immunodeficiency virus type-1 sequences from the V3 and V4-V5 regions of the envelope gene were analyzed from three mother-infant pairs. The infants' viral sequences were less diverse than those of their mothers. In two pairs, a proviral form infrequently found in the mother predominated in her infant. A conserved N-linked glycosylation site within the V3 region, present in each mother's sequence set, was absent in all of the infants' sequence sets. These findings demonstrate that a minor subset of maternal virus is transmitted to the infant.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolinsky, S M -- Wike, C M -- Korber, B T -- Hutto, C -- Parks, W P -- Rosenblum, L L -- Kunstman, K J -- Furtado, M R -- Munoz, J L -- AI-32535/AI/NIAID NIH HHS/ -- HD26619-01/HD/NICHD NIH HHS/ -- P01-25569/PHS HHS/ -- New York, N.Y. -- Science. 1992 Feb 28;255(5048):1134-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Northwestern University Medical School, Chicago, IL 60611.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1546316" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/congenital/microbiology/*transmission ; Amino Acid Sequence ; Base Sequence ; Female ; Genotype ; Glycosylation ; HIV Antigens/genetics ; HIV Envelope Protein gp120/genetics/immunology ; HIV-1/*genetics/immunology ; Humans ; Infant ; Maternal-Fetal Exchange ; Molecular Sequence Data ; Oligodeoxyribonucleotides/chemistry ; Polymerase Chain Reaction ; Pregnancy ; Selection, Genetic ; Sequence Alignment
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    Genes, patents, and product development (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-14
    Description: In the past year, the National Institutes of Health (NIH) has filed patent applications on more than 2750 partial complementary DNA sequences of unknown function. The rationale for the filings--that patent protection may be necessary to ensure that private firms are willing to invest in developing related products--rests on two premises: first, that NIH may obtain patent rights that will offer effective product monopolies to licensee firms, and second, that unless NIH obtains these rights now, firms will be unable to obtain a comparable degree of exclusivity by other means, such as by obtaining patents on their own subsequent innovations. Neither premise is clearly wrong, although both are subject to doubt in view of statements from industry representatives that the NIH patenting strategy will deter rather than promote product development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eisenberg, R S -- New York, N.Y. -- Science. 1992 Aug 14;257(5072):903-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Michigan Law School, Ann Arbor 48109.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1502556" target="_blank"〉PubMed〈/a〉
    Keywords: Biomedical Research ; Biotechnology ; DNA/*genetics ; *Federal Government ; *Genes ; Human Genome Project ; Humans ; National Institutes of Health (U.S.) ; *Patents as Topic ; United States
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    Gallo wins one--and loses one (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-06-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1992 Jun 5;256(5062):1391.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1604312" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome ; Ethics, Professional ; History, 20th Century ; Humans ; Jurisprudence ; National Institutes of Health (U.S.) ; Newspapers as Topic ; Paris ; Research/*standards ; Scientific Misconduct ; *Societies, Scientific ; United States
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    Protein oxidation and aging (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-28
    Description: A number of systems that generate oxygen free radicals catalyze the oxidative modification of proteins. Such modifications mark enzymes for degradation by cytosolic neutral alkaline proteases. Protein oxidation contributes to the pool of damaged enzymes, which increases in size during aging and in various pathological states. The age-related increase in amounts of oxidized protein may reflect the age-dependent accumulation of unrepaired DNA damage that, in a random manner, affects the concentrations or activities of numerous factors that govern the rates of protein oxidation and the degradation of oxidized protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stadtman, E R -- New York, N.Y. -- Science. 1992 Aug 28;257(5074):1220-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Biochemistry, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1355616" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/*physiology ; Animals ; Enzymes/physiology ; Gerbillinae ; Glutamate-Ammonia Ligase ; Humans ; Hydrogen Peroxide ; Oxidation-Reduction ; Proteins/*metabolism
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    A freeze-frame view of eukaryotic transcription during elongation and capping of nascent mRNA (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-02-21
    Description: Ribonuclease footprinting of nascent messenger RNA within ternary complexes of vaccinia RNA polymerase revealed an RNA binding site that encompasses an 18-nucleotide RNA segment. The dimensions of the binding site did not change as the polymerase moved along the template. Capping of the 5' end of the RNA was cotranscriptional and was confined to nascent chains 31 nucleotides or greater in length. Purified capping enzyme formed a binary complex with RNA polymerase in solution in the absence of nucleic acid. These findings suggest a mechanism for cotranscriptional establishment of messenger RNA identity in eukaryotes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hagler, J -- Shuman, S -- GM42498/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Feb 21;255(5047):983-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Molecular Biology, Sloan-Kettering Institute, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1546295" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cell-Free System ; DNA/chemistry ; Eukaryotic Cells ; In Vitro Techniques ; Molecular Sequence Data ; *RNA Caps ; RNA Polymerase II/metabolism ; RNA, Messenger/*biosynthesis ; Templates, Genetic ; Terminator Regions, Genetic ; Transcription Factors/physiology ; *Transcription, Genetic ; Vaccinia virus
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    Overlapping but nonidentical binding sites on CD2 for CD58 and a second ligand CD59 (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-06-26
    Description: The interaction of the T cell glycoprotein CD2 with one ligand, CD58, contributes to T cell function. We have identified CD59, a glycoprotein with complement-inhibitory function, as a second physiological ligand for CD2. Antibodies to CD59 inhibit CD2-dependent T cell activation in murine T cell hybridomas expressing human CD2. In an in vitro binding assay with purified CD58 and CD59, CD2+ cells bind not only immobilized CD58 but also CD59. With two complementary approaches, it was demonstrated that the binding sites on CD2 for CD58 and CD59 are overlapping but nonidentical. These observations suggest that direct interactions between CD2 and both CD58 and CD59 contribute to T cell activation and adhesion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hahn, W C -- Menu, E -- Bothwell, A L -- Sims, P J -- Bierer, B E -- AI28554/AI/NIAID NIH HHS/ -- HL36061/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1992 Jun 26;256(5065):1805-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Pediatric Oncology, Dana-Farber Cancer Institute, and Harvard Medical School, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1377404" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/*metabolism ; Antigens, CD2 ; Antigens, CD58 ; Antigens, CD59 ; Antigens, Differentiation, T-Lymphocyte/*metabolism ; Binding Sites ; Dose-Response Relationship, Drug ; Humans ; Hybridomas ; Immunity, Cellular ; In Vitro Techniques ; Membrane Glycoproteins/*metabolism ; Mice ; Receptors, Antigen, T-Cell/*physiology ; Receptors, Immunologic/*metabolism ; T-Lymphocytes/immunology
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    French officials panic over rare brain disease outbreak (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aldhous, P -- New York, N.Y. -- Science. 1992 Dec 4;258(5088):1571-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1455242" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/transmission ; Brain/pathology ; Creutzfeldt-Jakob Syndrome/*epidemiology/etiology/pathology ; France/epidemiology ; Government Regulation ; Growth Hormone/*adverse effects/therapeutic use ; Humans
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    Predicted structural similarities of the DNA binding domains of c-Myc and endonuclease Eco RI (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-01-24
    Description: The c-Myc oncoprotein belongs to a family of proteins whose DNA binding domains contain a basic region-helix-loop-helix (bHLH) motif. Systematic mutagenesis of c-Myc revealed that dimerized bHLH motifs formed a parallel four-helix bundle with the amino termini of helices 1 and 2 directed toward the inner and outer nucleotides of the DNA binding site, respectively. Both the basic region and the carboxyl-terminal end of the loop contributed to DNA binding specificity. The DNA binding domain of c-Myc may therefore be structurally similar to that of restriction endonuclease Eco RI.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Halazonetis, T D -- Kandil, A N -- New York, N.Y. -- Science. 1992 Jan 24;255(5043):464-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Research, Merck Sharp and Dohme Research Laboratories, West Point, PA 19486.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1734524" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Binding Sites ; DNA-Binding Proteins/*chemistry ; Deoxyribonuclease EcoRI/*chemistry ; Humans ; Macromolecular Substances ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Protein Conformation ; Proto-Oncogene Proteins c-myc/*chemistry ; Sequence Alignment ; Transcription Factors/chemistry
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    The Autographa californica baculovirus genome: evidence for multiple replication origins (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-09-04
    Description: The Autographa californica multinucleocapsid nuclear polyhedrosis virus (AcMNPV), which is used for the overexpression of eukaryotic genes and is being engineered for possible use as a viral insecticide, has a circular, supercoiled genome of approximately 128 kilobases. Despite its widespread use, little is known about the mechanism by which AcMNPV replicates. Evidence is presented in this report that AcMNPV origins of DNA replication are repeated sequences each containing several closely related imperfect palindromes that are present in six regions distributed around the genome. Although AcMNPV infection-dependent plasmid replication was initiated by a single complete palindrome, the amount of replication was substantially increased in plasmids containing six or eight palindromes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pearson, M -- Bjornson, R -- Pearson, G -- Rohrmann, G -- AI21973/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1992 Sep 4;257(5075):1382-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Agricultural Chemistry, Oregon State University, Corvallis 97331.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1529337" target="_blank"〉PubMed〈/a〉
    Keywords: Baculoviridae/*genetics ; Base Sequence ; *DNA Replication ; DNA, Superhelical/chemistry/*genetics ; DNA, Viral/chemistry/*genetics ; Genes, Viral/*genetics ; Molecular Sequence Data ; Mutagenesis ; Nucleic Acid Hybridization ; Plasmids ; Repetitive Sequences, Nucleic Acid ; Transfection ; *Virus Replication
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    Evolution of HIV in Africa (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ewald, P W -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1352412" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*microbiology ; Africa, Western ; Biological Evolution ; Deltaretrovirus Infections/*microbiology ; HIV Infections/*microbiology ; HIV-1/genetics/pathogenicity/*physiology ; HIV-2/genetics/pathogenicity/*physiology ; Humans ; Virulence
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    Lateralization of phonetic and pitch discrimination in speech processing (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-05-08
    Description: Cerebral activation was measured with positron emission tomography in ten human volunteers. The primary auditory cortex showed increased activity in response to noise bursts, whereas acoustically matched speech syllables activated secondary auditory cortices bilaterally. Instructions to make judgments about different attributes of the same speech signal resulted in activation of specific lateralized neural systems. Discrimination of phonetic structure led to increased activity in part of Broca's area of the left hemisphere, suggesting a role for articulatory recoding in phonetic perception. Processing changes in pitch produced activation of the right prefrontal cortex, consistent with the importance of right-hemisphere mechanisms in pitch perception.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zatorre, R J -- Evans, A C -- Meyer, E -- Gjedde, A -- New York, N.Y. -- Science. 1992 May 8;256(5058):846-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Quebec, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589767" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Auditory Cortex/anatomy & histology/*physiology/radionuclide imaging ; Functional Laterality ; Humans ; Magnetic Resonance Imaging ; *Phonetics ; *Pitch Discrimination ; Reference Values ; Speech ; *Speech Perception ; Tomography, Emission-Computed/methods
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    Dimerization of a specific DNA-binding protein on the DNA (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-01-10
    Description: Many specific DNA-binding proteins bind to sites with dyad symmetry, and the bound form of the protein is a dimer. For some proteins, dimers form in solution and bind to DNA. LexA repressor of Escherichia coli has been used to test an alternative binding model in which two monomers bind sequentially. This model predicts that a repressor monomer should bind with high specificity to an isolated operator half-site. Monomer binding to a half-site was observed. A second monomer bound to an intact operator far more tightly than the first monomer; this cooperativity arose from protein-protein contacts.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, B -- Little, J W -- GM24178/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Jan 10;255(5041):203-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Arizona, Tucson 85721.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1553548" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/*metabolism ; Base Sequence ; Binding Sites ; DNA, Bacterial/*metabolism ; DNA-Binding Proteins/*metabolism ; Deoxyribonucleases ; Escherichia coli/*metabolism ; Kinetics ; Macromolecular Substances ; Models, Structural ; Molecular Sequence Data ; Oligodeoxyribonucleotides/metabolism ; Operon ; Rec A Recombinases/genetics ; Repressor Proteins/metabolism ; *Serine Endopeptidases
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    Body-wall muscle formation in Caenorhabditis elegans embryos that lack the MyoD homolog hlh-1 (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-04-10
    Description: The myoD family of DNA binding proteins has been implicated in the control of myogenesis in a variety of organisms. Searches for homologs in the nematode Caenorhabditis elegans yielded only one gene, designated hlh-1, expressed in body-wall muscle cells and their precursors. To assess the role of hlh-1 in C. elegans myogenesis, genetic deficiencies spanning the hlh-1 locus were isolated after gamma irradiation. Embryos homozygous for these deficiencies exhibited extensive body-wall muscle differentiation, including expression of several characteristic myofilament proteins and weak contracile behavior. Thus, zygotic hlh-1 expression was not required for body-wall muscle precursors to adopt muscle cell fates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, L -- Krause, M -- Draper, B -- Weintraub, H -- Fire, A -- R01 GM037706/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Apr 10;256(5054):240-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Carnegie Institution of Washington, Baltimore, MD 21210.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1314423" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Caenorhabditis/embryology/genetics/*physiology ; Cell Differentiation ; *Chromosome Deletion ; Chromosome Mapping ; Crosses, Genetic ; DNA/genetics/isolation & purification ; DNA-Binding Proteins/*genetics ; Embryo, Nonmammalian/cytology/physiology/radiation effects ; Gamma Rays ; Homozygote ; Molecular Sequence Data ; Multigene Family ; Muscle Proteins/*genetics ; Muscles/*embryology/physiology/radiation effects ; MyoD Protein ; Oligodeoxyribonucleotides ; Polymerase Chain Reaction ; Sequence Homology, Nucleic Acid
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    Isolation of two genes that encode subunits of the yeast transcription factor IIA (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-02-28
    Description: The yeast transcription factor IIA (TFIIA), a component of the basal transcription machinery of RNA polymerase II and implicated in vitro in regulation of basal transcription, is composed of two subunits of 32 and 13.5 kilodaltons. The genes that encode these subunits, termed TOA1 and TOA2, respectively, were cloned. Neither gene shares obvious sequence similarity with the other or with any other previously identified genes. The recombinant factor bound to a TATA binding protein-DNA complex and complemented yeast and mammalian in vitro transcription systems depleted of TFIIA. Both the TOA1 and TOA2 genes are essential for growth of yeast.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ranish, J A -- Lane, W S -- Hahn, S -- New York, N.Y. -- Science. 1992 Feb 28;255(5048):1127-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fred Hutchinson Cancer Research Center, Seattle, WA 98104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1546313" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cloning, Molecular ; DNA Mutational Analysis ; DNA-Binding Proteins/genetics ; *Genes, Fungal ; Molecular Sequence Data ; Recombinant Proteins/metabolism ; Saccharomyces cerevisiae/*genetics ; *Saccharomyces cerevisiae Proteins ; Transcription Factor TFIIA ; Transcription Factors/*genetics ; Transcription, Genetic
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    Dual-target inhibition of HIV-1 in vitro by means of an adeno-associated virus antisense vector (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-12-07
    Description: An adeno-associated virus vector encoding an antisense RNA was used to transduce stable intracellular resistance to human immunodeficiency virus-1 (HIV-1) in human hemopoietic and non-hemopoietic cell lines. The antisense targets are present in all HIV-1 transcripts and include the TAR sequence, which is critical for transcription and virus replication, and the polyadenylation signal. Cell lines expressing antisense RNA showed up to 95 percent inhibition of gene expression directed by the HIV-1 long terminal repeat and greater than 99 percent reduction in infectious HIV-1 production, with no detectable cellular toxicity. Because of their efficient transcription and inability to recombine with HIV-1, adeno-associated virus vectors represent a promising form of anti-retroviral gene therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chatterjee, S -- Johnson, P R -- Wong, K K Jr -- New York, N.Y. -- Science. 1992 Nov 27;258(5087):1485-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health, Rockville, MD 20852.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1359646" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; CD4-Positive T-Lymphocytes/microbiology ; Cell Line ; Chloramphenicol O-Acetyltransferase/genetics ; Dependovirus/*genetics ; Drug Resistance, Microbial/genetics ; Gene Products, tat/genetics ; Genetic Vectors/*genetics ; HIV Long Terminal Repeat/genetics ; HIV-1/*genetics/physiology ; Humans ; Molecular Sequence Data ; Neomycin/pharmacology ; RNA, Antisense/*genetics ; RNA, Messenger/genetics ; RNA, Viral/genetics ; Transfection ; Virus Replication/genetics ; tat Gene Products, Human Immunodeficiency Virus
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    A multifunctional aqueous channel formed by CFTR (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-11-27
    Description: The cystic fibrosis gene product (CFTR) is a complex protein that functions as an adenosine 3,5-monophosphate (cAMP)-stimulated ion channel and possibly as a regulator of intracellular processes. In order to determine whether the CFTR molecule contains a functional aqueous pathway, anion, water, and urea transport were measured in Xenopus oocytes expressing CFTR. Cyclic AMP agonists induced a Cl- conductance of 94 microsiemens and an increase in water permeability of 4 x 10(-4) centimeter per second that was inhibited by a Cl- channel blocker and was dependent on anion composition. CFTR has a calculated single channel water conductance of 9 x 10(-13) cubic centimeter per second, suggesting a pore-like aqueous pathway. Oocytes expressing CFTR also showed cAMP-stimulated transport of urea but not the larger solute sucrose. Thus CFTR contains a cAMP-stimulated aqueous pore that can transport anions, water, and small solutes. The results also provide functional evidence for water movement through an ion channel.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hasegawa, H -- Skach, W -- Baker, O -- Calayag, M C -- Lingappa, V -- Verkman, A S -- DK35124/DK/NIDDK NIH HHS/ -- DK43840/DK/NIDDK NIH HHS/ -- HL42368/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1992 Nov 27;258(5087):1477-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco 94143-0532.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1279809" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Biological Transport/physiology ; Chlorides/metabolism ; Cyclic AMP/physiology ; Cystic Fibrosis Transmembrane Conductance Regulator ; Female ; Humans ; In Vitro Techniques ; Ion Channels/*physiology ; Membrane Proteins/*physiology ; Molecular Sequence Data ; Oocytes ; Urea/metabolism ; Water/metabolism ; Xenopus
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    Bench to bedside: the glutamate connection (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-10-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Choi, D W -- New York, N.Y. -- Science. 1992 Oct 9;258(5080):241-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1357748" target="_blank"〉PubMed〈/a〉
    Keywords: Glutamates/*physiology ; Glutamic Acid ; Humans ; Nervous System Diseases/physiopathology ; Receptors, AMPA ; Receptors, Glutamate/genetics/*physiology ; Receptors, N-Methyl-D-Aspartate/physiology ; Receptors, Neurotransmitter/physiology
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    Interleukin-8 as a macrophage-derived mediator of angiogenesis (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-12-11
    Description: Angiogenic factors produced by monocytes-macrophages are involved in the pathogenesis of chronic inflammatory disorders characterized by persistent angiogenesis. The possibility was tested that interleukin-8 (IL-8), which is a cytokine that is chemotactic for lymphocytes and neutrophils, is also angiogenic. Human recombinant IL-8 was potently angiogenic when implanted in the rat cornea and induced proliferation and chemotaxis of human umbilical vein endothelial cells. Angiogenic activity present in the conditioned media of inflamed human rheumatoid synovial tissue macrophages or lipopolysaccharide-stimulated blood monocytes was equally blocked by antibodies to either IL-8 or tumor necrosis factor-alpha. An IL-8 antisense oligonucleotide specifically blocked the production of monocyte-induced angiogenic activity. These data suggest a function for macrophage-derived IL-8 in angiogenesis-dependent disorders such as rheumatoid arthritis, tumor growth, and wound repair.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koch, A E -- Polverini, P J -- Kunkel, S L -- Harlow, L A -- DiPietro, L A -- Elner, V M -- Elner, S G -- Strieter, R M -- AR30692/AR/NIAMS NIH HHS/ -- AR41492/AR/NIAMS NIH HHS/ -- HL39926/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1992 Dec 11;258(5089):1798-801.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Northwestern University Medical School, Chicago, IL 60611.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1281554" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arthritis, Rheumatoid/physiopathology ; Base Sequence ; Cell Division/drug effects ; Cells, Cultured ; Chemotaxis/*drug effects ; Cornea/*drug effects/physiology ; Dose-Response Relationship, Drug ; Endothelium, Vascular/drug effects/*physiology ; Fibroblast Growth Factor 2/pharmacology ; Humans ; Interleukin-8/genetics/*pharmacology ; Macrophages/*physiology ; Mice ; Molecular Sequence Data ; Monocytes/physiology ; *Neovascularization, Pathologic ; Oligonucleotides, Antisense/*pharmacology ; Rabbits ; Rats ; Recombinant Proteins/pharmacology ; Synovial Fluid/physiology ; Tumor Necrosis Factor-alpha/genetics ; Umbilical Veins
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    Animal models point the way to human clinical trials (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-05-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolberg, R -- New York, N.Y. -- Science. 1992 May 8;256(5058):772-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589756" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Clinical Trials as Topic ; Disease Models, Animal ; Genetic Diseases, Inborn/genetics/*therapy ; *Genetic Therapy ; Humans ; Hypoxanthine Phosphoribosyltransferase/deficiency/genetics ; Lesch-Nyhan Syndrome/genetics/therapy ; Research Design
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    Triplet repeat mutations in human disease (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-05-18
    Description: Triplet repeats are the sites of mutation in three human heritable disorders, spinal and bulbar muscular atrophy (SBMA), fragile X syndrome, and myotonic dystrophy (DM). These repeats are GC-rich and highly polymorphic in the normal population. Fragile X syndrome and DM are examples of diseases in which premutation alleles cause little or no disease in the individual, but give rise to significantly amplified repeats in affected progeny. This newly identified mechanism of mutation has, so far, been identified in two of the most common heritable disorders, fragile X syndrome and DM, and one rare disease, SBMA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Caskey, C T -- Pizzuti, A -- Fu, Y H -- Fenwick, R G Jr -- Nelson, D L -- 1R01HD29256/HD/NICHD NIH HHS/ -- P30-HG00210/HG/NHGRI NIH HHS/ -- P30HD24064/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1992 May 8;256(5058):784-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Molecular Genetics, Baylor College of Medicine, Houston, TX 77030.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589758" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Fragile X Syndrome/*genetics/physiopathology ; Genetic Diseases, Inborn/*genetics/physiopathology ; Humans ; Male ; Muscular Atrophy, Spinal/*genetics/physiopathology ; *Mutation ; Myotonic Dystrophy/*genetics/physiopathology ; Pedigree ; Repetitive Sequences, Nucleic Acid
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    Cytoplasmic domain heterogeneity and functions of IgG Fc receptors in B lymphocytes (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-06-26
    Description: B lymphocytes and macrophages express closely related immunoglobulin G (IgG) Fc receptors (Fc gamma RII) that differ only in the structures of their cytoplasmic domains. Because of cell type-specific alternative messenger RNA splicing, B-cell Fc gamma RII contains an insertion of 47 amino acids that participates in determining receptor function in these cells. Transfection of an Fc gamma RII-negative B-cell line with complementary DNA's encoding the two splice products and various receptor mutants indicated that the insertion was responsible for preventing both Fc gamma RII-mediated endocytosis and Fc gamma RII-mediated antigen presentation. The insertion was not required for Fc gamma RII to modulate surface immunoglobulin-triggered B-cell activation. Instead, regulation of activation involved a region of the cytoplasmic domain common to both the lymphocyte and macrophage receptor isoforms. In contrast, the insertion did contribute to the formation of caps in response to receptor cross-linking, consistent with suggestions that the lymphocyte but not macrophage form of the receptor can associate with the detergent-insoluble cytoskeleton.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Amigorena, S -- Bonnerot, C -- Drake, J R -- Choquet, D -- Hunziker, W -- Guillet, J G -- Webster, P -- Sautes, C -- Mellman, I -- Fridman, W H -- New York, N.Y. -- Science. 1992 Jun 26;256(5065):1808-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire d'Immunologie Cellulaire et Clinique, INSERM U 255, Institut Curie, Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1535455" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antigen-Antibody Complex/metabolism ; Antigen-Antibody Reactions/genetics/immunology ; Antigens, CD/genetics/*immunology ; Antigens, Differentiation/genetics/*immunology ; B-Lymphocytes/*immunology ; Calcium/metabolism ; *DNA-Binding Proteins ; Dose-Response Relationship, Immunologic ; Endocytosis/genetics/immunology ; Humans ; Immunohistochemistry ; Lymphocyte Activation/immunology ; Microscopy, Electron ; Molecular Sequence Data ; Receptors, Fc/genetics/*immunology ; Receptors, IgG ; Repressor Proteins/pharmacology ; Transcription Factors/pharmacology ; Transfection ; Viral Proteins ; Viral Regulatory and Accessory Proteins
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    Science is great, but scientists are still people (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kornberg, A -- New York, N.Y. -- Science. 1992 Aug 14;257(5072):859.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1502544" target="_blank"〉PubMed〈/a〉
    Keywords: *Behavior ; Humans ; Research/*standards ; Science/*standards ; Scientific Misconduct
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    Reversal of integration and DNA splicing mediated by integrase of human immunodeficiency virus (1992)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1992-02-07
    Description: In retroviral integration, the viral integration protein (integrase) mediates a concerted DNA cleavage-ligation reaction in which the target DNA is cleaved and the resulting 5' ends of target DNA are joined to the 3' ends of viral DNA. Through an oligonucleotide substrate that mimics the recombination intermediate formed by this initial cleavage-ligation reaction, the purified integrase of human immunodeficiency virus was shown to promote the same reaction in reverse, a process called disintegration. Analysis of a set of structurally related substrates showed that integrase could promote a range of DNA cleavage-ligation reactions. When the viral DNA component of the disintegration substrate was single-stranded, integrase could mediate a DNA splicing reaction analogous to RNA splicing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chow, S A -- Vincent, K A -- Ellison, V -- Brown, P O -- AI27205/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1992 Feb 7;255(5045):723-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Stanford University Medical Center, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1738845" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; DNA/chemistry/*metabolism ; DNA Nucleotidyltransferases/*metabolism ; DNA, Viral/chemistry/*metabolism ; Esterification ; HIV-1/*enzymology/genetics ; Integrases ; Molecular Sequence Data ; RNA Splicing
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    Identification of a protein that binds to the SH3 region of Abl and is similar to Bcr and GAP-rho (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-07
    Description: A Src homology 3 (SH3) region is a sequence of approximately 50 amino acids found in many nonreceptor tyrosine kinases and other proteins. Deletion of the SH3 region from the protein encoded by the c-abl proto-oncogene activates the protein's transforming capacity, thereby suggesting the participation of the SH3 region in the negative regulation of transformation. A complementary DNA was isolated that encoded a protein, 3BP-1, to which the SH3 region of Abl bound with high specificity and to which SH3 regions from other proteins bound differentially. The sequence of the 3BP-1 protein is similar to that of a COOH-terminal segment of Bcr and to guanosine triphosphatase-activating protein (GAP)-rho, which suggests that it might have GAP activity for Ras-related proteins. The 3BP-1 protein may therefore be a mediator of SH3 function in transformation inhibition and may link tyrosine kinases to Ras-related proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cicchetti, P -- Mayer, B J -- Thiel, G -- Baltimore, D -- A107233/PHS HHS/ -- CA 08875/CA/NCI NIH HHS/ -- CA51462/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1992 Aug 7;257(5071):803-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rockefeller University, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1379745" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Amino Acid Sequence ; Animals ; Binding Sites ; Chimera ; Cloning, Molecular ; GTPase-Activating Proteins ; Gene Library ; *Genes, abl ; *Genes, src ; Glutathione Transferase/genetics/metabolism ; Mice ; Molecular Sequence Data ; Oncogene Proteins/genetics/*metabolism ; Plasmids ; Polymerase Chain Reaction/methods ; Prosencephalon/physiology ; Protein-Tyrosine Kinases/*metabolism ; Proteins/*metabolism ; *Proto-Oncogene Proteins ; Proto-Oncogene Proteins c-abl/genetics/*metabolism ; Proto-Oncogene Proteins c-bcr ; Proto-Oncogene Proteins pp60(c-src)/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Restriction Mapping ; Rho Factor/*metabolism ; Sequence Homology, Nucleic Acid ; ras GTPase-Activating Proteins
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    Women in science: from panes to ceilings (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-03-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Healy, B -- New York, N.Y. -- Science. 1992 Mar 13;255(5050):1333.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1542782" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Humans ; Research Personnel/*statistics & numerical data ; Science/*manpower ; United States ; Women, Working/*statistics & numerical data
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    What if Minkowski had been ageusic? An alternative angle on diabetes (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-10-30
    Description: Despite decades of intensive investigation, the basic pathophysiological mechanisms responsible for the metabolic derangements associated with diabetes mellitus have remained elusive. Explored here is the possibility that traditional concepts in this area might have carried the wrong emphasis. It is suggested that the phenomena of insulin resistance and hyperglycemia might be more readily understood if viewed in the context of underlying abnormalities of lipid metabolism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McGarry, J D -- DK11313/DK/NIDDK NIH HHS/ -- DK18573/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1992 Oct 30;258(5083):766-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas 75235.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439783" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Hydroxybutyric Acid ; Acetoacetates/blood ; Adipose Tissue/metabolism ; Blood Glucose/metabolism ; Diabetes Mellitus, Type 1/*metabolism ; Diabetes Mellitus, Type 2/genetics/*metabolism ; Fatty Acids, Nonesterified/blood/metabolism ; Glucose Tolerance Test ; Humans ; Hydroxybutyrates/blood ; Insulin/blood ; Insulin Resistance ; Islets of Langerhans/physiopathology ; Ketone Bodies/blood/metabolism ; Lipid Metabolism ; Lipoproteins, VLDL/biosynthesis ; Liver/metabolism ; Triglycerides/metabolism
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    Liver transplants good for brains (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-03-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1992 Mar 27;255(5052):1638.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1553551" target="_blank"〉PubMed〈/a〉
    Keywords: Cognition/*physiology ; Humans ; Liver Diseases, Alcoholic/physiopathology/*surgery ; *Liver Transplantation ; Time Factors
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  • 83
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    Human origins and analysis of mitochondrial DNA sequences (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hedges, S B -- Kumar, S -- Tamura, K -- Stoneking, M -- GM 20293-20/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Feb 7;255(5045):737-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1738849" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Base Sequence ; *Biological Evolution ; DNA, Mitochondrial/*chemistry ; Humans ; Phylogeny
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  • 84
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    Converting trypsin to chymotrypsin: the role of surface loops (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-03-06
    Description: Trypsin (Tr) and chymotrypsin (Ch) have similar tertiary structures, yet Tr cleaves peptides at arginine and lysine residues and Ch prefers large hydrophobic residues. Although replacement of the S1 binding site of Tr with the analogous residues of Ch is sufficient to transfer Ch specificity for ester hydrolysis, specificity for amide hydrolysis is not transferred. Trypsin is converted to a Ch-like protease when the binding pocket alterations are further modified by exchange of the Ch surface loops 185 through 188 and 221 through 225 for the analogous Tr loops. These loops are not structural components of either the S1 binding site or the extended substrate binding sites. This mutant enzyme is equivalent to Ch in its catalytic rate, but its substrate binding is impaired. Like Ch, this mutant utilizes extended substrate binding to accelerate catalysis, and substrate discrimination occurs during the acylation step rather than in substrate binding.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hedstrom, L -- Szilagyi, L -- Rutter, W J -- DK21344/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1992 Mar 6;255(5049):1249-53.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Hormone Research Institute, University of California, San Francisco 94143-0534.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1546324" target="_blank"〉PubMed〈/a〉
    Keywords: Acylation ; Amino Acid Sequence ; Base Sequence ; Binding Sites ; Chymotrypsin/*chemistry/metabolism ; Hydrolysis ; Kinetics ; Models, Molecular ; Molecular Sequence Data ; Molecular Structure ; Mutagenesis, Site-Directed ; Protein Conformation ; Substrate Specificity ; Trypsin/*chemistry/genetics/metabolism
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    NIH to size up growth hormone trials (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, R -- 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/1496390" target="_blank"〉PubMed〈/a〉
    Keywords: Bioethics ; Body Height ; Child ; Growth Disorders/*drug therapy ; Growth Hormone/adverse effects/*therapeutic use ; Humans ; National Institutes of Health (U.S.) ; United States
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  • 86
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    Panel nixes Congo trials as AIDS source (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-10-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1992 Oct 30;258(5083):738-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439779" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*etiology ; Congo ; Drug Contamination ; Humans ; *Poliovirus Vaccine, Oral
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    Forensic DNA typing (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-02-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cleveland, D W -- New York, N.Y. -- Science. 1992 Feb 28;255(5048):1052; author reply 1052-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1546301" target="_blank"〉PubMed〈/a〉
    Keywords: DNA Fingerprinting/*methods ; Forensic Medicine/*methods ; Humans ; Publishing/standards
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  • 88
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    Molecular cloning of the interleukin-1 beta converting enzyme (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-04-03
    Description: Interleukin-1 beta (IL-1 beta) mediates a wide range of immune and inflammatory responses. The active cytokine is generated by proteolytic cleavage of an inactive precursor. A complementary DNA encoding a protease that carries out this cleavage has been cloned. Recombinant expression in COS-7 cells enabled the cells to process precursor IL-1 beta to the mature form. Sequence analysis indicated that the enzyme itself may undergo proteolytic processing. The gene encoding the protease was mapped to chromosomal band 11q23, a site frequently involved in rearrangement in human cancers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cerretti, D P -- Kozlosky, C J -- Mosley, B -- Nelson, N -- Van Ness, K -- Greenstreet, T A -- March, C J -- Kronheim, S R -- Druck, T -- Cannizzaro, L A -- New York, N.Y. -- Science. 1992 Apr 3;256(5053):97-100.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Immunex Corporation, Seattle, WA 98101.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1373520" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Caspase 1 ; Cell Line ; Chromosome Banding ; *Chromosomes, Human, Pair 11 ; Cloning, Molecular ; Enzyme Precursors/biosynthesis/*genetics/isolation & purification ; Humans ; Metalloendopeptidases/biosynthesis/*genetics/isolation & purification ; Molecular Sequence Data ; Neutrophils/enzymology ; Oligodeoxyribonucleotides ; Poly A/genetics/isolation & purification ; Polymerase Chain Reaction/methods ; RNA/genetics/isolation & purification ; RNA, Messenger/genetics ; Recombinant Proteins/biosynthesis/isolation & purification ; Transfection
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    Antisense and antigene properties of peptide nucleic acids (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-11-27
    Description: Peptide nucleic acids (PNAs) are polyamide oligomers that can strand invade duplex DNA, causing displacement of one DNA strand and formation of a D-loop. Binding of either a T10 PNA or a mixed sequence 15-mer PNA to the transcribed strand of a G-free transcription cassette caused 90 to 100 percent site-specific termination of pol II transcription elongation. When a T10 PNA was bound on the nontranscribed strand, site-specific inhibition never exceeded 50 percent. Binding of PNAs to RNA resulted in site-specific termination of both reverse transcription and in vitro translation, precisely at the position of the PNA.RNA heteroduplex. Nuclear microinjection of cells constitutively expressing SV40 large T antigen (T Ag) with either a 15-mer or 20-mer PNA targeted to the T Ag messenger RNA suppressed T Ag expression. This effect was specific in that there was no reduction in beta-galactosidase expression from a coinjected expression vector and no inhibition of T Ag expression after microinjection of a 10-mer PNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hanvey, J C -- Peffer, N J -- Bisi, J E -- Thomson, S A -- Cadilla, R -- Josey, J A -- Ricca, D J -- Hassman, C F -- Bonham, M A -- Au, K G -- New York, N.Y. -- Science. 1992 Nov 27;258(5087):1481-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Glaxo Inc. Research Institute, Research Triangle Park, NC 27709.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1279811" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Polyomavirus Transforming/genetics ; Base Sequence ; DNA/*metabolism ; Deoxyribonuclease HindIII/antagonists & inhibitors ; Gene Expression/drug effects ; HeLa Cells ; Humans ; In Vitro Techniques ; Molecular Sequence Data ; Oligodeoxyribonucleotides/*metabolism/pharmacology ; Oligonucleotides, Antisense/*metabolism/pharmacology ; *Peptide Nucleic Acids ; Plasmids ; Protein Biosynthesis/drug effects ; RNA/metabolism ; Rabbits ; Rats ; Transcription, Genetic/drug effects
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    Human gene therapy (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-05-08
    Description: Human gene therapy is a procedure that is being used in an attempt to treat genetic and other diseases. Eleven clinical protocols are under way at the present time, each with scientific and clinical objectives. Human genetic engineering raises unique safety, social, and ethical concerns.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, W F -- New York, N.Y. -- Science. 1992 May 8;256(5058):808-13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589762" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Deaminase/deficiency/*genetics ; Bioethics ; Clinical Trials as Topic ; Federal Government ; Female ; Genetic Diseases, Inborn ; Genetic Engineering ; *Genetic Therapy ; Government Regulation ; Humans ; Male ; Neoplasms/genetics/therapy ; Risk Assessment ; Safety ; Social Responsibility
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    Association of cdk2 kinase with the transcription factor E2F during S phase (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-02-28
    Description: The transcription factor E2F controls the expression of several proliferation-related genes and is a target of the adenovirus E1A oncogene. In human cells, both cyclin A and the cdk2 protein kinase were found in complexes with E2F. Although the total amounts of cdk2 were constant in the cell cycle, binding to E2F was detected only when cells entered S phase, a time when the cdk2 kinase is activated. These data suggest that the interaction between cdk2 and E2F requires an active kinase that has cyclin A as a targeting component.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pagano, M -- Draetta, G -- Jansen-Durr, P -- New York, N.Y. -- Science. 1992 Feb 28;255(5048):1144-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉European Molecular Biology Laboratory, Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1312258" target="_blank"〉PubMed〈/a〉
    Keywords: Adenovirus Early Proteins ; Base Sequence ; *CDC2-CDC28 Kinases ; *Carrier Proteins ; Cell Cycle ; *Cell Cycle Proteins ; Cyclin-Dependent Kinase 2 ; *Cyclin-Dependent Kinases ; Cyclins/*metabolism ; *DNA-Binding Proteins ; E2F Transcription Factors ; HeLa Cells ; Humans ; Macromolecular Substances ; Molecular Sequence Data ; Oligodeoxyribonucleotides/chemistry ; Oncogene Proteins, Viral/genetics ; Protamine Kinase/metabolism ; Protein Kinases/*metabolism ; *Protein-Serine-Threonine Kinases ; Retinoblastoma-Binding Protein 1 ; *S Phase ; Transcription Factor DP1 ; Transcription Factors/*metabolism
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  • 92
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    Crystal structure of transforming growth factor-beta 2: an unusual fold for the superfamily (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-17
    Description: The transforming growth factors-beta (TGF-beta 1 through -beta 5) are a family of homodimeric cytokines that regulate proliferation and function in many cell types. Family members have 66 to 80% sequence identity and nine strictly conserved cysteines. A crystal structure of a member of this family, TGF-beta 2, has been determined at 2.1 angstrom (A) resolution and refined to an R factor of 0.172. The monomer lacks a well-defined hydrophobic core and displays an unusual elongated nonglobular fold with dimensions of approximately 60 A by 20 A by 15 A. Eight cysteines form four intrachain disulfide bonds, which are clustered in a core region forming a network complementary to the network of hydrogen bonds. The dimer is stabilized by the ninth cysteine, which forms an interchain disulfide bond, and by two identical hydrophobic interfaces. Sequence profile analysis of other members of the TGF-beta superfamily, including the activins, inhibins, and several developmental factors, imply that they also adopt the TGF-beta fold.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Daopin, S -- Piez, K A -- Ogawa, Y -- Davies, D R -- New York, N.Y. -- Science. 1992 Jul 17;257(5068):369-73.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Biology, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1631557" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Crystallography ; Drosophila ; Humans ; Mice ; Models, Molecular ; Molecular Conformation ; Molecular Structure ; Transforming Growth Factor beta/*chemistry ; Xenopus laevis
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    Fatal familial insomnia and familial Creutzfeldt-Jakob disease: disease phenotype determined by a DNA polymorphism (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-10-30
    Description: Fatal familial insomnia (FFI) and a subtype of familial Creutzfeldt-Jakob disease (CJD), two clinically and pathologically distinct diseases, are linked to the same mutation at codon 178 (Asn178) of the prion protein gene. The possibility that a second genetic component modified the phenotypic expression of the Asn178 mutation was investigated. FFI and the familial CJD subtype segregated with different genotypes determined by the Asn178 mutation and the methionine-valine polymorphism at codon 129. The Met129, Asn178 allele segregated with FFI in all 15 affected members of five kindreds whereas the Val129, Asn178 allele segregated with the familial CJD subtype in all 15 affected members of six kindreds. Thus, two distinct disease phenotypes linked to a single pathogenic mutation can be determined by a common polymorphism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldfarb, L G -- Petersen, R B -- Tabaton, M -- Brown, P -- LeBlanc, A C -- Montagna, P -- Cortelli, P -- Julien, J -- Vital, C -- Pendelbury, W W -- 1 R01 AGNS08155-02/AG/NIA NIH HHS/ -- AG-08012-02/AG/NIA NIH HHS/ -- NS 14509-13/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1992 Oct 30;258(5083):806-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Central Nervous System Studies, National Institute of Neurological Diseases and Stroke, National Institutes of Health, Bethesda, Maryland 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439789" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Asparagine/genetics ; Chromosomes, Human, Pair 20 ; Codon ; Creutzfeldt-Jakob Syndrome/*genetics ; DNA/*genetics ; Genotype ; Humans ; Middle Aged ; *Mutation ; *Phenotype ; *Polymorphism, Genetic ; Prion Diseases/*genetics ; Prions/genetics ; Valine/genetics
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    The physiology of memory: recordings of things past (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-10-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Desimone, R -- New York, N.Y. -- Science. 1992 Oct 9;258(5080):245-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Neuropsychology, National Institute of Mental Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1411523" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*physiology ; Humans ; Memory/*physiology ; Neurons/physiology ; Sense Organs/physiology ; Temporal Lobe/physiology
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    Regulatory elements that control the lineage-specific expression of myoD (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-05-04
    Description: The molecular basis of skeletal muscle lineage determination was investigated by analyzing DNA control elements that regulate the myogenic determination gene myoD. A distal enhancer was identified that positively regulates expression of the human myoD gene. The myoD enhancer and promoter were active in myogenic and several nonmyogenic cell lines. In transgenic mouse embryos, however, the myoD enhancer and promoter together directed expression of a lacZ transgene specifically to the skeletal muscle lineage. These data suggest that during development myoD is regulated by mechanisms that restrict accessibility of myoD control elements to positive trans-acting factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldhamer, D J -- Faerman, A -- Shani, M -- Emerson, C P Jr -- CA-06927/CA/NCI NIH HHS/ -- HD-07796/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1992 Apr 24;256(5056):538-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Cancer Research, Fox Chase Cancer Center, Philadelphia, PA 19111.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1315077" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cell Line ; Chloramphenicol O-Acetyltransferase/genetics ; Cloning, Molecular ; Enhancer Elements, Genetic ; *Gene Expression Regulation ; Humans ; Mice ; Mice, Transgenic ; Muscle Proteins/*genetics ; Muscles/embryology/metabolism ; MyoD Protein ; Promoter Regions, Genetic ; Transcription, Genetic ; Transfection ; Tumor Cells, Cultured ; beta-Galactosidase/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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  • 96
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    Functional transcription elongation complexes from synthetic RNA-DNA bubble duplexes (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-11-20
    Description: A synthetic RNA-DNA bubble duplex construct intended to mimic the nucleic acid framework of a functional transcription elongation complex was designed and assembled. The construct consisted of a double-stranded DNA duplex of variable length (the template and nontemplate strands) containing an internal noncomplementary DNA "bubble" sequence. The 3' end of an RNA oligonucleotide that is partially complementary to the template DNA strand was hybridized within the DNA bubble to form an RNA-DNA duplex with a non-complementary 5'-terminal RNA tail. The addition of either Escherichia coli or T7 RNA polymerase to this construct formed a complex that synthesized RNA with good efficiency from the hybridized RNA primer in a template-directed and processive manner, and displayed other features of a normal promoter-initiated transcription elongation complex. Other such constructs can be designed to examine many of the functional and regulatory properties of transcription systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Daube, S S -- von Hippel, P H -- GM-15792/GM/NIGMS NIH HHS/ -- GM-29158/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Nov 20;258(5086):1320-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology, University of Oregon, Eugene 97403.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1280856" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; DNA/genetics ; DNA-Directed RNA Polymerases/*metabolism ; Escherichia coli/enzymology/genetics ; In Vitro Techniques ; Molecular Sequence Data ; Nucleic Acid Hybridization ; *Promoter Regions, Genetic ; RNA/genetics ; Structure-Activity Relationship ; Templates, Genetic ; *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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  • 97
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    Folic acid. Agencies split on nutrition advice (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-09-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1992 Sep 25;257(5078):1857.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1301026" target="_blank"〉PubMed〈/a〉
    Keywords: Diet ; Female ; *Folic Acid ; Humans ; Neural Tube Defects/prevention & control ; Pregnancy
    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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  • 98
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    Cloning of a subunit of yeast RNA polymerase II transcription factor b and CTD kinase (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-09-04
    Description: Yeast RNA polymerase II initiation factor b copurifies with three polypeptides of 85, 73, and 50 kilodaltons and with a protein kinase that phosphorylates the carboxyl-terminal repeat domain (CTD) of the largest polymerase subunit. The gene that encodes the 73-kilodalton polypeptide, designated TFB1, was cloned and found to be essential for cell growth. The deduced protein sequence exhibits no similarity to those of protein kinases. However, the sequence is similar to that of the 62-kilodalton subunit of the HeLa transcription factor BFT2, suggesting that this factor is the human counterpart of yeast factor b. Immunoprecipitation experiments using antibodies to the TFB1 gene product demonstrate that the transcriptional and CTD kinase activities of factor b are closely associated with an oligomer of the three polypeptides. Photoaffinity labeling with 3'-O-(4-benzoyl)benzoyl-ATP (adenosine triphosphate) identified an ATP-binding site in the 85-kilodalton polypeptide, suggesting that the 85-kilodalton subunit contains the catalytic domain of the kinase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gileadi, O -- Feaver, W J -- Kornberg, R D -- GM-36659/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Sep 4;257(5075):1389-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Sherman Fairchild Center, Stanford University Medical School, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1445600" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Affinity Labels ; Amino Acid Sequence ; Base Sequence ; Binding Sites ; *Cloning, Molecular ; Immunosorbent Techniques ; Molecular Sequence Data ; Phosphorylation ; Protein Kinases/chemistry/*genetics/metabolism ; RNA Polymerase II/metabolism ; Saccharomyces cerevisiae/*enzymology/genetics ; *Saccharomyces cerevisiae Proteins ; Sequence Homology, Nucleic Acid ; Transcription Factors/chemistry/*genetics ; *Transcription Factors, General ; *Transcription Factors, TFII ; *Transcriptional Elongation Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 99
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    Cytoskeleton--plasma membrane interactions (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-11-06
    Description: Proteins at the boundary between the cytoskeleton and the plasma membrane control cell shape, delimit specialized membrane domains, and stabilize attachments to other cells and to the substrate. These proteins also regulate cell locomotion and cytoplasmic responses to growth factors and other external stimuli. This diversity of cellular functions is matched by the large number of biochemical mechanisms that mediate the connections between membrane proteins and the underlying cytoskeleton, the so-called membrane skeleton. General organizational themes are beginning to emerge from examination of this biochemical diversity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luna, E J -- Hitt, A L -- R01 GM033048/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Nov 6;258(5084):955-64.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Biology Group, Worcester Foundation for Experimental Biology, Shrewsbury, MA 01545.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439807" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Adhesion/physiology ; Cell Membrane/*physiology/ultrastructure ; Cell Movement/physiology ; Cell Physiological Phenomena ; Cells/cytology ; Cytoskeleton/*physiology/ultrastructure ; Homeostasis ; Humans
    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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    Awakenings ... UV light and HIV gene activation (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wallace, B M -- Lasker, J S -- New York, N.Y. -- Science. 1992 Aug 28;257(5074):1211-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1519057" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cloning, Molecular ; DNA/radiation effects ; DNA Damage ; Gene Expression/*radiation effects ; Genes, Viral/*radiation effects ; HIV/*genetics ; HIV Long Terminal Repeat ; Humans ; Mice ; PUVA Therapy/adverse effects ; Sunlight/adverse effects ; Ultraviolet Rays/*adverse effects
    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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