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  • Articles  (3,017)
  • United States  (1,591)
  • Molecular Sequence Data  (1,431)
  • 1990-1994  (2,106)
  • 1985-1989  (911)
  • Physics  (3,015)
  • Computer Science  (3,014)
  • Energy, Environment Protection, Nuclear Power Engineering  (2)
  • Sociology
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  • Articles  (3,017)
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  • 1
    Electronic Resource
    Electronic Resource
    Sensitivity of secular trends in precipitation data to observational errors (1990)
    Springer
    Pure and applied geophysics 134 (1990), S. 1-12 
    Details
    ISSN: 1420-9136
    Keywords: Precipitation ; trends ; climate changes ; data errors ; United States ; rainfall
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract There has been considerable interest in estimating secular trends in precipitation data in various regions of the world. It is therefore important to ascertain the manner in which errors of observation affect estimated trends. For this purpose we have compared trends at 1219 stations in the contiguous United States for two data sets: (a) original observations, also called “raw” observations, and (b) the observations, adjusted to compensate for suspected errors. The adjustments were made at the National Climate Data Center, Asheville (Quinlan et al., 1987;karl andWilliams, 1987), In order to focus on the effects of observational errors we attempted to avoid the effects of filling of missing data by limiting the analysis to the period 1940–1984 for which the number of missing values is much smaller than earlier periods. A least-square linear regression was performed on the raw and adjusted data for each station and the slopes of the fitted lines were compared. The comparison was made for monthly, seasonal and annual precipitation values. The results for annual precipitation showed that 23 percent of the stations have trends of opposite signs in the raw and adjusted data. The trends were identical in annual data at only 11 percent of the stations. When monthly data are combined to form seasonal and annual averages the magnitude of the difference between the slopes of the adjusted and the raw observations generally increases, indicating that the errors in the individual monthly observations are correlated. When the station data were averaged to obtain state-wide averages, the effects of the errors became less pronounced in most of the states. These results indicate that obtaining trends in precipitation from station data is a more difficult problem than has been realized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00878076
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  • 2
    Electronic Resource
    Electronic Resource
    Culture and the environment in the United States (1985)
    Springer
    Environmental management 9 (1985), S. 161-172 
    Details
    ISSN: 1432-1009
    Keywords: Environment ; Beliefs ; Values ; Paradigms ; Culture ; Attitudes ; Social change ; Political change ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The beliefs of Americans about the proper relationship between humans and their environment were profoundly affected by waves of immigration from Europe. Immigrants valued ownership of land, individuality, freedom, domination of nature, and technological development. These themes remain strong today as centerpieces of the American dominant social paradigm (DSP). That DSP has been reexamined and found wanting by an increasing proportion of Americans. This departure from the old DSP has progressed further among the public than among the elite who have a greater stake in preserving the status quo. Environmentalists constitute a vanguard trying to lead the people to a new, more environmentally oriented social paradigm. The beliefs of the old DSP and the new environmental paradigm (NEP) are contrasted in Table 2. Briefly, the NEP advocates stress love of nature rather than domination of it; compassion for other peoples, future generations, and other species; planning to avoid risk; limits to growth; fundamental social change; and a new structuring of politics. These two worldviews are likely to be in vigorous conflict for several decades in the USA. Social learning, spurred by deterioration of the old ways, is likely to lead Americans to a new perspective on their relationship to nature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01867116
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  • 3
    Electronic Resource
    Electronic Resource
    How efficient are national environmental standards? A benefit-cost analysis of the United States experience (1991)
    Springer
    Environmental and resource economics 1 (1991), S. 385-413 
    Details
    ISSN: 1573-1502
    Keywords: Environmental standards ; environmental regulations ; benefit-cost ; cost-benefit ; United States ; efficiency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Economics
    Notes: Abstract This paper summarizes the results of the first systematic, geographically-specific efficiency assessment of the U.S. experience with national environmental standards and with alternative approaches to establishing those standards. This ex-post evaluation assessed the net benefits that resulted from EPA's regulation of conventional air and water pollutants from the pulp and paper industry between 1973 and 1984. The paper compares the benefit-cost efficiencies of the three dominant regulatory approaches: technology, ambient, and benefits. Unlike previous studies, which assessed benefits and costs on a national basis, the study estimates both costs and benefits on a facility-by-facility basis. The analysis shows how the efficiency of national environmental regulations can vary dramatically at local levels. The authors conclude that the technology-based standards for water pollution management failed as an efficient environmental strategy. The costs clearly exceeded the benefits in the aggregate, as well as in the specific in most situations. Benefits exceeded costs at only 11 of the 68 mills investigated. The ambient based standards for air pollution management succeeded as an environmental strategy in the aggregate, but succeeded in the specific for only one-third of the mills (22 of 60 mills). The benefits-based standards for air pollution management also succeeded in the aggregate as well as in the specific for about one-half of the mills. Benefits exceeded costs at 29 of the 60 mills investigated. The results of the study point to two major conclusions. First, a regulatory policy that is based on some measure of environmental results, either ambient-based or benefits-based, will be more efficient than a policy that ignores environmental results. Second, truly efficient policies for reducing environmental risks require pollution mitigation decisions that take into account local conditions. These include not only the changes in local ambient conditions, but also the number of people who will benefit from pollution reduction decisions. This latter conclusion suggests that national environmental standards per se may be inefficient.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00377494
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  • 4
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    A "selfish" B chromosome that enhances its transmission by eliminating the paternal genome (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-22
    Description: In the parasitic wasp, Nasonia vitripennis, males are haploid and usually develop from unfertilized eggs, whereas females are diploid and develop from fertilized eggs. Some individuals in this species carry a genetic element, termed psr (paternal sex ratio), which is transmitted through sperm and causes condensation and subsequent loss of paternal chromosomes in fertilized eggs, thus converting diploid females into haploid males. In this report the psr trait was shown to be caused by a supernumerary chromosome. This B chromosome contains at least three repetitive DNA sequences that do not cross-hybridize to each other or to the host genome. The psr chromosome apparently produces a trans-acting product responsible for condensation of the paternal chromosomes, but is itself insensitive to the effect. Because the psr chromosome enhances its transmission by eliminating the rest of the genome, it can be considered the most "selfish" genetic element yet described.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nur, U -- Werren, J H -- Eickbush, D G -- Burke, W D -- Eickbush, T H -- GM31867/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Apr 22;240(4851):512-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Rochester, NY 14627.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3358129" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chromosomes/*physiology ; Cloning, Molecular ; DNA, Satellite ; Diploidy ; Haploidy ; Hymenoptera/*genetics ; Molecular Sequence Data ; Repetitive Sequences, Nucleic Acid ; Sex Determination Analysis ; *Sex Ratio ; Wasps/*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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  • 5
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    Crisis in biosystematics of arthropods (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-05-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oliver, J H Jr -- New York, N.Y. -- Science. 1988 May 20;240(4855):967.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3368789" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Arthropod Vectors ; Government Agencies ; Humans ; *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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  • 6
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    Molecular cloning of odorant-binding protein: member of a ligand carrier family (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-15
    Description: Odorant-binding protein (OBP) is found in nasal epithelium, and it selectively binds odorants. Three complementary DNAs encoding rat odorant-binding protein have now been cloned and sequenced. One clone contains an open reading frame predicted to encode an 18,091-dalton protein. RNA blot analysis confirms the localization of OBP messenger RNA in the nasal epithelium. This OBP has 33 percent amino acid identity to alpha 2-microglobulin, a secreted plasma protein. Other members of an alpha 2-microglobulin superfamily bind and transport hydrophobic ligands. Thus, OBP probably binds and carries odorants within the nasal epithelium to putative olfactory receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pevsner, J -- Reed, R R -- Feinstein, P G -- Snyder, S H -- DA-00074/DA/NIDA NIH HHS/ -- GM-07626/GM/NIGMS NIH HHS/ -- P01 CA16519-13/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 15;241(4863):336-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3388043" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Carrier Proteins/*genetics ; Cloning, Molecular ; Ligands ; Membrane Proteins/*genetics ; Molecular Sequence Data ; Nasal Mucosa/*physiology ; Rats ; *Receptors, Odorant ; Smell/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Helix signals in proteins (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-06-17
    Description: The alpha helix, first proposed by Pauling and co-workers, is a hallmark of protein structure, and much effort has been directed toward understanding which sequences can form helices. The helix hypothesis, introduced here, provides a tentative answer to this question. The hypothesis states that a necessary condition for helix formation is the presence of residues flanking the helix termini whose side chains can form hydrogen bonds with the initial four-helix greater than N-H groups and final four-helix greater than C-O groups; these eight groups would otherwise lack intrahelical partners. This simple hypothesis implies the existence of a stereochemical code in which certain sequences have the hydrogen-bonding capacity to function as helix boundaries and thereby enable the helix to form autonomously. The three-dimensional structure of a protein is a consequence of the genetic code, but the rules relating sequence to structure are still unknown. The ensuing analysis supports the idea that a stereochemical code for the alpha helix resides in its boundary residues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Presta, L G -- Rose, G D -- AG 06084/AG/NIA NIH HHS/ -- GM 29458/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 17;240(4859):1632-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, Hershey Medical Center, Pennsylvania State University, Hershey 17033.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2837824" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Carboxypeptidases ; Carboxypeptidases A ; Cytochrome c Group ; Flavodoxin ; Humans ; Hydrogen Bonding ; Models, Chemical ; Molecular Sequence Data ; Muramidase ; Myoglobin ; Pancreatic Polypeptide ; Parvalbumins ; Plastocyanin ; *Protein Conformation ; Ribonucleases ; Scorpion Venoms ; Tetrahydrofolate Dehydrogenase ; Triose-Phosphate Isomerase ; Trypsin Inhibitors ; X-Ray Diffraction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Characterization of a helical protein designed from first principles (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-08-19
    Description: The question of how the primary amino acid sequence of a protein determines its three-dimensional structure is still unanswered. One approach to this problem involves the de novo design of model peptides and proteins that should adopt desired three-dimensional structures. A systematic approach was aimed at the design of a four-helix bundle protein. The gene encoding the designed protein was synthesized and the protein was expressed in Escherichia coli and purified to homogeneity. The protein was shown to be monomeric, highly helical, and very stable to denaturation by guanidine hydrochloride (GuHCl). Thus a globular protein has been designed that is capable of adopting a stable, folded structure in aqueous solution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Regan, L -- DeGrado, W F -- New York, N.Y. -- Science. 1988 Aug 19;241(4868):976-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉E. I. du Pont de Nemours & Company, Central Research & Development Department, Wilmington, DE 19898.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3043666" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Chemical Phenomena ; Chemistry ; Chromatography, Gel ; Escherichia coli/genetics ; Molecular Sequence Data ; Plasmids ; *Protein Conformation ; *Proteins/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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  • 9
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    Relman on Maddox (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-10-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Relman, A S -- New York, N.Y. -- Science. 1988 Oct 21;242(4877):348.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175655" target="_blank"〉PubMed〈/a〉
    Keywords: Periodicals as Topic ; *Publishing ; Research/*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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  • 10
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    Watson may head genome office (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-05-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1988 May 13;240(4854):878-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3363368" target="_blank"〉PubMed〈/a〉
    Keywords: *Administrative Personnel ; *Base Sequence ; *Chromosomes, Human ; *Genes ; Humans ; National Institutes of Health (U.S.)/*organization & administration ; Research Support as Topic/economics/legislation & jurisprudence ; 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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    Academy backs genome project (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-02-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1988 Feb 12;239(4841 Pt 1):725-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3340854" target="_blank"〉PubMed〈/a〉
    Keywords: *Base Sequence ; *Chromosome Mapping ; *Chromosomes, Human ; Government Agencies ; Humans ; Societies, Scientific ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 12
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    Biologically effective ultraviolet radiation: surface measurements in the United States, 1974 to 1985 (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-02-12
    Description: Recent reports of stratospheric ozone depletion have prompted concerns about the levels of solar ultraviolet radiation that reach the earth's surface. Since 1974 a network of ground-level monitoring stations in the United States has tracked measurements of biologically effective ultraviolet radiation (UVB, 290 to 330 nanometers). The fact that no increases of UVB have been detected at ground levels from 1974 to 1985 suggests that meteorological, climatic, and environmental factors in the troposphere may play a greater role in attenuating UVB radiation than was previously suspected.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scotto, J -- Cotton, G -- Urbach, F -- Berger, D -- Fears, T -- New York, N.Y. -- Science. 1988 Feb 12;239(4841 Pt 1):762-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biostatistics Branch, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3340857" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Melanoma/etiology ; Meteorological Concepts ; Neoplasms, Radiation-Induced/etiology ; Skin Neoplasms/etiology ; *Sunlight/adverse effects ; *Ultraviolet Rays ; 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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  • 13
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    A newly characterized HLA DQ beta allele associated with pemphigus vulgaris (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-02-26
    Description: The inheritance of particular alleles of major histocompatibility complex class II genes increases the risk for various human autoimmune diseases; however, only a small percentage of individuals having an allele associated with susceptibility develop disease. The identification of allelic variants more precisely correlated with disease susceptibility would greatly facilitate clinical screening and diagnosis. Oligonucleotide-primed gene amplification in vitro was used to determine the nucleotide sequence of a class II variant found almost exclusively in patients with the autoimmune skin disease pemphigus vulgaris. In addition to clinical implications, the disease-restricted distribution of this variant should provide insight into the molecular mechanisms underlying associations between diseases and HLA-class II genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sinha, A A -- Brautbar, C -- Szafer, F -- Friedmann, A -- Tzfoni, E -- Todd, J A -- Steinman, L -- McDevitt, H O -- New York, N.Y. -- Science. 1988 Feb 26;239(4843):1026-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Microbiology, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2894075" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Autoimmune Diseases/*genetics/immunology ; Base Sequence ; DNA/genetics ; Gene Amplification ; Genetic Variation ; HLA-D Antigens/*genetics ; HLA-DQ Antigens/*genetics/immunology ; HLA-DR Antigens/immunology ; Humans ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Pemphigus/*genetics/immunology ; Polymorphism, Restriction Fragment Length
    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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    Research at USAMRIID (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-10-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Novak, J M -- New York, N.Y. -- Science. 1988 Oct 14;242(4876):168.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175640" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Warfare ; *Government Agencies ; United States
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 15
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    Report calls for revamping of EPA research (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 Sep 23;241(4873):1596.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3420413" target="_blank"〉PubMed〈/a〉
    Keywords: Budgets ; Government Agencies/*organization & administration ; *Research Support as Topic ; United States ; United States Environmental Protection Agency/*organization & administration
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 16
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    NIH budget boost mostly for AIDS (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 Sep 16;241(4872):1427.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3420400" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome ; Humans ; National Institutes of Health (U.S.)/*economics ; 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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  • 17
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    Pesticides to be judged on leachability (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-03-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 Mar 4;239(4844):1086.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3344426" target="_blank"〉PubMed〈/a〉
    Keywords: Legislation as Topic ; *Pesticides ; United States ; Water Pollution, Chemical/*prevention & control
    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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    Breast cancer study vetoed (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-01-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1988 Jan 15;239(4837):252.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3276002" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*etiology/prevention & control ; Clinical Trials as Topic/economics ; Dietary Fats/administration & dosage/*adverse effects ; Female ; Humans ; National Institutes of Health (U.S.) ; 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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  • 19
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    Combinatorial cassette mutagenesis as a probe of the informational content of protein sequences (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-01
    Description: A method of combinatorial cassette mutagenesis was designed to readily determine the informational content of individual residues in protein sequences. The technique consists of simultaneously randomizing two or three positions by oligonucleotide cassette mutagenesis, selecting for functional protein, and then sequencing to determine the spectrum of allowable substitutions at each position. Repeated application of this method to the dimer interface of the DNA-binding domain of lambda repressor reveals that the number and type of substitutions allowed at each position are extremely variable. At some positions only one or two residues are functionally acceptable; at other positions a wide range of residues and residue types are tolerated. The number of substitutions allowed at each position roughly correlates with the solvent accessibility of the wild-type side chain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reidhaar-Olson, J F -- Sauer, R T -- AI-15706/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 1;241(4861):53-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, Cambridge 02139.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3388019" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Codon ; DNA/genetics/metabolism ; *DNA-Binding Proteins ; Macromolecular Substances ; Molecular Sequence Data ; Mutation ; Plasmids ; Protein Conformation ; Repressor Proteins/*genetics ; Structure-Activity Relationship ; Transcription Factors/*genetics ; Viral Proteins ; Viral Regulatory and Accessory Proteins
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Breast cancer-associated pS2 protein: synthesis and secretion by normal stomach mucosa (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-08-05
    Description: The human pS2 gene is specifically expressed under estrogen transcriptional control in a subclass of estrogen receptor-containing human breast cancer cells. The pS2 gene encodes an 84-amino acid protein that is secreted after signal peptide cleavage. The distribution of pS2 protein in normal human tissues was studied with antibodies to pS2; pS2 was specifically expressed and secreted by mucosa cells of the normal stomach antrum and body of both female and male individuals. Moreover, no estrogen receptor could be detected in these cells, indicating that pS2 gene expression is estrogen-independent in the stomach. The function of the pS2 protein in the gastrointestinal tract is unknown. However, the pS2 protein is similar in sequence to a porcine pancreatic protein that has been shown to inhibit gastrointestinal motility and gastric secretion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rio, M C -- Bellocq, J P -- Daniel, J Y -- Tomasetto, C -- Lathe, R -- Chenard, M P -- Batzenschlager, A -- Chambon, P -- New York, N.Y. -- Science. 1988 Aug 5;241(4866):705-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CNRS et U. 184 de l'INSERM, Institut de Chimie Biologique, Faculte de Medecine, Strasbourg, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3041593" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal ; Breast Neoplasms/*metabolism ; Estrogens/pharmacology ; Exons ; Female ; Gastric Mucosa/*metabolism ; *Gene Expression Regulation ; Histocytochemistry ; Humans ; Immunoenzyme Techniques ; Male ; Molecular Sequence Data ; Neoplasm Proteins/*biosynthesis/genetics/secretion ; *Proteins ; RNA, Messenger/metabolism ; Receptors, Estrogen/metabolism ; Sequence Homology, Nucleic Acid ; Tissue Distribution ; Tumor Cells, Cultured ; Tumor Suppressor Proteins
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    Cloning of a membrane protein that induces a slow voltage-gated potassium current (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-11-18
    Description: A rat kidney messenger RNA that induces a slowly activating, voltage-dependent potassium current on its expression in Xenopus oocytes was identified by combining molecular cloning with an electrophysiological assay. The cloned complementary DNA encodes a novel membrane protein that consists of 130 amino acids with a single putative transmembrane domain. This protein differs from the known ion channel proteins but is involved in the induction of selective permeation of potassium ions by membrane depolarization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takumi, T -- Ohkubo, H -- Nakanishi, S -- New York, N.Y. -- Science. 1988 Nov 18;242(4881):1042-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Immunology, Kyoto University Faculty of Medicine, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3194754" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Blotting, Northern ; Cloning, Molecular ; DNA/genetics ; Electric Conductivity ; Membrane Potentials ; Membrane Proteins/*genetics ; Molecular Sequence Data ; Molecular Weight ; Potassium Channels/*physiology ; Rats ; Xenopus laevis
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  • 22
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    Selection of variable-joining region combinations in the alpha chain of the T cell receptor (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-09
    Description: Most T lymphocytes express an antigen-specific receptor composed of two subunits, alpha and beta, each of which can exhibit structural variability. A complex selection process operates on T cells during development in the thymus such that cells expressing only particular alpha beta-receptors migrate to the periphery. The alpha-chain repertoire was dissected at different stages of the selection process by using the polymerase chain reaction (PCR) technique to amplify only those transcripts of a particular variable region gene (V58). Sequences from these V58 cDNAs reveal the predominant expression of four joining (J) segments by T cells in the adult thymus, suggesting that molecular or cellular processes select particular V alpha J alpha combinations during development. T cells expressing one of these V58J alpha chains appear to have been negatively selected at a later stage, since these transcripts were present in the spleen at approximately one-tenth the level in the thymus. Results also indicate that residues present at the V alpha J alpha junction may be important in an early selection process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roth, M E -- Lacy, M J -- McNeil, L K -- Kranz, D M -- AI24635/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1988 Sep 9;241(4871):1354-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Illinois, Urbana 61801.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2970673" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Genes ; *Major Histocompatibility Complex ; Mice ; Mice, Inbred Strains ; Molecular Sequence Data ; Receptors, Antigen, T-Cell/*genetics ; Receptors, Antigen, T-Cell, alpha-beta ; Recombination, Genetic ; Spleen/physiology ; T-Lymphocytes/*physiology ; Thymus Gland/physiology ; Tissue Distribution
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Marine mammals join the Navy (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-12-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morrison, D C -- New York, N.Y. -- Science. 1988 Dec 16;242(4885):1503-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201237" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Welfare ; Animals ; *Dolphins ; *Military Science ; *Pinnipedia ; *Seals, Earless ; United States
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  • 24
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    A molecular basis for MHC class II--associated autoimmunity (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-05-20
    Description: Class II major histocompatibility (MHC) molecules have an immunoregulatory role. These cell-surface glycoproteins present fragments of protein antigens (or peptides) to thymus-derived lymphocytes (T cells). Nucleotide sequence polymorphism in the genes that encode the class II MHC products determines the specificity of the immune response and is correlated with the development of autoimmune diseases. This study identifies certain class II polymorphic amino acid residues that are strongly associated with susceptibility to insulin-dependent diabetes mellitus, rheumatoid arthritis, and pemphigus vulgaris. These findings implicate particular class II MHC isotypes in susceptibility to each disease and suggest new prophylactic and therapeutic strategies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Todd, J A -- Acha-Orbea, H -- Bell, J I -- Chao, N -- Fronek, Z -- Jacob, C O -- McDermott, M -- Sinha, A A -- Timmerman, L -- Steinman, L -- New York, N.Y. -- Science. 1988 May 20;240(4855):1003-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Microbiology, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3368786" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arthritis, Rheumatoid/immunology ; Autoantibodies/*genetics ; Autoimmune Diseases/*genetics ; Diabetes Mellitus, Type 1/immunology ; HLA-D Antigens/*genetics ; Humans ; Major Histocompatibility Complex ; Molecular Sequence Data ; Pemphigus/immunology
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    Science after the election (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-11-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1988 Nov 18;242(4881):1002-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3194749" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome ; Humans ; Legislation as Topic ; Plants, Toxic ; Politics ; *Science ; Tobacco ; United States
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  • 26
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    Physical analysis of transcription preinitiation complex assembly on a class II gene promoter (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-09
    Description: Transcription of protein-encoding genes by human RNA polymerase II requires multiple ancillary proteins (transcription factors). Interactions between these proteins and the promoter DNA of a viral class II gene (the major late transcription unit of adenovirus) were investigated by enzymatic and chemical footprinting. The experiments indicated that the assembly of functionally active RNA polymerase II-containing transcription preinitiation complexes requires a complete set of transcription factors, and that both specific protein-DNA and protein-protein interactions are involved. This allows individual steps along the transcription reaction pathway to be tested directly, thus providing a basis for understanding basic transcription initiation mechanisms as well as the regulatory processes that act on them.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Van Dyke, M W -- Roeder, R G -- Sawadogo, M -- CA 42567/CA/NCI NIH HHS/ -- GM 38212/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Sep 9;241(4871):1335-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Biochemistry and Molecular Biology, Rockefeller University, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3413495" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviruses, Human/genetics ; Base Sequence ; DNA-Binding Proteins/physiology ; Deoxyribonucleases/metabolism ; Macromolecular Substances ; Molecular Sequence Data ; Nuclear Proteins/physiology ; *Promoter Regions, Genetic ; RNA Polymerase II/*metabolism ; *Regulatory Sequences, Nucleic Acid ; Transcription Factors/*physiology ; *Transcription, Genetic
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  • 27
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    Identification of an intracellular peptide segment involved in sodium channel inactivation (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-23
    Description: Antibodies directed against a conserved intracellular segment of the sodium channel alpha subunit slow the inactivation of sodium channels in rat muscle cells. Of four site-directed antibodies tested, only antibodies against the short intracellular segment between homologous transmembrane domains III and IV slowed inactivation, and their effects were blocked by the corresponding peptide antigen. No effects on the voltage dependence of sodium channel activation or of steady-state inactivation were observed, but the rate of onset of the antibody effect and the extent of slowing of inactivation were voltage-dependent. Antibody binding was more rapid at negative potentials, at which sodium channels are not inactivated; antibody-induced slowing of inactivation was greater during depolarizations to more positive membrane potentials. The peptide segment recognized by this antibody appears to participate directly in rapid sodium channel inactivation during large depolarizations and to undergo a conformational change that reduces its accessibility to antibodies as the channel inactivates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vassilev, P M -- Scheuer, T -- Catterall, W A -- NS 15751/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Sep 23;241(4873):1658-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Washington, School of Medicine, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2458625" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies ; Cytoplasm/analysis ; In Vitro Techniques ; Ion Channels/*metabolism ; Membrane Potentials ; Molecular Sequence Data ; Peptides/*metabolism ; Rats ; Sodium/*metabolism
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    Reshaping human antibodies: grafting an antilysozyme activity (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-03-25
    Description: The production of therapeutic human monoclonal antibodies by hybridoma technology has proved difficult, and this has prompted the "humanizing" of mouse monoclonal antibodies by recombinant DNA techniques. It was shown previously that the binding site for a small hapten could be grafted from the heavy-chain variable domain of a mouse antibody to that of a human myeloma protein by transplanting the hypervariable loops. It is now shown that a large binding site for a protein antigen (lysozyme) can also be transplanted from mouse to human heavy chain. The success of such constructions may be facilitated by an induced-fit mechanism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Verhoeyen, M -- Milstein, C -- Winter, G -- New York, N.Y. -- Science. 1988 Mar 25;239(4847):1534-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Laboratory of Molecular Biology, Cambridge, England.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2451287" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibodies, Monoclonal/genetics/immunology ; Base Sequence ; Binding Sites, Antibody ; Binding, Competitive ; Cloning, Molecular ; DNA, Recombinant ; Epitopes/immunology ; Humans ; Immunoglobulin G/genetics/immunology ; Immunoglobulin Variable Region/genetics ; Mice ; Molecular Sequence Data ; Muramidase/*immunology ; Plasmids ; Recombinant Proteins ; Transfection
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    Molecular cloning of two types of GAP complementary DNA from human placenta (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-12-23
    Description: The ras p21 GTPase-activating protein (GAP) was purified from human placental tissue. Internal amino acid sequence was obtained from this 120,000-dalton protein and, by means of this sequence, two types of complementary DNA clones were isolated and characterized. One type encoded GAP with a predicted molecular mass of 116,000 daltons and 96% identity with bovine GAP. The messenger RNA of this GAP was detected in human lung, brain, liver, leukocytes, and placenta. The second type appeared to be generated by a differential splicing mechanism and encoded a novel form of GAP with a predicted molecular mass of 100,400 daltons. This protein lacks the hydrophobic amino terminus characteristic of the larger species, but retains GAP activity. The messenger RNA of this type was abundantly expressed in placenta and in several human cell lines, but not in adult tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trahey, M -- Wong, G -- Halenbeck, R -- Rubinfeld, B -- Martin, G A -- Ladner, M -- Long, C M -- Crosier, W J -- Watt, K -- Koths, K -- New York, N.Y. -- Science. 1988 Dec 23;242(4886):1697-700.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Cetus Corp., Emeryville, CA 94608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201259" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Brain Chemistry ; *Cloning, Molecular ; DNA/*genetics/isolation & purification ; Female ; GTPase-Activating Proteins ; Gene Expression Regulation ; Humans ; Leukocytes/analysis ; Liver/analysis ; Lung/analysis ; Molecular Sequence Data ; Molecular Weight ; Nucleic Acid Hybridization ; Oligonucleotide Probes ; Placenta/*analysis ; Pregnancy ; Proteins/*genetics/isolation & purification ; RNA, Messenger/analysis/genetics ; Sequence Homology, Nucleic Acid ; ras GTPase-Activating Proteins
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    Functional expression of a new pharmacological subtype of brain nicotinic acetylcholine receptor (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-15
    Description: A new type of agonist-binding subunit of rat neuronal nicotinic acetylcholine receptors (nAChRs) was identified. Rat genomic DNA and complementary DNA encoding this subunit (alpha 2) were cloned and analyzed. Complementary DNA expression studies in Xenopus oocytes revealed that the injection of messenger RNAs (mRNAs) for alpha 2 and beta 2 (a neuronal nAChR subunit) led to the generation of a functional nAChR. In contrast to the other known neuronal nAChRs, the receptor produced by the injection of alpha 2 and beta 2 mRNAs was resistant to the alpha-neurotoxin Bgt3.1. In situ hybridization histochemistry showed that alpha 2 mRNA was expressed in a small number of regions, in contrast to the wide distribution of the other known agonist-binding subunits (alpha 3 and alpha 4) mRNAs. These results demonstrate that the alpha 2 subunit differs from other known agonist-binding alpha-subunits of nAChRs in its distribution in the brain and in its pharmacology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wada, K -- Ballivet, M -- Boulter, J -- Connolly, J -- Wada, E -- Deneris, E S -- Swanson, L W -- Heinemann, S -- Patrick, J -- New York, N.Y. -- Science. 1988 Apr 15;240(4850):330-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Salk Institute for Biological Studies, San Diego, CA 92138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2832952" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Brain/*metabolism ; DNA Restriction Enzymes ; Female ; *Genes ; Molecular Sequence Data ; Neurons/metabolism ; Nucleotide Mapping ; Oocytes/metabolism ; Rats ; Receptors, Nicotinic/*genetics/metabolism ; Transcription, Genetic ; Xenopus laevis
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  • 31
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    Aggregation of lysine-containing zeins into protein bodies in Xenopus oocytes (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-29
    Description: Zeins, the storage proteins of maize, are totally lacking in the essential amino acids lysine and tryptophan. Lysine codons and lysine- and tryptophan-encoding oligonucleotides were introduced at several positions into a 19-kilodalton zein complementary DNA by oligonucleotide-mediated mutagenesis. A 450-base pair open reading frame from a simian virus 40 (SV40) coat protein was also engineered into the zein coding region. Messenger RNAs for the modified zeins were synthesized in vitro with an SP6 RNA polymerase system and injected into Xenopus laevis oocytes. The modifications did not affect the translation, signal peptide cleavage, or stability of the zeins. The ability of the modified zeins to assemble into structures similar to maize protein bodies was assayed by two criteria: assembly into membrane-bound vesicles resistant to exogenously added protease, and ability to self-aggregate into dense structures. All of the modified zeins were membrane-bound; only the one containing a 17-kilodalton SV40 protein fragment was unable to aggregate. These findings suggest that it may be possible to create high-lysine corn by genetic engineering.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wallace, J C -- Galili, G -- Kawata, E E -- Cuellar, R E -- Shotwell, M A -- Larkins, B A -- New York, N.Y. -- Science. 1988 Apr 29;240(4852):662-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2834822" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Membrane/metabolism ; DNA/genetics ; DNA, Recombinant ; Female ; Genetic Engineering ; *Lysine/genetics ; Macromolecular Substances ; Molecular Sequence Data ; Mutation ; Oocytes/*metabolism ; Peptide Hydrolases/metabolism ; RNA, Messenger/genetics ; Simian virus 40/genetics ; Xenopus laevis ; Zea mays ; Zein/genetics/*metabolism
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    Breakthrough for education at NSF? (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walsh, J -- New York, N.Y. -- Science. 1988 Apr 15;240(4850):271-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3353721" target="_blank"〉PubMed〈/a〉
    Keywords: Education/*economics ; *Government Agencies ; United States
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    NIH drug tests (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walsh, J M -- New York, N.Y. -- Science. 1988 Apr 15;240(4850):268.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3353719" target="_blank"〉PubMed〈/a〉
    Keywords: Employment ; *Health Policy ; Humans ; National Institutes of Health (U.S.) ; Substance-Related Disorders/*prevention & control ; United States
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    Agent Orange studies (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 Sep 8;245(4922):1031.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772652" target="_blank"〉PubMed〈/a〉
    Keywords: 2,4,5-Trichlorophenoxyacetic Acid/*adverse effects ; 2,4-Dichlorophenoxyacetic Acid/*adverse effects ; Dioxins/*adverse effects ; Humans ; Tetrachlorodibenzodioxin/*adverse effects ; United States ; *Veterans ; Vietnam
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The Dingell investigation (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 Jun 16;244(4910):1243.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2734603" target="_blank"〉PubMed〈/a〉
    Keywords: *Biomedical Research ; Data Collection/standards ; *Ethics, Professional ; Federal Government ; *Government Regulation ; *Science ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Where was Chakrabarty's bug? (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 May 26;244(4907):919.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11644372" target="_blank"〉PubMed〈/a〉
    Keywords: *DNA, Recombinant ; Ecology ; *Industry ; Jurisprudence ; Microbiology ; *Patents as Topic ; *Risk ; *Risk Assessment ; Supreme Court Decisions ; United States
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    Animals in the laboratory (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-28
    Description: The first sentence of reference 15 in the report "Single-chain antigen-binding proteins" by Robert E. Bird et al. (21 Oct., p. 423) should have read, 'The majority of experiments have produced Ka's within a factor of 2 of these values; therefore, log K(a)'s for the 4-4-20 I, Fab, and 4-4-20/20' single-chain protein are 10.2, 9.9, and 9.0+/-0.3, respectively.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 Apr 28;244(4903):409.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2717931" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Testing Alternatives ; *Animal Welfare ; Animals ; *Animals, Laboratory ; Ethics ; Societies ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Alpha-2-antiplasmin: a serpin with two separate but overlapping reactive sites (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-08-05
    Description: Although the proteinase inhibitor alpha-2-antiplasmin (alpha 2AP) is known to control the activity of plasmin through rapid formation of stable complexes, it also efficiently inactivates chymotrypsin. These interactions are shown to occur at adjacent, overlapping sites so that plasmin attacks the inhibitor at an Arg364-Met365 peptide bond, while chymotrypsin interacts at a Met365-Ser366 sequence one residue downstream. Thus, a naturally occurring plasma serine proteinase inhibitor can have multiple specificities through interactions at adjacent sites. It also illustrates the potential flexibility of the reactive site loop in this class of inhibitors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Potempa, J -- Shieh, B H -- Travis, J -- New York, N.Y. -- Science. 1988 Aug 5;241(4866):699-700.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology, Jagiellonian University, Cracow, Poland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2456616" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Carboxypeptidase B ; Carboxypeptidases/metabolism ; Carboxypeptidases A ; Chromatography, Gel ; Chromatography, High Pressure Liquid ; Chymotrypsin/antagonists & inhibitors/metabolism ; Electrophoresis, Polyacrylamide Gel ; Humans ; Molecular Sequence Data ; Peptide Fragments/metabolism ; Protease Inhibitors ; alpha-2-Antiplasmin/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Isolation and expression of functional high-affinity Fc receptor complementary DNAs (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-20
    Description: Human and murine mononuclear phagocytes express a high-affinity receptor for immunoglobulin G that plays a central role in macrophage antibody-dependent cellular cytotoxicity and clearance of immune complexes. The receptor (FcRI) may also be involved in CD4-independent infection of human macrophages by human immunodeficiency virus. This report describes the isolation of cDNA clones encoding the human FcRI by a ligand-mediated selection technique. Expression of the cDNAs in COS cells gave rise to immunoglobulin G binding of the expected affinity and subtype specificity. RNA blot analysis revealed expression of a 1.7-kilobase transcript in macrophages and in cells of the promonocytic cell line U937 induced with interferon-gamma. The extracellular region of FcRI consists of three immunoglobulin-like domains, two of which share homology with low-affinity receptor domains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allen, J M -- Seed, B -- New York, N.Y. -- Science. 1989 Jan 20;243(4889):378-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Massachusetts General Hospital, Boston 02114.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911749" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Blotting, Northern ; Cercopithecus aethiops ; Cloning, Molecular ; DNA/genetics ; Gene Expression Regulation ; Humans ; Molecular Sequence Data ; Molecular Weight ; Polymorphism, Genetic ; Receptors, Fc/*genetics ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    A question of information policy (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Atkinson, R C -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):733.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814490" target="_blank"〉PubMed〈/a〉
    Keywords: Library Services/*economics ; *National Library of Medicine (U.S.) ; United States
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    Golden opportunities seen in biology (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1989 Dec 1;246(4934):1115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587998" target="_blank"〉PubMed〈/a〉
    Keywords: *Biology ; *Research Support as Topic ; United States
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    Neurotoxicity creates regulatory dilemma (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1989 Jan 6;243(4887):29-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911718" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Humans ; *Legislation, Drug ; *Neurotoxins/toxicity ; United States ; United States Food and Drug Administration
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Seroprevalence and epidemiological correlates of HTLV-I infection in U.S. blood donors (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-29
    Description: Screening for human T-lymphotropic virus type I (HTLV-I) antibodies was performed on sera from 39,898 blood donors at eight blood centers in geographically distinct areas of the United States. Ten donors (0.025 percent) showed evidence of HTLV-I seropositivity by enzyme immunoassays; this was confirmed by protein immunoblot and radioimmunoprecipitation. Seroprevalence rates ranged from 0 to 0.10 percent at the locations sampled, with HTLV-I antibodies found predominantly in donors from the southeastern and southwestern United States. Matched case-control interviews and laboratory studies were performed on five seropositive women and two seropositive men who participated in an identity-linked collection of sera from a subset of 33,893 donors at six of the eight blood centers. Four of the women and both men are black; one woman is Caucasian. Four of the seven seropositive individuals admitted to prior intravenous drug abuse or sexual contact with an intravenous drug user. Sexual contact with native inhabitants of an HTLV-I endemic area was the only identified risk factor for one male. The distribution of HTLV-I antibodies in this U.S. blood donor sample corroborates the previously reported epidemiology of this agent and suggests that additional donor screening measures, including the testing of donated blood for HTLV-I markers, may be necessary to prevent the spread of HTLV-I to transfusion recipients.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, A E -- Fang, C T -- Slamon, D J -- Poiesz, B J -- Sandler, S G -- Darr, W F 2nd -- Shulman, G -- McGowan, E I -- Douglas, D K -- Bowman, R J -- New York, N.Y. -- Science. 1988 Apr 29;240(4852):643-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉American Red Cross Jerome H. Holland Laboratory, Rockville, MD 20855.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2896386" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Antibodies, Viral/*analysis ; *Blood Donors ; Deltaretrovirus/*immunology/isolation & purification ; Deltaretrovirus Infections/diagnosis/*epidemiology/transmission ; Female ; Humans ; Immunoenzyme Techniques ; Immunosorbent Techniques ; Japan ; Male ; Middle Aged ; Risk Factors ; Sexual Partners ; Substance-Related Disorders ; United States
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    Specific recognition of cruciform DNA by nuclear protein HMG1 (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-24
    Description: Cruciform DNA, a non-double helix form of DNA, can be generated as an intermediate in genetic recombination as well as from palindromic sequences under the effect of supercoiling. Eukaryotic cells are equipped with a DNA-binding protein that selectively recognizes cruciform DNA. Biochemical and immunological data showed that this protein is HMG1, an evolutionarily conserved, essential, and abundant component of the nucleus. The interaction with a ubiquitous protein points to a critical role for cruciform DNA conformations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bianchi, M E -- Beltrame, M -- Paonessa, G -- New York, N.Y. -- Science. 1989 Feb 24;243(4894 Pt 1):1056-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉European Molecular Biology Laboratory, Heidleberg, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2922595" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cloning, Molecular ; DNA/genetics/*metabolism ; Electrophoresis, Polyacrylamide Gel ; High Mobility Group Proteins/genetics/isolation & purification/*metabolism ; Immunoassay ; Immunoblotting ; Liver/analysis ; Molecular Sequence Data ; Molecular Weight ; *Nucleic Acid Conformation ; Peptide Fragments/genetics/isolation & purification ; Protein Biosynthesis ; Rats ; Transcription, Genetic
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    Endothelial interleukin-8: a novel inhibitor of leukocyte-endothelial interactions (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-22
    Description: Certain inflammatory stimuli render cultured human vascular endothelial cells hyperadhesive for neutrophils. This state is transient and reversible, in part because activated endothelial cells secrete a leukocyte adhesion inhibitor (LAI). LAI was identified as endothelial interleukin-8 (IL-8), the predominant species of which is an extended amino-terminal IL-8 variant. At nanomolar concentrations, purified endothelial IL-8 and recombinant human IL-8 inhibit neutrophil adhesion to cytokine-activated endothelial monolayers and protect these monolayers from neutrophil-mediated damage. These findings suggest that endothelial-derived IL-8 may function to attenuate inflammatory events at the interface between vessel wall and blood.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gimbrone, M A Jr -- Obin, M S -- Brock, A F -- Luis, E A -- Hass, P E -- Hebert, C A -- Yip, Y K -- Leung, D W -- Lowe, D G -- Kohr, W J -- P01-HL-36028/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1601-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2688092" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Biological Factors/pharmacology ; Cell Adhesion/drug effects ; Cells, Cultured ; Chemotactic Factors/*isolation & purification/pharmacology ; Culture Media/analysis ; Cytokines ; Endothelium, Vascular/cytology/drug effects/*physiology ; Humans ; Interleukin-1/*pharmacology ; Interleukin-8 ; Interleukins/*isolation & purification/pharmacology ; Molecular Sequence Data ; Neutrophils/cytology/drug effects/*physiology ; Recombinant Proteins/pharmacology
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    Recognition of thymine adenine.base pairs by guanine in a pyrimidine triple helix motif (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-01
    Description: Oligonucleotide recognition offers a powerful chemical approach for the sequence-specific binding of double-helical DNA. In the pyrimidine-Hoogsteen model, a binding size of greater than 15 homopurine base pairs affords greater than 30 discrete sequence-specific hydrogen bonds to duplex DNA. Because pyrimidine oligonucleotides limit triple helix formation to homopurine tracts, it is desirable to determine whether oligonucleotides can be used to bind all four base pairs of DNA. A general solution would allow targeting of oligonucleotides (or their analogs) to any given sequence in the human genome. A study of 20 base triplets reveals that the triple helix can be extended from homopurine to mixed sequences. Guanine contained within a pyrimidine oligonucleotide specifically recognizes thymine.adenine base pairs in duplex DNA. Such specificity allows binding at mixed sites in DNA from simian virus 40 and human immunodeficiency virus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Griffin, L C -- Dervan, P B -- GM-35724/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 1;245(4921):967-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena 91125.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2549639" target="_blank"〉PubMed〈/a〉
    Keywords: *Adenine ; Base Sequence ; DNA/*genetics ; DNA, Viral/genetics ; *Guanine ; HIV/genetics ; Hydrogen Bonding ; Models, Structural ; Molecular Sequence Data ; *Nucleic Acid Conformation ; Oligodeoxyribonucleotides ; Simian virus 40/genetics ; *Thymine
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    Soviets seek U.S. help in combating alcoholism (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Nov 17;246(4932):878-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814507" target="_blank"〉PubMed〈/a〉
    Keywords: Alcoholism/*prevention & control/rehabilitation ; Humans ; International Cooperation ; Ussr ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 48
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    New rules on misconduct (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Aug 11;245(4918):593.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2762812" target="_blank"〉PubMed〈/a〉
    Keywords: *Biomedical Research ; Crime/*legislation & jurisprudence ; Federal Government ; Fraud/*legislation & jurisprudence ; *Government Regulation ; Research Support as Topic ; United States ; *United States Dept. of Health and Human Services
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  • 49
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    NIH probes researcher's fundraising (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Feb 24;243(4894 Pt 1):1000.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2646708" target="_blank"〉PubMed〈/a〉
    Keywords: *Financial Management ; *Fund Raising ; History, 20th Century ; National Institutes of Health (U.S.) ; *Research Personnel ; *Research Support as Topic ; United States
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  • 50
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    Monkey euthanasia stalled by activists (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Jun 23;244(4911):1437.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2499929" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Welfare ; Animals ; Euthanasia/*veterinary ; *Haplorhini ; *Legislation, Veterinary ; National Institutes of Health (U.S.) ; United States
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    The economic status of the elderly (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-12
    Description: Augmented by public programs such as Social Security and Medicare, incomes of the elderly in the United States have grown more rapidly during the last several decades than have the incomes of other groups, so that on average the elderly are at least as well off as the nonelderly. Not all elderly, however, have done as well: widows, in particular, have high poverty rates. The economic prospects of the elderly during the next few decades are good because of the large work force from the baby-boom cohort. In the distant future a large fraction of the population will be elderly, which will probably lead to a deterioration in their economic status. Today, the main problems center on the distribution of economic resources among the elderly and on uncertainties such as costs of medical care.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hurd, M D -- New York, N.Y. -- Science. 1989 May 12;244(4905):659-64.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Economics, State University of New York, Stony Brook 11794.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2655090" target="_blank"〉PubMed〈/a〉
    Keywords: *Aged ; *Economics ; Humans ; *Income ; Medicaid ; Medicare ; Poverty ; Social Security ; United States
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    Generation of a large combinatorial library of the immunoglobulin repertoire in phage lambda (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-08
    Description: A novel bacteriophage lambda vector system was used to express in Escherichia coli a combinatorial library of Fab fragments of the mouse antibody repertoire. The system allows rapid and easy identification of monoclonal Fab fragments in a form suitable for genetic manipulation. It was possible to generate, in 2 weeks, large numbers of monoclonal Fab fragments against a transition state analog hapten. The methods described may supersede present-day hybridoma technology and facilitate the production of catalytic and other antibodies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huse, W D -- Sastry, L -- Iverson, S A -- Kang, A S -- Alting-Mees, M -- Burton, D R -- Benkovic, S J -- Lerner, R A -- New York, N.Y. -- Science. 1989 Dec 8;246(4935):1275-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Research Institute of Scripps Clinic, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2531466" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/*biosynthesis/genetics ; Antibody Specificity ; Antigen-Antibody Reactions ; Bacteriophage lambda/*genetics ; Base Sequence ; Cloning, Molecular/methods ; Escherichia coli/genetics ; Gene Amplification ; Gene Library ; *Genetic Vectors ; Hemocyanin/analogs & derivatives/immunology ; Immunoglobulin Fab Fragments/biosynthesis ; Immunoglobulin Fragments/*biosynthesis/genetics ; Mice ; Molecular Sequence Data ; Organophosphorus Compounds/immunology ; Recombinant Proteins/biosynthesis/genetics
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    Sequence-specific peptide cleavage catalyzed by an antibody (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-03
    Description: Monoclonal antibodies have been induced that are capable of catalyzing specific hydrolysis of the Gly-Phe bond of peptide substrates at neutral pH with a metal complex cofactor. The antibodies were produced by immunizing with a Co(III) triethylenetetramine (trien)-peptide hapten. These antibodies as a group are capable of binding trien complexes of not only Co(III) but also of numerous other metals. Six peptides were examined as possible substrates with the antibodies and various metal complexes. Two of these peptides were cleaved by several of the antibodies. One antibody was studied in detail, and cleavage was observed for the substrates with the trien complexes of Zn(II), Ga(III), Fe(III), In(III), Cu(II), Ni(II), Lu(III), Mg(II), or Mn(II) as cofactors. A turnover number of 6 x 10(-4) per second was observed for these substrates. These results demonstrate the feasibility of the use of cofactor-assisted catalysis in an antibody binding site to accomplish difficult chemical transformations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Iverson, B L -- Lerner, R A -- New York, N.Y. -- Science. 1989 Mar 3;243(4895):1184-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Research Institute of Scripps Clinic, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2922606" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Antibodies, Monoclonal ; Antigens/immunology ; Binding Sites, Antibody ; Catalysis ; Chemical Phenomena ; Chemistry ; Cobalt/immunology/metabolism ; Glycine/metabolism ; Haptens/immunology ; Hydrogen-Ion Concentration ; Hydrolysis ; Immunization ; Metals/metabolism ; Mice ; Molecular Sequence Data ; Molecular Structure ; Oligopeptides/*metabolism ; Phenylalanine/metabolism ; Trientine/immunology
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    Golf: an olfactory neuron specific-G protein involved in odorant signal transduction (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-19
    Description: Biochemical and electrophysiological studies suggest that odorants induce responses in olfactory sensory neurons via an adenylate cyclase cascade mediated by a G protein. An olfactory-specific guanosine triphosphate (GTP)-binding protein alpha subunit has now been characterized and evidence is presented suggesting that this G protein, termed Golf, mediates olfaction. Messenger RNA that encodes Golf alpha is expressed in olfactory neuroephithelium but not in six other tissues tested. Moreover, within the olfactory epithelium, Golf alpha appears to be expressed only by the sensory neurons. Specific antisera were used to localize Golf alpha protein to the sensory apparatus of the receptor neurons. Golf alpha shares extensive amino acid identity (88 percent) with the stimulatory G protein, Gs alpha. The expression of Golf alpha in S49 cyc- kin- cells, a line deficient in endogenous stimulatory G proteins, demonstrates its capacity to stimulate adenylate cyclase in a heterologous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, D T -- Reed, R R -- New York, N.Y. -- Science. 1989 May 19;244(4906):790-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Molecular Biology and Genetic Johns Hopkins School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2499043" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/metabolism ; Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; GTP-Binding Proteins/analysis/genetics/*physiology ; Gene Expression Regulation ; Immunoblotting ; Immunohistochemistry ; Molecular Sequence Data ; Neurons, Afferent/analysis/*physiology ; *Odors ; Olfactory Bulb/physiology ; Olfactory Mucosa/analysis/*innervation ; RNA, Messenger/analysis/genetics ; Rats ; Sequence Homology, Nucleic Acid ; *Signal Transduction ; Tissue Distribution ; Transfection
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    Vascular permeability factor, an endothelial cell mitogen related to PDGF (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-08
    Description: Vascular permeability factor (VPF) is a 40-kilodalton disulfide-linked dimeric glycoprotein that is active in increasing blood vessel permeability, endothelial cell growth, and angiogenesis. These properties suggest that the expression of VPF by tumor cells could contribute to the increased neovascularization and vessel permeability that are associated with tumor vasculature. The cDNA sequence of VPF from human U937 cells was shown to code for a 189-amino acid polypeptide that is similar in structure to the B chain of platelet-derived growth factor (PDGF-B) and other PDGF-B-related proteins. The overall identity with PDGF-B is 18%. However, all eight of the cysteines in PDGF-B were found to be conserved in human VPF, an indication that the folding of the two proteins is probably similar. Clusters of basic amino acids in the COOH-terminal halves of human VPF and PDGF-B are also prevalent. Thus, VPF appears to be related to the PDGF/v-sis family of proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Keck, P J -- Hauser, S D -- Krivi, G -- Sanzo, K -- Warren, T -- Feder, J -- Connolly, D T -- New York, N.Y. -- Science. 1989 Dec 8;246(4935):1309-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Culture and Biochemistry, Monsanto Company, St. Louis, MO 63167.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2479987" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Capillary Permeability/physiology ; Cell Division/physiology ; Cloning, Molecular ; Endothelium, Vascular/*cytology ; *Growth Substances ; Guinea Pigs ; Humans ; Lymphokines/*physiology ; Molecular Sequence Data ; Neovascularization, Pathologic/physiopathology ; Oncogene Proteins v-sis ; Platelet-Derived Growth Factor/physiology ; Retroviridae Proteins, Oncogenic/physiology ; Sequence Homology, Nucleic Acid ; Transforming Growth Factors ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
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    cis-trans models for post-transcriptional gene regulation (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klausner, R D -- Harford, J B -- New York, N.Y. -- Science. 1989 Nov 17;246(4932):870-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Biology and Metabolism Branch, National Institute of Child Health and Human Development, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2683086" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Gene Expression Regulation ; *Models, Genetic ; Molecular Sequence Data ; Nucleic Acid Conformation ; *Protein Biosynthesis ; RNA, Messenger/genetics ; Transcription, Genetic
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    The choosing of the NIH director (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koshland, D E Jr -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):981.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587989" target="_blank"〉PubMed〈/a〉
    Keywords: Abortion, Legal ; Female ; Humans ; National Institutes of Health (U.S.)/*organization & administration ; Politics ; Pregnancy ; United States ; United States Dept. of Health and Human Services
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    Animal rights and animal wrongs (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koshland, D E Jr -- New York, N.Y. -- Science. 1989 Mar 10;243(4896):1253.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2922608" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Welfare ; Animals ; Societies ; United States ; Universities
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    Switch protein alters specificity of RNA polymerase containing a compartment-specific sigma factor (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-27
    Description: During sporulation in Bacillus subtilis, expression of developmental genes spoIVCB and cotD is induced in the mother cell compartment of the sporangium at morphological stages IV and V, respectively. A 27-kilodalton RNA polymerase sigma factor called sigma K (or sigma 27) has been found that causes weak transcription of spoIVCB and strong transcription of cotD. A 14-kD protein was also discovered that changes the specificity of sigma K-containing RNA polymerase, greatly stimulating spoIVCB transcription and markedly repressing cotD transcription. Both sigma K and the 14-kD protein are products of genes known to be required for expression of specific genes in the mother cell. Thus, sigma K directs gene expression in the mother cell and it is proposed that inactivation or sequestering of the 14-kD protein switches the temporal pattern of gene expression during the transition from stages IV to V of development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kroos, L -- Kunkel, B -- Losick, R -- GM18568/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jan 27;243(4890):526-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Developmental Biology, Harvard University, Cambridge, Massachusetts 02138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2492118" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacillus subtilis/*genetics/physiology ; Cloning, Molecular ; DNA-Directed RNA Polymerases/*genetics/isolation & purification ; Electrophoresis, Polyacrylamide Gel ; Gene Expression Regulation ; Molecular Sequence Data ; Promoter Regions, Genetic ; Sigma Factor/*genetics/isolation & purification ; Spores, Bacterial/genetics ; Transcription Factors/*genetics ; Transcription, Genetic
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    Translational blockade imposed by cytokine-derived UA-rich sequences (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-08-25
    Description: The messenger RNAs specifying certain proteins involved in the inflammatory response and certain oncoproteins contain a conserved UA-rich sequence in the 3' untranslated region. This sequence, which is composed of several interspersed repeats of the octanucleotide UUAUUUAU, has been shown to destabilize mRNA in some eukaryotes. However, this effect is not seen when mRNAs are transferred to Xenopus oocytes, which made it possible to separate stability from translational regulation. For interferon, granulocyte-macrophage colony-stimulating factor, and c-fos RNAs, the UA-rich sequence was observed to preclude mRNA translation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kruys, V -- Marinx, O -- Shaw, G -- Deschamps, J -- Huez, G -- New York, N.Y. -- Science. 1989 Aug 25;245(4920):852-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departement de Biologie Moleculaire, Universite Libre de Bruxelles, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2672333" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Colony-Stimulating Factors/*genetics ; Granulocyte-Macrophage Colony-Stimulating Factor ; Growth Substances/*genetics ; Interferon Type I/*genetics ; Molecular Sequence Data ; *Protein Biosynthesis ; *Proto-Oncogenes ; RNA, Messenger/metabolism
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    Enhanced activity and altered specificity of phospholipase A2 by deletion of a surface loop (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-04-07
    Description: Protein engineering and x-ray crystallography have been used to study the role of a surface loop that is present in pancreatic phospholipases but is absent in snake venom phospholipases. Removal of residues 62 to 66 from porcine pancreatic phospholipase A2 does not change the binding constant for micelles significantly, but it improves catalytic activity up to 16 times on micellar (zwitterionic) lecithin substrates. In contrast, the decrease in activity on negatively charged substrates is greater than fourfold. A crystallographic study of the mutant enzyme shows that the region of the deletion has a well-defined structure that differs from the structure of the wild-type enzyme. No structural changes in the active site of the enzyme were detected.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kuipers, O P -- Thunnissen, M M -- de Geus, P -- Dijkstra, B W -- Drenth, J -- Verheij, H M -- de Haas, G H -- New York, N.Y. -- Science. 1989 Apr 7;244(4900):82-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Utrecht, The Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2704992" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Crystallography ; Enzyme Activation ; Kinetics ; Molecular Sequence Data ; Mutation ; Pancreas/enzymology ; Phospholipases/*metabolism ; Phospholipases A/genetics/*metabolism/physiology ; Phospholipases A2 ; *Protein Conformation ; Snake Venoms/analysis ; Structure-Activity Relationship ; Swine
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    Adenylyl cyclase amino acid sequence: possible channel- or transporter-like structure (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-06-30
    Description: Complementary DNA's that encode an adenylyl cyclase were isolated from a bovine brain library. Most of the deduced amino acid sequence of 1134 residues is divisible into two alternating sets of hydrophobic and hydrophilic domains. Each of the two large hydrophobic domains appears to contain six transmembrane spans. Each of the two large hydrophilic domains contains a sequence that is homologous to a single cytoplasmic domain of several guanylyl cyclases; these sequences may represent nucleotide binding sites. An unexpected topographical resemblance between adenylyl cyclase and various plasma membrane channels and transporters was observed. This structural complexity suggests possible, unappreciated functions for this important enzyme.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krupinski, J -- Coussen, F -- Bakalyar, H A -- Tang, W J -- Feinstein, P G -- Orth, K -- Slaughter, C -- Reed, R R -- Gilman, A G -- CA16519/CA/NCI NIH HHS/ -- GM12230/GM/NIGMS NIH HHS/ -- GM34497/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1558-64.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, 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/2472670" target="_blank"〉PubMed〈/a〉
    Keywords: *Adenylyl Cyclases/genetics/isolation & purification ; Amino Acid Sequence ; Animals ; Base Sequence ; Brain/enzymology ; *Carrier Proteins ; Cattle ; Cell Line ; Cloning, Molecular ; DNA/genetics ; Electrophoresis, Polyacrylamide Gel ; *Ion Channels ; Membrane Proteins ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Protein Conformation ; Transfection
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    An assay for circulating antibodies to a major etiologic virus of human non-A, non-B hepatitis (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-04-21
    Description: A specific assay has been developed for a blood-borne non-A, non-B hepatitis (NANBH) virus in which a polypeptide synthesized in recombinant yeast clones of the hepatitis C virus (HCV) is used to capture circulating viral antibodies. HCV antibodies were detected in six of seven human sera that were shown previously to transmit NANBH to chimpanzees. Assays of ten blood transfusions in the United States that resulted in chronic NANBH revealed that there was at least one positive blood donor in nine of these cases and that all ten recipients seroconverted during their illnesses. About 80 percent of chronic, post-transfusion NANBH (PT-NANBH) patients from Italy and Japan had circulating HCV antibody; a much lower frequency (15 percent) was observed in acute, resolving infections. In addition, 58 percent of NANBH patients from the United States with no identifiable source of parenteral exposure to the virus were also positive for HCV antibody. These data indicate that HCV is a major cause of NANBH throughout the world.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kuo, G -- Choo, Q L -- Alter, H J -- Gitnick, G L -- Redeker, A G -- Purcell, R H -- Miyamura, T -- Dienstag, J L -- Alter, M J -- Stevens, C E -- New York, N.Y. -- Science. 1989 Apr 21;244(4902):362-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chiron Corporation, Emeryville, CA 94608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2496467" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Viral/*analysis ; Blood Donors ; Blood Transfusion ; Hepatitis C/*immunology/transmission ; Hepatitis Viruses/*immunology ; Hepatitis, Viral, Human/*immunology ; Humans ; Italy ; Japan ; United States
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    The MHC-binding and gp120-binding functions of CD4 are separable (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-08-18
    Description: CD4 is a cell surface glycoprotein that is thought to interact with nonpolymorphic determinants of class II major histocompatibility (MHC) molecules. CD4 is also the receptor for the human immunodeficiency virus (HIV), binding with high affinity to the HIV-1 envelope glycoprotein, gp120. Homolog-scanning mutagenesis was used to identify CD4 regions that are important in class II MHC binding and to determine whether the gp120 and class II MHC binding sites of CD4 are related. Class II MHC binding was abolished by mutations in each of the first three immunoglobulin-like domains of CD4. The gp120 binding could be abolished without affecting class II MHC binding and vice versa, although at least one mutation examined reduced both functions significantly. These findings indicate that, while there may be overlap between the gp120 and class II MHC binding sites of CD4, these sites are distinct and can be separated. Thus it should be possible to design CD4 analogs that can block HIV infectivity but intrinsically lack the ability to affect the normal immune response by binding to class II MHC molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lamarre, D -- Ashkenazi, A -- Fleury, S -- Smith, D H -- Sekaly, R P -- Capon, D J -- New York, N.Y. -- Science. 1989 Aug 18;245(4919):743-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire d'Immunologie, Institut de Recherches Cliniques de Montreal, Quebec, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2549633" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, Surface ; Binding Sites ; DNA, Recombinant ; HIV/*metabolism ; HIV Envelope Protein gp120 ; HLA-DP Antigens/immunology ; Histocompatibility Antigens Class II/*immunology ; Humans ; Hybridomas ; Mice ; Molecular Sequence Data ; Mutation ; Receptors, HIV ; Receptors, Virus/genetics/immunology/*metabolism ; Retroviridae Proteins/immunology/*metabolism ; Rosette Formation ; Structure-Activity Relationship ; T-Lymphocytes/immunology/metabolism ; Transfection
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    Reverse transcriptase in a clinical strain of Escherichia coli: production of branched RNA-linked msDNA (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-02-24
    Description: Branched RNA-linked multicopy single-stranded DNA (msDNA) originally detected in myxobacteria has now been found in a clinical isolate of Escherichia coli. Although lacking homology in the primary structure, the E. coli msDNA is similar in secondary structure to the myxobacterial msDNA's, including the 2',5'-phosphodiester linkage between RNA and DNA. A chromosomal DNA fragment responsible for the production of msDNA was cloned in an E. coli K12 strain; its DNA sequence revealed an open reading frame (ORF) of 586 amino acid residues. The ORF shows sequence similarity with retroviral reverse transcriptases and ribonuclease H. Disruption of the ORF blocked msDNA production, indicating that this gene is essential for msDNA synthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lampson, B C -- Sun, J -- Hsu, M Y -- Vallejo-Ramirez, J -- Inouye, S -- Inouye, M -- F32 GM11970-01A1/GM/NIGMS NIH HHS/ -- GM26843/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Feb 24;243(4894 Pt 1):1033-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey, Piscataway 08854.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2466332" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cloning, Molecular ; DNA Probes ; DNA Restriction Enzymes ; DNA, Bacterial/genetics ; DNA, Single-Stranded/analysis/biosynthesis/*genetics ; Endoribonucleases/genetics ; Escherichia coli/enzymology/*genetics ; Genes, Bacterial ; HIV/enzymology/genetics ; Human T-lymphotropic virus 1/enzymology/genetics ; Molecular Sequence Data ; Myxococcales/genetics ; Nucleic Acid Hybridization ; RNA, Bacterial/analysis/biosynthesis/*genetics ; RNA-Directed DNA Polymerase/*genetics ; Retroviridae/*enzymology/genetics ; Ribonuclease H ; Sequence Homology, Nucleic Acid ; Transformation, Bacterial
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    Membrane anchoring of a human IgG Fc receptor (CD16) determined by a single amino acid (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-22
    Description: CD16 is a low-affinity immunoglobulin G (IgG) Fc receptor that is expressed on natural killer (NK) cells, granulocytes, activated macrophages, and some T lymphocytes. Two similar genes, CD16-I and CD16-II, encode membrane glycoproteins that are anchored by phosphatidylinositol (PI)-glycan and transmembrane polypeptides, respectively. The primary structural requirements for PI-linkage were examined by constructing a series of hybrid cDNA molecules. Although both cDNA's have an identical COOH-terminal hydrophobic segment, CD16-I has Ser203 whereas CD16-II has Phe203. Conversion of Phe to Ser in CD16-II permits expression of a PI-glycan-anchored glycoprotein, whereas conversion of Ser to Phe in CD16-I prevents PI-glycan linkage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lanier, L L -- Cwirla, S -- Yu, G -- Testi, R -- Phillips, J H -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1611-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Becton Dickinson Monoclonal Center, Inc., Mountain View, CA 94043.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2531919" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/*genetics ; Antigens, Differentiation/*genetics/metabolism ; Base Sequence ; Cell Line ; Cell Membrane/immunology ; Codon/genetics ; *Genes, Immunoglobulin ; Granulocytes/immunology ; Humans ; Membrane Glycoproteins/*genetics ; Molecular Sequence Data ; *Phenylalanine ; Receptors, Fc/*genetics/metabolism ; Receptors, IgG ; *Serine ; Transfection
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    Multiple mutations in HIV-1 reverse transcriptase confer high-level resistance to zidovudine (AZT) (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-01
    Description: Human immunodeficiency virus (HIV) isolates with reduced sensitivity to zidovudine (3'-azido-3'-deoxythymidine, AZT) from individuals with acquired immunodeficiency syndrome (AIDS) or AIDS-related complex were studied to determine the genetic basis of their resistance. Most were sequential isolates obtained at the initiation of and during therapy. Comparative nucleotide sequence analysis of the reverse transcriptase (RT) coding region from five pairs of sensitive and resistant isolates identified three predicted amino acid substitutions common to all the resistant strains (Asp67----Asn, Lys70----Arg, Thr215----Phe or Tyr) plus a fourth in three isolates (Lys219----Gln). Partially resistant isolates had combinations of these four changes. An infectious molecular clone constructed with these four mutations in RT yielded highly resistant HIV after transfection of T cells. The reproducible nature of these mutations should make it possible to develop rapid assays to predict zidovudine resistance by performing polymerase chain reaction amplification of nucleic acid from peripheral blood lymphocytes, thereby circumventing current lengthy HIV isolation and sensitivity testing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Larder, B A -- Kemp, S D -- New York, N.Y. -- Science. 1989 Dec 1;246(4934):1155-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Sciences Department, Wellcome Research Laboratories, Beckenham, Kent, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2479983" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS-Related Complex/drug therapy/microbiology ; Acquired Immunodeficiency Syndrome/drug therapy/*microbiology ; Amino Acid Sequence ; Cloning, Molecular ; Drug Resistance/genetics ; Genes, Viral ; HIV-1/drug effects/*enzymology/genetics ; Humans ; Molecular Sequence Data ; *Mutation ; RNA-Directed DNA Polymerase/*genetics ; Zidovudine/pharmacology/*therapeutic use
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    Defining the inside and outside of a catalytic RNA molecule (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-21
    Description: Ribozymes are RNA molecules that catalyze biochemical reactions. Fe(II)-EDTA, a solvent-based reagent which cleaves both double- and single-stranded RNA, was used to investigate the structure of the Tetrahymena ribozyme. Regions of cleavage alternate with regions of substantial protection along the entire RNA molecule. In particular, most of the catalytic core shows greatly reduced cleavage. These data constitute experimental evidence that an RNA enzyme, like a protein enzyme, has an interior and an exterior. Determination of positions where the phosphodiester backbone of the RNA is on the inside or on the outside of the molecule provides major constraints for modeling the three-dimensional structure of the Tetrahymena ribozyme. This approach should be generally informative for structured RNA molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Latham, J A -- Cech, T R -- GM 11227-03/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jul 21;245(4915):276-82.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Chemistry and Biochemistry, University of Colorado, Boulder 80309-0215.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2501870" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoradiography ; Base Sequence ; Binding Sites ; Crystallography ; Edetic Acid ; Electrophoresis, Polyacrylamide Gel ; Ferrous Compounds ; Molecular Sequence Data ; Molecular Structure ; *Nucleic Acid Conformation ; *RNA Splicing ; RNA, Catalytic ; RNA, Fungal/analysis ; *RNA, Ribosomal/analysis/metabolism ; RNA, Transfer, Phe/analysis ; Tetrahymena/*genetics
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    Monitoring the AIDS epidemic in the United States: a network approach (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-09
    Description: Respondents in the 1988 General Social Survey (GSS) were asked to scan their acquaintance networks to identify all those who had been a victim of a homicide or had acquired immunodeficiency syndrome (AIDS). Estimates of the sex, race, age, and regional breakdowns for homicides in the last year and for people with AIDS were compared with official statistics. The GSS estimates for the distribution of homicide victims replicate the official statistics quite well. The GSS estimates for AIDS cases suggest that the data provided to the Centers for Disease Control may underestimate by a substantial margin the prevalence of AIDS in the white population of higher socioeconomic status, overstate the relative prevalence of the disease in the minority populations, underestimate the prevalence of the disease in the Midwest, and overstate it for the East.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Laumann, E O -- Gagnon, J H -- Michaels, S -- Michael, R T -- Coleman, J S -- N0I-HD-8-2907/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1186-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Sociology, University of Chicago, IL 60637.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543079" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*epidemiology ; Centers for Disease Control and Prevention (U.S.) ; Demography ; Female ; Humans ; Male ; Population Surveillance ; United States
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    Identification of the molecular defect in a family with spondyloepiphyseal dysplasia (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-26
    Description: Spondyloepiphyseal dysplasias (SED) are a heterogeneous group of inherited disorders characterized by disproportionate short stature and pleiotropic involvement of the skeletal and ocular systems. Evidence has suggested that SED may result from structural defects in type II collagen. To confirm the validity of this hypothesis, the structure of the "candidate" type II collagen gene (COL2A1) has been directly examined in a relatively large SED family. Coarse scanning of the gene by Southern blot hybridization identified an abnormal restriction pattern in one of the affected members of the kindred. Analysis of selected genomic fragments, amplified by the polymerase chain reaction, precisely localized the molecular defect and demonstrated that all affected family members carried the same heterozygous single-exon deletion. As a consequence of the mutation, nearly 90 percent of the assembled type II collagen homotrimers are expected to contain one or more procollagen subunits harboring an interstitial deletion of 36 amino acids in the triple helical domain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, B -- Vissing, H -- Ramirez, F -- Rogers, D -- Rimoin, D -- AR-38648/AR/NIAMS NIH HHS/ -- HD-22657/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 May 26;244(4907):978-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, State University of New York Health Science Center, Brooklyn 11203.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543071" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Child, Preschool ; Chromosome Deletion ; Collagen/*genetics ; DNA Restriction Enzymes ; DNA-Directed DNA Polymerase ; Exons ; Female ; Gene Amplification ; Humans ; Macromolecular Substances ; Male ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Osteochondrodysplasias/*genetics ; Pedigree ; Procollagen/genetics
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    High rate of HTLV-II infection in seropositive i.v. drug abusers in New Orleans (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-28
    Description: Confirmed infection with HTLV-II (human T cell leukemia virus type II) has been described only in rare cases. The major limitation to serological diagnosis of HTLV-II has been the difficulty of distinguishing HTLV-II from HTLV-I (human T cell leukemia virus type I) infection, because of substantial cross-reactivity between the viruses. A sensitive modification of the polymerase chain reaction method was used to provide unambiguous molecular evidence that a significant proportion of intravenous drug abusers are infected with HTLV, and the majority of these individuals are infected with HTLV-II rather than HTLV-I. Of 23 individuals confirmed by polymerase chain reaction analysis to be infected with HTLV, 21 were identified to be infected with HTLV-II, and 2 were infected with HTLV-I. Molecular identification of an HTLV-II--infected population provides an opportunity to investigate the pathogenicity of HTLV-II in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, H -- Swanson, P -- Shorty, V S -- Zack, J A -- Rosenblatt, J D -- Chen, I S -- New York, N.Y. -- Science. 1989 Apr 28;244(4903):471-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Diagnostics Division, Abbott Laboratories, North Chicago, IL 60064.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2655084" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; DNA, Viral/analysis ; DNA-Directed DNA Polymerase ; Genes, Viral ; HTLV-I Antibodies/analysis ; HTLV-I Infections/diagnosis/epidemiology/etiology ; HTLV-II Antibodies/*analysis ; HTLV-II Infections/diagnosis/*epidemiology/etiology ; Human T-lymphotropic virus 1/genetics/immunology ; Human T-lymphotropic virus 2/genetics/immunology ; Humans ; Immunoblotting ; Immunoenzyme Techniques ; Louisiana ; Molecular Sequence Data ; Sequence Homology, Nucleic Acid ; Substance-Related Disorders/*complications
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    Purification and complementary DNA cloning of a receptor for basic fibroblast growth factor (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-07
    Description: Basic fibroblast growth factor (bFGF) participates in many processes including early developmental events, angiogenesis, wound healing, and maintenance of neuronal cell viability. A 130-kilodalton protein was isolated on the basis of its ability to specifically bind to bFGF. A complementary DNA clone was isolated with an oligonucleotide probe corresponding to determined amino acid sequences of tryptic peptide fragments of the purified protein. The putative bFGF receptor encoded by this complementary DNA is a transmembrane protein that contains three extracellular immunoglobulin-like domains, an unusual acidic region, and an intracellular tyrosine kinase domain. These domains are arranged in a pattern that is different from that of any growth factor receptor described.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, P L -- Johnson, D E -- Cousens, L S -- Fried, V A -- Williams, L T -- CA 21765/CA/NCI NIH HHS/ -- R01 HL32898/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1989 Jul 7;245(4913):57-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, 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/2544996" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cells, Cultured ; Chick Embryo ; *Cloning, Molecular ; DNA/*genetics ; Fibroblast Growth Factors/*genetics ; Kinetics ; Mice ; Molecular Sequence Data ; Peptide Fragments/analysis ; Receptors, Cell Surface/*genetics/metabolism ; Receptors, Fibroblast Growth Factor ; Recombinant Proteins/metabolism
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    Three-dimensional solution structure of a single zinc finger DNA-binding domain (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-11
    Description: The three-dimensional solution structure of a zinc finger nucleic acid binding motif has been determined by nuclear magnetic resonance (NMR) spectroscopy. Spectra of a synthetic peptide corresponding to a single zinc finger from the Xenopus protein Xfin yielded distance and dihedral angle constraints that were used to generate structures from distance geometry and restrained molecular dynamics calculations. The zinc finger is an independently folded domain with a compact globular structure in which the zinc atom is bound by two cysteine and two histidine ligands. The polypeptide backbone fold consists of a well-defined helix, starting as alpha and ending as 3(10) helix, packed against two beta strands that are arranged in a hairpin structure. A high density of basic and polar amino acid side chains on the exposed face of the helix are probably involved in DNA binding.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, M S -- Gippert, G P -- Soman, K V -- Case, D A -- Wright, P E -- GM 36643/GM/NIGMS NIH HHS/ -- GM38794/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Aug 11;245(4918):635-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Research Institute of Scripps Clinic, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2503871" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Cysteine/metabolism ; DNA/*metabolism ; DNA-Binding Proteins/*metabolism ; Histidine/metabolism ; Hydrogen Bonding ; Magnetic Resonance Spectroscopy ; Metalloproteins/*metabolism ; Molecular Sequence Data ; Molecular Structure ; Protein Conformation ; Solutions ; Thermodynamics ; Xenopus ; Zinc/metabolism
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    Animal research and government policy (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-03
    Description: In the report "Synthetic CD4 peptide derivatives that inhibit HIV infection and cytopathicity" by Jeffrey D. Lifson et al. (5 Aug., p. 712), the last seven residues of the CD4 peptide (26-50) should have been SFLTKGP rather than STLTKGP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Langer, G A -- New York, N.Y. -- Science. 1989 Mar 3;243(4895):1126.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2922600" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Animals, Laboratory ; *Policy Making ; *Research ; United States ; *United States Dept. of Health and Human Services
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    Genome planners fear avalanche of red tape (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1543.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740900" target="_blank"〉PubMed〈/a〉
    Keywords: *Base Sequence ; Budgets/economics ; *Chromosome Mapping ; *Chromosomes, Human ; Humans ; International Cooperation ; National Institutes of Health (U.S.)/*organization & administration ; Research Support as Topic ; United States
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    Global ban sought on ivory trade (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1135.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2727699" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; Animals, Wild ; *Elephants ; Industry ; United States
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    Vascular endothelial growth factor is a secreted angiogenic mitogen (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-08
    Description: Vascular endothelial growth factor (VEGF) was purified from media conditioned by bovine pituitary folliculostellate cells (FC). VEGF is a heparin-binding growth factor specific for vascular endothelial cells that is able to induce angiogenesis in vivo. Complementary DNA clones for bovine and human VEGF were isolated from cDNA libraries prepared from FC and HL60 leukemia cells, respectively. These cDNAs encode hydrophilic proteins with sequences related to those of the A and B chains of platelet-derived growth factor. DNA sequencing suggests the existence of several molecular species of VEGF. VEGFs are secreted proteins, in contrast to other endothelial cell mitogens such as acidic or basic fibroblast growth factors and platelet-derived endothelial cell growth factor. Human 293 cells transfected with an expression vector containing a bovine or human VEGF cDNA insert secrete an endothelial cell mitogen that behaves like native VEGF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leung, D W -- Cachianes, G -- Kuang, W J -- Goeddel, D V -- Ferrara, N -- New York, N.Y. -- Science. 1989 Dec 8;246(4935):1306-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Genetech, South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2479986" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Blotting, Northern ; Cattle ; Cell Division ; Cloning, Molecular ; Endothelium, Vascular/*cytology ; Gene Library ; Humans ; Lymphokines/genetics/*physiology/secretion ; Molecular Sequence Data ; Neovascularization, Pathologic/*physiopathology ; Sequence Homology, Nucleic Acid ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
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    Selective amplification and cloning of four new members of the G protein-coupled receptor family (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-05
    Description: An approach based on the polymerase chain reaction has been devised to clone new members of the family of genes encoding guanosine triphosphate-binding protein (G protein)-coupled receptors. Degenerate primers corresponding to consensus sequences of the third and sixth transmembrane segments of available receptors were used to selectively amplify and clone members of this gene family from thyroid complementary DNA. Clones encoding three known receptors and four new putative receptors were obtained. Sequence comparisons established that the new genes belong to the G protein-coupled receptor family. Close structural similarity was observed between one of the putative receptors and the 5HT1a receptor. Two other molecules displayed common sequence characteristics, suggesting that they are members of a new subfamily of receptors with a very short nonglycosylated (extracellular) amino-terminal extension.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Libert, F -- Parmentier, M -- Lefort, A -- Dinsart, C -- Van Sande, J -- Maenhaut, C -- Simons, M J -- Dumont, J E -- Vassart, G -- New York, N.Y. -- Science. 1989 May 5;244(4904):569-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Recherche Interdisciplinaire, Faculte de Medecine, Universite Libre de Bruxelles, Campus Erasme, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2541503" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; *Cloning, Molecular ; DNA/genetics ; DNA-Directed DNA Polymerase ; GTP-Binding Proteins/*metabolism ; *Gene Amplification ; Humans ; Molecular Sequence Data ; Receptors, Adrenergic, alpha/genetics ; Receptors, Adrenergic, beta/genetics ; Receptors, Muscarinic/genetics ; Receptors, Neurokinin-2 ; Receptors, Neurotransmitter/*genetics ; Receptors, Serotonin/genetics ; Sequence Homology, Nucleic Acid ; Thyroid Gland/analysis ; Transcription, Genetic
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    Information policy (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lindberg, D A -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1547-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2688089" target="_blank"〉PubMed〈/a〉
    Keywords: *Costs and Cost Analysis ; MEDLARS/*economics ; *National Library of Medicine (U.S.) ; United States
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    Purification, cloning, and expression of ciliary neurotrophic factor (CNTF) (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-24
    Description: Ciliary neurotrophic factor (CNTF) is one of a small number of proteins with neurotrophic activities distinct from nerve growth factor (NGF). CNTF has now been purified and cloned and the primary structure of CNTF from rabbit sciatic nerve has been determined. Biologically active CNTF has been transiently expressed from a rabbit complementary DNA clone. CNTF is a neural effector without significant sequence homologies to any previously reported protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, L F -- Mismer, D -- Lile, J D -- Armes, L G -- Butler, E T 3rd -- Vannice, J L -- Collins, F -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):1023-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Protein Chemistry Group, Synergen, Inc., Boulder, CO 80301.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587985" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; Ciliary Neurotrophic Factor ; Cloning, Molecular ; DNA/genetics ; Molecular Sequence Data ; Nerve Growth Factors/*genetics ; Nerve Tissue Proteins/biosynthesis/*genetics/isolation & purification ; Rabbits ; Recombinant Proteins/biosynthesis ; Sciatic Nerve/metabolism ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Polymerase chain reaction with single-sided specificity: analysis of T cell receptor delta chain (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-13
    Description: In the polymerase chain reaction (PCR), two specific oligonucleotide primers are used to amplify the sequences between them. However, this technique is not suitable for amplifying genes that encode molecules where the 5' portion of the sequences of interest is not known, such as the T cell receptor (TCR) or immunoglobulins. Because of this limitation, a novel technique, anchored polymerase chain reaction (A-PCR), was devised that requires sequence specificity only on the 3' end of the target fragment. It was used to analyze TCR delta chain mRNA's from human peripheral blood gamma delta T cells. Most of these cells had a V delta gene segment not previously described (V delta 3), and the delta chain junctional sequences formed a discrete subpopulation compared with those previously reported.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Loh, E Y -- Elliott, J F -- Cwirla, S -- Lanier, L L -- Davis, M M -- New York, N.Y. -- Science. 1989 Jan 13;243(4888):217-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Medicine and Microbiology and Immunology, Stanford University School of Medicine, CA 94305-5402.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2463672" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cell Line ; Gene Amplification ; *Genes ; Humans ; Macromolecular Substances ; Molecular Sequence Data ; Oligonucleotide Probes ; RNA, Messenger/genetics ; RNA-Directed DNA Polymerase ; Receptors, Antigen, T-Cell/*genetics ; T-Lymphocytes/immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 82
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    Recombinant 47-kilodalton cytosol factor restores NADPH oxidase in chronic granulomatous disease (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-28
    Description: A 47-kilodalton neutrophil cytosol factor (NCF-47k), required for activation of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase superoxide (O2-.) production, is absent in most patients with autosomal recessive chronic granulomatous disease (AR-CGD). NCF-47k cDNAs were cloned from an expression library. The largest clone predicted a 41.9-kD protein that contained an arginine and serine-rich COOH-terminal domain with potential protein kinase C phosphorylation sites. A 33-amino acid segment of NCF-47k shared 49% identity with ras p21 guanosine triphosphatase activating protein. Recombinant NCF-47k restored O2-. -producing activity to AR-CGD neutrophil cytosol in a cell-free assay. Production of active recombinant NCF-47k will enable functional regions of this molecule to be mapped.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lomax, K J -- Leto, T L -- Nunoi, H -- Gallin, J I -- Malech, H L -- New York, N.Y. -- Science. 1989 Jul 28;245(4916):409-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bacterial Diseases Section, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2547247" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Blotting, Northern ; Cloning, Molecular ; DNA/*genetics ; Granulomatous Disease, Chronic/enzymology/*genetics ; Humans ; Immunoblotting ; Molecular Sequence Data ; NADH, NADPH Oxidoreductases/*metabolism ; NADPH Oxidase ; Neutrophils/*metabolism ; Phosphoproteins/*genetics/metabolism ; Phosphorylation ; Recombinant Proteins/genetics/metabolism ; Superoxides/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 83
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    Minor errors in two published sequences (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lomax, K J -- Leto, T L -- Nunoi, H -- Gallin, J I -- Malech, H L -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):987.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587992" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cytosol/enzymology ; DNA/genetics ; Molecular Sequence Data ; Oxidoreductases/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 84
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    Correct folding of circularly permuted variants of a beta alpha barrel enzyme in vivo (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-13
    Description: An important question in protein folding is whether the natural amino and carboxyl termini and the given order of secondary structure segments are critical to the stability and to the folding pathway of proteins. Here it is shown that two circularly permuted versions of the gene of a single-domain beta alpha barrel enzyme can be expressed in Escherichia coli. The variants are enzymically active and are practically indistinguishable from the original enzyme by several structural and spectroscopic criteria, despite the creation of new termini and the cleavage of a surface loop. This novel genetic approach should be useful for protein folding studies both in vitro and in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luger, K -- Hommel, U -- Herold, M -- Hofsteenge, J -- Kirschner, K -- New York, N.Y. -- Science. 1989 Jan 13;243(4888):206-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Abteilung Biophysikalische Chemie, Universitat Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2643160" target="_blank"〉PubMed〈/a〉
    Keywords: *Aldose-Ketose Isomerases ; Amino Acid Sequence ; Base Sequence ; Carbohydrate Epimerases/*genetics/metabolism ; Circular Dichroism ; *Cloning, Molecular ; Enzyme Stability ; Escherichia coli/*enzymology/genetics ; *Genes ; Genetic Variation ; Kinetics ; Molecular Sequence Data ; *Protein Conformation ; Spectrometry, Fluorescence ; Spectrophotometry, Ultraviolet
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 85
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    Premature p34cdc2 activation required for apoptosis (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-02-25
    Description: Activation of the serine-threonine kinase p34cdc2 at an inappropriate time during the cell cycle leads to cell death that resembles apoptosis. Premature activation of p34cdc2 was shown to be required for apoptosis induced by a lymphocyte granule protease. The kinase was rapidly activated and tyrosine dephosphorylated at the initiation of apoptosis. DNA fragmentation and nuclear collapse could be prevented by blocking p34cdc2 activity with excess peptide substrate, or by inactivating p34cdc2 in a temperature-sensitive mutant. Premature p34cdc2 activation may be a general mechanism by which cells induced to undergo apoptosis initiate the disruption of the nucleus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shi, L -- Nishioka, W K -- Th'ng, J -- Bradbury, E M -- Litchfield, D W -- Greenberg, A H -- New York, N.Y. -- Science. 1994 Feb 25;263(5150):1143-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Manitoba Institute of Cell Biology, University of Manitoba, Winnipeg, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8108732" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Apoptosis ; CDC2 Protein Kinase/*metabolism ; DNA Damage ; Deoxyribonucleases/pharmacology ; Enzyme Activation ; Enzyme Induction ; Membrane Glycoproteins/pharmacology ; Mice ; Mitosis ; Molecular Sequence Data ; Perforin ; Phosphorylation ; Pore Forming Cytotoxic Proteins ; Serine Endopeptidases/pharmacology ; Tumor Cells, Cultured
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  • 86
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    Cloning and sequencing of porcine LH-hCG receptor cDNA: variants lacking transmembrane domain (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-04
    Description: Complementary DNA clones, encoding the LH-hCG (luteinizing hormone-human choriogonadotropic hormone) receptor were isolated by screening a lambda gt11 library with monoclonal antibodies. The primary structure of the protein was deduced from the DNA sequence analysis; the protein contains 696 amino acids with a putative signal peptide of 27 amino acids. Hydropathy analysis suggests the existence of seven transmembrane domains that show homology with the corresponding regions of other G protein-coupled receptors. Three other types of clones corresponding to shorter proteins were observed, in which the putative transmembrane domain was absent. These probably arose through alternative splicing. RNA blot analysis showed similar patterns in testis and ovary with a major RNA of 4700 nucleotides and several minor species. The messenger RNA was expressed in COS-7 cells, yielding a protein that bound hCG with the same affinity as the testicular receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Loosfelt, H -- Misrahi, M -- Atger, M -- Salesse, R -- Vu Hai-Luu Thi, M T -- Jolivet, A -- Guiochon-Mantel, A -- Sar, S -- Jallal, B -- Garnier, J -- New York, N.Y. -- Science. 1989 Aug 4;245(4917):525-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut National de la Sante et de la Recherche Medicale Unite 135, Hopital de Bicetre, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2502844" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Membrane/*metabolism ; *Cloning, Molecular ; DNA/*genetics ; Female ; GTP-Binding Proteins/metabolism ; Male ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Ovary/analysis ; Protein Sorting Signals/genetics ; RNA, Messenger/analysis/genetics ; Receptors, LH/*genetics/metabolism ; Sequence Homology, Nucleic Acid ; Swine ; Testis/analysis ; Tissue Distribution
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  • 87
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    Financial impact of animal regulation (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glantz, S A -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1531.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740895" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Experimentation ; *Animal Welfare ; Animals ; *Animals, Laboratory ; *Economics ; Federal Government ; *Government Regulation ; *Legislation, Veterinary ; National Institutes of Health (U.S.) ; United States
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  • 88
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    House trims off academic pork (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):990.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587994" target="_blank"〉PubMed〈/a〉
    Keywords: Politics ; *Research Support as Topic ; United States ; Universities/*economics
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  • 89
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    Human KGF is FGF-related with properties of a paracrine effector of epithelial cell growth (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-18
    Description: Keratinocyte growth factor (KGF) is a human mitogen that is specific for epithelial cells. The complementary DNA sequence of KGF demonstrates that it is a member of the fibroblast growth factor family. The KGF transcript was present in stromal cells derived from epithelial tissues. By comparison with the expression of other epithelial cell mitogens, only KGF, among known human growth factors, has the properties of a stromal mediator of epithelial cell proliferation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finch, P W -- Rubin, J S -- Miki, T -- Ron, D -- Aaronson, S A -- New York, N.Y. -- Science. 1989 Aug 18;245(4919):752-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cellular and Molecular Biology, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2475908" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Division ; Codon ; DNA/genetics/isolation & purification ; Epithelial Cells ; Epithelium/analysis/metabolism ; Fibroblast Growth Factor 10 ; Fibroblast Growth Factor 7 ; *Fibroblast Growth Factors/genetics ; Fibroblasts/metabolism ; Gene Expression Regulation ; Growth Substances/*genetics/physiology ; Humans ; Mesoderm/metabolism ; Mice ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Oligonucleotide Probes ; RNA/analysis ; Sequence Homology, Nucleic Acid ; Skin/analysis ; Tissue Distribution ; Transcription, Genetic
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  • 90
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    Human diabetes associated with a mutation in the tyrosine kinase domain of the insulin receptor (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-07
    Description: Insulin receptor complementary DNA has been cloned from an insulin-resistant individual whose receptors have impaired tyrosine protein kinase activity. One of this individual's alleles has a mutation in which valine is substituted for Gly996, the third glycine in the conserved Gly-X-Gly-X-X-Gly motif in the putative binding site fo adenosine triphosphate. Expression of the mutant receptor by transfection into Chinese hamster ovary cells confirmed that the mutation impairs tyrosine kinase activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Odawara, M -- Kadowaki, T -- Yamamoto, R -- Shibasaki, Y -- Tobe, K -- Accili, D -- Bevins, C -- Mikami, Y -- Matsuura, N -- Akanuma, Y -- New York, N.Y. -- Science. 1989 Jul 7;245(4913):66-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Third Department of Internal Medicine, Faculty of Medicine, University of Tokyo, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2544998" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Base Sequence ; Diabetes Mellitus, Type 2/*genetics ; *Genes ; Humans ; Insulin Resistance ; Molecular Sequence Data ; *Mutation ; Protein-Tyrosine Kinases/*genetics ; Receptor, Insulin/*genetics
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  • 91
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    Preferential heterodimer formation by isolated leucine zippers from fos and jun (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-11
    Description: The products of the nuclear oncogenes fos and jun are known to form heterodimers that bind to DNA and modulate transcription. Both proteins contain a leucine zipper that is important for heterodimer formation. Peptides corresponding to these leucine zippers were synthesized. When mixed, these peptides preferentially form heterodimers over homodimers by at least 1000-fold. Both homodimers and the heterodimer are parallel alpha helices. The leucine zipper regions from Fos and Jun therefore correspond to autonomous helical dimerization sites that are likely to be short coiled coils, and these regions are sufficient to determine the specificity of interaction between Fos and Jun. The Fos leucine zipper forms a relatively unstable homodimer. Instability of homodimers provides a thermodynamic driving force for preferential heterodimer formation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Shea, E K -- Rutkowski, R -- Stafford, W F 3rd -- Kim, P S -- RR05711/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1989 Aug 11;245(4918):646-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Cambridge, MA 02142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2503872" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Circular Dichroism ; *DNA-Binding Proteins ; Disulfides ; *Leucine ; Macromolecular Substances ; Molecular Sequence Data ; Peptide Fragments/chemical synthesis ; Protein Conformation ; *Proto-Oncogene Proteins ; Proto-Oncogene Proteins c-fos ; Proto-Oncogene Proteins c-jun ; *Transcription Factors
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  • 92
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    NSF opens high-speed computer network (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1989 Jan 6;243(4887):22-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911716" target="_blank"〉PubMed〈/a〉
    Keywords: *Computer Systems ; Government Agencies/*organization & administration ; United States
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  • 93
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    The Drug Czar: no "Walter Wallflower" (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1989 Mar 10;243(4896):1287.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2646714" target="_blank"〉PubMed〈/a〉
    Keywords: Government Agencies/*history ; History, 20th Century ; Humans ; *Street Drugs ; Substance-Related Disorders/*prevention & control ; United States
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  • 94
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    Europe bans boeuf a l'estradiol (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1989 Jan 13;243(4888):161-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911728" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cattle ; *Estradiol/adverse effects ; Europe ; *European Union ; Humans ; *Meat ; United States
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  • 95
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    Street-wise crack research (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Dec 15;246(4936):1376-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2595359" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/transmission ; *Behavior ; Brain/drug effects/physiopathology ; *Cocaine/pharmacology ; Disease Outbreaks ; Dopamine/physiology ; Drug and Narcotic Control ; Humans ; Legislation, Drug ; Reward ; *Substance-Related Disorders/drug therapy/epidemiology/physiopathology/prevention ; & control ; United States
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  • 96
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    The CF gene hits the news (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1989 Sep 1;245(4921):924.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772645" target="_blank"〉PubMed〈/a〉
    Keywords: Cystic Fibrosis/*genetics ; *Genes ; Humans ; *Mass Media ; United States
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  • 97
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    Soviet sociology makes a comeback (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-11-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):991-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2587995" target="_blank"〉PubMed〈/a〉
    Keywords: International Cooperation ; *Sociology ; Ussr ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 98
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    Entomologists wane as insects wax (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):754-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814497" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Entomology/*trends ; Insect Vectors/*physiology ; Insects/classification/*physiology ; 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
    Published by American Association for the Advancement of Science (AAAS)
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  • 99
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    Bionet bites the dust (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1989 Jul 14;245(4914):126.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2749249" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; *Computer Communication Networks ; *Computer Systems ; *Information Systems ; *Molecular Biology ; National Institutes of Health (U.S.) ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 100
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    Ethics in science. NIH grapples with conflict of interest (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palca, J -- New York, N.Y. -- Science. 1989 Jul 7;245(4913):23.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740908" target="_blank"〉PubMed〈/a〉
    Keywords: *Biomedical Research ; *Ethics, Professional ; Federal Government ; Government Regulation ; *National Institutes of Health (U.S.) ; Research/*standards ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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