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  • Base Sequence  (412)
  • American Association for the Advancement of Science (AAAS)  (412)
  • American Association of Petroleum Geologists (AAPG)
  • 1985-1989  (412)
  • 1955-1959
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (412)
  • American Association of Petroleum Geologists (AAPG)
Years
Year
  • 1
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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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 2
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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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  • 3
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    Kappa B-specific DNA binding proteins: role in the regulation of human interleukin-2 gene expression (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-28
    Description: Transcriptional activation of the human interleukin-2 (IL-2) gene, like induction of the IL-2 receptor alpha (IL-2R alpha) gene and the type 1 human immunodeficiency virus (HIV-1), is shown to be modulated by a kappa B-like enhancer element. Mutation of a kappa B core sequence identified in the IL-2 promoter (-206 to -195) partially inhibits both mitogen- and HTLV-I Tax-mediated activation of this transcription unit and blocks the specific binding of two inducible cellular factors. These kappa B-specific proteins (80 to 90 and 50 to 55 kilodaltons) similarly interact with the functional kappa B enhancer present in the IL-2R alpha promoter. These data suggest that these kappa B-specific proteins have a role in the coordinate regulation of this growth factor-growth factor receptor gene system that controls T cell proliferation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoyos, B -- Ballard, D W -- Bohnlein, E -- Siekevitz, M -- Greene, W C -- A127053-01/PHS HHS/ -- New York, N.Y. -- Science. 1989 Apr 28;244(4903):457-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mount Sinai Medical Center, Department of Microbiology, New York, NY 10029.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2497518" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cell Line ; Cloning, Molecular ; DNA/metabolism ; DNA-Binding Proteins/*metabolism ; *Enhancer Elements, Genetic ; *Gene Expression Regulation ; Genes, Viral ; HIV-1/genetics ; HTLV-I Antigens/pharmacology ; Humans ; Immunoglobulin kappa-Chains/*genetics ; Interleukin-2/*genetics ; Molecular Weight ; Mutation ; Phytohemagglutinins/pharmacology ; Plasmids ; Promoter Regions, Genetic ; RNA, Messenger/biosynthesis ; T-Lymphocytes/metabolism ; Tetradecanoylphorbol Acetate/pharmacology ; Trans-Activators ; Transcription Factors/pharmacology ; Transcription, Genetic ; Transfection
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  • 4
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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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  • 5
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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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  • 6
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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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  • 7
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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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  • 8
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    Translational blockade imposed by cytokine-derived UA-rich sequences (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    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
    Print ISSN: 0036-8075
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  • 9
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    Sequence-specific isotope effects on the cleavage of DNA by bleomycin (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-22
    Description: Bleomycin is a metal- and oxygen-dependent DNA cleaver. The chemistry of DNA damage has been proposed to involve rate-limiting abstraction of the 4'-hydrogen. A DNA fragment has been prepared that contains [4'-2H]thymidine residues of high isotopic content. Primary kinetic isotope effects have been directly observed at individual thymidine residues with DNA sequencing technology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kozarich, J W -- Worth, L Jr -- Frank, B L -- Christner, D F -- Vanderwall, D E -- Stubbe, J -- GM 34454/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 22;245(4924):1396-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2476851" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Bleomycin ; *DNA Damage ; Deuterium ; Iron ; Oxygen ; Structure-Activity Relationship ; Thymidine
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  • 10
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    Adenylyl cyclase amino acid sequence: possible channel- or transporter-like structure (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    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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  • 11
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    DNA mismatch correction in a defined system (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-14
    Description: DNA mismatch correction is a strand-specific process involving recognition of noncomplementary Watson-Crick nucleotide pairs and participation of widely separated DNA sites. The Escherichia coli methyl-directed reaction has been reconstituted in a purified system consisting of MutH, MutL, and MutS proteins, DNA helicase II, single-strand DNA binding protein, DNA polymerase III holoenzyme, exonuclease I, DNA ligase, along with ATP (adenosine triphosphate), and the four deoxynucleoside triphosphates. This set of proteins can process seven of the eight base-base mismatches in a strand-specific reaction that is directed by the state of methylation of a single d(GATC) sequence located 1 kilobase from the mispair.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lahue, R S -- Au, K G -- Modrich, P -- F32 GM12684/GM/NIGMS NIH HHS/ -- GM23719/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jul 14;245(4914):160-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Duke University Medical Center, Durham, NC 27710.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2665076" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *DNA Repair ; DNA, Bacterial/biosynthesis/*genetics ; Escherichia coli/*genetics ; Methylation ; Mutation
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  • 12
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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)
    Details
    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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  • 13
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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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  • 14
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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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  • 15
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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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  • 16
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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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  • 17
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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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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 18
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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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  • 19
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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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  • 20
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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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  • 21
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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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  • 22
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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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  • 23
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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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  • 24
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    Identification of an AUUUA-specific messenger RNA binding protein (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-03
    Description: An important control point in gene expression is at the level of messenger RNA (mRNA) stability. The mRNAs of certain regulatory cellular proteins such as oncogenes, cytokines, lymphokines, and transcriptional activators are extremely labile. These messages share a common AUUUA pentamer in their 3' untranslated region, which confers cytoplasmic instability. A cytosolic protein was identified that binds specifically to RNA molecules containing four reiterations of the AUUUA structural element. This protein consists of three subunits and binds rapidly to AUUUA-containing RNA. Such protein-RNA complexes are resistant to the actions of denaturing and reducing agents, demonstrating very stable binding. The time course, stability, and specificity of the protein-AUUUA interaction suggests the possibility that the formation of this complex may target susceptible mRNA for rapid cytoplasmic degradation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malter, J S -- CA01427-01/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 3;246(4930):664-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Tulane University School of Medicine, New Orleans, LA 70112.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814487" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Binding, Competitive ; Carrier Proteins/isolation & purification/*metabolism ; Cell Line ; Humans ; Kinetics ; Macromolecular Substances ; Molecular Weight ; *Nucleocytoplasmic Transport Proteins ; RNA, Messenger/*metabolism ; *RNA-Binding Proteins ; Ribonuclease, Pancreatic
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  • 25
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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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  • 26
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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)
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    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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  • 27
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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
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    Mutations in a protein kinase C homolog confer phorbol ester resistance on Caenorhabditis elegans (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-31
    Description: The tpa-1 gene mediates the action of tumor-promoting phorbol esters in the nematode Caenorhabditis elegans. A genomic fragment that constitutes a portion of the tpa-1 gene was cloned by Tc1 transposon tagging and was used as a probe to screen a nematode complementary DNA library. One of the isolated complementary DNA clones had a nucleotide sequence that predicts a polypeptide of 526 amino acids. The predicted amino acid sequence revealed that the predicted tpa-1 protein sequence is highly similar to protein kinase C molecules from various animals, including man.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tabuse, Y -- Nishiwaki, K -- Miwa, J -- New York, N.Y. -- Science. 1989 Mar 31;243(4899):1713-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fundamental Research Laboratories, NEC Corporation, Kawasaki, Kanagawa, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2538925" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Caenorhabditis/*drug effects/genetics ; Cloning, Molecular ; Codon ; DNA/genetics ; DNA Restriction Enzymes ; Drug Resistance/genetics ; Genetic Markers ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Phenotype ; Phorbol Esters/*pharmacology ; Protein Kinase C/*genetics ; Sequence Homology, Nucleic Acid
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  • 29
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    A protein that binds to a cis-acting element of wheat histone genes has a leucine zipper motif (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-01
    Description: The structure and function of transcription factors of higher plants was studied by isolating cDNA clones encoding a wheat sequence-specific DNA binding protein. A hexameric nucleotide motif, ACGTCA, is located upstream from the TATA box of several plant histone genes. It has been suggested that this motif is essential for efficient transcription of the wheat histone H3 gene. A wheat nuclear protein, HBP-1 (histone DNA binding protein-1), which specifically binds to the hexameric motif, has previously been identified as a putative transcription factor. A cDNA clone encoding HBP-1 has been isolated on the basis of specific binding of HBP-1 to the hexameric motif. The deduced amino acid sequence indicates that HBP-1 contains the leucine zipper motif, which represents a characteristic property of several eukaryotic transcription factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tabata, T -- Takase, H -- Takayama, S -- Mikami, K -- Nakatsuka, A -- Kawata, T -- Nakayama, T -- Iwabuchi, M -- New York, N.Y. -- Science. 1989 Sep 1;245(4921):965-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Botany, Faculty of Science, Kyoto University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772648" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cloning, Molecular ; DNA/genetics ; DNA-Binding Proteins/*genetics ; *Genes ; Genes, Regulator ; Histones/*genetics ; Information Systems ; *Leucine ; Methylation ; Molecular Sequence Data ; Nuclear Proteins/*genetics ; Nucleic Acid Hybridization ; Plants/*genetics ; *Transcription, Genetic ; Triticum/genetics
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    p53: a frequent target for genetic abnormalities in lung cancer (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-10-27
    Description: Allele loss is a hallmark of chromosome regions harboring recessive oncogenes. Lung cancer frequently demonstrates loss of heterozygosity on 17p. Recent evidence suggests that the p53 gene located on 17p13 has many features of such an antioncogene. The p53 gene was frequently mutated or inactivated in all types of human lung cancer. The genetic abnormalities of p53 include gross changes such as homozygous deletions and abnormally sized messenger RNAs along with a variety of point or small mutations, which map to the p53 open reading frame and change amino acid sequence in a region highly conserved between mouse and man. In addition, very low or absent expression of p53 messenger RNA in lung cancer cell lines compared to normal lung was seen. These findings, coupled with the previous demonstration of 17p allele loss in lung cancer, strongly implicate p53 as an anti-oncogene whose disruption is involved in the pathogenesis of human lung cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takahashi, T -- Nau, M M -- Chiba, I -- Birrer, M J -- Rosenberg, R K -- Vinocour, M -- Levitt, M -- Pass, H -- Gazdar, A F -- Minna, J D -- New York, N.Y. -- Science. 1989 Oct 27;246(4929):491-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Cancer Institute-Navy Medical Oncology Branch, Bethesda, MD 20814.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2554494" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Carcinoid Tumor/genetics ; Carcinoma, Non-Small-Cell Lung/genetics ; Carcinoma, Small Cell/genetics ; Chromosomes, Human, Pair 17 ; DNA, Neoplasm/genetics ; Gene Amplification ; Humans ; Lung Neoplasms/*genetics ; Mutation ; Oncogene Proteins/*genetics ; Phosphoproteins/*genetics ; RNA, Messenger/genetics ; RNA, Neoplasm/genetics ; Ribonucleases ; Tumor Cells, Cultured ; Tumor Suppressor Protein p53
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    The anticodon contains a major element of the identity of arginine transfer RNAs (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-22
    Description: The contribution of the anticodon to the discrimination between cognate and noncognate tRNAs by Escherichia coli Arg-tRNA synthetase has been investigated by in vitro synthesis and aminoacylation of elongator methionine tRNA (tRNA(mMet) mutants. Substitution of the Arg anticodon CCG for the Met anticodon CAU leads to a dramatic increase in Arg acceptance by tRNA(mMet). A nucleotide (A20) previously identified by others in the dihydrouridine loop of tRNA(Arg)s makes a smaller contribution to the conversion of tRNA(mMet) identity from Met to Arg. The combined anticodon and dihydrouridine loop mutations yield a tRNA(mMet) derivative that is aminoacylated with near-normal kinetics by the Arg-tRNA synthetase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schulman, L H -- Pelka, H -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1595-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Biology and Cancer, Albert Einstein College of Medicine, Bronx, NY 10461.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2688091" target="_blank"〉PubMed〈/a〉
    Keywords: Anticodon/*genetics ; Arginine-tRNA Ligase/metabolism ; Base Sequence ; Escherichia coli/enzymology/genetics ; Kinetics ; Methionine-tRNA Ligase/metabolism ; Molecular Sequence Data ; Nucleic Acid Conformation ; RNA, Transfer/*genetics ; RNA, Transfer, Amino Acid-Specific/*genetics ; RNA, Transfer, Arg/*genetics ; Substrate Specificity ; T-Phages/genetics ; Transcription, Genetic
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    Mouse lymph node homing receptor cDNA clone encodes a glycoprotein revealing tandem interaction domains (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-03
    Description: Isolation of a clone encoding the mouse lymph node homing receptor reveals a deduced protein with an unusual protein mosaic architecture, containing a separate carbohydrate-binding (lectin) domain, an epidermal growth factor-like (EGF) domain, and an extracellular precisely duplicated repeat unit, which preserves the motif seen in the homologous repeat structure of complement regulatory proteins and other proteins. The receptor molecule is potentially highly glycosylated, and contains an apparent transmembrane region. Analysis of messenger RNA transcripts reveals a predominantly lymphoid distribution in direct relation to the cell surface expression of the MEL-14 determinant, and the cDNA clone is shown to confer the MEL-14 epitope in heterologous cells. The many novel features, including ubiquitination, embodied in this single receptor molecule form the basis for numerous approaches to the study of cell-cell interactions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Siegelman, M H -- van de Rijn, M -- Weissman, I L -- AI09022/AI/NIAID NIH HHS/ -- OIG43551/PHS HHS/ -- New York, N.Y. -- Science. 1989 Mar 3;243(4895):1165-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Stanford University School of Medicine, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2646713" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal ; Base Sequence ; Binding Sites ; Carbohydrate Metabolism ; Cell Membrane/metabolism ; DNA/*genetics ; Epidermal Growth Factor ; Glycosylation ; Lymph Nodes/*metabolism ; Membrane Glycoproteins/*genetics ; Mice ; Molecular Sequence Data ; Oligonucleotide Probes ; RNA, Messenger/genetics ; Receptors, Lymphocyte Homing ; Repetitive Sequences, Nucleic Acid ; Sequence Homology, Nucleic Acid ; Transcription, Genetic
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    Control of gene expression by artificial introns in Saccharomyces cerevisiae (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-16
    Description: Artificial yeast introns that show cold-sensitive splicing have been constructed. These conditional introns can be inserted into a target gene as an "intron cassette" without disrupting the coding information, allowing expression of the gene to be cold sensitive. Insertion of these intron cassettes rendered the yeast URA3 gene cold sensitive in its expression. The advantage of this intron-mediated control system is that any gene can be converted to a controllable gene by simple insertion of an intron.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoshimatsu, T -- Nagawa, F -- New York, N.Y. -- Science. 1989 Jun 16;244(4910):1346-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Biotechnology Research, Wakunaga Pharmaceutical Co., Ltd., Hiroshima, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2544026" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cold Temperature ; DNA Transposable Elements ; *Gene Expression Regulation ; *Genetic Engineering ; *Introns ; Molecular Sequence Data ; Saccharomyces cerevisiae/*genetics
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    A liver-specific enhancer in the core promoter region of human hepatitis B virus (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-03
    Description: An 88-base pair fragment in the core promoter of the human hepatitis B virus (HBV) contains a functional promoter and a strong liver-specific enhancer. This enhancer functions in human hepatoma cells, where it is much more active than the previously described HBV enhancer in stimulating expression of the linked bacterial chloramphenicol acetyltransferase gene expressed from heterologous promoters. Studies of the role of this enhancer-promoter in HBV may help to clarify mechanisms of gene expression in cells infected with HBV and the role of the virus in the pathogenesis of hepatitis and hepatocellular carcinoma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yee, J K -- New York, N.Y. -- Science. 1989 Nov 3;246(4930):658-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla 92093.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2554495" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Line ; Chloramphenicol O-Acetyltransferase/genetics ; Chromosome Deletion ; *Enhancer Elements, Genetic ; *Genes, Viral ; Hepatitis B virus/*genetics ; Liver/*metabolism ; Molecular Sequence Data ; Mutation ; *Promoter Regions, Genetic ; Simplexvirus/enzymology/genetics ; Thymidine Kinase/genetics ; Transcription, Genetic ; Transfection ; Viral Structural Proteins/genetics
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    The role of cis-acting promoter elements in tissue-specific albumin gene expression (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-04-21
    Description: The mouse albumin gene promoter has six closely spaced binding sites for nuclear proteins that are located between the TATA motif and nucleotide position -170. In vitro transcription with liver or spleen nuclear extracts of templates containing either mutated or polymerized albumin promoter elements establishes a hierarchy of the different protein binding sites for tissue-specific albumin gene transcription. The HNF-1 and C/EBP binding sites strongly activate transcription in a tissue-specific manner. The NF-Y binding site has a lower activation potential and is less specific, being equally efficient in liver and spleen nuclear extracts. The remaining elements are relatively weak activator sites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maire, P -- Wuarin, J -- Schibler, U -- New York, N.Y. -- Science. 1989 Apr 21;244(4902):343-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departement de Biologie Moleculaire, Sciences II, Geneva, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2711183" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; CCAAT-Enhancer-Binding Proteins ; Carrier Proteins/metabolism/pharmacology ; Cell Nucleus/metabolism ; DNA-Binding Proteins/*metabolism ; Dicarboxylic Acid Transporters ; *Gene Expression Regulation/drug effects ; Liver/metabolism/ultrastructure ; Mice ; Nuclear Proteins/metabolism/pharmacology ; *Promoter Regions, Genetic ; Serum Albumin/*genetics ; Spleen/metabolism/ultrastructure ; Templates, Genetic ; Transcription Factors ; Transcription, Genetic/drug effects
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    Parasitic protozoa and helminths: biological and immunological challenges (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-24
    Description: Parasitic protozoans and helminths pose considerable medical as well as scientific challenges. Investigations of the complex and very different life cycles of these organisms, their adaptation to the obligate parasitic mode of life, and their ability to face the hostile host environment have resulted in many exciting discoveries. Invasion of host erythrocytes by plasmodial sporozoites and intact skin by schistosomal cercariae are outlined as examples of the elaborate mechanisms of parasitism. Isolation and characterization of single protective antigens or subunit vaccines from these two organisms are examined as models for vaccine development. Finally, developments in exploring gene regulation in protozoans and free and parasitic nematodes are briefly outlined.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mahmoud, A A -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):1015-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH 44106.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2686024" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Eukaryota/genetics/pathogenicity/*physiology ; Gene Expression Regulation ; Helminthiasis/*immunology ; Helminths/genetics/pathogenicity/*physiology ; Humans ; Molecular Sequence Data ; Protozoan Infections/*immunology
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    Point mutational inactivation of the retinoblastoma antioncogene (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-17
    Description: The retinoblastoma (Rb) antioncogene encodes a nuclear phosphoprotein, p105-Rb, that forms protein complexes with the adenovirus E1A and SV40 large T oncoproteins. A novel, aberrant Rb protein detected in J82 bladder carcinoma cells was not able to form a complex with E1A and was less stable than p105-Rb. By means of a rapid method for the detection of mutations in Rb mRNA, this defective Rb protein was observed to result from a single point mutation within a splice acceptor sequence in J82 genomic DNA. This mutation eliminates a single exon and 35 amino acids from its encoded protein product.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Horowitz, J M -- Yandell, D W -- Park, S H -- Canning, S -- Whyte, P -- Buchkovich, K -- Harlow, E -- Weinberg, R A -- Dryja, T P -- CA 08131/CA/NCI NIH HHS/ -- CA 13106/CA/NCI NIH HHS/ -- CA 39826/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Feb 17;243(4893):937-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology, Cambridge 02142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2521957" target="_blank"〉PubMed〈/a〉
    Keywords: Adenovirus Early Proteins ; Antigens, Polyomavirus Transforming ; Base Sequence ; DNA-Binding Proteins/metabolism ; Eye Neoplasms/*genetics ; Humans ; Molecular Sequence Data ; *Mutation ; Oncogene Proteins, Viral/metabolism ; *Oncogenes ; Phosphoproteins/*genetics/metabolism ; Retinoblastoma/*genetics ; Retinoblastoma Protein
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    Mobile introns and intron-encoded proteins (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-12-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perlman, P S -- Butow, R A -- GM 35510/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Dec 1;246(4934):1106-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics, Ohio State University, Columbus 43210.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2479980" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; DNA/genetics ; *Introns/genetics ; Molecular Sequence Data ; Proteins/*genetics ; RNA/genetics ; *RNA Splicing/genetics
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    Genomic sequencing and methylation analysis by ligation mediated PCR (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-11-10
    Description: Genomic sequencing permits studies of in vivo DNA methylation and protein-DNA interactions, but its use has been limited because of the complexity of the mammalian genome. A newly developed genomic sequencing procedure in which a ligation mediated polymerase chain reaction (PCR) is used generates high quality, reproducible sequence ladders starting with only 1 microgram of uncloned mammalian DNA per reaction. Different sequence ladders can be created simultaneously by inclusion of multiple primers and visualized separately by rehybridization. Relatively little radioactivity is needed for hybridization and exposure times are short. Methylation patterns in genomic DNA are readily detectable; for example, 17 CpG dinucleotides in the 5' region of human X-linked PGK-1 (phosphoglycerate kinase 1) were found to be methylated on an inactive human X chromosome, but unmethylated on an active X chromosome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pfeifer, G P -- Steigerwald, S D -- Mueller, P R -- Wold, B -- Riggs, A D -- AG08196/AG/NIA NIH HHS/ -- GM355262BW/GM/NIGMS NIH HHS/ -- RR07003/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):810-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biology Section, Beckman Research Institute of the City of Hope, Duarte, CA 91010.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814502" target="_blank"〉PubMed〈/a〉
    Keywords: 5-Methylcytosine ; Animals ; Autoradiography ; Base Sequence ; Cytosine ; DNA/*genetics/metabolism ; Exons ; HeLa Cells ; Humans ; Methylation ; Molecular Sequence Data ; *Nucleic Acid Amplification Techniques ; *Nucleic Acid Hybridization ; Phosphoglycerate Kinase/genetics ; Polymerase Chain Reaction/*methods ; Promoter Regions, Genetic ; X Chromosome
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    Function of a bacterial activator protein that binds to transcriptional enhancers (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-02-03
    Description: The nitrogen regulatory (NtrC) protein of enteric bacteria, which binds to sites that have the properties of transcriptional enhancers, is known to activate transcription by a form of RNA polymerase that contains the NtrA protein (sigma 54) as sigma factor (referred to as sigma 54-holoenzyme). In the presence of adenosine triphosphate, the NtrC protein catalyzes isomerization of closed recognition complexes between sigma 54-holoenzyme and the glnA promoter to open complexes in which DNA in the region of the transcription start site is locally denatured. NtrC is not required subsequently for maintenance of open complexes or initiation of transcription.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Popham, D L -- Szeto, D -- Keener, J -- Kustu, S -- GM38361/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Feb 3;243(4891):629-35.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, University of California, Berkley 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2563595" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/analogs & derivatives/metabolism/pharmacology ; *Bacterial Proteins ; Base Sequence ; Binding Sites ; DNA, Bacterial/metabolism ; DNA-Binding Proteins/*metabolism ; DNA-Directed RNA Polymerases/metabolism ; Deoxyribonuclease I ; *Enhancer Elements, Genetic ; Glutamate-Ammonia Ligase/genetics ; Heparin/pharmacology ; Molecular Sequence Data ; Mutation ; PII Nitrogen Regulatory Proteins ; Phosphorylation ; Promoter Regions, Genetic ; Salmonella typhimurium/*genetics ; Sigma Factor/metabolism ; *Trans-Activators ; Transcription Factors ; *Transcription, Genetic
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    Identification of a zinc finger protein that binds to the sterol regulatory element (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-11
    Description: Cholesterol balance in mammalian cells is maintained in part by sterol-mediated repression of gene transcription for the low density lipoprotein receptor and enzymes in the cholesterol biosynthetic pathway. A promoter sequence termed the sterol regulatory element (SRE) is essential for this repression. With the use of an oligonucleotide containing the SRE to screen a human hepatoma complementary DNA expression library, a clone for a DNA binding protein was isolated that binds to the conserved SRE octanucleotide in both a sequence-specific and a single-strand--specific manner. This protein contains seven highly conserved zinc finger repeats that exhibit striking sequence similarity to retroviral nucleic acid binding proteins (NBPs). We have designated the protein "cellular NBP" (CNBP). CNBP is expressed in a wide variety of tissues, is up regulated by sterols, and exhibits binding specificity that correlates with in vivo function. These properties are consistent with a role in sterol-mediated control of transcription.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rajavashisth, T B -- Taylor, A K -- Andalibi, A -- Svenson, K L -- Lusis, A J -- HL30568/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1989 Aug 11;245(4918):640-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, Los Angeles 90024.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2562787" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Binding Sites ; Carcinoma, Hepatocellular/metabolism ; Cholesterol/biosynthesis ; DNA/*metabolism ; DNA Probes ; DNA-Binding Proteins/genetics/*metabolism ; Gene Expression Regulation/*drug effects ; Humans ; Hydroxymethylglutaryl CoA Reductases/genetics ; Liver Neoplasms/metabolism ; Metalloproteins/genetics/*metabolism ; Molecular Sequence Data ; Promoter Regions, Genetic ; *RNA-Binding Proteins ; Receptors, LDL/genetics ; *Regulatory Sequences, Nucleic Acid ; Sequence Homology, Nucleic Acid ; Sterols/*pharmacology ; Tumor Cells, Cultured
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    elk, tissue-specific ets-related genes on chromosomes X and 14 near translocation breakpoints (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-07
    Description: The myb-ets-containing acute leukemia virus, E26, transforms myeloblasts and erythroblasts in culture and causes a mixed erythroid and myeloid leukemia in chicks. Genes (ets-1, ets-2, and erg) with variable relatedness to the v-ets oncogene of the E26 virus have been identified, cloned, and characterized in several species. Two new members (elk-1 and elk-2) of the ets oncogene superfamily have now been identified. Nucleotide sequence analysis of the elk-1 cDNA clone revealed that this gene encodes a 428-residue protein whose predicted amino acid sequence showed 82% similarity to the 3' region of v-ets. The elk or related sequences appear to be transcriptionally active in testis and lung. The elk cDNA probe detects two loci in the human genome, elk-1 and elk-2, which map to chromosome regions Xp11.2 and 14q32.3, respectively. These loci are near the translocation breakpoint seen in the t(X;18) (p11.2;q11.2), which is characteristic of synovial sarcoma, and the chromosome 14q32 breakpoints seen in ataxia telangiectasia and other T cell malignancies. This suggests the possibility that rearrangements of elk loci may be involved in pathogenesis of certain tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rao, V N -- Huebner, K -- Isobe, M -- ar-Rushdi, A -- Croce, C M -- Reddy, E S -- CA-21124/CA/NCI NIH HHS/ -- CA-25875/CA/NCI NIH HHS/ -- CA-39860/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Apr 7;244(4900):66-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wistar Institute of Anatomy and Biology, Philadelphia, PA 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2539641" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Avian Leukosis Virus/*genetics ; Base Sequence ; Chick Embryo ; Chickens ; Chromosome Mapping ; Cloning, Molecular ; DNA Probes ; *DNA-Binding Proteins ; Humans ; Mice ; Molecular Sequence Data ; *Oncogenes ; *Proto-Oncogene Proteins ; Rats ; Retroviridae Proteins/*genetics/isolation & purification ; *Transcription Factors ; *Translocation, Genetic ; *X Chromosome ; ets-Domain Protein Elk-1
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    Amplification and molecular cloning of HTLV-I sequences from DNA of multiple sclerosis patients (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-27
    Description: Techniques of gene amplification, molecular cloning, and sequence analysis were used to test for the presence of sequences related to human T-lymphotropic virus type I (HTLV-I) in peripheral blood mononuclear cells of six patients with multiple sclerosis (MS) and 20 normal individuals. HTLV-I sequences were detected in all six MS patients and in one individual from the control group by DNA blot analysis and molecular cloning of amplified DNAs. The viral sequence in MS patients were associated with adherent cell populations consisting predominantly of monocytes and macrophages. Molecular cloning and nucleotide sequence analysis indicated that these amplified viral sequences were related to the HTLV-I proviral genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reddy, E P -- Sandberg-Wollheim, M -- Mettus, R V -- Ray, P E -- DeFreitas, E -- Koprowski, H -- CA-10815/CA/NCI NIH HHS/ -- NS-11036/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jan 27;243(4890):529-33.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wistar Institute of Anatomy and Biology, Philadelphia, PA 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2536193" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Base Sequence ; Child ; *Cloning, Molecular ; DNA Restriction Enzymes ; DNA, Viral/*genetics ; Female ; *Gene Amplification ; Human T-lymphotropic virus 1/*genetics ; Humans ; Leukocytes, Mononuclear/analysis/microbiology ; Macrophages/analysis/microbiology ; Male ; Molecular Sequence Data ; Multiple Sclerosis/*microbiology ; Nucleic Acid Hybridization ; Oligonucleotide Probes
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  • 44
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    Amplification and Molecular Cloning of HTLV-I Sequences from DNA of Multiple Sclerosis Patients. Correction (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-10-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reddy, E P -- New York, N.Y. -- Science. 1989 Oct 6;246(4926):10-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2781296" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; DNA, Single-Stranded/genetics ; Gene Amplification ; Human T-lymphotropic virus 1/*genetics ; Humans ; Multiple Sclerosis/*genetics
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  • 45
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    Identification of the cystic fibrosis gene: cloning and characterization of complementary DNA (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-08
    Description: Overlapping complementary DNA clones were isolated from epithelial cell libraries with a genomic DNA segment containing a portion of the putative cystic fibrosis (CF) locus, which is on chromosome 7. Transcripts, approximately 6500 nucleotides in size, were detectable in the tissues affected in patients with CF. The predicted protein consists of two similar motifs, each with (i) a domain having properties consistent with membrane association and (ii) a domain believed to be involved in ATP (adenosine triphosphate) binding. A deletion of three base pairs that results in the omission of a phenylalanine residue at the center of the first predicted nucleotide-binding domain was detected in CF patients.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Riordan, J R -- Rommens, J M -- Kerem, B -- Alon, N -- Rozmahel, R -- Grzelczak, Z -- Zielenski, J -- Lok, S -- Plavsic, N -- Chou, J L -- DK34944/DK/NIDDK NIH HHS/ -- DK39690/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 8;245(4922):1066-73.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Hospital for Sick Children, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2475911" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Biological Transport ; Cloning, Molecular/methods ; Cystic Fibrosis/*genetics/metabolism/pathology ; Cystic Fibrosis Transmembrane Conductance Regulator ; DNA/*isolation & purification ; *Genes ; *Genes, Recessive ; Humans ; Ion Channels/pathology ; Membrane Proteins/*genetics/isolation & purification ; Molecular Sequence Data ; Peptides/*genetics/isolation & purification ; Sequence Homology, Nucleic Acid ; Transcription, Genetic
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    Watson versus Japan (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-11-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1989 Nov 3;246(4930):576, 578.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814484" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Costs and Cost Analysis ; DNA/*genetics ; Human Genome Project/*economics ; Humans ; *Information Systems ; *Internationality ; Japan ; United States
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  • 47
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    Circumsporozoite protein heterogeneity in the human malaria parasite Plasmodium vivax (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-01
    Description: Phenotypic heterogeneity in the repetitive portion of a human malaria circumsporozoite (CS) protein, a major target of candidate vaccines, has been found. Over 14% of clinical cases of uncomplicated Plasmodium vivax malaria at two sites in western Thailand produced sporozoites immunologically distinct from previously characterized examples of the species. Monoclonal antibodies to the CS protein of other P. vivax isolates and to other species of human and simian malarias did not bind to these nonreactive sporozoites, nor did antibodies from monkeys immunized with a candidate vaccine made from the repeat portion of a New World CS protein. The section of the CS protein gene between the conserved regions I and II of a nonreactive isolate contained a nonapeptide repeat, Ala-Asn-Gly-Ala-Gly-Asn-Gln-Pro-Gly, identical at only three amino acid positions with published nonapeptide sequences. This heterogeneity implies that a P. vivax vaccine based on the CS protein repeat of one isolate will not be universally protective.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosenberg, R -- Wirtz, R A -- Lanar, D E -- Sattabongkot, J -- Hall, T -- Waters, A P -- Prasittisuk, C -- New York, N.Y. -- Science. 1989 Sep 1;245(4921):973-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2672336" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, Surface/*genetics ; Base Sequence ; Gene Amplification ; *Genes ; Humans ; Malaria/parasitology ; Molecular Sequence Data ; Phenotype ; Plasmodium vivax/*genetics/growth & development ; *Protozoan Proteins ; Repetitive Sequences, Nucleic Acid ; Sequence Homology, Nucleic Acid
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  • 48
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    Identification of the cystic fibrosis gene: chromosome walking and jumping (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-08
    Description: An understanding of the basic defect in the inherited disorder cystic fibrosis requires cloning of the cystic fibrosis gene and definition of its protein product. In the absence of direct functional information, chromosomal map position is a guide for locating the gene. Chromosome walking and jumping and complementary DNA hybridization were used to isolate DNA sequences, encompassing more than 500,000 base pairs, from the cystic fibrosis region on the long arm of human chromosome 7. Several transcribed sequences and conserved segments were identified in this cloned region. One of these corresponds to the cystic fibrosis gene and spans approximately 250,000 base pairs of genomic DNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rommens, J M -- Iannuzzi, M C -- Kerem, B -- Drumm, M L -- Melmer, G -- Dean, M -- Rozmahel, R -- Cole, J L -- Kennedy, D -- Hidaka, N -- DK34944/DK/NIDDK NIH HHS/ -- DK39690/DK/NIDDK NIH HHS/ -- N01-CO-74102/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 8;245(4922):1059-65.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Hospital for Sick Children, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772657" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cattle ; Chickens ; *Chromosome Mapping ; *Chromosomes, Human, Pair 7 ; Cloning, Molecular/methods ; Cricetinae ; Cystic Fibrosis/*genetics ; DNA Probes ; Genes, Overlapping ; *Genes, Recessive ; Genetic Markers ; Humans ; Mice ; Nucleic Acid Hybridization ; Restriction Mapping/methods
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  • 49
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    Structure of E. coli glutaminyl-tRNA synthetase complexed with tRNA(Gln) and ATP at 2.8 A resolution (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-01
    Description: The crystal structure of Escherichia coli glutaminyl-tRNA synthetase (GlnRS) complexed with its cognate glutaminyl transfer RNA (tRNA(Gln] and adenosine triphosphate (ATP) has been derived from a 2.8 angstrom resolution electron density map and the known protein and tRNA sequences. The 63.4-kilodalton monomeric enzyme consists of four domains arranged to give an elongated molecule with an axial ratio greater than 3 to 1. Its interactions with the tRNA extend from the anticodon to the acceptor stem along the entire inside of the L of the tRNA. The complexed tRNA retains the overall conformation of the yeast phenylalanine tRNA (tRNA(Phe] with two major differences: the 3' acceptor strand of tRNA(Gln) makes a hairpin turn toward the inside of the L, with the disruption of the final base pair of the acceptor stem, and the anticodon loop adopts a conformation not seen in any of the previously determined tRNA structures. Specific recognition elements identified so far include (i) enzyme contacts with the 2-amino groups of guanine via the tRNA minor groove in the acceptor stem at G2 and G3; (ii) interactions between the enzyme and the anticodon nucleotides; and (iii) the ability of the nucleotides G73 and U1.A72 of the cognate tRNA to assume a conformation stabilized by the protein at a lower free energy cost than noncognate sequences. The central domain of this synthetase binds ATP, glutamine, and the acceptor end of the tRNA as well as making specific interactions with the acceptor stem.2+t is〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rould, M A -- Perona, J J -- Soll, D -- Steitz, T A -- New York, N.Y. -- Science. 1989 Dec 1;246(4934):1135-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06511.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2479982" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/*metabolism ; Amino Acyl-tRNA Synthetases/genetics/*metabolism ; Anticodon ; Base Composition ; Base Sequence ; Binding Sites ; Biological Evolution ; Chemistry, Physical ; Crystallization ; Escherichia coli/*enzymology/genetics ; Molecular Sequence Data ; Molecular Structure ; Nucleic Acid Conformation ; Physicochemical Phenomena ; RNA, Bacterial/*metabolism ; RNA, Fungal ; RNA, Transfer, Amino Acid-Specific/*metabolism ; RNA, Transfer, Gln/*metabolism ; X-Ray Diffraction
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  • 50
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    Nucleotides in yeast tRNAPhe required for the specific recognition by its cognate synthetase (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-03-10
    Description: An analysis of the aminoacylation kinetics of unmodified yeast tRNAPhe mutants revealed that five single-stranded nucleotides are important for its recognition by yeast phenylalanyl-tRNA synthetase, provided they were positioned correctly in a properly folded tRNA structure. When four other tRNAs were changed to have these five nucleotides, they became near-normal substrates for the enzyme.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sampson, J R -- DiRenzo, A B -- Behlen, L S -- Uhlenbeck, O C -- GM 37552/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Mar 10;243(4896):1363-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of Colorado, Boulder 80309.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2646717" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acyl-tRNA Synthetases/*metabolism ; Base Sequence ; Escherichia coli/genetics ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Nucleic Acid Conformation ; Phenylalanine-tRNA Ligase/*metabolism ; Plants/genetics ; RNA, Transfer, Amino Acid-Specific/*genetics ; RNA, Transfer, Phe/*genetics/metabolism ; Schizosaccharomyces/genetics ; Transcription, Genetic ; Triticum/genetics
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  • 51
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    The product of the mos proto-oncogene as a candidate "initiator" for oocyte maturation (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-08-11
    Description: The endogenous c-mos product, pp39mos, is required for progesterone-induced meiotic maturation in Xenopus oocytes. Treatment of oocytes with progesterone induced a rapid increase in pp39mos that preceded both the activation of maturation promoting factor (MPF) and germinal vesicle breakdown (GVBD). Microinjection of synthetic mos RNA into oocytes activated MPF and induced GVBD in the absence of progesterone. Thus, the mos proto-oncogene product may qualify as a candidate "initiator" protein of MPF and is at least one of the "triggers" for G2 to M transition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sagata, N -- Daar, I -- Oskarsson, M -- Showalter, S D -- Vande Woude, G F -- N01-CO-74101/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Aug 11;245(4918):643-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉BRI-Basic Research Program, National Cancer Institute, Frederick Cancer Research Facility, MD 21701.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2474853" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cycloheximide/pharmacology ; Female ; Growth Substances/physiology ; Kinetics ; Maturation-Promoting Factor ; Meiosis/drug effects ; Microinjections ; Oocytes/*physiology ; Progesterone/pharmacology ; Protein Biosynthesis ; Proto-Oncogene Proteins/genetics/*physiology ; Proto-Oncogene Proteins c-mos ; RNA/genetics ; Transcription, Genetic ; Transfection ; Xenopus
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    RNA-protein interactions in 30S ribosomal subunits: folding and function of 16S rRNA (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-05-19
    Description: Chemical probing methods have been used to "footprint" 16S ribosomal RNA (rRNA) at each step during the in vitro assembly of twenty 30S subunit ribosomal proteins. These experiments yield information about the location of each protein relative to the structure of 16S rRNA and provide the basis for derivation of a detailed model for the three-dimensional folding of 16S rRNA. Several lines of evidence suggest that protein-dependent conformational changes in 16S rRNA play an important part in the cooperativity of ribosome assembly and in fine-tuning of the conformation and dynamics of 16S rRNA in the 30S subunit.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stern, S -- Powers, T -- Changchien, L M -- Noller, H F -- GM-17129/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 May 19;244(4906):783-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Thimann Laboratories, University of California, Santa Cruz 95064.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2658053" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Escherichia coli ; Models, Molecular ; Molecular Sequence Data ; Molecular Structure ; Nucleic Acid Conformation ; RNA, Ribosomal/*metabolism ; RNA, Ribosomal, 16S/*metabolism ; Ribosomal Proteins/*metabolism ; Ribosomes/physiology
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    Synapsins: mosaics of shared and individual domains in a family of synaptic vesicle phosphoproteins (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-09-29
    Description: Synapsins are neuronal phosphoproteins that coat synaptic vesicles, bind to the cytoskeleton, and are believed to function in the regulation of neurotransmitter release. Molecular cloning reveals that the synapsins comprise a family of four homologous proteins whose messenger RNA's are generated by differential splicing of transcripts from two genes. Each synapsin is a mosaic composed of homologous amino-terminal domains common to all synapsins and different combinations of distinct carboxyl-terminal domains. Immunocytochemical studies demonstrate that all four synapsins are widely distributed in nerve terminals, but that their relative amounts vary among different kinds of synapses. The structural diversity and differential distribution of the four synapsins suggest common and different roles of each in the integration of distinct signal transduction pathways that modulate neurotransmitter release in various types of neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sudhof, T C -- Czernik, A J -- Kao, H T -- Takei, K -- Johnston, P A -- Horiuchi, A -- Kanazir, S D -- Wagner, M A -- Perin, M S -- De Camilli, P -- AA 06944/AA/NIAAA NIH HHS/ -- MH 39327/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 29;245(4925):1474-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Dallas, TX.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2506642" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Molecular Sequence Data ; Nerve Tissue Proteins/*genetics ; Neuropeptides/*genetics ; Phosphoproteins/*genetics ; Sequence Homology, Nucleic Acid ; Structure-Activity Relationship ; Synapsins ; Synaptic Vesicles/*physiology
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    The RNA processing enzyme RNase MRP is identical to the Th RNP and related to RNase P (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-22
    Description: Sera from patients with autoimmune diseases often contain antibodies that bind ribonucleoproteins (RNPs). Sera from 30 such patients were found to immunoprecipitate ribonuclease P (RNase P), an RNP enzyme required to process the 5' termini of transfer RNA transcripts in nuclei and mitochondria of eukaryotic cells. All 30 sera also immunoprecipitated the nucleolar Th RNP, indicating that the two RNPs are structurally related. Nucleotide sequence analysis of the Th RNP revealed it was identical to the RNA component of the mitochondrial RNA processing enzyme known as RNase MRP. Antibodies that immunoprecipitated the Th RNP selectively depleted murine and human cell extracts of RNase MRP activity, indicating that the Th and RNase MRP RNPs are identical. Since RNase P and RNase MRP are not associated with each other during biochemical purification, we suggest that these two RNA processing enzymes share a common autoantigenic polypeptide.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gold, H A -- Topper, J N -- Clayton, D A -- Craft, J -- AI 26853/AI/NIAID NIH HHS/ -- GM 33088-19/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 22;245(4924):1377-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Yale University School of Medicine, New Haven, CT 06511.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2476849" target="_blank"〉PubMed〈/a〉
    Keywords: *Autoantigens ; Base Sequence ; Cell Nucleus/enzymology ; *Endoribonucleases/analysis/immunology ; Humans ; Mitochondria/enzymology ; Molecular Sequence Data ; RNA/analysis ; *RNA Processing, Post-Transcriptional ; Ribonuclease P ; *Ribonucleoproteins
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    Specific interactions in RNA enzyme-substrate complexes (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-22
    Description: Analysis of crosslinked complexes of M1 RNA, the catalytic RNA subunit of ribonuclease P from Escherichia coli, and transfer RNA precursor substrates has led to the identification of regions in the enzyme and in the substrate that are in close physical proximity to each other. The nucleotide in M1 RNA, residue C92, which participates in a crosslink with the substrate was deleted and the resulting mutant M1 RNA was shown to cleave substrates lacking the 3' terminal CCAUCA sequence at sites several nucleotides away from the normal site of cleavage. The presence or absence of the 3' terminal CCAUCA sequence in transfer RNA precursor substrates markedly affects the way in which these substrates interact with the catalytic RNA in the enzyme-substrate complex. The contacts between wild-type M1 RNA and its substrate are in a region that resembles part of the transfer RNA "E" (exit) site in 23S ribosomal RNA. These data demonstrate that in RNA's with very different cellular functions, there are domains with similar structural and functional properties and that there is a nucleotide in M1 RNA that affects the site of cleavage by the enzyme.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guerrier-Takada, C -- Lumelsky, N -- Altman, S -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1578-84.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Yale University, New Haven, CT 06520.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2480641" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Endoribonucleases/genetics/*metabolism ; Escherichia coli/enzymology/*genetics ; *Escherichia coli Proteins ; Kinetics ; Molecular Sequence Data ; Nucleic Acid Conformation ; RNA Precursors/genetics ; RNA, Bacterial/*genetics/metabolism ; RNA, Transfer/genetics ; Ribonuclease P ; Substrate Specificity
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    Interleukin-2 receptor beta chain gene: generation of three receptor forms by cloned human alpha and beta chain cDNA's (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-05
    Description: Interleukin-2 (IL-2) binds to two distinct receptor molecules, the IL-2 receptor alpha (IL-2R alpha, p55) chain and the newly identified IL-2 receptor beta (IL-2R beta, p70-75) chain. The cDNA encoding the human IL-2R beta chain has now been isolated. The overall primary structure of the IL-2R beta chain shows no apparent homology to other known receptors. Unlike the IL-2R alpha chain, the IL-2R beta chain has a large cytoplasmic region in which a functional domain (or domains) mediating an intracellular signal transduction pathway (or pathways) may be embodied. The cDNA-encoded beta chain binds and internalizes IL-2 when expressed on T lymphoid cells but not fibroblast cells. Furthermore, the cDNA gives rise to the generation of high-affinity IL-2 receptor when co-expressed with the IL-2R alpha chain cDNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hatakeyama, M -- Tsudo, M -- Minamoto, S -- Kono, T -- Doi, T -- Miyata, T -- Miyasaka, M -- Taniguchi, T -- New York, N.Y. -- Science. 1989 May 5;244(4904):551-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Molecular and Cellular Biology, Osaka University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2785715" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; *Cloning, Molecular ; Cross-Linking Reagents ; DNA/*genetics/isolation & purification ; Fibroblasts/metabolism ; Gene Expression Regulation ; Humans ; Interleukin-2/metabolism ; Leukemia ; Molecular Sequence Data ; Nucleic Acid Hybridization ; RNA, Messenger/genetics ; Receptors, Interleukin-2/*genetics/metabolism ; Recombinant Proteins ; Sequence Homology, Nucleic Acid ; Signal Transduction ; Succinimides ; T-Lymphocytes/metabolism ; Transfection ; Tumor Cells, Cultured
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Identification of a thyroid hormone receptor that is pituitary-specific (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-07
    Description: Three cellular homologs of the v-erbA oncogene were previously identified in the rat; two of them encode high affinity receptors for the thyroid hormone triiodothyronine (T3). A rat complementary DNA clone encoding a T3 receptor form of the ErbA protein, called r-ErbA beta-2, was isolated. The r-ErbA beta-2 protein differs at its amino terminus from the previously described rat protein encoded by c-erbA beta and referred to as r-ErbA beta-1. Unlike the other members of the c-erbA proto-oncogene family, which have a wide tissue distribution, r-erbA beta-2 appears to be expressed only in the anterior pituitary gland. In addition, thyroid hormone downregulates r-erbA beta-2 messenger RNA but not r-erbA beta-1 messenger RNA in a pituitary tumor-derived cell line. The presence of a pituitary-specific form of the thyroid hormone receptor that may be selectively regulated by thyroid hormone could be important for the differential regulation of gene expression by T3 in the pituitary gland.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hodin, R A -- Lazar, M A -- Wintman, B I -- Darling, D S -- Koenig, R J -- Larsen, P R -- Moore, D D -- Chin, W W -- New York, N.Y. -- Science. 1989 Apr 7;244(4900):76-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Brigham and Women's Hospital, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2539642" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Cloning, Molecular ; DNA/isolation & purification ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Organ Specificity ; Pituitary Gland, Anterior/*metabolism ; Proto-Oncogene Proteins/genetics/*isolation & purification ; Rats ; Receptors, Thyroid Hormone/genetics/*isolation & purification ; Transfection
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    Structure and specificity of a class II MHC alloreactive gamma delta T cell receptor heterodimer (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-18
    Description: Two distinct CD3-associated T cell receptors (TCR alpha beta and TCR gamma delta) are expressed in a mutually exclusive fashion on separate subsets of T lymphocytes. While the specificity of the TCR alpha beta repertoire for major histocompatibility complex (MHC) antigens is well established, the diversity of expressed gamma delta receptors and the ligands they recognize are less well understood. An alloreactive CD3+CD4-CD8- T cell line specific for murine class II MHC (Ia) antigens encoded in the I-E subregion of the H-2 gene complex was identified, and the primary structure of its gamma delta receptor heterodimer was characterized. In contrast to a TCR alpha beta-expressing alloreactive T cell line selected for similar specificity, the TCR gamma delta line displayed broad cross-reactivity for multiple distinct I-E-encoded allogeneic Ia molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Matis, L A -- Fry, A M -- Cron, R Q -- Cotterman, M M -- Dick, R F -- Bluestone, J A -- 5-T32AI07090-10/AI/NIAID NIH HHS/ -- CA-14599-15/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Aug 18;245(4919):746-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biochemistry and Biophysics, Food and Drug Administration, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2528206" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal ; Antigens, CD3 ; Antigens, Differentiation, T-Lymphocyte/analysis/immunology ; Base Sequence ; Cell Line ; Cloning, Molecular ; Cytotoxicity, Immunologic ; H-2 Antigens/genetics/immunology ; Histocompatibility Antigens Class II/genetics/*immunology ; Hybridomas/immunology ; Immunosorbent Techniques ; Macromolecular Substances ; Mice ; Mice, Nude ; Molecular Sequence Data ; Receptors, Antigen, T-Cell/analysis/genetics/*immunology ; T-Lymphocytes/*immunology
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    Stereochemistry of RNA cleavage by the Tetrahymena ribozyme and evidence that the chemical step is not rate-limiting (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-12
    Description: The intervening sequence of the ribosomal RNA precursor of Tetrahymena is a catalytic RNA molecule, or ribozyme. Acting as a sequence-specific endoribonuclease, it cleaves single-stranded RNA substrates with concomitant addition of guanosine. The chemistry of the reaction has now been studied by introduction of a single phosphorothioate in the substrate RNA at the cleavage site. Kinetic studies show no significant effect of this substitution on kcat (rate constant) or Km (Michaelis constant), providing evidence that some step other than the chemical step is rate-limiting. Product analysis reveals that the reaction proceeds with inversion of configuration at phosphorus, consistent with an in-line, SN2 (P) mechanism. Thus, the ribozyme reaction is in the same mechanistic category as the individual displacement reactions catalyzed by protein nucleotidyltransferases, phosphotransferases, and nucleases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McSwiggen, J A -- Cech, T R -- GM28039/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 May 12;244(4905):679-83.〈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/2470150" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Guanosine/metabolism ; Hydrolysis ; Kinetics ; Molecular Conformation ; Phosphates/metabolism ; Phosphorus ; RNA/*metabolism ; RNA Precursors/*metabolism ; RNA Splicing ; RNA, Catalytic ; RNA, Ribosomal/*metabolism ; Tetrahymena/*genetics ; Thionucleotides/metabolism
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    Lutropin-choriogonadotropin receptor: an unusual member of the G protein-coupled receptor family (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-04
    Description: A complementary DNA (cDNA) for the rat luteal lutropin-choriogonadotropin receptor (LH-CG-R) was isolated with the use of a DNA probe generated in a polymerase chain reaction with oligonucleotide primers based on peptide sequences of purified receptor protein. As would be predicted from the cDNA sequence, the LH-CG-R consists of a 26-residue signal peptide, a 341-residue extracellular domain displaying an internal repeat structure characteristic of members of the leucine-rich glycoprotein (LRG) family, and a 333-residue region containing seven transmembrane segments. This membrane-spanning region displays sequence similarity with all members of the G protein-coupled receptor family. Hence, the LH-CG-R gene may have evolved by recombination of LRG and G protein-coupled receptor genes. Cells engineered to express LH-CG-R cDNA bind human choriogonadotropin with high affinity and show an increase in cyclic adenosine monophosphate when exposed to hormone. As revealed by RNA blot analysis and in situ hybridization, the 4.4-kilobase cognate messenger RNA is prominently localized in the rat ovary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McFarland, K C -- Sprengel, R -- Phillips, H S -- Kohler, M -- Rosemblit, N -- Nikolics, K -- Segaloff, D L -- Seeburg, P H -- HD22196/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 Aug 4;245(4917):494-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Biology, Genetech, Inc., South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2502842" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; DNA/genetics/isolation & purification ; DNA Probes ; Female ; GTP-Binding Proteins/*physiology ; Glycoproteins/genetics ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Ovary/analysis ; RNA, Messenger/analysis/genetics ; Rats ; Receptors, LH/*genetics ; Sequence Homology, Nucleic Acid ; Tissue Distribution
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    Transcriptional regulation in mammalian cells by sequence-specific DNA binding proteins (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-28
    Description: The cloning of genes encoding mammalian DNA binding transcription factors for RNA polymerase II has provided the opportunity to analyze the structure and function of these proteins. This review summarizes recent studies that define structural domains for DNA binding and transcriptional activation functions in sequence-specific transcription factors. The mechanisms by which these factors may activate transcriptional initiation and by which they may be regulated to achieve differential gene expression are also discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mitchell, P J -- Tjian, R -- New York, N.Y. -- Science. 1989 Jul 28;245(4916):371-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Biochemistry, University of California, Berkeley 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2667136" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; Cloning, Molecular ; DNA-Binding Proteins/*genetics/metabolism ; Gene Expression Regulation ; Molecular Sequence Data ; Protein Processing, Post-Translational ; RNA Polymerase II/*genetics/metabolism ; Repetitive Sequences, Nucleic Acid ; Transcription Factors/*genetics/metabolism ; *Transcription, Genetic
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    Vaccination with a synthetic zona pellucida peptide produces long-term contraception in female mice (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-17
    Description: The zona pellucida surrounding mouse oocytes is an extracellular matrix composed of three sulfated glycoproteins, ZP1, ZP2, and ZP3. It has been demonstrated that a monoclonal antibody to ZP3 injected into female mice inhibits fertilization by binding to the zona pellucida and blocking sperm penetration. A complementary DNA encoding ZP3 was randomly cleaved and 200- to 1000-base pair fragments were cloned into the expression vector lambda gt11. This epitope library was screened with the aforementioned contraceptive antibody, and the positive clones were used to map the seven-amino acid epitope recognized by the antibody. Female mice were immunized with a synthetic peptide containing this B cell epitope coupled to a carrier protein to provide helper T cell epitopes. The resultant circulating antibodies to ZP3 bound to the zona pellucida of immunized animals and produced long-lasting contraception. The lack of ovarian histopathology or cellular cytotoxicity among the immunized animals may be because of the absence of zona pellucida T cell epitopes in this vaccine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Millar, S E -- Chamow, S M -- Baur, A W -- Oliver, C -- Robey, F -- Dean, J -- New York, N.Y. -- Science. 1989 Nov 17;246(4932):935-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cellular and Developmental Biology, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2479101" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens/immunology ; Base Sequence ; Cloning, Molecular ; *Contraception ; *Contraception, Immunologic ; DNA/genetics ; *Egg Proteins ; Epitopes/analysis ; Female ; Glycoproteins/genetics/*immunology ; Male ; *Membrane Glycoproteins ; Mice ; Molecular Sequence Data ; Ovum/*physiology ; Protein Conformation ; RNA, Messenger/genetics ; *Receptors, Cell Surface ; *Vaccination ; Zona Pellucida/*physiology
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    Neural cadherin: role in selective cell-cell adhesion (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-11
    Description: Cadherins are a family of Ca2+-dependent intercellular adhesion molecules. Complementary DNAs encoding mouse neural cadherin (N-cadherin) were cloned, and the cell binding specificity of this molecule was examined. Mouse N-cadherin shows 92 percent similarity in amino acid sequence to the chicken homolog, while it shows 49 percent and 43 percent similarity to epithelial cadherin and to placental cadherin of the same species, respectively. In cell binding assays, mouse N-cadherin did not cross-react with other mouse cadherins, but it did cross-react with chicken N-cadherin. The results indicate that each cadherin type confers distinct adhesive specificities on different cells, and also that the specificity of N-cadherin is conserved between mammalian and avian cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miyatani, S -- Shimamura, K -- Hatta, M -- Nagafuchi, A -- Nose, A -- Matsunaga, M -- Hatta, K -- Takeichi, M -- New York, N.Y. -- Science. 1989 Aug 11;245(4918):631-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biophysics, Faculty of Science, Kyoto University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2762814" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal ; Antigens, Surface/genetics/*physiology ; Base Sequence ; Brain Chemistry ; *Cell Adhesion ; Cell Adhesion Molecules ; Chickens ; Cloning, Molecular ; DNA/genetics ; Embryo, Mammalian ; Embryo, Nonmammalian ; L Cells (Cell Line) ; Mice ; Molecular Sequence Data ; Nerve Tissue/*analysis ; Nucleic Acid Hybridization ; Tissue Distribution ; Transfection
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    1,25-dihydroxyvitamin D-responsive element and glucocorticoid repression in the osteocalcin gene (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-01
    Description: The active hormonal form of vitamin D3, 1,25-dihydroxyvitamin D3[1,25(OH), which regulates cellular replication and function in many tissues and has a role in bone and calcium homeostasis, acts through a hormone receptor homologous with other steroid and thyroid hormone receptors. A 1,25(OH)2D3-responsive element (VDRE), which is within the promoter for osteocalcin [a bone protein induced by 1,25(OH)2D3] is unresponsive to other steroid hormones, can function in a heterologous promoter, and contains a doubly palindromic DNA sequence (TTGGTGACTCACCGGGTGAAC; -513 to -493 bp), with nucleotide sequence homology to other hormone responsive elements. The potent glucocorticoid repression of 1,25(OH)2D3 induction and of basal activity of this promoter acts through a region between -196 and +34 bp, distinct from the VDRE.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morrison, N A -- Shine, J -- Fragonas, J C -- Verkest, V -- McMenemy, M L -- Eisman, J A -- New York, N.Y. -- Science. 1989 Dec 1;246(4934):1158-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Garvan Institute of Medical Research, St. Vincents Hospital, Sydney, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2588000" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Calcitriol/*pharmacology ; Chloramphenicol O-Acetyltransferase/genetics ; DNA/*genetics ; Dexamethasone/pharmacology ; Gene Expression/*drug effects ; Glucocorticoids/*pharmacology ; Humans ; Molecular Sequence Data ; Osteocalcin/*genetics ; Promoter Regions, Genetic/*genetics ; Rats ; Restriction Mapping ; Sequence Homology, Nucleic Acid ; Transfection ; Tumor Cells, Cultured
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    In vivo footprinting of a muscle specific enhancer by ligation mediated PCR (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: In vivo protein-DNA interactions at the developmentally regulated enhancer of the mouse muscle creatine kinase (MCK) gene were examined by a newly developed polymerase chain reaction (PCR) footprinting procedure. This ligation mediated, single-sided PCR technique permits the exponential amplification of an entire sequence ladder. Several footprints were detected in terminally differentiated muscle cells where the MCK gene is actively transcribed. None were observed in myogenic cells prior to differentiation or in nonmuscle cells. Two footprints appear to correspond to sites that can bind the myogenic regulator MyoD1 in vitro, whereas two others represent muscle specific use of apparently general factors. Because MyoD1 is synthesized by undifferentiated myoblasts, these data imply that additional regulatory mechanisms must restrict the interaction between this protein and its target site prior to differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mueller, P R -- Wold, B -- GM35526/GM/NIGMS NIH HHS/ -- RR07003/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):780-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, California Institute of Technology, Pasadena 91125.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814500" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; Cell Line ; Creatine Kinase/*genetics ; DNA/*analysis/metabolism ; DNA-Binding Proteins/genetics/metabolism ; *Enhancer Elements, Genetic ; *Gene Amplification ; Gene Expression ; Genes, Regulator ; Mice ; Molecular Sequence Data ; Muscles/*enzymology ; *Polymerase Chain Reaction ; Protein Binding ; Protein Processing, Post-Translational ; Templates, Genetic ; Transcription Factor AP-2 ; Transcription Factors/genetics/metabolism
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    Molecular genetics of human blue cone monochromacy (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-25
    Description: Blue cone monochromacy is a rare X-linked disorder of color vision characterized by the absence of both red and green cone sensitivities. In 12 of 12 families carrying this trait, alterations are observed in the red and green visual pigment gene cluster. The alterations fall into two classes. One class arose from the wild type by a two-step pathway consisting of unequal homologous recombination and point mutation. The second class arose by nonhomologous deletion of genomic DNA adjacent to the red and green pigment gene cluster. These deletions define a 579-base pair region that is located 4 kilobases upstream of the red pigment gene and 43 kilobases upstream of the nearest green pigment gene; this 579-base pair region is essential for the activity of both pigment genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nathans, J -- Davenport, C M -- Maumenee, I H -- Lewis, R A -- Hejtmancik, J F -- Litt, M -- Lovrien, E -- Weleber, R -- Bachynski, B -- Zwas, F -- New York, N.Y. -- Science. 1989 Aug 25;245(4920):831-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Genetics, Wilmer Ophthalmologic Institute, 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/2788922" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Base Sequence ; Child ; Child, Preschool ; Chromosome Deletion ; Color Vision Defects/*genetics ; DNA/analysis ; Female ; Humans ; Male ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Retinal Pigments/genetics ; Thalassemia/genetics ; X Chromosome
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The mutations in Ashkenazi Jews with adult GM2 gangliosidosis, the adult form of Tay-Sachs disease (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-17
    Description: The adult form of Tay-Sachs disease, adult GM2 gangliosidosis, is an autosomal recessive disorder that results from mutations in the alpha chain of beta-hexosaminidase A. This disorder, like infantile Tay-Sachs disease, is more frequent in the Ashkenazi Jewish population. A point mutation in the alpha-chain gene was identified that results in the substitution of Gly with Ser in eight Ashkenazi adult GM2 gangliosidosis patients from five different families. This amino acid substitution was shown to depress drastically the catalytic activity of the alpha chain after expression in COS-1 cells. All of these patients proved to be compound heterozygotes of the allele with the Gly to Ser change and one of the two Ashkenazi infantile Tay-Sachs alleles. These findings will aid in the diagnosis and understanding of beta-hexosaminidase A deficiency disorders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Navon, R -- Proia, R L -- New York, N.Y. -- Science. 1989 Mar 17;243(4897):1471-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genetics and Biochemistry Branch, National Institute of Diabetes, Digestive, and Kidney Diseases, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2522679" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cloning, Molecular ; Humans ; Jews ; Pedigree ; RNA, Messenger/genetics ; Structure-Activity Relationship ; Tay-Sachs Disease/*genetics ; beta-N-Acetylhexosaminidases/*genetics
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    Initiation by yeast RNA polymerase II at the adenoviral major late promoter in vitro (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-03
    Description: Transcription of the yeast CYC1 promoter fused to a sequence lacking guanosine residues provided a rapid, sensitive assay of initiation by RNA polymerase II in yeast extracts. Initiation was enhanced by yeast and mammalian activator proteins. The adenoviral major late promoter fused to the G-minus sequence was transcribed in yeast extracts with an efficiency comparable to that observed in HeLa extracts, showing that promoters as well as transcription factors are functionally interchangeable across species. Initiation occurred at different sites, approximately 30 and 63 to 69 base pairs downstream of the TATA element of the adenoviral promoter in HeLa and yeast extracts, respectively, distances characteristic of initiation in the two systems in vivo. A component of the transcription system and not the promoter sequence determines the distance to the initiation site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lue, N F -- Flanagan, P M -- Sugimoto, K -- Kornberg, R D -- GM36659/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 3;246(4930):661-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Beckman Laboratories, Fairchild Center, Stanford School of Medicine, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2510298" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviruses, Human/*genetics ; Base Sequence ; GTP-Binding Proteins/genetics ; *Genes, Fungal ; HeLa Cells/metabolism ; Humans ; Molecular Sequence Data ; Oligonucleotide Probes ; *Promoter Regions, Genetic ; RNA Polymerase II/*metabolism ; Saccharomyces cerevisiae/enzymology/*genetics ; Templates, Genetic ; *Transcription, Genetic
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    Transfer RNA genes: landmarks for integration of mobile genetic elements in Dictyostelium discoideum (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-06-23
    Description: In prokaryotes and eukaryotes mobile genetic elements frequently disrupt the highly conservative structures of chromosomes, which are responsible for storage of genetic information. The factors determining the site for integration of such elements are still unknown. Transfer RNA (tRNA) genes are associated in a highly significant manner with different putative mobile genetic elements in the cellular slime mold Dictyostelium discoideum. These results suggest that tRNA genes in D. discoideum, and probably tRNA genes generally in lower eukaryotes, may function as genomic landmarks for the integration of different transposable elements in a strictly position-specific manner.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marschalek, R -- Brechner, T -- Amon-Bohm, E -- Dingermann, T -- New York, N.Y. -- Science. 1989 Jun 23;244(4911):1493-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Biochemie der Medizinischen Fakultat, Universitat Erlangen-Nurnberg, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2567533" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Chromosome Mapping ; Dictyostelium/*genetics ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Oligonucleotide Probes ; Polymorphism, Restriction Fragment Length ; RNA, Transfer/*genetics ; RNA, Transfer, Glu/genetics ; RNA, Transfer, Lys/genetics ; RNA, Transfer, Val/genetics
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    RNA editing in plant mitochondria (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-12-22
    Description: Comparative sequence analysis of genomic and complementary DNA clones from several mitochondrial genes in the higher plant Oenothera revealed nucleotide sequence divergences between the genomic and the messenger RNA-derived sequences. These sequence alterations could be most easily explained by specific post-transcriptional nucleotide modifications. Most of the nucleotide exchanges in coding regions lead to altered codons in the mRNA that specify amino acids better conserved in evolution than those encoded by the genomic DNA. Several instances show that the genomic arginine codon CGG is edited in the mRNA to the tryptophan codon TGG in amino acid positions that are highly conserved as tryptophan in the homologous proteins of other species. This editing suggests that the standard genetic code is used in plant mitochondria and resolves the frequent coincidence of CGG codons and tryptophan in different plant species. The apparently frequent and non-species-specific equivalency of CGG and TGG codons in particular suggests that RNA editing is a common feature of all higher plant mitochondria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hiesel, R -- Wissinger, B -- Schuster, W -- Brennicke, A -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1632-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Genbiologische Forschung, Berlin, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2480644" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cloning, Molecular ; DNA, Mitochondrial/genetics ; Electron Transport Complex IV/*genetics ; *Genes, Plant ; Humans ; Mitochondria/*enzymology ; Molecular Sequence Data ; Plants/enzymology/*genetics ; RNA/*genetics ; RNA Processing, Post-Transcriptional ; RNA, Messenger/genetics ; Sequence Homology, Nucleic Acid
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    Chromosomal rearrangement generating a composite gene for a developmental transcription factor (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-01-27
    Description: Differential gene expression in the mother cell chamber of sporulating cells of Bacillus subtilis is determined in part by an RNA polymerase sigma factor called sigma K (or sigma 27). The sigma K factor was assigned as the product of the sporulation gene spoIVCB on the basis of the partial aminoterminal amino acid sequence of the purified protein. The spoIVCB gene is now shown to be a truncated gene capable of specifying only the amino terminal half of sigma K. The carboxyl terminal half is specified by another sporulation gene, spoIIIC, to which spoIVCB becomes joined inframe at an intermediate stage of sporulation by site-specific recombination within a 5-base pair repeated sequence. Juxtaposition of spoIVCB and spoIIIC need not be reversible in that the mother cell and its chromosome are discarded at the end of the developmental cycle. The rearrangement of chromosomal DNA could account for the presence of sigma K selectively in the mother cell and may be a precedent for the generation of cell type-specific regulatory proteins in other developmental systems where cells undergo terminal differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stragier, P -- Kunkel, B -- Kroos, L -- Losick, R -- New York, N.Y. -- Science. 1989 Jan 27;243(4890):507-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Developmental Biology, Harvard University, Cambridge, MA 02138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2536191" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacillus subtilis/*genetics/physiology ; Base Sequence ; Cloning, Molecular ; DNA Probes ; DNA Restriction Enzymes ; DNA, Bacterial/genetics ; DNA-Directed RNA Polymerases/metabolism ; *Gene Expression Regulation ; *Gene Rearrangement ; *Genes, Bacterial ; Molecular Sequence Data ; Molecular Weight ; Mutation ; Nucleic Acid Hybridization ; Sigma Factor/genetics ; Spores, Bacterial ; Transcription Factors/*genetics
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    T cell receptor gene trans-rearrangements: chimeric gamma-delta genes in normal lymphoid tissues (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-09-15
    Description: Joining of V-, D-, and J-region gene segments during DNA rearrangements within all antigen receptor genes involves recognition of the same highly conserved heptamernonamer sequences flanking each segment. In order to investigate the possibility that recognition of these conserved sequences may sometimes permit intergenic joining of segments among different antigen receptor genes, DNA of normal human lymphoid tissues was examined by polymerase chain reaction amplification for the presence of chimeric gamma-delta T cell receptor gene rearrangements. These studies detected V gamma-(D delta)-J delta and V delta-(D delta)-J gamma rearrangements in thymus, peripheral blood, and tonsil. Analysis of thymus RNA indicated that many of these rearrangements are expressed as V gamma-(D delta)-J delta-C delta and V delta-(D delta)-J gamma-C gamma transcripts. Most transcripts (19 of 20 complementary DNA clones studied) are appropriately spliced and show correct open translational reading frames across the V-(D)-J junctions. Thus, chimeric antigen receptor genes are generated in a subset of normal lymphoid cells, probably as a result of chromosomal translocations, and such genes may possibly contribute to increased diversity within the antigen receptor repertoire.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tycko, B -- Palmer, J D -- Sklar, J -- CA38621/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 15;245(4923):1242-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2551037" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Blotting, Southern ; Cell Line ; Chimera ; DNA/genetics ; DNA Probes ; Gene Amplification ; *Gene Rearrangement, T-Lymphocyte ; *Gene Rearrangement, gamma-Chain T-Cell Antigen Receptor ; Humans ; *Lymphoid Tissue ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Receptors, Antigen, T-Cell/*genetics ; Sequence Homology, Nucleic Acid ; Thymus Gland
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    Human diabetes associated with a deletion of the tyrosine kinase domain of the insulin receptor (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-07
    Description: The insulin receptor has an intrinsic tyrosine kinase activity that is essential for signal transduction. A mutant insulin receptor gene lacking almost the entire kinase domain has been identified in an individual with type A insulin resistance and acanthosis nigricans. Insulin binding to the erythrocytes or cultured fibroblasts from this individual was normal. However receptor autophosphorylation and tyrosine kinase activity toward an exogenous substrate were reduced in partially purified insulin receptors from the proband's lymphocytes that had been transformed by Epstein-Barr virus. The insulin resistance associated with this mutated gene was inherited by the proband from her mother as an apparently autosomal dominant trait. Thus a deletion in one allele of the insulin receptor gene may be at least partly responsible for some instances of insulin-resistant diabetes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taira, M -- Hashimoto, N -- Shimada, F -- Suzuki, Y -- Kanatsuka, A -- Nakamura, F -- Ebina, Y -- Tatibana, M -- Makino, H -- New York, N.Y. -- Science. 1989 Jul 7;245(4913):63-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Second Department of Internal Medicine, Chiba University School of Medicine, Inohana, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2544997" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Alleles ; Amino Acid Sequence ; Base Sequence ; *Chromosome Deletion ; Diabetes Mellitus, Type 1/enzymology/*genetics ; Female ; *Genes ; Humans ; Insulin Resistance ; Male ; Molecular Sequence Data ; Mutation ; Pedigree ; Protein-Tyrosine Kinases/*genetics ; Receptor, Insulin/*genetics ; Restriction Mapping
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    BAS1 has a Myb motif and activates HIS4 transcription only in combination with BAS2 (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-17
    Description: The BAS1 and BAS2 proteins are both required for activation of GCN4-independent (basal) HIS4 transcription in yeast. BAS1 has an NH2-terminal region similar to those of the myb proto-oncogene family. BAS1 and BAS2, which contains a homeo box, bound to adjacent sites on the HIS4 promoter. The joint requirement of BAS1 and BAS2 for activation is probably not due to cooperative binding or the transcriptional control of one of the genes by the other. Although BAS1 and BAS2 were both required for activation of HIS4 transcription, BAS1 was not required for BAS2-dependent expression of the secreted acid phosphatases. The transcriptional activators of HIS4 have DNA binding domains that are conserved in evolution (BAS1 = Myb, BAS2 = homeo box, GCN4 = Jun). Their interactions, therefore, may be relevant to the control of gene expression in more complex systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tice-Baldwin, K -- Fink, G R -- Arndt, K T -- GM35010/GM/NIGMS NIH HHS/ -- GM39892/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 17;246(4932):931-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, NY 11724.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2683089" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Fungal Proteins/*genetics ; *Gene Expression Regulation ; *Genes, Fungal ; Molecular Sequence Data ; Proto-Oncogene Proteins/*genetics ; Proto-Oncogene Proteins c-myb ; Saccharomyces cerevisiae/*genetics ; *Saccharomyces cerevisiae Proteins ; Sequence Homology, Nucleic Acid ; *Trans-Activators ; *Transcription, Genetic
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    The molecular basis of muscular dystrophy in the mdx mouse: a point mutation (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-06-30
    Description: The mdx mouse is an X-linked myopathic mutant, an animal model for human Duchenne muscular dystrophy. In both mouse and man the mutations lie within the dystrophin gene, but the phenotypic differences of the disease in the two species confer much interest on the molecular basis of the mdx mutation. The complementary DNA for mouse dystrophin has been cloned, and the sequence has been used in the polymerase chain reaction to amplify normal and mdx dystrophin transcripts in the area of the mdx mutation. Sequence analysis of the amplification products showed that the mdx mouse has a single base substitution within an exon, which causes premature termination of the polypeptide chain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sicinski, P -- Geng, Y -- Ryder-Cook, A S -- Barnard, E A -- Darlison, M G -- Barnard, P J -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1578-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Unit, MRC Centre, Cambridge, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2662404" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Chromosome Mapping ; Cloning, Molecular ; Codon ; DNA/genetics ; DNA Probes ; DNA-Directed DNA Polymerase ; Dystrophin ; Exons ; Gene Amplification ; Humans ; Mice ; Mice, Mutant Strains ; Molecular Sequence Data ; Muscle Proteins/*genetics ; Muscular Dystrophy, Animal/*genetics ; *Mutation ; Nucleic Acid Hybridization ; Phenotype
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    Phylogenetic meaning of the kingdom concept: an unusual ribosomal RNA from Giardia lamblia (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-01-06
    Description: An analysis of the small subunit ribosomal RNA (16S-like rRNA) from the protozoan Giardia lamblia provided a new perspective on the evolution of nucleated cells. Evolutionary distances estimated from sequence comparisons between the 16S-like rRNAs of Giardia lamblia and other eukaryotes exceed similar estimates of evolutionary diversity between archaebacteria and eubacteria and challenge the phylogenetic significance of multiple eukaryotic kingdoms. The Giardia lamblia 16S-like rRNA has retained many of the features that may have been present in the common ancestor of eukaryotes and prokaryotes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sogin, M L -- Gunderson, J H -- Elwood, H J -- Alonso, R A -- Peattie, D A -- New York, N.Y. -- Science. 1989 Jan 6;243(4887):75-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Jewish Center for Immunology and Respiratory Medicine, Department of Pediatrics, Denver, CO 80206.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911720" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Giardia/*genetics ; Humans ; Molecular Sequence Data ; Nucleic Acid Conformation ; *Phylogeny ; RNA, Ribosomal/*genetics ; RNA, Ribosomal, 16S/genetics
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    Regulation of proenkephalin by Fos and Jun (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-22
    Description: Fos and Jun form a heterodimeric complex that associates with the nucleotide sequence motif known as the AP-1 binding site. Although this complex has been proposed to function as a transcriptional regulator in neurons, no specific target gene has yet been identified. Proenkephalin mRNA increased in the hippocampus during seizure just after an increase in c-fos and c-jun expression was detected. Fos-Jun complexes bound specifically to a regulatory sequence in the 5' control region of the proenkephalin gene. Furthermore, c-fos and c-jun stimulated transcription from this control region synergistically in transactivation assays. These data suggest that the proenkephalin gene may be a physiological target for Fos and Jun in the hippocampus and indicate that these proto-oncogene transcription factors may play a role in neuronal responses to stimulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sonnenberg, J L -- Rauscher, F J 3rd -- Morgan, J I -- Curran, T -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1622-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Oncology, Molecular Biology, Roche Research Center, Nutley, NJ 07110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2512642" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Brain/*metabolism ; Cell Line ; DNA-Binding Proteins/*genetics/metabolism ; Enhancer Elements, Genetic ; Enkephalins/*genetics ; *Gene Expression Regulation ; *Genes ; Hippocampus/metabolism ; Mice ; Molecular Sequence Data ; Promoter Regions, Genetic ; Protein Precursors/*genetics ; Protein-Tyrosine Kinases/*genetics ; Proto-Oncogene Proteins/*genetics/metabolism ; Proto-Oncogene Proteins c-fos ; Proto-Oncogene Proteins c-jun ; *Proto-Oncogenes ; RNA, Messenger/genetics ; Teratoma ; Transcription Factors/*genetics/metabolism ; Transcription, Genetic
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    Calicheamicin gamma 1I and DNA: molecular recognition process responsible for site-specificity (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-05-12
    Description: Calicheamicin gamma 1I is a recently discovered diyne-ene-containing antitumor antibiotic that cleaves DNA in a double-stranded fashion, a rarity among drugs, at specific sequences. It is proposed that the cutting specificity is due to a combination of the complementarity of the diyne-ene portion of the aglycone with DNA secondary structures and stabilization by association of the thiobenzoate-carbohydrate tail with the minor groove.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zein, N -- Poncin, M -- Nilakantan, R -- Ellestad, G A -- New York, N.Y. -- Science. 1989 May 12;244(4905):697-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cyanamid Company, Medical Research Division, Lederle Laboratories, Pearl River, NY 10965.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2717946" target="_blank"〉PubMed〈/a〉
    Keywords: *Aminoglycosides ; Animals ; Anti-Bacterial Agents/*metabolism ; Antibiotics, Antineoplastic ; Base Sequence ; Benzoates ; Binding Sites ; Carbohydrates ; Cattle ; Computer Simulation ; DNA/*metabolism ; Enediynes ; Models, Molecular ; Molecular Structure ; Nucleic Acid Conformation ; Structure-Activity Relationship
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    The cholinergic neuronal differentiation factor from heart cells is identical to leukemia inhibitory factor (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-15
    Description: A protein secreted by cultured rat heart cells can direct the choice of neurotransmitter phenotype made by cultured rat sympathetic neurons. Structural analysis and biological assays demonstrated that this protein is identical to a protein that regulates the growth and differentiation of embryonic stem cells and myeloid cells, and that stimulates bone remodeling and acute-phase protein synthesis in hepatocytes. This protein has been termed D factor, DIA, DIF, DRF, HSFIII, and LIF. Thus, this cytokine, like IL-6 and TGF beta, regulates growth and differentiation in the embryo and in the adult in many tissues, now including the nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamamori, T -- Fukada, K -- Aebersold, R -- Korsching, S -- Fann, M J -- Patterson, P H -- New York, N.Y. -- Science. 1989 Dec 15;246(4936):1412-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biology Division, California Institute of Technology, Pasadena 91125.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2512641" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Differentiation ; Cells, Cultured ; Choline/*physiology ; Cloning, Molecular ; DNA/genetics ; *Growth Inhibitors/genetics/pharmacology/secretion ; Humans ; Immunosorbent Techniques ; *Interleukin-6 ; Leukemia Inhibitory Factor ; *Lymphokines ; Mice ; Molecular Sequence Data ; Myocardium/*metabolism ; Neurons/*cytology ; Rats ; Sequence Homology, Nucleic Acid
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 80
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    Inhibition of DNA binding proteins by oligonucleotide-directed triple helix formation (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-18
    Description: Oligonucleotides that bind to duplex DNA in a sequence-specific manner by triple helix formation offer an approach to the experimental manipulation of sequence-specific protein binding. Micromolar concentrations of pyrimidine oligodeoxyribonucleotides are shown to block recognition of double helical DNA by prokaryotic modifying enzymes and a eukaryotic transcription factor at a homopurine target site. Inhibition is sequence-specific. Oligonucleotides containing 5-methylcytosine provide substantially more efficient inhibition than oligonucleotides containing cytosine. The results have implications for gene-specific repression by oligonucleotides or their analogs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maher, L J 3rd -- Wold, B -- Dervan, P B -- New York, N.Y. -- Science. 1989 Aug 18;245(4919):725-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, California Institute of Technology, Pasadena 91125.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2549631" target="_blank"〉PubMed〈/a〉
    Keywords: 5-Methylcytosine ; Animals ; Base Sequence ; Cytosine/analogs & derivatives ; DNA/*metabolism ; DNA Restriction Enzymes ; DNA, Recombinant ; DNA-Binding Proteins/*antagonists & inhibitors/metabolism ; Deoxyribonucleases, Type II Site-Specific/metabolism ; Metallothionein/genetics ; Methylation ; Mice ; Molecular Sequence Data ; Mutation ; Nucleic Acid Conformation ; Oligodeoxyribonucleotides/*pharmacology ; Plasmids ; Promoter Regions, Genetic ; Structure-Activity Relationship ; Transcription Factors/metabolism
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  • 81
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    Access to a messenger RNA sequence or its protein product is not limited by tissue or species specificity (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-21
    Description: RNA amplification with transcript sequencing (RAWTS) is a rapid and sensitive method of direct sequencing that involves complementary DNA synthesis, polymerase chain reaction (PCR) with a primer or primers containing a phage promoter, transcription from the phage promoter, and reverse transcriptase-mediated sequencing. By means of RAWTS, it was possible to sequence each of four tissue-specific human messenger RNAs (blue pigment, factor IX, phenylalanine hydroxylase, and tyrosine hydroxylase) in four cell types examined (white blood cells, liver, K562 erythroleukemia cells, and chorionic villus cells). These results indicate that there is a basal rate of transcription, splicing, and polyadenylation of tissue-specific mRNAs in adult and embryonic tissues. In addition to revealing sequence information, it is possible to generate a desired in vitro translation product by incorporating a translation initiation signal into the appropriate PCR primer. RAWTS can be used to obtain novel mRNA sequence information from other species as illustrated with a segment of the catalytic domain of factor IX. In general, the ability to obtain mRNA sequences rapidly across species boundaries should aid both the study of protein evolution and the identification of sequences crucial for protein structure and function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sarkar, G -- Sommer, S S -- New York, N.Y. -- Science. 1989 Apr 21;244(4902):331-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology and Molecular Biology, Mayo Clinic/Foundation, Rochester, MN 55905.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2565599" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Chorionic Villi/analysis ; DNA/biosynthesis ; DNA-Directed DNA Polymerase/metabolism ; Factor IX/*genetics ; Gene Amplification ; Humans ; Leukemia, Erythroblastic, Acute/metabolism ; Leukocytes/analysis ; Liver/analysis ; Molecular Sequence Data ; Phenylalanine Hydroxylase/*genetics ; Promoter Regions, Genetic ; Protein Biosynthesis ; RNA, Messenger/*genetics ; Retinal Pigments/*genetics ; Species Specificity ; Tissue Distribution ; Transcription, Genetic ; Tumor Cells, Cultured ; Tyrosine 3-Monooxygenase/*genetics
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  • 82
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    Scissors-grip model for DNA recognition by a family of leucine zipper proteins (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-11-17
    Description: C/EBP is a sequence-specific DNA binding protein that regulates gene expression in certain mammalian cells. The region of the C/EBP polypeptide required for specific recognition of DNA is related in amino acid sequence to other regulatory proteins, including the Fos and Jun transforming proteins. It has been proposed that these proteins bind DNA via a bipartite structural motif, consisting of a dimerization interface termed the "leucine zipper" and a DNA contact surface termed the "basic region." An evaluation of the properties of conserved amino acids within the basic region of 11 deduced protein sequences, coupled with the observation that they are located at an invariant distance from the leucine zipper, has led to the formulation of a "scissors-grip" model for DNA binding. The architectural features of this model are well suited for interaction with directly abutted, dyadsymmetric DNA sequences. Data supportive of the model were obtained with chemical probes of protein: DNA complexes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vinson, C R -- Sigler, P B -- McKnight, S L -- New York, N.Y. -- Science. 1989 Nov 17;246(4932):911-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Research Laboratories, Department of Embryology, Carnegie Institution of Washington, Baltimore, MD 21210.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2683088" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; DNA/*metabolism ; DNA-Binding Proteins/*metabolism ; *Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Oligodeoxyribonucleotides ; Protein Conformation ; Substrate Specificity
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  • 83
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    A direct repeat is a hotspot for large-scale deletion of human mitochondrial DNA (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-04-21
    Description: Kearns-Sayre syndrome (KSS) and progressive external ophthalmoplegia (PEO) are related neuromuscular disorders characterized by ocular myopathy and ophthalmoplegia. Almost all patients with KSS and about half with PEO harbor large deletions in their mitochondrial genomes. The deletions differ in both size and location, except for one, 5 kilobases long, that is found in more than one-third of all patients examined. This common deletion was found to be flanked by a perfect 13-base pair direct repeat in the normal mitochondrial genome. This result suggests that homologous recombination deleting large regions of intervening mitochondrial DNA, which previously had been observed only in lower eukaryotes and plants, operates in mammalian mitochondrial genomes as well, and is at least one cause of the deletions found in these two related mitochondrial myopathies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schon, E A -- Rizzuto, R -- Moraes, C T -- Nakase, H -- Zeviani, M -- DiMauro, S -- NS11766/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1989 Apr 21;244(4902):346-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Columbia University, New York, NY 10032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2711184" target="_blank"〉PubMed〈/a〉
    Keywords: Base Composition ; Base Sequence ; Chromosome Deletion ; DNA, Mitochondrial/*genetics ; Gene Amplification ; Humans ; Kearns-Sayre Syndrome/*genetics ; Molecular Sequence Data ; Ophthalmoplegia/*genetics ; RNA, Messenger/genetics ; Recombination, Genetic ; Repetitive Sequences, Nucleic Acid
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  • 84
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    The design and catalytic properties of a simplified ribonuclease P RNA (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: Ribonuclease P (RNase P) RNA is the catalytic moiety of the ribonucleoprotein enzyme that removes precursor sequences from the 5' ends of pre-transfer RNAs in eubacteria. Phylogenetic variation according to recently proposed secondary structure models was used to identify structural elements of the RNase P RNA that are dispensable for catalysis. A simplified RNase P RNA that consists only of evolutionarily conserved features was designed, synthesized, and characterized. Although the simplified RNA (Min 1 RNA) is only 263 nucleotides in length, in contrast to the 354 to 417 nucleotides of naturally occurring RNase P RNAs, its specificity of pre-tRNA cleavage is identical to that of the native enzymes. Moreover, the catalytic efficiencies of the Min 1 RNA and the native RNA enzymes are similar. These results focus the search for the catalytic elements of RNase P RNAs to their conserved structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Waugh, D S -- Green, C J -- Pace, N R -- GM29231/GM/NIGMS NIH HHS/ -- GM34527/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1569-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Indiana University, Bloomington 47405.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2472671" target="_blank"〉PubMed〈/a〉
    Keywords: Bacillus megaterium/enzymology ; Base Sequence ; Biological Evolution ; Catalysis ; Cloning, Molecular ; DNA-Directed RNA Polymerases/genetics ; Endoribonucleases/genetics/*metabolism ; Escherichia coli/enzymology ; *Escherichia coli Proteins ; Molecular Sequence Data ; Nucleic Acid Conformation ; Plasmids ; Promoter Regions, Genetic ; RNA, Bacterial/genetics/*metabolism ; Ribonuclease P ; Species Specificity ; T-Phages/enzymology/genetics ; Temperature ; Transcription, Genetic
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  • 85
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    The neuron-specific protein PGP 9.5 is a ubiquitin carboxyl-terminal hydrolase (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-11-03
    Description: A complementary DNA (cDNA) for ubiquitin carboxyl-terminal hydrolase isozyme L3 was cloned from human B cells. The cDNA encodes a protein of 230 amino acids with a molecular mass of 26.182 daltons. The human protein is very similar to the bovine homolog, with only three amino acids differing in over 100 residues compared. The amino acid sequence deduced from the cDNA was 54% identical to that of the neuron-specific protein PGP 9.5. Purification of bovine PGP 9.5 confirmed that it is also a ubiquitin carboxyl-terminal hydrolase. These results suggest that a family of such related proteins exists and that their expression is tissue-specific.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilkinson, K D -- Lee, K M -- Deshpande, S -- Duerksen-Hughes, P -- Boss, J M -- Pohl, J -- New York, N.Y. -- Science. 1989 Nov 3;246(4930):670-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2530630" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; B-Lymphocytes/enzymology ; Base Sequence ; Cattle ; DNA/genetics ; Humans ; Isoenzymes/genetics ; Molecular Sequence Data ; Neuropeptides/*genetics/isolation & purification ; Sequence Homology, Nucleic Acid ; Thiolester Hydrolases/*genetics/isolation & purification ; Ubiquitin Thiolesterase
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  • 86
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    Amplification of a gene related to mammalian mdr genes in drug-resistant Plasmodium falciparum (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-06-09
    Description: The malaria parasite Plasmodium falciparum contains at least two genes related to the mammalian multiple drug resistance genes, and at least one of the P. falciparum genes is expressed at a higher level and is present in higher copy number in a strain that is resistant to multiple drugs than in a strain that is sensitive to the drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, C M -- Serrano, A E -- Wasley, A -- Bogenschutz, M P -- Shankar, A H -- Wirth, D F -- 1F23 AI07801-01/AI/NIAID NIH HHS/ -- 1K11 AI00892-01/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1184-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Tropical Public Health Harvard School of Public Health, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2658061" target="_blank"〉PubMed〈/a〉
    Keywords: *ATP-Binding Cassette Transporters ; Amino Acid Sequence ; Animals ; Base Sequence ; Drug Resistance/genetics ; *Gene Amplification ; Invertebrate Hormones/*genetics ; Mice ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Plasmodium falciparum/*genetics ; *Protozoan Proteins ; Sequence Homology, Nucleic Acid
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  • 87
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    On finding all suboptimal foldings of an RNA molecule (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-04-07
    Description: An algorithm and a computer program have been prepared for determining RNA secondary structures within any prescribed increment of the computed global minimum free energy. The mathematical problem of determining how well defined a minimum energy folding is can now be solved. All predicted base pairs that can participate in suboptimal structures may be displayed and analyzed graphically. Representative suboptimal foldings are generated by selecting these base pairs one at a time and computing the best foldings that contain them. A distance criterion that ensures that no two structures are "too close" is used to avoid multiple generation of similar structures. Thermodynamic parameters, including free-energy increments for single-base stacking at the ends of helices and for terminal mismatched pairs in interior and hairpin loops, are incorporated into the underlying folding model of the above algorithm.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zuker, M -- New York, N.Y. -- Science. 1989 Apr 7;244(4900):48-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biological Sciences, National Research Council of Canada, Ottawa, Ontario.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2468181" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Molecular Sequence Data ; *Nucleic Acid Conformation ; *Rna
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  • 88
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    Unusual pattern of accumulation of mRNA encoding EGF-related protein in sea urchin embryos (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-11-10
    Description: A sea urchin (Strongylocentrotus purpuratus) messenger RNA encoding a protein (SpEGF2) related to epidermal growth factor (EGF) was identified. The full-length complementary DNA sequence predicts a protein with an unusually simple structure, including four tandem EGF-like repeats and a hydrophobic leader, but lacking a potential transmembrane domain. Sequence similarities suggest that the peptides are homologous to two peptides from a different sea urchin species, which cause a classic developmental defect, exogastrulation, when added to the seawater outside of embryos. The SpEGF2 messenger RNA begins to accumulate at blastula stage, and in pluteus larvae it is distributed in discrete regions of ectoderm that are not congruent with known histological borders. One region corresponds to that expressing the homeodomain-containing protein, SpHbox1. The structure of the SpEGF2 protein and the pattern of accumulation of its messenger RNA suggest that it may have important functions as a secreted factor during development of sea urchin embryos.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, Q -- Angerer, L M -- Angerer, R C -- GM25553/GM/NIGMS NIH HHS/ -- HD602/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):806-8.〈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/2814501" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Codon/genetics ; DNA/*genetics ; Epidermal Growth Factor/*genetics/physiology ; Molecular Sequence Data ; Nucleic Acid Hybridization ; RNA, Messenger/*biosynthesis ; Repetitive Sequences, Nucleic Acid ; Sea Urchins/embryology/*genetics
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  • 89
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    PCR analysis of DNA from multiple sclerosis patients for the presence of HTLV-I (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):821-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2683085" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Base Sequence ; DNA, Viral/*analysis/genetics ; Gene Products, env/genetics ; Gene Products, gag/genetics ; Gene Products, pol/genetics ; HTLV-I Infections/*complications ; Human T-lymphotropic virus 1/genetics/*isolation & purification ; Humans ; Middle Aged ; Molecular Sequence Data ; Multiple Sclerosis/complications/*microbiology ; Polymerase Chain Reaction
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  • 90
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    Functionally distinct NF-kappa B binding sites in the immunoglobulin kappa and IL-2 receptor alpha chain genes (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-04-28
    Description: The interleukin-2 receptor alpha (IL-2R alpha) chain gene contains a sequence similar to the immunoglobulin (Ig) kappa (kappa) enhancer NF-kappa B binding site. This site, which is bound by the nuclear protein, NF-kappa B, is critical for Ig kappa gene expression. The major T cell nuclear factor that binds to the IL-2R alpha site in vitro appears indistinguishable from NF-kappa B. NF-kappa B binds to IL-2R alpha and kappa sequences with similar affinities; however, only the kappa site potently activates transcription from heterologous promoters. Thus, high-affinity NF-kappa B binding in vitro cannot be equated with transcriptional activation in vivo. Mutation of the NF-kappa B binding site in the context of an IL-2 R alpha promoter construct markedly diminished promoter activity in human T cell lymphotropic virus type I (HTLV-I)-transformed MT-2 cells but not in phorbol myristate acetate-stimulated Jurkat T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cross, S L -- Halden, N F -- Lenardo, M J -- Leonard, W J -- New York, N.Y. -- Science. 1989 Apr 28;244(4903):466-9.〈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/2497520" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; Cell Line, Transformed ; DNA-Binding Proteins/*metabolism ; *Enhancer Elements, Genetic ; *Gene Expression Regulation ; HIV-1/genetics ; HeLa Cells ; Human T-lymphotropic virus 1 ; Humans ; Immunoglobulin kappa-Chains/*genetics ; Mice ; Molecular Sequence Data ; Mutation ; NF-kappa B ; Promoter Regions, Genetic ; Receptors, Interleukin-2/*genetics ; T-Lymphocytes/metabolism ; Tetradecanoylphorbol Acetate/pharmacology ; Transcription Factors/*metabolism ; Transcription, Genetic
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  • 91
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    Prevention of translational frameshifting by the modified nucleoside 1-methylguanosine (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-05-26
    Description: The methylated nucleoside 1-methylguanosine (m1G) is present next to the 3' end of the anticodon (position 37) in all transfer RNAs (tRNAs) that read codons starting with C except in those tRNAs that read CAN codons. All of the three proline tRNA species, which read CCN codons in Salmonella typhimurium, have been sequenced and shown to contain m1G in position 37. A mutant of S. typhimurium that lacks m1G in its tRNA when grown at temperatures above 37 degrees C, has now been isolated. The mutation (trmD3) responsible for this methylation deficiency is in the structural gene (trmD) for the tRNA(m1G37)methyltransferase. Therefore, the three proline tRNAs in the trmD3 mutant have an unmodified guanosine at position 37. Furthermore, the trmD3 mutation also causes at least one of the tRNAPro species to frequently shift frame when C's are present successively in the message. Thus, m1G appears to prevent frameshifting. The data from eubacteria apply to both eukaryotes and archaebacteria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bjork, G R -- Wikstrom, P M -- Bystrom, A S -- New York, N.Y. -- Science. 1989 May 26;244(4907):986-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, Umea University, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2471265" target="_blank"〉PubMed〈/a〉
    Keywords: Anticodon ; Base Sequence ; Genes ; Guanosine/*analogs & derivatives/physiology ; Histidine ; Methylation ; *Mutation ; Operon ; *Protein Biosynthesis ; RNA, Bacterial/genetics ; RNA, Transfer, Pro/genetics ; Salmonella typhimurium/*genetics ; Suppression, Genetic ; tRNA Methyltransferases/*genetics
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  • 92
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    Identification of the fusion peptide of primate immunodeficiency viruses (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-12
    Description: Membrane fusion induced by the envelope glycoproteins of human and simian immunodeficiency viruses (HIV and SIVmac) is a necessary step for the infection of CD4 cells and for the formation of syncytia after infection. Identification of the region in these molecules that mediates the fusion events is important for understanding and possibly interfering with HIV/SIVmac infection and pathogenesis. Amino acid substitutions were made in the 15 NH2-terminal residues of the SIVmac gp32 transmembrane glycoprotein, and the mutants were expressed in recombinant vaccinia viruses, which were then used to infect CD4-expressing T cell lines. Mutations that increased the overall hydrophobicity of the gp32 NH2-terminus increased the ability of the viral envelope to induce syncytia formation, whereas introduction of polar or charged amino acids in the same region abolished the fusogenic function of the viral envelope. Hydrophobicity in the NH2-terminal region of gp32 may therefore be an important correlate of viral virulence in vivo and could perhaps be exploited to generate a more effective animal model for the study of acquired immunodeficiency syndrome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bosch, M L -- Earl, P L -- Fargnoli, K -- Picciafuoco, S -- Giombini, F -- Wong-Staal, F -- Franchini, G -- New York, N.Y. -- Science. 1989 May 12;244(4905):694-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Tumor Cell Biology, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2541505" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cell Line ; Cloning, Molecular ; DNA, Viral/genetics ; *Gene Products, env ; HIV/*analysis ; HIV Antigens/metabolism ; HIV Envelope Protein gp120 ; HIV Envelope Protein gp41 ; Humans ; Membrane Glycoproteins ; Molecular Sequence Data ; Mutation ; *Retroviridae Proteins/genetics/metabolism/pharmacology ; *Retroviridae Proteins, Oncogenic ; Retroviruses, Simian/*analysis ; Structure-Activity Relationship ; T-Lymphocytes, Helper-Inducer/microbiology ; Transfection ; Vaccinia virus/genetics ; *Viral Envelope Proteins/genetics/metabolism/pharmacology ; *Viral Fusion Proteins
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 93
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    Functional analysis of CAR, the target sequence for the Rev protein of HIV-1 (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-22
    Description: Expression of high levels of the structural proteins of the human immunodeficiency virus type 1 (HIV-1) requires the presence of the protein encoded by the rev open reading frame (Rev) and its associated target sequence CAR (cis anti-repression sequence) which is present in the env region of viral RNA. Extensive mutagenesis demonstrated that CAR has a complex secondary structure consisting of a central stem and five stem/loops. Disruption of any of these structures severely impaired the Rev response, but many of the stem/loops contain material that was unnecessary for Rev regulation and must be retained in these structures to avoid disturbing adjacent structures critical for CAR function. Probably no more than two of the described structural components are involved in sequence-specific recognition by regulatory proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dayton, E T -- Powell, D M -- Dayton, A I -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1625-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Immunoregulation, National Institute of Allergy and Infectious Disease, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2688093" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Line ; Chromosome Deletion ; Gene Amplification ; Gene Products, rev/genetics/*metabolism ; *Genes, Viral ; HIV-1/*genetics ; Models, Structural ; Molecular Sequence Data ; Mutation ; Nucleic Acid Conformation ; Plasmids ; RNA, Viral/*genetics ; Software ; Trans-Activators/*metabolism ; Transfection ; Viral Envelope Proteins/genetics ; rev Gene Products, Human Immunodeficiency Virus
    Print ISSN: 0036-8075
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  • 94
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    Similarity between the transcriptional silencer binding proteins ABF1 and RAP1 (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-24
    Description: The yeast ARS binding factor 1 (ABF1)--where ARS is an autonomously replicating sequence--and repressor/activator protein 1 (RAP1) have been implicated in DNA replication, transcriptional activation, and transcriptional silencing. The ABF1 gene was cloned and sequenced and shown to be essential for viability. The predicted amino acid sequence contains a novel sequence motif related to the zinc finger, and the ABF1 protein requires zinc and unmodified cysteine residues for sequence-specific DNA binding. Interestingly, ABF1 is extensively related to its counterpart, RAP1, and both proteins share a region of similarity with SAN1, a suppressor of certain SIR4 mutations, suggesting that this region may be involved in mediating SIR function at the silent mating type loci.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Diffley, J F -- Stillman, B -- AI20460/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 24;246(4933):1034-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, NY 11724.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2511628" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; DNA-Binding Proteins/*genetics ; Fungal Proteins/*genetics ; *Genes, Fungal ; Metalloproteins/genetics ; Molecular Sequence Data ; Restriction Mapping ; Saccharomyces cerevisiae/*genetics ; *Saccharomyces cerevisiae Proteins ; Sequence Homology, Nucleic Acid ; *Transcription Factors ; *Transcription, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 95
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    How old is the genetic code? Statistical geometry of tRNA provides an answer (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-05-12
    Description: The age of the molecular organization of life as expressed in the genetic code can be estimated from experimental data. Comparative sequence analysis of transfer RNA by the method of statistical geometry in sequence space suggests that about one-third of the present transfer RNA sequence divergence was present at the urkingdom level about the time when archaebacteria separated from eubacteria. It is concluded that the genetic code is not older than, but almost as old as our planet. While this result may not be unexpected, it was not clear until now that interpretable data exist that permit inferences about such early stages of life as the establishment of the genetic code.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eigen, M -- Lindemann, B F -- Tietze, M -- Winkler-Oswatitsch, R -- Dress, A -- von Haeseler, A -- New York, N.Y. -- Science. 1989 May 12;244(4905):673-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institut fur biophysikalische Chemie, Gottingen, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2497522" target="_blank"〉PubMed〈/a〉
    Keywords: Anticodon ; Archaea/genetics ; Base Sequence ; *Biological Evolution ; Codon ; Computer Simulation ; Eubacterium/genetics ; *Genetic Code ; Mutation ; Nucleic Acid Conformation ; Phylogeny ; *RNA, Transfer ; Statistics as Topic ; Time Factors
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 96
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    Cyclosporin A specifically inhibits function of nuclear proteins involved in T cell activation (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-12-22
    Description: One action of cyclosporin A thought to be central to many of its immunosuppressive effects is its ability to inhibit the early events of T lymphocyte activation such as lymphokine gene transcription in response to signals initiated at the antigen receptor. Cyclosporin A was found to specifically inhibit the appearance of DNA binding activity of NF-AT, AP-3, and to a lesser extent NF-kappa B, nuclear proteins that appear to be important in the transcriptional activation of the genes for interleukin-2 and its receptor, as well as several other lymphokines. In addition, cyclosporin A abolished the ability of the NF-AT binding site to activate a linked promoter in transfected mitogen-stimulated T lymphocytes and in lymphocytes from transgenic mice. These results indicate that cyclosporin A either directly inhibits the function of nuclear proteins critical to T lymphocyte activation or inhibits the action of a more proximal member of the signal transmission cascade leading from the antigen receptor to the nucleus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Emmel, E A -- Verweij, C L -- Durand, D B -- Higgins, K M -- Lacy, E -- Crabtree, G R -- CA 39612/CA/NCI NIH HHS/ -- HL 33942/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1617-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2595372" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cell Line ; Chromosome Deletion ; Cyclosporins/*pharmacology ; Enhancer Elements, Genetic ; Gene Expression Regulation/*drug effects ; Genes/drug effects ; Humans ; Interleukin-2/genetics ; Lymphocyte Activation/*drug effects ; Molecular Sequence Data ; Mutation ; Nuclear Proteins/*antagonists & inhibitors ; Oligonucleotide Probes ; Receptors, Interleukin-2/genetics ; Repetitive Sequences, Nucleic Acid ; T-Lymphocytes/drug effects/*immunology ; Transcription, Genetic
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  • 97
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    Repeat-induced G-C to A-T mutations in Neurospora (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: In the Neurospora genome duplicate sequences are detected and altered in the sexual phase. Both copies of duplicate genes are inactivated at high frequency, whether or not they are linked. Restriction sites change, and affected sequences typically become heavily methylated. To characterize the alterations of the DNA, duplicated sequences were isolated before and after one or more sexual cycles. DNA sequencing and heteroduplex analyses demonstrated that the process (termed RIP) produces exclusively G-C to A-T mutations. Changes occur principally at sites where adenine is 3' of the changed cytosine. A sequence duplicated at a distant site in the genome lost approximately 10 percent of its G-C pairs in one passage through a cross. A closely linked duplication of the same sequence that was passed twice through a cross lost about half of its G-C pairs. The results suggest a mechanism for the RIP process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cambareri, E B -- Jensen, B C -- Schabtach, E -- Selker, E U -- GM 35690/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1571-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology, University of Oregon, Eugene 97403.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2544994" target="_blank"〉PubMed〈/a〉
    Keywords: Base Composition ; Base Sequence ; Cytosine/metabolism ; DNA Replication ; DNA Restriction Enzymes ; DNA, Fungal/*genetics ; Meiosis ; Methylation ; Molecular Sequence Data ; *Mutation ; Neurospora/*genetics ; Neurospora crassa/*genetics ; Nucleic Acid Heteroduplexes ; Nucleic Acid Hybridization ; *Repetitive Sequences, Nucleic Acid
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  • 98
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    A novel mRNA of the A4 amyloid precursor gene coding for a possibly secreted protein (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-08-11
    Description: The gene, encoding the A4 peptide found in the amyloid core of senile plaques isolated from the cerebral cortex of patients with Alzheimer's disease, produces at least three precursors that resemble cell surface receptors. A clone isolated from a human brain complementary DNA library contained the structural sequence for an A4 amyloid peptide precursor with a serine protease inhibitor domain in which 208 amino acids at the carboxyl terminal are replaced by 20 amino acids derived from nucleotide sequences with homology to the Alu repeat family. This protein devoid of the transmembrane domain most likely represents a secreted form of the A4 amyloid peptide precursor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Sauvage, F -- Octave, J N -- New York, N.Y. -- Science. 1989 Aug 11;245(4918):651-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Neurochimie, Universite Catholique de Louvain, Bruxelles, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2569763" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*metabolism ; Amino Acid Sequence ; Amyloid/*genetics/secretion ; Amyloid beta-Protein Precursor ; Base Sequence ; Cerebellum/analysis ; Cerebral Cortex/analysis ; DNA Probes ; Gene Amplification ; Humans ; Middle Aged ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Protein Precursors/*genetics/secretion ; RNA, Messenger/*genetics/isolation & purification ; Receptors, Cell Surface ; Sequence Homology, Nucleic Acid
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 99
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    A G protein gamma subunit shares homology with ras proteins (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-26
    Description: Guanine nucleotide binding proteins (G proteins) that transduce signals from cell surface receptors to effector molecules are made up of three subunits, alpha, beta, and gamma. A complementary DNA clone that encodes a 71-amino acid protein was isolated from bovine brain; this protein contains peptide sequences that were derived from the purified gamma subunit of Gi and Go. The primary sequence of this G protein gamma subunit (G gamma) has 55 percent homology to the gamma subunit of transducin (T gamma) and also has homology to functional domains of mammalian ras proteins. The probe for isolating the clone was generated with the use of the polymerase chain reaction (PCR). The extent of divergence between T gamma and G gamma, the isolation of homologous PCR-generated fragments, and the differences between the predicted amino acid sequence of G gamma and that derived from the gamma subunit of Gi and Go indicate that gamma subunits are encoded by a family of genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gautam, N -- Baetscher, M -- Aebersold, R -- Simon, M I -- New York, N.Y. -- Science. 1989 May 26;244(4907):971-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, California Institute of Technology, Pasadena 91125.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2499046" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Brain Chemistry ; Cattle ; Chromatography, High Pressure Liquid ; Cloning, Molecular ; DNA-Directed DNA Polymerase ; Electrophoresis, Polyacrylamide Gel ; GTP-Binding Proteins/*genetics/isolation & purification ; Gene Amplification ; Mice ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Proto-Oncogene Proteins/*genetics ; Proto-Oncogene Proteins p21(ras) ; RNA, Messenger/analysis ; Sequence Homology, Nucleic Acid
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  • 100
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    Drosophila nuclear proteins bind to regions of alternating C and T residues in gene promoters (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-29
    Description: Proteins from Drosophila nuclei that bind to regions of alternating C and T residues present in the promoters of the heat shock genes hsp70 and hsp26 and the histone genes his3 and his4 have been purified. These proteins bind to isolated linear DNA, and genomic footprinting analyses indicate that they are bound to DNA in nuclei. In supercoiled plasmids at low pH, some of these DNA sequences adopt triple-helical structures which, if they form in vivo, could significantly affect chromatin structure. The nuclear proteins described here, and not necessarily the deformed conformation of the DNA, may be responsible for maintaining a potentially inducible promoter structure before transcriptional activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gilmour, D S -- Thomas, G H -- Elgin, S C -- F32 GM107982/GM/NIGMS NIH HHS/ -- GM31532/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 29;245(4925):1487-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Washington University, St. Louis, MO 63130.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2781290" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cytosine/metabolism ; DNA-Binding Proteins/*metabolism ; Deoxyribonuclease I ; Drosophila/genetics/metabolism ; Molecular Sequence Data ; Nuclear Proteins/*metabolism ; *Promoter Regions, Genetic ; Thymine/metabolism
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