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  • Base Sequence
  • Cloning, Molecular
  • American Association for the Advancement of Science (AAAS)  (49)
  • Blackwell Publishing Ltd
  • 1995-1999  (49)
  • 1980-1984
  • 1999  (49)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (49)
  • Blackwell Publishing Ltd
Years
  • 1995-1999  (49)
  • 1980-1984
Year
  • 1
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    Unmasking a cheating gene (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crow, J F -- New York, N.Y. -- Science. 1999 Mar 12;283(5408):1651-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, University of Wisconsin, Madison, WI 53706, USA. jfcrow@facstaff.wisc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10189318" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carrier Proteins/*genetics/physiology ; Cell Nucleus/metabolism ; Cloning, Molecular ; Drosophila/*genetics/physiology ; *Drosophila Proteins ; *GTPase-Activating Proteins ; *Genes, Insect ; Male ; *Meiosis ; Nuclear Proteins/*genetics/physiology ; Sperm Maturation ; Spermatozoa/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Key brain receptor gets an unusual regulator (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1999 Nov 12;286(5443):1265-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610528" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Astrocytes/*enzymology ; Brain/*enzymology ; Cloning, Molecular ; Glutamic Acid/metabolism ; Neurons/metabolism ; Racemases and Epimerases/*genetics/metabolism ; Rats ; Receptors, N-Methyl-D-Aspartate/metabolism ; Serine/*biosynthesis/metabolism ; Stereoisomerism ; Synapses/metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    The promise of comparative genomics in mammals (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-16
    Description: Dense genetic maps of human, mouse, and rat genomes that are based on coding genes and on microsatellite and single-nucleotide polymorphism markers have been complemented by precise gene homolog alignment with moderate-resolution maps of livestock, companion animals, and additional mammal species. Comparative genetic assessment expands the utility of these maps in gene discovery, in functional genomics, and in tracking the evolutionary forces that sculpted the genome organization of modern mammalian species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Brien, S J -- Menotti-Raymond, M -- Murphy, W J -- Nash, W G -- Wienberg, J -- Stanyon, R -- Copeland, N G -- Jenkins, N A -- Womack, J E -- Marshall Graves, J A -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):458-62, 479-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Genomic Diversity, National Cancer Institute, Frederick, MD 21702-1201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10521336" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Domestic/genetics ; Base Sequence ; *Chromosome Mapping ; *Evolution, Molecular ; Genetic Markers ; *Genome ; *Genome, Human ; Humans ; Mammals/*genetics ; Mutation ; *Phylogeny ; Rodentia/genetics
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    A cytotoxic ribonuclease targeting specific transfer RNA anticodons (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-03-26
    Description: The carboxyl-terminal domain of colicin E5 was shown to inhibit protein synthesis of Escherichia coli. Its target, as revealed through in vivo and in vitro experiments, was not ribosomes as in the case of E3, but the transfer RNAs (tRNAs) for Tyr, His, Asn, and Asp, which contain a modified base, queuine, at the wobble position of each anticodon. The E5 carboxyl-terminal domain hydrolyzed these tRNAs just on the 3' side of this nucleotide. Tight correlation was observed between the toxicity of E5 and the cleavage of intracellular tRNAs of this group, implying that these tRNAs are the primary targets of colicin E5.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ogawa, T -- Tomita, K -- Ueda, T -- Watanabe, K -- Uozumi, T -- Masaki, H -- New York, N.Y. -- Science. 1999 Mar 26;283(5410):2097-100.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biotechnology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10092236" target="_blank"〉PubMed〈/a〉
    Keywords: Anticodon/*metabolism ; Bacterial Proteins/biosynthesis/genetics/pharmacology ; Base Sequence ; Cloning, Molecular ; Colicins/genetics/*metabolism/pharmacology ; Escherichia coli/drug effects/metabolism ; *Escherichia coli Proteins ; Guanine/analogs & derivatives/analysis ; Molecular Sequence Data ; RNA, Bacterial/chemistry/*metabolism ; RNA, Ribosomal, 16S/metabolism ; RNA, Transfer, Amino Acid-Specific/chemistry/*metabolism ; RNA, Transfer, Asn/chemistry/metabolism ; RNA, Transfer, Asp/chemistry/metabolism ; RNA, Transfer, His/chemistry/metabolism ; RNA, Transfer, Tyr/chemistry/metabolism ; Ribonucleases/genetics/*metabolism/pharmacology ; Ribosomes/metabolism
    Print ISSN: 0036-8075
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  • 5
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    Paracellular channels! (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wong, V -- Goodenough, D A -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10428705" target="_blank"〉PubMed〈/a〉
    Keywords: Calcium Channels/metabolism ; Cell Membrane/metabolism/ultrastructure ; Claudins ; Cloning, Molecular ; Humans ; Ion Channels ; Ion Transport ; Kidney Diseases/genetics/*metabolism ; Kidney Tubules/*metabolism/ultrastructure ; Lipid Bilayers/metabolism ; Magnesium/blood/*metabolism ; Magnesium Deficiency/genetics/*metabolism ; Membrane Proteins/genetics/*physiology ; Mutation ; Tight Junctions/*metabolism
    Print ISSN: 0036-8075
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  • 6
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    Plant paralog to viral movement protein that potentiates transport of mRNA into the phloem (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: CmPP16 from Cucurbita maxima was cloned and the protein was shown to possess properties similar to those of viral movement proteins. CmPP16 messenger RNA (mRNA) is present in phloem tissue, whereas protein appears confined to sieve elements (SE). Microinjection and grafting studies revealed that CmPP16 moves from cell to cell, mediates the transport of sense and antisense RNA, and moves together with its mRNA into the SE of scion tissue. CmPP16 possesses the characteristics that are likely required to mediate RNA delivery into the long-distance translocation stream. Thus, RNA may move within the phloem as a component of a plant information superhighway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xoconostle-Cazares, B -- Xiang, Y -- Ruiz-Medrano, R -- Wang, H L -- Monzer, J -- Yoo, B C -- McFarland, K C -- Franceschi, V R -- Lucas, W J -- New York, N.Y. -- Science. 1999 Jan 1;283(5398):94-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Plant Biology, Division of Biological Sciences, University of California, Davis, CA 95616, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9872750" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Biological Transport ; Cloning, Molecular ; Cucumis sativus ; Cucurbitaceae/genetics/*metabolism ; Microinjections ; Molecular Sequence Data ; Plant Leaves/metabolism ; Plant Proteins/chemistry/genetics/*metabolism ; Plant Roots/metabolism ; Plant Stems/metabolism ; Plant Viral Movement Proteins ; RNA, Antisense/metabolism ; RNA, Messenger/*metabolism ; RNA, Plant/*metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Signal Transduction ; Viral Proteins/chemistry/metabolism
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  • 7
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    Paracellin-1, a renal tight junction protein required for paracellular Mg2+ resorption (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-03
    Description: Epithelia permit selective and regulated flux from apical to basolateral surfaces by transcellular passage through cells or paracellular flux between cells. Tight junctions constitute the barrier to paracellular conductance; however, little is known about the specific molecules that mediate paracellular permeabilities. Renal magnesium ion (Mg2+) resorption occurs predominantly through a paracellular conductance in the thick ascending limb of Henle (TAL). Here, positional cloning has identified a human gene, paracellin-1 (PCLN-1), mutations in which cause renal Mg2+ wasting. PCLN-1 is located in tight junctions of the TAL and is related to the claudin family of tight junction proteins. These findings provide insight into Mg2+ homeostasis, demonstrate the role of a tight junction protein in human disease, and identify an essential component of a selective paracellular conductance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Simon, D B -- Lu, Y -- Choate, K A -- Velazquez, H -- Al-Sabban, E -- Praga, M -- Casari, G -- Bettinelli, A -- Colussi, G -- Rodriguez-Soriano, J -- McCredie, D -- Milford, D -- Sanjad, S -- Lifton, R P -- F.1/Telethon/Italy -- R01DK51696/DK/NIDDK NIH HHS/ -- TGM06S01/Telethon/Italy -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):103-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10390358" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Calcium/urine ; Chromosomes, Human, Pair 3/genetics ; Claudins ; Cloning, Molecular ; Female ; Genes, Recessive ; Homeostasis ; Humans ; Kidney Diseases/*genetics/metabolism ; Kidney Tubules/chemistry ; Loop of Henle/chemistry/*metabolism ; Magnesium/blood/*metabolism ; Magnesium Deficiency/*genetics/metabolism ; Male ; Membrane Proteins/analysis/chemistry/genetics/*physiology ; Molecular Sequence Data ; Mutation ; Pedigree ; Physical Chromosome Mapping ; Tight Junctions/*metabolism
    Print ISSN: 0036-8075
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  • 8
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    Mechanism of intrinsic transcription termination and antitermination (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-24
    Description: Gene expression is modulated by regulatory elements that influence transcription elongation by RNA polymerase: terminators that disrupt the elongation complex and release RNA, and regulators that overcome termination signals. RNA release from Escherichia coli RNA polymerase can be induced by a complementary oligonucleotide that replaces the upstream half of the RNA hairpin stem of intrinsic terminator transcripts, implying that RNA hairpins act by extracting RNA from the transcription complex. A transcription antiterminator inhibits this activity of oligonucleotides and therefore protects the elongation complex from destabilizing attacks on the emerging transcript. These effects illuminate the structure of the complex and the mechanism of transcription termination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yarnell, W S -- Roberts, J W -- GM 21941/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Apr 23;284(5414):611-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Biochemistry, Molecular and Cell Biology, Biotechnology Building, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10213678" target="_blank"〉PubMed〈/a〉
    Keywords: Base Pairing ; Base Sequence ; DNA, Bacterial/chemistry/genetics/metabolism ; DNA-Directed RNA Polymerases/genetics/*metabolism ; Escherichia coli/*genetics/metabolism ; Models, Genetic ; Molecular Sequence Data ; Nucleic Acid Conformation ; Oligodeoxyribonucleotides/chemistry/metabolism ; RNA, Bacterial/chemistry/genetics/metabolism ; RNA, Messenger/chemistry/genetics/*metabolism ; Templates, Genetic ; *Terminator Regions, Genetic ; *Transcription, Genetic ; Viral Proteins/*metabolism
    Print ISSN: 0036-8075
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  • 9
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    Structure of the VHL-ElonginC-ElonginB complex: implications for VHL tumor suppressor function (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-16
    Description: Mutation of the VHL tumor suppressor is associated with the inherited von Hippel-Lindau (VHL) cancer syndrome and the majority of kidney cancers. VHL binds the ElonginC-ElonginB complex and regulates levels of hypoxia-inducible proteins. The structure of the ternary complex at 2.7 angstrom resolution shows two interfaces, one between VHL and ElonginC and another between ElonginC and ElonginB. Tumorigenic mutations frequently occur in a 35-residue domain of VHL responsible for ElonginC binding. A mutational patch on a separate domain of VHL indicates a second macromolecular binding site. The structure extends the similarities to the SCF (Skp1-Cul1-F-box protein) complex that targets proteins for degradation, supporting the hypothesis that VHL may function in an analogous pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stebbins, C E -- Kaelin, W G Jr -- Pavletich, N P -- New York, N.Y. -- Science. 1999 Apr 16;284(5413):455-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Structural Biology, Joan and Sanford I. Weill Graduate School of Medical Sciences, Cornell University, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10205047" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Cell Cycle Proteins/chemistry/metabolism ; Cloning, Molecular ; Crystallography, X-Ray ; *Genes, Tumor Suppressor ; Humans ; Hydrogen Bonding ; *Ligases ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Mutation, Missense ; Neoplasms/genetics ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Proteins/*chemistry/genetics/metabolism ; S-Phase Kinase-Associated Proteins ; Surface Properties ; Transcription Factors/*chemistry/metabolism ; *Tumor Suppressor Proteins ; *Ubiquitin-Protein Ligases ; Von Hippel-Lindau Tumor Suppressor Protein ; von Hippel-Lindau Disease/*genetics
    Print ISSN: 0036-8075
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  • 10
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    Control of circadian rhythms and photoperiodic flowering by the Arabidopsis GIGANTEA gene (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-08
    Description: Photoperiodic responses in plants include flowering that is day-length-dependent. Mutations in the Arabidopsis thaliana GIGANTEA (GI) gene cause photoperiod-insensitive flowering and alteration of circadian rhythms. The GI gene encodes a protein containing six putative transmembrane domains. Circadian expression patterns of the GI gene and the clock-associated genes, LHY and CCA1, are altered in gi mutants, showing that GI is required for maintaining circadian amplitude and appropriate period length of these genes. The gi-1 mutation also affects light signaling to the clock, which suggests that GI participates in a feedback loop of the plant circadian system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, D H -- Somers, D E -- Kim, Y S -- Choy, Y H -- Lim, H K -- Soh, M S -- Kim, H J -- Kay, S A -- Nam, H G -- GM56006/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1579-82.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Life Science, Pohang University of Science and Technology, Pohang, Kyungbuk, 790-784, Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10477524" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*genetics/*physiology ; *Arabidopsis Proteins ; *Circadian Rhythm ; Cloning, Molecular ; Crosses, Genetic ; DNA-Binding Proteins/genetics ; Darkness ; Feedback ; Gene Expression Regulation, Plant ; *Genes, Plant ; Light ; Molecular Sequence Data ; Mutation ; Photoperiod ; Plant Leaves/physiology ; Plant Proteins/chemistry/*genetics/physiology ; Plant Structures/physiology ; Sequence Deletion ; Transcription Factors/genetics
    Print ISSN: 0036-8075
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  • 11
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    Replication of subgenomic hepatitis C virus RNAs in a hepatoma cell line (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-03
    Description: An estimated 170 million persons worldwide are infected with hepatitis C virus (HCV), a major cause of chronic liver disease. Despite increasing knowledge of genome structure and individual viral proteins, studies on virus replication and pathogenesis have been hampered by the lack of reliable and efficient cell culture systems. A full-length consensus genome was cloned from viral RNA isolated from an infected human liver and used to construct subgenomic selectable replicons. Upon transfection into a human hepatoma cell line, these RNAs were found to replicate to high levels, permitting metabolic radiolabeling of viral RNA and proteins. This work defines the structure of HCV replicons functional in cell culture and provides the basis for a long-sought cellular system that should allow detailed molecular studies of HCV and the development of antiviral drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lohmann, V -- Korner, F -- Koch, J -- Herian, U -- Theilmann, L -- Bartenschlager, R -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):110-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Virology, Johannes-Gutenberg University Mainz, Obere Zahlbacher Strasse 67, 55131 Mainz, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10390360" target="_blank"〉PubMed〈/a〉
    Keywords: Carcinoma, Hepatocellular ; Cloning, Molecular ; Drug Resistance ; *Genome, Viral ; Gentamicins/pharmacology ; Hepacivirus/genetics/*physiology ; Hepatitis C/virology ; Humans ; Liver Neoplasms ; RNA, Viral/*biosynthesis/genetics ; *Replicon ; Transfection ; Tumor Cells, Cultured/*virology ; Viral Nonstructural Proteins/analysis/genetics ; Virus Cultivation ; *Virus Replication
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  • 12
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    The mammalian gene collection (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-16
    Description: The Mammalian Gene Collection (MGC) project is a new effort by the NIH to generate full-length complementary DNA (cDNA) resources. This project will provide publicly accessible resources to the full research community. The MGC project entails the production of libraries, sequencing, and database and repository development, as well as the support of library construction, sequencing, and analytic technologies dedicated to the goal of obtaining a full set of human and other mammalian full-length (open reading frame) sequences and clones of expressed genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strausberg, R L -- Feingold, E A -- Klausner, R D -- Collins, F S -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):455-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Cancer Institute, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10521335" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Computational Biology ; DNA, Complementary ; Databases, Factual ; Expressed Sequence Tags ; *Gene Library ; *Genome ; *Genome, Human ; Humans ; Mammals/*genetics ; Mice ; National Institutes of Health (U.S.) ; Private Sector ; Public Sector ; *Sequence Analysis, DNA ; United States
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  • 13
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    Biotech patents. Genentech, UC settle suit for $200 million (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1999 Nov 26;286(5445):1655.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610555" target="_blank"〉PubMed〈/a〉
    Keywords: Biotechnology/*legislation & jurisprudence ; California ; Cloning, Molecular ; *Human Growth Hormone/genetics ; *Patents as Topic ; Universities/*legislation & jurisprudence
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  • 14
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    Signaling of cell fate decisions by CLAVATA3 in Arabidopsis shoot meristems (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-03-19
    Description: In higher plants, organogenesis occurs continuously from self-renewing apical meristems. Arabidopsis thaliana plants with loss-of-function mutations in the CLAVATA (CLV1, 2, and 3) genes have enlarged meristems and generate extra floral organs. Genetic analysis indicates that CLV1, which encodes a receptor kinase, acts with CLV3 to control the balance between meristem cell proliferation and differentiation. CLV3 encodes a small, predicted extracellular protein. CLV3 acts nonautonomously in meristems and is expressed at the meristem surface overlying the CLV1 domain. These proteins may act as a ligand-receptor pair in a signal transduction pathway, coordinating growth between adjacent meristematic regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fletcher, J C -- Brand, U -- Running, M P -- Simon, R -- Meyerowitz, E M -- New York, N.Y. -- Science. 1999 Mar 19;283(5409):1911-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10082464" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/*cytology/genetics/growth & development/metabolism ; *Arabidopsis Proteins ; Cell Differentiation ; Cell Division ; Cloning, Molecular ; Gene Expression Regulation, Plant ; Genes, Plant ; In Situ Hybridization ; Ligands ; Meristem/*cytology/growth & development/metabolism ; Molecular Sequence Data ; Mutation ; Phenotype ; Plant Proteins/chemistry/genetics/*metabolism ; Plant Shoots/cytology ; RNA, Messenger/genetics/metabolism ; RNA, Plant/genetics/metabolism ; Receptor Protein-Tyrosine Kinases/genetics/metabolism ; Recombinant Fusion Proteins/metabolism ; *Signal Transduction
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    A nucleoside transporter from Trypanosoma brucei involved in drug resistance (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-10
    Description: Drug resistance of pathogens is an increasing problem whose underlying mechanisms are not fully understood. Cellular uptake of the major drugs against Trypanosoma brucei spp., the causative agents of sleeping sickness, is thought to occur through an unusual, so far unidentified adenosine transporter. Saccharomyces cerevisiae was used in a functional screen to clone a gene (TbAT1) from Trypanosoma brucei brucei that encodes a nucleoside transporter. When expressed in yeast, TbAT1 enabled adenosine uptake and conferred susceptibility to melaminophenyl arsenicals. Drug-resistant trypanosomes harbor a defective TbAT1 variant. The molecular identification of the entry route of trypanocides opens the way to approaches for diagnosis and treatment of drug-resistant sleeping sickness.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maser, P -- Sutterlin, C -- Kralli, A -- Kaminsky, R -- New York, N.Y. -- Science. 1999 Jul 9;285(5425):242-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Swiss Tropical Institute, CH-4002 Basel, Switzerland. Biozentrum, University of Basel, CH-4056 Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10398598" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine/*metabolism ; Amino Acid Sequence ; Animals ; Arsenicals/metabolism/pharmacology ; Biological Transport ; Carrier Proteins/chemistry/genetics/*metabolism ; Cloning, Molecular ; Drug Resistance/genetics ; Genes, Protozoan ; Membrane Proteins/chemistry/genetics/*metabolism ; Molecular Sequence Data ; Mutation ; Nucleoside Transport Proteins ; Nucleosides/metabolism ; Purines/metabolism/pharmacology ; Saccharomyces cerevisiae/genetics ; Substrate Specificity ; Trypanocidal Agents/metabolism/*pharmacology ; Trypanosoma brucei brucei/*drug effects/genetics/*metabolism ; Trypanosomiasis, African/drug therapy/parasitology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 16
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    A cyclic antimicrobial peptide produced in primate leukocytes by the ligation of two truncated alpha-defensins (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-16
    Description: Analysis of rhesus macaque leukocytes disclosed the presence of an 18-residue macrocyclic, tridisulfide antibiotic peptide in granules of neutrophils and monocytes. The peptide, termed rhesus theta defensin-1 (RTD-1), is microbicidal for bacteria and fungi at low micromolar concentrations. Antibacterial activity of the cyclic peptide was threefold greater than that of an open-chain analog, and the cyclic conformation was required for antimicrobial activity in the presence of 150 millimolar sodium chloride. Biosynthesis of RTD-1 involves the head-to-tail ligation of two alpha-defensin-related nonapeptides, requiring the formation of two new peptide bonds. Thus, host defense cells possess mechanisms for synthesis and granular packaging of macrocyclic antibiotic peptides that are components of the phagocyte antimicrobial armamentarium.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tang, Y Q -- Yuan, J -- Osapay, G -- Osapay, K -- Tran, D -- Miller, C J -- Ouellette, A J -- Selsted, M E -- AI22931/AI/NIAID NIH HHS/ -- DK33506/DK/NIDDK NIH HHS/ -- DK44632/DK/NIDDK NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):498-502.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, College of Medicine, University of California, Irvine, CA 92697, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10521339" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Anti-Bacterial Agents ; Anti-Infective Agents/chemistry/*metabolism/pharmacology ; Bacteria/drug effects ; Cloning, Molecular ; Defensins ; Disulfides/chemistry ; Fungi/drug effects ; Humans ; Leukopoiesis ; Macaca mulatta ; Molecular Sequence Data ; Monocytes/*metabolism ; Neutrophils/*metabolism ; Oligopeptides/chemistry/genetics/metabolism ; Osmolar Concentration ; Peptides, Cyclic/*biosynthesis/chemistry/genetics/pharmacology ; *Protein Biosynthesis ; Protein Conformation ; Protein Precursors/chemistry/genetics/metabolism ; Protein Processing, Post-Translational ; Proteins/chemistry/genetics/pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 17
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    Genome maps 10. Comparative genomics. Mammalian radiations. Wall chart (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Brien, S J -- Eisenberg, J F -- Miyamoto, M -- Hedges, S B -- Kumar, S -- Wilson, D E -- Menotti-Raymond, M -- Murphy, W J -- Nash, W G -- Lyons, L A -- Menninger, J C -- Stanyon, R -- Wienberg, J -- Copeland, N G -- Jenkins, N A -- Gellin, J -- Yerle, M -- Andersson, L -- Womack, J -- Broad, T -- Postlethwait, J -- Serov, O -- Bailey, E -- James, M R -- Marshall Graves, J A -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):463-78.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Cancer Institute, Frederick, MD, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577209" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Chromosome Mapping ; Chromosome Painting ; *Genome ; *Genome, Human ; Humans ; Mammals/*genetics ; Nucleic Acid Hybridization ; Phylogeny
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  • 18
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    Xyloglucan fucosyltransferase, an enzyme involved in plant cell wall biosynthesis (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-18
    Description: Cell walls are crucial for development, signal transduction, and disease resistance in plants. Cell walls are made of cellulose, hemicelluloses, and pectins. Xyloglucan (XG), the principal load-bearing hemicellulose of dicotyledonous plants, has a terminal fucosyl residue. A 60-kilodalton fucosyltransferase (FTase) that adds this residue was purified from pea epicotyls. Peptide sequence information from the pea FTase allowed the cloning of a homologous gene, AtFT1, from Arabidopsis. Antibodies raised against recombinant AtFTase immunoprecipitate FTase enzyme activity from solubilized Arabidopsis membrane proteins, and AtFT1 expressed in mammalian COS cells results in the presence of XG FTase activity in these cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perrin, R M -- DeRocher, A E -- Bar-Peled, M -- Zeng, W -- Norambuena, L -- Orellana, A -- Raikhel, N V -- Keegstra, K -- New York, N.Y. -- Science. 1999 Jun 18;284(5422):1976-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Michigan State University-Department of Energy (MSU-DOE) Plant Research Laboratory, Michigan State University, East Lansing, MI 48824, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10373113" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Arabidopsis/*enzymology/genetics ; COS Cells ; Carbohydrate Conformation ; Cell Wall/*metabolism ; Cloning, Molecular ; DNA, Complementary ; Expressed Sequence Tags ; Fucosyltransferases/chemistry/genetics/isolation & purification/*metabolism ; Genes, Plant ; *Glucans ; Molecular Sequence Data ; Peas/*enzymology ; Polysaccharides/*biosynthesis/chemistry ; *Xylans
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  • 19
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    Narcolepsy genes wake up the sleep field (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takahashi, J S -- New York, N.Y. -- Science. 1999 Sep 24;285(5436):2076-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Neurobiology and Physiology, Northwestern University, Evanston, IL 60208-3520, USA. j-takahashi@nwu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10523205" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; Circadian Rhythm ; Cloning, Molecular ; Dogs ; Homeostasis ; Hypothalamus/metabolism ; Ligands ; Mice ; Mice, Knockout ; Narcolepsy/*genetics/physiopathology ; Neurons/metabolism ; Neuropeptides/metabolism ; Orexin Receptors ; Receptors, G-Protein-Coupled ; Receptors, Neuropeptide/chemistry/*genetics/physiology ; *Sleep/physiology ; Sleep, REM
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 20
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    Inhibitors of the nonmevalonate pathway of isoprenoid biosynthesis as antimalarial drugs (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-08
    Description: A mevalonate-independent pathway of isoprenoid biosynthesis present in Plasmodium falciparum was shown to represent an effective target for chemotherapy of malaria. This pathway includes 1-deoxy-D-xylulose 5-phosphate (DOXP) as a key metabolite. The presence of two genes encoding the enzymes DOXP synthase and DOXP reductoisomerase suggests that isoprenoid biosynthesis in P. falciparum depends on the DOXP pathway. This pathway is probably located in the apicoplast. The recombinant P. falciparum DOXP reductoisomerase was inhibited by fosmidomycin and its derivative, FR-900098. Both drugs suppressed the in vitro growth of multidrug-resistant P. falciparum strains. After therapy with these drugs, mice infected with the rodent malaria parasite P. vinckei were cured.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jomaa, H -- Wiesner, J -- Sanderbrand, S -- Altincicek, B -- Weidemeyer, C -- Hintz, M -- Turbachova, I -- Eberl, M -- Zeidler, J -- Lichtenthaler, H K -- Soldati, D -- Beck, E -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1573-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Biochemistry, Academic Hospital Centre, Justus-Liebig-University, Friedrichstrasse 24, D-35392 Giessen, Germany. hassan.jomaa@biochemie.med.uni-giessen.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10477522" target="_blank"〉PubMed〈/a〉
    Keywords: Aldose-Ketose Isomerases/*antagonists & inhibitors/chemistry/genetics/metabolism ; Amino Acid Sequence ; Animals ; Antimalarials/*pharmacology ; Cloning, Molecular ; Enzyme Inhibitors/pharmacology ; Fosfomycin/*analogs & derivatives/pharmacology ; Genes, Protozoan ; *Hemiterpenes ; Malaria/*drug therapy/parasitology ; Malaria, Falciparum/drug therapy/parasitology ; Mevalonic Acid/metabolism ; Mice ; Molecular Sequence Data ; Multienzyme Complexes/*antagonists & inhibitors/chemistry/genetics/metabolism ; Organelles/drug effects/metabolism ; Organophosphorus Compounds/metabolism ; Oxidoreductases/*antagonists & inhibitors/chemistry/genetics/metabolism ; Pentosephosphates/*metabolism ; Plasmodium falciparum/*drug effects/genetics/metabolism ; Recombinant Proteins/antagonists & inhibitors/metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Terpenes/*pharmacology
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  • 21
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    Bacterial photoreceptor with similarity to photoactive yellow protein and plant phytochromes (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-20
    Description: A phytochrome-like protein called Ppr was discovered in the purple photosynthetic bacterium Rhodospirillum centenum. Ppr has a photoactive yellow protein (PYP) amino-terminal domain, a central domain with similarity to phytochrome, and a carboxyl-terminal histidine kinase domain. Reconstitution experiments demonstrate that Ppr covalently attaches the blue light-absorbing chromophore p-hydroxycinnamic acid and that it has a photocycle that is spectrally similar to, but kinetically slower than, that of PYP. Ppr also regulates chalcone synthase gene expression in response to blue light with autophosphorylation inhibited in vitro by blue light. Phylogenetic analysis demonstrates that R. centenum Ppr may be ancestral to cyanobacterial and plant phytochromes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jiang, Z -- Swem, L R -- Rushing, B G -- Devanathan, S -- Tollin, G -- Bauer, C E -- GM 40941/GM/NIGMS NIH HHS/ -- R01 GM040941/GM/NIGMS NIH HHS/ -- R01 GM053940/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Jul 16;285(5426):406-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Indiana University, Jordan Hall, Bloomington, IN 47405, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10411503" target="_blank"〉PubMed〈/a〉
    Keywords: Acyltransferases/genetics ; Amino Acid Sequence ; Apoproteins/chemistry/metabolism ; Bacterial Proteins/*chemistry/genetics/physiology ; Chemotaxis ; Cloning, Molecular ; Coumaric Acids/metabolism ; Gene Expression Regulation, Bacterial ; Light ; Molecular Sequence Data ; Mutation ; Phosphorylation ; *Photoreceptors, Microbial ; Phylogeny ; Phytochrome/*chemistry ; Protein Kinases/metabolism ; Rhodospirillum/*chemistry/genetics/physiology ; Sequence Alignment
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  • 22
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    Biosequence exegesis (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-16
    Description: Annotation of large-scale gene sequence data will benefit from comprehensive and consistent application of well-documented, standard analysis methods and from progressive and vigilant efforts to ensure quality and utility and to keep the annotation up to date. However, it is imperative to learn how to apply information derived from functional genomics and proteomics technologies to conceptualize and explain the behaviors of biological systems. Quantitative and dynamical models of systems behaviors will supersede the limited and static forms of single-gene annotation that are now the norm. Molecular biological epistemology will increasingly encompass both teleological and causal explanations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boguski, M S -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):453-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, 8600 Rockville Pike, Bethesda, MD 20894, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10521334" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cloning, Molecular ; *Computational Biology ; Databases, Factual ; *Genetic Techniques ; *Genome ; Genome, Human ; Human Genome Project ; Humans ; Molecular Biology ; *Proteome ; *Sequence Analysis, DNA
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  • 23
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    Potential target found for antimetastasis drugs (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finkel, E -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):33-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10428697" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antineoplastic Agents/therapeutic use ; Clinical Trials as Topic ; Cloning, Molecular ; *Glucuronidase ; Glycoside Hydrolases/*antagonists & inhibitors/*genetics/isolation & ; purification/metabolism ; Humans ; Mice ; Neoplasm Metastasis/*prevention & control ; Rats ; Tumor Cells, Cultured
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  • 24
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    Arabidopsis galactolipid biosynthesis and lipid trafficking mediated by DGD1 (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: The photosynthetic apparatus in plant cells is associated with membranes of the thylakoids within the chloroplast and is embedded into a highly specialized lipid matrix. Diacylglycerol galactolipids are common in thylakoid membranes but are excluded from all others. Isolation of the gene DGD1, encoding a galactosyltransferase-like protein, now provides insights into assembly of the thylakoid lipid matrix and subcellular lipid trafficking in Arabidopsis thaliana.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dormann, P -- Balbo, I -- Benning, C -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2181-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Michigan State University, East Lansing, MI 48824, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10381884" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/genetics/growth & development/*metabolism ; *Arabidopsis Proteins ; Base Sequence ; Chloroplasts/metabolism ; Chromosome Mapping ; DNA, Complementary/genetics ; Endoplasmic Reticulum/metabolism ; Exons ; Galactolipids ; Galactosyltransferases/chemistry/*genetics/*metabolism ; Genes, Plant ; Glycolipids/*biosynthesis ; Intracellular Membranes/metabolism ; *Lipid Metabolism ; Molecular Sequence Data ; Mutation ; Plants, Genetically Modified ; Recombinant Proteins/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 25
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    No winners in patent shootout (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1999 Jun 11;284(5421):1752-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10391787" target="_blank"〉PubMed〈/a〉
    Keywords: Biotechnology/*legislation & jurisprudence ; California ; Cloning, Molecular ; Genetic Vectors ; *Human Growth Hormone/genetics ; Humans ; *Patents as Topic ; Publishing ; Universities/*legislation & jurisprudence
    Print ISSN: 0036-8075
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  • 26
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    Purification and cloning of aggrecanase-1: a member of the ADAMTS family of proteins (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-05
    Description: We purified, cloned, and expressed aggrecanase, a protease that is thought to be responsible for the degradation of cartilage aggrecan in arthritic diseases. Aggrecanase-1 [a disintegrin and metalloproteinase with thrombospondin motifs-4 (ADAMTS-4)] is a member of the ADAMTS protein family that cleaves aggrecan at the glutamic acid-373-alanine-374 bond. The identification of this protease provides a specific target for the development of therapeutics to prevent cartilage degradation in arthritis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tortorella, M D -- Burn, T C -- Pratta, M A -- Abbaszade, I -- Hollis, J M -- Liu, R -- Rosenfeld, S A -- Copeland, R A -- Decicco, C P -- Wynn, R -- Rockwell, A -- Yang, F -- Duke, J L -- Solomon, K -- George, H -- Bruckner, R -- Nagase, H -- Itoh, Y -- Ellis, D M -- Ross, H -- Wiswall, B H -- Murphy, K -- Hillman, M C Jr -- Hollis, G F -- Newton, R C -- Magolda, R L -- Trzaskos, J M -- Arner, E C -- New York, N.Y. -- Science. 1999 Jun 4;284(5420):1664-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Inflammatory Diseases Research, DuPont Pharmaceuticals Company, Wilmington, DE 19880-0400, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10356395" target="_blank"〉PubMed〈/a〉
    Keywords: ADAM Proteins ; Aggrecans ; Amino Acid Sequence ; Arthritis/drug therapy ; Cartilage/metabolism ; Catalytic Domain ; Cloning, Molecular ; Disintegrins/chemistry/metabolism ; *Extracellular Matrix Proteins ; Humans ; Hydroxamic Acids/pharmacology ; Interleukin-1/pharmacology ; Lectins, C-Type ; Metalloendopeptidases/*chemistry/*genetics/isolation & purification/metabolism ; Molecular Sequence Data ; Procollagen N-Endopeptidase ; Protease Inhibitors/pharmacology ; Protein Sorting Signals ; Proteoglycans/metabolism ; Recombinant Proteins/chemistry/metabolism ; Sequence Analysis
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  • 27
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    The maize rough sheath2 gene and leaf development programs in monocot and dicot plants (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-02
    Description: Leaves of higher plants develop in a sequential manner from the shoot apical meristem. Previously it was determined that perturbed leaf development in maize rough sheath2 (rs2) mutant plants results from ectopic expression of knotted1-like (knox) homeobox genes. Here, the rs2 gene sequence was found to be similar to the Antirrhinum PHANTASTICA (PHAN) gene sequence, which encodes a Myb-like transcription factor. RS2 and PHAN are both required to prevent the accumulation of knox gene products in maize and Antirrhinum leaves, respectively. However, rs2 and phan mutant phenotypes differ, highlighting fundamental differences in monocot and dicot leaf development programs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tsiantis, M -- Schneeberger, R -- Golz, J F -- Freeling, M -- Langdale, J A -- GM14578/GM/NIGMS NIH HHS/ -- GM42610/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Apr 2;284(5411):154-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3BR, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10102817" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cloning, Molecular ; DNA-Binding Proteins/chemistry/*genetics ; Down-Regulation ; *Gene Expression Regulation, Plant ; *Genes, Homeobox ; Genes, Plant ; Homeodomain Proteins/*genetics/metabolism ; In Situ Hybridization ; Molecular Sequence Data ; Mutation ; Phenotype ; Plant Development ; Plant Leaves/cytology/genetics/*growth & development/metabolism ; Plant Proteins/chemistry/*genetics ; Plants/*genetics/metabolism ; *Proto-Oncogene Proteins c-myb ; Repressor Proteins/chemistry/*genetics/physiology ; Sequence Alignment ; Zea mays/*genetics/growth & development/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Drosophila S6 kinase: a regulator of cell size (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-25
    Description: Cell proliferation requires cell growth; that is, cells only divide after they reach a critical size. However, the mechanisms by which cells grow and maintain their appropriate size have remained elusive. Drosophila deficient in the S6 kinase gene (dS6K) exhibited an extreme delay in development and a severe reduction in body size. These flies had smaller cells rather than fewer cells. The effect was cell-autonomous, displayed throughout larval development, and distinct from that of ribosomal protein mutants (Minutes). Thus, the dS6K gene product regulates cell size in a cell-autonomous manner without impinging on cell number.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Montagne, J -- Stewart, M J -- Stocker, H -- Hafen, E -- Kozma, S C -- Thomas, G -- F32 GM15926/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Sep 24;285(5436):2126-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Friedrich Miescher Institute, Maulbeerstrasse 66, 4058 Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10497130" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Body Constitution ; Cell Count ; Cell Division ; Cell Size ; Drosophila melanogaster/cytology/*enzymology/genetics/*growth & development ; Epithelial Cells/cytology ; Female ; Genes, Insect ; Larva/cytology/growth & development ; Male ; Metamorphosis, Biological ; Molecular Sequence Data ; Mutation ; Ribosomal Protein S6 Kinases/genetics/*metabolism ; Wings, Animal/*cytology/growth & development
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    Arabidopsis NPH3: A NPH1 photoreceptor-interacting protein essential for phototropism (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-05
    Description: Phototropism of Arabidopsis thaliana seedlings in response to a blue light source is initiated by nonphototropic hypocotyl 1 (NPH1), a light-activated serine-threonine protein kinase. Mutations in three loci [NPH2, root phototropism 2 (RPT2), and NPH3] disrupt early signaling occurring downstream of the NPH1 photoreceptor. The NPH3 gene, now cloned, encodes a NPH1-interacting protein. NPH3 is a member of a large protein family, apparently specific to higher plants, and may function as an adapter or scaffold protein to bring together the enzymatic components of a NPH1-activated phosphorelay.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Motchoulski, A -- Liscum, E -- New York, N.Y. -- Science. 1999 Oct 29;286(5441):961-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biological Sciences, University of Missouri, Columbia, MO 65211, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10542152" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/genetics/*metabolism ; *Arabidopsis Proteins ; Cell Membrane/metabolism ; Cloning, Molecular ; Escherichia coli ; Molecular Sequence Data ; Phosphoproteins/genetics/*metabolism ; Photoreceptor Cells, Invertebrate/*metabolism ; Phototropism ; Plant Proteins/genetics/*metabolism ; Protein Binding ; Two-Hybrid System Techniques
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    Techview: DNA sequencing. Sequencing the genome, fast (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mullikin, J C -- McMurragy, A A -- New York, N.Y. -- Science. 1999 Mar 19;283(5409):1867-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Sanger Centre, Wellcome Trust Genome Campus, Hinxton, Cambs, UK. jcm@sanger.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10206892" target="_blank"〉PubMed〈/a〉
    Keywords: Automation ; Base Sequence ; Fluorescence ; *Genome, Human ; Human Genome Project ; Humans ; Sequence Analysis, DNA/*instrumentation/methods ; Software
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    UC-Genentech trial (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seeburg, P H -- New York, N.Y. -- Science. 1999 May 28;284(5419):1465-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10383323" target="_blank"〉PubMed〈/a〉
    Keywords: Biotechnology/*legislation & jurisprudence ; California ; Cloning, Molecular ; Genetic Vectors ; *Human Growth Hormone ; Humans ; Patents as Topic/*legislation & jurisprudence ; Periodicals as Topic ; Plasmids ; Publishing ; Universities/*legislation & jurisprudence
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    EIN2, a bifunctional transducer of ethylene and stress responses in Arabidopsis (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: Ethylene regulates plant growth, development, and responsiveness to a variety of stresses. Cloning of the Arabidopsis EIN2 gene identifies a central component of the ethylene signaling pathway. The amino-terminal integral membrane domain of EIN2 shows similarity to the disease-related Nramp family of metal-ion transporters. Expression of the EIN2 CEND is sufficient to constitutively activate ethylene responses and restores responsiveness to jasmonic acid and paraquat-induced oxygen radicals to mutant plants. EIN2 is thus recognized as a molecular link between previously distinct hormone response pathways. Plants may use a combinatorial mechanism for assessing various stresses by enlisting a common set of signaling molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alonso, J M -- Hirayama, T -- Roman, G -- Nourizadeh, S -- Ecker, J R -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2148-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Plant Science Institute, Department of Biology, University of Pennsylvania, Philadelphia, PA 19104-6018, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10381874" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/chemistry/genetics/growth & development/*physiology ; *Arabidopsis Proteins ; Carrier Proteins/chemistry ; *Cation Transport Proteins ; Cloning, Molecular ; Cyclopentanes/metabolism/pharmacology ; *Defensins ; Ethylenes/*metabolism/pharmacology ; Gene Expression Regulation, Plant ; Genes, Plant ; Genetic Complementation Test ; Herbicides/pharmacology ; *Iron-Binding Proteins ; Membrane Proteins/chemistry/genetics/*physiology ; Microsomes/metabolism ; Molecular Sequence Data ; Mutation ; Nuclear Proteins/physiology ; Oxylipins ; Paraquat/pharmacology ; Plant Growth Regulators/*metabolism/pharmacology ; Plant Proteins/chemistry/genetics/*physiology ; Plants, Genetically Modified ; Protein Biosynthesis ; Protein Structure, Secondary ; Receptors, Cell Surface/chemistry/genetics/*physiology ; *Signal Transduction ; *Transcription Factors
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    An adhesin of the yeast pathogen Candida glabrata mediating adherence to human epithelial cells (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-27
    Description: Candida glabrata is an important fungal pathogen of humans that is responsible for about 15 percent of mucosal and systemic candidiasis. Candida glabrata adhered avidly to human epithelial cells in culture. By means of a genetic approach and a strategy allowing parallel screening of mutants, it was possible to clone a lectin from a Candida species. Deletion of this adhesin reduced adherence of C. glabrata to human epithelial cells by 95 percent. The adhesin, encoded by the EPA1 gene, is likely a glucan-cross-linked cell-wall protein and binds to host-cell carbohydrate, specifically recognizing asialo-lactosyl-containing carbohydrates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cormack, B P -- Ghori, N -- Falkow, S -- New York, N.Y. -- Science. 1999 Jul 23;285(5427):578-82.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, Stanford University School of Medicine, Fairchild D039, 299 Campus Drive, Stanford, CA 94305-5124, USA. bcormack@jhmi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10417386" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Calcium/metabolism ; Candida/*genetics/*pathogenicity/physiology ; Candidiasis, Vulvovaginal/microbiology ; Carbohydrates/pharmacology ; Cell Adhesion ; Cloning, Molecular ; Epithelial Cells/*microbiology ; Female ; *Fungal Proteins ; Genes, Fungal ; Humans ; Lectins/chemistry/*genetics/metabolism ; Ligands ; Mice ; Mice, Inbred DBA ; Molecular Sequence Data ; Mutagenesis, Insertional ; Mutation ; Plasmids ; Polymerase Chain Reaction ; Transformation, Genetic ; Tumor Cells, Cultured ; Virulence/genetics
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    Isolation of West Nile virus from mosquitoes, crows, and a Cooper's hawk in Connecticut (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-22
    Description: West Nile (WN) virus, a mosquito-transmitted virus native to Africa, Asia, and Europe, was isolated from two species of mosquitoes, Culex pipiens and Aedes vexans, and from brain tissues of 28 American crows, Corvus brachyrhynchos, and one Cooper's hawk, Accipiter cooperii, in Connecticut. A portion of the genome of virus isolates from four different hosts was sequenced and analyzed by comparative phylogenetic analysis. Our isolates from Connecticut were similar to one another and most closely related to two WN isolates from Romania (2.8 and 3.6 percent difference). If established in North America, WN virus will likely have severe effects on human health and on the health of populations of birds.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, J F -- Andreadis, T G -- Vossbrinck, C R -- Tirrell, S -- Wakem, E M -- French, R A -- Garmendia, A E -- Van Kruiningen, H J -- P01-AI-30548/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1999 Dec 17;286(5448):2331-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology, Department of Soil and Water, the Connecticut Agricultural Experiment Station, Post Office Box 1106, New Haven, CT 06504, USA. john.f.anderson@po.state.ct.us〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10600741" target="_blank"〉PubMed〈/a〉
    Keywords: Aedes/virology ; Animals ; Base Sequence ; Bird Diseases/epidemiology/*virology ; Brain/*virology ; Connecticut/epidemiology ; Culex/virology ; Culicidae/*virology ; Genome, Viral ; Humans ; Insect Vectors/*virology ; Phylogeny ; Raptors/virology ; Romania ; Songbirds/virology ; West Nile Fever/epidemiology/*veterinary/virology ; West Nile virus/classification/genetics/*isolation & purification
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    Homeotic transformation of rhombomere identity after localized Hoxb1 misexpression (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: Segmentation of the hindbrain and branchial region is a conserved feature of head development, involving the nested expression of Hox genes. Although it is presumed that vertebrate Hox genes function as segment identifiers, responsible for mediating registration between elements of diverse embryonic origin, this assumption has remained untested. To assess this, retroviral misexpression was combined with orthotopic grafting in chick embryos to generate a mismatch in Hox coding between a specific rhombomere and its corresponding branchial arch. Rhombomere-restricted misexpression of a single gene, Hoxb1, resulted in the homeotic transformation of the rhombomere, revealed by reorganization of motor axon projections.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bell, E -- Wingate, R J -- Lumsden, A -- N01-HD-7-3263/HD/NICHD NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2168-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Neurobiology, King's College London, Guy's Hospital, London SE1 9RT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10381880" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/physiology ; Branchial Region/*embryology/innervation/metabolism ; Cell Differentiation ; Cell Movement ; Chick Embryo ; Cloning, Molecular ; DNA-Binding Proteins/genetics ; GATA2 Transcription Factor ; *Gene Expression Regulation, Developmental ; *Genes, Homeobox ; Genetic Vectors ; Homeodomain Proteins/*genetics/physiology ; Membrane Glycoproteins/genetics ; Motor Neurons/cytology/physiology ; Rhombencephalon/*embryology/metabolism/transplantation ; Transcription Factors/genetics
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    SPA1, a WD-repeat protein specific to phytochrome A signal transduction (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-16
    Description: The five members of the phytochrome photoreceptor family of Arabidopsis thaliana control morphogenesis differentially in response to light. Genetic analysis has identified a signaling pathway that is specifically activated by phytochrome A. A component in this pathway, SPA1 (for "suppressor of phyA-105"), functions in repression of photomorphogenesis and is required for normal photosensory specificity of phytochrome A. Molecular cloning of the SPA1 gene indicates that SPA1 is a WD (tryptophan-aspartic acid)-repeat protein that also shares sequence similarity with protein kinases. SPA1 can localize to the nucleus, suggesting a possible function in phytochrome A-specific regulation of gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoecker, U -- Tepperman, J M -- Quail, P H -- GM-47475/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Apr 16;284(5413):496-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10205059" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/genetics/growth & development/*metabolism ; *Arabidopsis Proteins ; Cell Cycle Proteins/*chemistry/*physiology ; Cell Nucleus/metabolism ; Cloning, Molecular ; Darkness ; Gene Expression Regulation, Plant ; *Light ; Molecular Sequence Data ; Morphogenesis ; Mutation ; Nuclear Localization Signals ; Phytochrome/*metabolism ; Phytochrome A ; Plant Proteins/*chemistry/genetics/physiology ; Protein Kinases/chemistry ; RNA, Messenger/genetics/metabolism ; Repetitive Sequences, Amino Acid ; Repressor Proteins/chemistry ; Sequence Alignment ; *Signal Transduction
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    Novel endotheliotropic herpesviruses fatal for Asian and African elephants (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-02-19
    Description: A highly fatal hemorrhagic disease has been identified in 10 young Asian and African elephants at North American zoos. In the affected animals there was ultrastructural evidence for herpesvirus-like particles in endothelial cells of the heart, liver, and tongue. Consensus primer polymerase chain reaction combined with sequencing yielded molecular evidence that confirmed the presence of two novel but related herpesviruses associated with the disease, one in Asian elephants and another in African elephants. Otherwise healthy African elephants with external herpetic lesions yielded herpesvirus sequences identical to that found in Asian elephants with endothelial disease. This finding suggests that the Asian elephant deaths were caused by cross-species infection with a herpesvirus that is naturally latent in, but normally not lethal to, African elephants. A reciprocal relationship may exist for the African elephant disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Richman, L K -- Montali, R J -- Garber, R L -- Kennedy, M A -- Lehnhardt, J -- Hildebrandt, T -- Schmitt, D -- Hardy, D -- Alcendor, D J -- Hayward, G S -- 1 K08 AI01526-01/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1999 Feb 19;283(5405):1171-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Smithsonian, National Zoological Park, Washington, DC 20008, USA. lkrichma@welchlink.welch.jhu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10024244" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Amino Acid Sequence ; Animals ; Animals, Zoo/*virology ; Asia ; Base Sequence ; DNA, Viral/genetics ; DNA-Directed DNA Polymerase/chemistry/genetics ; Elephants/*virology ; Endodeoxyribonucleases/chemistry/genetics ; Endothelium, Vascular/pathology/*virology ; Female ; Genes, Viral ; Hemorrhage/pathology/veterinary/virology ; Herpesviridae/classification/genetics/*isolation & purification ; Herpesviridae Infections/pathology/transmission/*veterinary/virology ; Inclusion Bodies, Viral/ultrastructure ; Male ; Molecular Sequence Data ; Phylogeny ; Polymerase Chain Reaction ; United States ; Viral Proteins/genetics
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    A nonhyperthermophilic common ancestor to extant life forms (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-08
    Description: The G+C nucleotide content of ribosomal RNA (rRNA) sequences is strongly correlated with the optimal growth temperature of prokaryotes. This property allows inference of the environmental temperature of the common ancestor to all life forms from knowledge of the G+C content of its rRNA sequences. A model of sequence evolution, assuming varying G+C content among lineages and unequal substitution rates among sites, was devised to estimate ancestral base compositions. This method was applied to rRNA sequences of various species representing the major lineages of life. The inferred G+C content of the common ancestor to extant life forms appears incompatible with survival at high temperature. This finding challenges a widely accepted hypothesis about the origin of life.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Galtier, N -- Tourasse, N -- Gouy, M -- New York, N.Y. -- Science. 1999 Jan 8;283(5399):220-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Biometrie, Genetique et Biologie des Populations, Universite C. Bernard Lyon 1, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9880254" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Composition ; Base Sequence ; Computer Simulation ; Confidence Intervals ; Cytosine/*analysis ; *Evolution, Molecular ; Guanine/*analysis ; Hot Temperature ; Likelihood Functions ; Markov Chains ; Models, Chemical ; *Origin of Life ; Phylogeny ; RNA, Archaeal/chemistry ; RNA, Bacterial/chemistry ; RNA, Ribosomal/*chemistry ; Temperature
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    Beta-secretase cleavage of Alzheimer's amyloid precursor protein by the transmembrane aspartic protease BACE (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-26
    Description: Cerebral deposition of amyloid beta peptide (Abeta) is an early and critical feature of Alzheimer's disease. Abeta generation depends on proteolytic cleavage of the amyloid precursor protein (APP) by two unknown proteases: beta-secretase and gamma-secretase. These proteases are prime therapeutic targets. A transmembrane aspartic protease with all the known characteristics of beta-secretase was cloned and characterized. Overexpression of this protease, termed BACE (for beta-site APP-cleaving enzyme) increased the amount of beta-secretase cleavage products, and these were cleaved exactly and only at known beta-secretase positions. Antisense inhibition of endogenous BACE messenger RNA decreased the amount of beta-secretase cleavage products, and purified BACE protein cleaved APP-derived substrates with the same sequence specificity as beta-secretase. Finally, the expression pattern and subcellular localization of BACE were consistent with that expected for beta-secretase. Future development of BACE inhibitors may prove beneficial for the treatment of Alzheimer's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vassar, R -- Bennett, B D -- Babu-Khan, S -- Kahn, S -- Mendiaz, E A -- Denis, P -- Teplow, D B -- Ross, S -- Amarante, P -- Loeloff, R -- Luo, Y -- Fisher, S -- Fuller, J -- Edenson, S -- Lile, J -- Jarosinski, M A -- Biere, A L -- Curran, E -- Burgess, T -- Louis, J C -- Collins, F -- Treanor, J -- Rogers, G -- Citron, M -- New York, N.Y. -- Science. 1999 Oct 22;286(5440):735-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Amgen, Inc., One Amgen Center Drive, M/S 29-2-B, Thousand Oaks, CA 91320-1799, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10531052" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/drug therapy/*enzymology ; Amino Acid Motifs ; Amino Acid Sequence ; Amyloid Precursor Protein Secretases ; Amyloid beta-Peptides/*biosynthesis ; Amyloid beta-Protein Precursor/*metabolism ; Animals ; Aspartic Acid Endopeptidases/chemistry/genetics/*isolation & ; purification/*metabolism ; Binding Sites ; Brain/enzymology/metabolism ; Cell Line ; Cloning, Molecular ; Endopeptidases ; Endosomes/enzymology ; Gene Expression ; Gene Library ; Golgi Apparatus/enzymology ; Humans ; Hydrogen-Ion Concentration ; Molecular Sequence Data ; Oligonucleotides, Antisense/pharmacology ; Peptides/metabolism ; Protease Inhibitors/pharmacology ; RNA, Messenger/genetics/metabolism ; Recombinant Fusion Proteins/metabolism ; Transfection
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    p53- and ATM-dependent apoptosis induced by telomeres lacking TRF2 (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-02-26
    Description: Although broken chromosomes can induce apoptosis, natural chromosome ends (telomeres) do not trigger this response. It is shown that this suppression of apoptosis involves the telomeric-repeat binding factor 2 (TRF2). Inhibition of TRF2 resulted in apoptosis in a subset of mammalian cell types. The response was mediated by p53 and the ATM (ataxia telangiectasia mutated) kinase, consistent with activation of a DNA damage checkpoint. Apoptosis was not due to rupture of dicentric chromosomes formed by end-to-end fusion, indicating that telomeres lacking TRF2 directly signal apoptosis, possibly because they resemble damaged DNA. Thus, in some cells, telomere shortening may signal cell death rather than senescence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karlseder, J -- Broccoli, D -- Dai, Y -- Hardy, S -- de Lange, T -- GM49046/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Feb 26;283(5406):1321-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory for Cell Biology and Genetics, The Rockefeller University, New York, NY 10021, USA. Cell Genesys, Foster City, CA 94405, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10037601" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviridae/genetics/physiology ; Animals ; *Apoptosis ; Ataxia Telangiectasia/pathology ; Ataxia Telangiectasia Mutated Proteins ; B-Lymphocytes/cytology ; Cell Cycle Proteins ; Cell Line ; Cells, Cultured ; Cloning, Molecular ; DNA Damage ; DNA-Binding Proteins/chemistry/genetics/*physiology ; Genetic Vectors ; Humans ; In Situ Nick-End Labeling ; Mice ; Mitosis ; Phosphorylation ; *Protein-Serine-Threonine Kinases ; Proteins/metabolism ; T-Lymphocytes/cytology ; Telomere/*physiology ; Telomeric Repeat Binding Protein 2 ; Tumor Cells, Cultured ; Tumor Suppressor Protein p53/*metabolism ; Tumor Suppressor Proteins
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 41
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    Stopping DNA replication in its tracks (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cleaver, J E -- New York, N.Y. -- Science. 1999 Jul 9;285(5425):212-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Dermatology and Pharmaceutical Chemistry, UCSF Cancer Center, University of California, San Francisco, CA 94143-0808, USA. jcleaver@cc.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10428720" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular ; DNA Damage ; DNA Repair ; *DNA Replication ; DNA-Binding Proteins ; DNA-Directed DNA Polymerase/*genetics/metabolism ; Humans ; Mutation ; Pyrimidine Dimers/metabolism ; Ultraviolet Rays ; Xeroderma Pigmentosum/*genetics/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 42
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    Origin of the West Nile virus responsible for an outbreak of encephalitis in the northeastern United States (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-22
    Description: In late summer 1999, an outbreak of human encephalitis occurred in the northeastern United States that was concurrent with extensive mortality in crows (Corvus species) as well as the deaths of several exotic birds at a zoological park in the same area. Complete genome sequencing of a flavivirus isolated from the brain of a dead Chilean flamingo (Phoenicopterus chilensis), together with partial sequence analysis of envelope glycoprotein (E-glycoprotein) genes amplified from several other species including mosquitoes and two fatal human cases, revealed that West Nile (WN) virus circulated in natural transmission cycles and was responsible for the human disease. Antigenic mapping with E-glycoprotein-specific monoclonal antibodies and E-glycoprotein phylogenetic analysis confirmed these viruses as WN. This North American WN virus was most closely related to a WN virus isolated from a dead goose in Israel in 1998.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lanciotti, R S -- Roehrig, J T -- Deubel, V -- Smith, J -- Parker, M -- Steele, K -- Crise, B -- Volpe, K E -- Crabtree, M B -- Scherret, J H -- Hall, R A -- MacKenzie, J S -- Cropp, C B -- Panigrahy, B -- Ostlund, E -- Schmitt, B -- Malkinson, M -- Banet, C -- Weissman, J -- Komar, N -- Savage, H M -- Stone, W -- McNamara, T -- Gubler, D J -- New York, N.Y. -- Science. 1999 Dec 17;286(5448):2333-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Vector-Borne Infectious Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Fort Collins, CO 80522, USA. rsl2@cdc.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10600742" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/immunology ; Antibodies, Viral/immunology ; Base Sequence ; Bird Diseases/epidemiology/virology ; Birds/virology ; *Disease Outbreaks ; Encephalitis Viruses, Japanese/classification/genetics ; Fluorescent Antibody Technique, Indirect ; Genome, Viral ; Humans ; Molecular Sequence Data ; New England/epidemiology ; New York City/epidemiology ; Phylogeny ; Songbirds/virology ; Viral Envelope Proteins/chemistry/genetics/immunology ; West Nile Fever/*epidemiology/veterinary/*virology ; West Nile virus/*classification/*genetics/immunology/isolation & purification
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 43
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    Crystal structure of a conserved ribosomal protein-RNA complex (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-15
    Description: The structure of a highly conserved complex between a 58-nucleotide domain of large subunit ribosomal RNA and the RNA-binding domain of ribosomal protein L11 has been solved at 2.8 angstrom resolution. It reveals a precisely folded RNA structure that is stabilized by extensive tertiary contacts and contains an unusually large core of stacked bases. A bulge loop base from one hairpin of the RNA is intercalated into the distorted major groove of another helix; the protein locks this tertiary interaction into place by binding to the intercalated base from the minor groove side. This direct interaction with a key ribosomal RNA tertiary interaction suggests that part of the role of L11 is to stabilize an unusual RNA fold within the ribosome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Conn, G L -- Draper, D E -- Lattman, E E -- Gittis, A G -- R37 GM29048/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 May 14;284(5417):1171-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10325228" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Proteins/chemistry/metabolism ; Base Pairing ; Base Sequence ; Binding Sites ; Crystallography, X-Ray ; Hydrogen Bonding ; Models, Molecular ; Molecular Sequence Data ; *Nucleic Acid Conformation ; Peptide Elongation Factor G ; Peptide Elongation Factors/metabolism ; Phylogeny ; Protein Conformation ; RNA, Bacterial/*chemistry/metabolism ; RNA, Ribosomal/*chemistry/metabolism ; Ribosomal Proteins/*chemistry/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 44
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    New leads to cancer, arthritis therapies (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hagmann, M -- New York, N.Y. -- Science. 1999 Jun 4;284(5420):1600-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10383332" target="_blank"〉PubMed〈/a〉
    Keywords: ADAM Proteins ; Animals ; Antineoplastic Agents ; Antirheumatic Agents ; Arthritis/*drug therapy ; Binding Sites ; Cloning, Molecular ; Enzyme Precursors/chemistry/metabolism ; Gelatinases/antagonists & inhibitors/*chemistry/metabolism ; Humans ; Matrix Metalloproteinase 2 ; Metalloendopeptidases/antagonists & inhibitors/*chemistry/genetics/metabolism ; Mice ; Models, Molecular ; Neoplasms/*drug therapy ; Procollagen N-Endopeptidase ; Protease Inhibitors/*pharmacology ; Protein Conformation ; Protein Structure, Secondary
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  • 45
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    Receptor for motilin identified in the human gastrointestinal system (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: Motilin is a 22-amino acid peptide hormone expressed throughout the gastrointestinal (GI) tract of humans and other species. It affects gastric motility by stimulating interdigestive antrum and duodenal contractions. A heterotrimeric guanosine triphosphate-binding protein (G protein)-coupled receptor for motilin was isolated from human stomach, and its amino acid sequence was found to be 52 percent identical to the human receptor for growth hormone secretagogues. The macrolide antibiotic erythromycin also interacted with the cloned motilin receptor, providing a molecular basis for its effects on the human GI tract. The motilin receptor is expressed in enteric neurons of the human duodenum and colon. Development of motilin receptor agonists and antagonists may be useful in the treatment of multiple disorders of GI motility.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feighner, S D -- Tan, C P -- McKee, K K -- Palyha, O C -- Hreniuk, D L -- Pong, S S -- Austin, C P -- Figueroa, D -- MacNeil, D -- Cascieri, M A -- Nargund, R -- Bakshi, R -- Abramovitz, M -- Stocco, R -- Kargman, S -- O'Neill, G -- Van Der Ploeg, L H -- Evans, J -- Patchett, A A -- Smith, R G -- Howard, A D -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2184-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Metabolic Disorders, Department of Medicinal Chemistry, Merck Research Laboratories, Building RY-80Y-265, 126 East Lincoln Avenue, Rahway, NJ 07065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10381885" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Amino Acid Sequence ; Base Sequence ; Binding Sites ; Calcium/metabolism ; Cell Line ; Chromosome Mapping ; Chromosomes, Human, Pair 13 ; Cloning, Molecular ; Colon/*metabolism ; Erythromycin/metabolism ; GTP-Binding Proteins/metabolism ; Humans ; In Situ Hybridization ; Intestine, Small/*metabolism ; Ligands ; Molecular Sequence Data ; Motilin/analogs & derivatives/*metabolism ; Receptors, Gastrointestinal Hormone/*chemistry/*genetics/metabolism ; Receptors, Neuropeptide/*chemistry/*genetics/metabolism ; Stomach/*metabolism ; Thyroid Gland/metabolism ; Transfection
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  • 46
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    Similarity of the C. elegans developmental timing protein LIN-42 to circadian rhythm proteins (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-05
    Description: The Caenorhabditis elegans heterochronic genes control the relative timing and sequence of many events during postembryonic development, including the terminal differentiation of the lateral hypodermis, which occurs during the final (fourth) molt. Inactivation of the heterochronic gene lin-42 causes hypodermal terminal differentiation to occur precociously, during the third molt. LIN-42 most closely resembles the Period family of proteins from Drosophila and other organisms, proteins that function in another type of biological timing mechanism: the timing of circadian rhythms. Per mRNA levels oscillate with an approximately 24-hour periodicity. lin-42 mRNA levels also oscillate, but with a faster rhythm; the oscillation occurs relative to the approximately 6-hour molting cycles of postembryonic development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jeon, M -- Gardner, H F -- Miller, E A -- Deshler, J -- Rougvie, A E -- GM50227/GM/NIGMS NIH HHS/ -- HD007480/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1999 Nov 5;286(5442):1141-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, St. Paul, MN 55108, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10550049" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Animals ; Caenorhabditis elegans/*chemistry/genetics/growth & development ; *Caenorhabditis elegans Proteins ; Cell Cycle Proteins ; Cell Differentiation ; *Circadian Rhythm ; Cloning, Molecular ; *Drosophila Proteins ; Evolution, Molecular ; Exons ; Genes, Helminth ; Helminth Proteins/*chemistry/*genetics/physiology ; Humans ; Insect Proteins/chemistry/genetics ; Intracellular Signaling Peptides and Proteins ; Molecular Sequence Data ; Molting ; Mutation ; Nuclear Proteins/chemistry/genetics/physiology ; Period Circadian Proteins ; RNA, Helminth/genetics/metabolism ; RNA, Messenger/genetics/metabolism ; Repetitive Sequences, Amino Acid ; Sequence Alignment ; Transcription Factors/chemistry/genetics
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  • 47
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    Extensive nuclear DNA sequence diversity among chimpanzees (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-05
    Description: Although data on nucleotide sequence variation in the human nuclear genome have begun to accumulate, little is known about genomic diversity in chimpanzees (Pan troglodytes) and bonobos (Pan paniscus). A 10,154-base pair sequence on the chimpanzee X chromosome is reported, representing all major subspecies and bonobos. Comparison to humans shows the diversity of the chimpanzee sequences to be almost four times as high and the age of the most recent common ancestor three times as great as the corresponding values of humans. Phylogenetic analyses show the sequences from the different chimpanzee subspecies to be intermixed and the distance between some chimpanzee sequences to be greater than the distance between them and the bonobo sequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaessmann, H -- Wiebe, V -- Paabo, S -- New York, N.Y. -- Science. 1999 Nov 5;286(5442):1159-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institute for Evolutionary Anthropology, Inselstrasse 22, D-04103 Leipzig, Germany. kaessmann@eva.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10550054" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA/*genetics ; *Genetic Variation ; *Genome ; Gorilla gorilla/genetics ; Humans ; Molecular Sequence Data ; Mutation ; Pan paniscus/classification/*genetics ; Pan troglodytes/classification/*genetics ; Phylogeny ; Recombination, Genetic ; Species Specificity ; X Chromosome/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 48
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    Generation of a widespread Drosophila inversion by a transposable element (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-20
    Description: Although polymorphic inversions in Drosophila are very common, the origin of these chromosomal rearrangements is unclear. The breakpoints of the cosmopolitan inversion 2j of D. buzzatii were cloned and sequenced. Both breakpoints contain large insertions corresponding to a transposable element. It appears that the two pairs of target site duplications generated upon insertion were exchanged during the inversion event, and that the inversion arose by ectopic recombination between two copies of the transposon that were in opposite orientations. This is apparently the mechanism by which transposable elements generate natural inversions in Drosophila.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Caceres, M -- Ranz, J M -- Barbadilla, A -- Long, M -- Ruiz, A -- New York, N.Y. -- Science. 1999 Jul 16;285(5426):415-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departament de Genetica i de Microbiologia, Universitat Autonoma de Barcelona, 08193 Bellaterra (Barcelona), Spain. mariocs@cc.uab.es〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10411506" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Chromosome Inversion ; Cloning, Molecular ; *DNA Transposable Elements ; DNA, Complementary ; Drosophila/*genetics ; Gene Expression ; Genes, Insect ; In Situ Hybridization ; Models, Genetic ; Open Reading Frames ; Polymerase Chain Reaction ; Recombination, Genetic ; Sequence Alignment
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  • 49
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    Protein interaction mapping in C. elegans using proteins involved in vulval development (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-30
    Description: Protein interaction mapping using large-scale two-hybrid analysis has been proposed as a way to functionally annotate large numbers of uncharacterized proteins predicted by complete genome sequences. This approach was examined in Caenorhabditis elegans, starting with 27 proteins involved in vulval development. The resulting map reveals both known and new potential interactions and provides a functional annotation for approximately 100 uncharacterized gene products. A protein interaction mapping project is now feasible for C. elegans on a genome-wide scale and should contribute to the understanding of molecular mechanisms in this organism and in human diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walhout, A J -- Sordella, R -- Lu, X -- Hartley, J L -- Temple, G F -- Brasch, M A -- Thierry-Mieg, N -- Vidal, M -- 1 R21 CA81658 A 01/CA/NCI NIH HHS/ -- 1 RO1 HG01715-01/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2000 Jan 7;287(5450):116-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Massachusetts General Hospital Cancer Center, Charlestown, MA 02129, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10615043" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caenorhabditis elegans/*genetics/growth & development/*metabolism ; *Caenorhabditis elegans Proteins ; Cloning, Molecular ; Databases, Factual ; Female ; Genes, Helminth ; Genetic Vectors ; *Genome ; Helminth Proteins/*genetics/*metabolism ; Mutation ; Open Reading Frames ; Phenotype ; Repressor Proteins/genetics/metabolism ; Retinoblastoma Protein/genetics/metabolism ; *Two-Hybrid System Techniques ; Vulva/growth & development
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