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  • Cloning, Molecular  (268)
  • *Biological Evolution
  • American Association for the Advancement of Science (AAAS)  (441)
  • American Meteorological Society
  • MDPI Publishing
  • 1995-1999  (441)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (441)
  • American Meteorological Society
  • MDPI Publishing
Years
Year
  • 1
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    The handy-dandy kitchen device (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abramson, P R -- Pinkerton, S D -- New York, N.Y. -- Science. 1998 Dec 11;282(5396):1993-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9874650" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anura/*genetics/physiology ; *Biological Evolution ; Male ; Selection, Genetic ; *Sexual Behavior, Animal ; *Vocalization, Animal
    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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    Diminishing returns from mutation supply rate in asexual populations (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-15
    Description: Mutator genotypes with increased mutation rates may be especially important in microbial evolution if genetic adaptation is generally limited by the supply of mutations. In experimental populations of the bacterium Escherichia coli, the rate of evolutionary adaptation was proportional to the mutation supply rate only in particular circumstances of small or initially well-adapted populations. These experiments also demonstrate a "speed limit" on adaptive evolution in asexual populations, one that is independent of the mutation supply rate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arjan, J A -- Visser, M -- Zeyl, C W -- Gerrish, P J -- Blanchard, J L -- Lenski, R E -- New York, N.Y. -- Science. 1999 Jan 15;283(5400):404-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Microbial Ecology, Michigan State University, East Lansing, MI 48824, USA. arjan.devisser@algemeen.micr.wau.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9888858" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; *Biological Evolution ; Escherichia coli/*genetics/physiology ; Genetics, Population ; Genotype ; Linear Models ; *Models, Biological ; *Mutation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Test tube evolution catches time in a bottle (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Appenzeller, T -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2108-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10409068" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; *Biological Evolution ; Culture Media ; *Ecosystem ; Escherichia coli/*genetics/physiology ; Glucose/metabolism ; Maltose/metabolism ; *Mutation ; Pseudomonas fluorescens/*genetics/physiology ; Selection, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Science and scripture (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Whitehead, F -- New York, N.Y. -- Science. 1999 Oct 22;286(5440):681.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577223" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Education/legislation & jurisprudence/standards ; Kansas ; *Politics ; Religion and Science ; Science/*education
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    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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  • 6
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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
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    A new human ancestor? (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Culotta, E -- New York, N.Y. -- Science. 1999 Apr 23;284(5414):572-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10328732" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Ethiopia ; Facial Bones/anatomy & histology ; *Fossils ; History, Ancient ; *Hominidae/anatomy & histology/classification ; Humans ; Paleodontology ; Skull/anatomy & histology ; Tooth/anatomy & histology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Population biology, evolution, and infectious disease: convergence and synthesis (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-02-05
    Description: Traditionally, the interest of population and evolutionary biologists in infectious diseases has been almost exclusively in their role as agents of natural selection in higher organisms. Recently, this interest has expanded to include the genetic structure and evolution of microparasite populations, the mechanisms of pathogenesis and the immune response, and the population biology, ecology, and evolutionary consequences of medical and public health interventions. This article describes recent work in these areas, emphasizing the ways in which quantitative, population-biological approaches have been contributing to the understanding of infectious disease and the design and evaluation of interventions for their treatment and prevention.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levin, B R -- Lipsitch, M -- Bonhoeffer, S -- New York, N.Y. -- Science. 1999 Feb 5;283(5403):806-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Emory University, 1510 Clifton Road, Atlanta, GA 30322, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9933155" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Physiological Phenomena ; *Biological Evolution ; Drug Resistance, Microbial ; Humans ; Infection/immunology/*microbiology ; Molecular Epidemiology ; Parasites/genetics/physiology ; Parasitic Diseases/immunology/*parasitology ; Population Dynamics ; Vaccination ; Virus Physiological Phenomena
    Print ISSN: 0036-8075
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  • 9
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    Science and "truth" (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-08-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wojcik, J F -- New York, N.Y. -- Science. 1999 Jul 30;285(5428):663.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10454918" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Humans ; *Religion and Science
    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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  • 10
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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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  • 11
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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
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 12
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    Kansas evolution ruling (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, H -- New York, N.Y. -- Science. 1999 Sep 17;285(5435):1849.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10515786" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Biology/education ; Kansas ; Science/*education ; Universities/standards
    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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  • 13
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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
    Print ISSN: 0036-8075
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  • 14
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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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  • 15
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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
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  • 16
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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
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  • 17
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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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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Complexity, pattern, and evolutionary trade-offs in animal aggregation (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-02
    Description: One of the most striking patterns in biology is the formation of animal aggregations. Classically, aggregation has been viewed as an evolutionarily advantageous state, in which members derive the benefits of protection, mate choice, and centralized information, balanced by the costs of limiting resources. Consisting of individual members, aggregations nevertheless function as an integrated whole, displaying a complex set of behaviors not possible at the level of the individual organism. Complexity theory indicates that large populations of units can self-organize into aggregations that generate pattern, store information, and engage in collective decision-making. This begs the question, are all emergent properties of animal aggregations functional or are some simply pattern? Solutions to this dilemma will necessitate a closer marriage of theoretical and modeling studies linked to empirical work addressing the choices, and trajectories, of individuals constrained by membership in the group.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parrish, J K -- Edelstein-Keshet, L -- New York, N.Y. -- Science. 1999 Apr 2;284(5411):99-101.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Zoology Department, University of Washington, Seattle, WA 98195, USA. jparrish@u.washington.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10102827" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; *Biological Evolution ; *Cooperative Behavior ; Mathematics ; Models, Biological
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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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  • 20
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    The evolution of species interactions (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: Interactions between species are as evolutionarily malleable as the species themselves and have played a central role in the diversification and organization of life. This malleability creates complex geographic mosaics in interspecific interactions that can evolve rapidly over decades, blurring the distinction between evolutionary time and ecological time and making the study of coevolution crucial for human health and welfare.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thompson, J N -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2116-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Botany and Zoology, Washington State University, Pullman, WA 99164, USA. jnt@wsu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10381869" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Drug Resistance, Microbial ; *Ecosystem ; Humans ; Models, Biological ; Parasites/pathogenicity ; *Selection, Genetic ; Virulence/genetics
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  • 21
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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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  • 22
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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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    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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    Genomes reveal kin connections for whales and pumas (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2081.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10409061" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Artiodactyla/*genetics ; *Biological Evolution ; Carnivora/classification/*genetics ; Short Interspersed Nucleotide Elements ; Whales/*genetics
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    Evolution flies (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dusenbery, D B -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):413-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577200" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Genetic Variation
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  • 26
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    Paleoanthropology. Kenyan skeleton shakes ape family tree (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zimmer, C -- New York, N.Y. -- Science. 1999 Aug 27;285(5432):1335, 1337.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10490402" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Bone and Bones/anatomy & histology ; *Fossils ; History, Ancient ; Hominidae/anatomy & histology/*classification ; Humans ; Kenya ; Paleodontology ; Skeleton ; Terminology as Topic
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  • 27
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    Is it time to uproot the tree of life? (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1999 May 21;284(5418):1305-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10383313" target="_blank"〉PubMed〈/a〉
    Keywords: Archaea/classification/*genetics ; Bacteria/classification/*genetics ; *Biological Evolution ; *Eukaryotic Cells ; Evolution, Molecular ; Genes, rRNA ; *Genome ; *Phylogeny ; Recombination, Genetic
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  • 28
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    From embryos and fossils, new clues to vertebrate evolution (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1999 Apr 23;284(5414):575, 577.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10328733" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Fishes/anatomy & histology ; *Fossils ; Jaw/*anatomy & histology ; Neural Crest/cytology/physiology ; *Vertebrates/anatomy & histology
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  • 29
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    Neandertals: not so fast (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolpoff, M H -- New York, N.Y. -- Science. 1998 Dec 11;282(5396):1991.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9874646" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; DNA, Mitochondrial/*genetics ; Evolution, Molecular ; Gene Frequency ; Hominidae/*genetics ; Humans ; Mutation ; Phylogeny ; Selection, Genetic
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  • 30
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    Fending off furtive strategists (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hanson, R B -- Bloom, F -- New York, N.Y. -- Science. 1999 Sep 17;285(5435):1847.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10515785" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Kansas ; Politics ; Religion and Science ; Science/*education
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  • 31
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    Genetic study shakes up out of Africa theory (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1999 Mar 19;283(5409):1828.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10206882" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; *Biological Evolution ; Evolution, Molecular ; Haplotypes ; *Hominidae/genetics ; Humans ; Mutation ; *Pyruvate Dehydrogenase (Lipoamide) ; Pyruvate Dehydrogenase Complex/genetics ; X Chromosome
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  • 32
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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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  • 33
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    The future of the fossil record (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: The fossil record provides a powerful basis for analyzing the controlling factors and impact of biological evolution over a wide range of temporal and spatial scales and in the context of an evolving Earth. An increasingly interdisciplinary paleontology has begun to formulate the next generation of questions, drawing on a wealth of new data, and on methodological advances ranging from high-resolution geochronology to simulation of morphological evolution. Key issues related to evolutionary biology include the biotic and physical factors that govern biodiversity dynamics, the developmental and ecological basis for the nonrandom introduction of evolutionary innovations in time and space, rules of biotic response to environmental perturbations, and the dynamic feedbacks between life and the Earth's surface processes. The sensitivity of evolutionary processes to rates, magnitudes, and spatial scales of change in the physical and biotic environment will be important in all these areas.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jablonski, D -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2114-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geophysical Sciences, University of Chicago 5734 South Ellis Avenue Chicago, IL 60637, USA. djablons@midway.uchicago.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10381868" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Ecosystem ; *Fossils ; *Paleontology
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  • 34
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    Silent scientists (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pruett, S B -- New York, N.Y. -- Science. 1999 Oct 29;286(5441):902-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577240" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Curriculum ; Kansas ; *Religion and Science ; Science/*education ; Teaching
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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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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    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
    Print ISSN: 0036-8075
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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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    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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    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
    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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    Phylogenetic classification and the universal tree (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: From comparative analyses of the nucleotide sequences of genes encoding ribosomal RNAs and several proteins, molecular phylogeneticists have constructed a "universal tree of life," taking it as the basis for a "natural" hierarchical classification of all living things. Although confidence in some of the tree's early branches has recently been shaken, new approaches could still resolve many methodological uncertainties. More challenging is evidence that most archaeal and bacterial genomes (and the inferred ancestral eukaryotic nuclear genome) contain genes from multiple sources. If "chimerism" or "lateral gene transfer" cannot be dismissed as trivial in extent or limited to special categories of genes, then no hierarchical universal classification can be taken as natural. Molecular phylogeneticists will have failed to find the "true tree," not because their methods are inadequate or because they have chosen the wrong genes, but because the history of life cannot properly be represented as a tree. However, taxonomies based on molecular sequences will remain indispensable, and understanding of the evolutionary process will ultimately be enriched, not impoverished.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Doolittle, W F -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2124-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Canadian Institute for Advanced Research, Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia B3H 4H7, Canada. ford@is.dal.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10381871" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Archaea/*classification/genetics ; Bacteria/*classification/genetics ; *Biological Evolution ; Eukaryotic Cells/*classification ; Genes, rRNA ; Genome ; *Phylogeny ; RNA, Ribosomal/chemistry/genetics ; *Recombination, Genetic
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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
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    Gaining new insight into the molecular basis of evolution (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-08-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1999 Jul 30;285(5428):654-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10454913" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Substitution ; Animals ; *Biological Evolution ; *Evolution, Molecular ; Fishes/*genetics/physiology ; Mutation ; Rhodopsin/chemistry/*genetics/physiology ; *Selection, Genetic ; Vision, Ocular
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    Development shapes evolution (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-08-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1999 Jul 23;285(5427):518-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10447480" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Cervical Vertebrae/*anatomy & histology ; Cockroaches/genetics/*physiology ; Genes, Homeobox ; Humans ; Mammals/*anatomy & histology/embryology ; Mutation ; Neoplasms/genetics ; *Parthenogenesis ; Reactive Oxygen Species
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    Evolving smarts (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duke, J A -- New York, N.Y. -- Science. 1999 Apr 23;284(5414):589.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10328736" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Brain ; Cooking ; Estrogens, Non-Steroidal/*analysis ; Female ; *Hominidae ; Humans ; *Isoflavones ; Male ; Phytoestrogens ; Plant Preparations ; *Vegetables/chemistry
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    Kansas dumps Darwin, raises alarm across the United States (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1999 Aug 20;285(5431):1186-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10484724" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Curriculum ; Kansas ; Religion and Science ; Science/*education ; United States
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    DNA and field data help plumb evolution's secrets (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1999 Jul 9;285(5425):192-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10428714" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Female ; Genes, Recessive ; Genetic Variation ; Inbreeding ; Male ; Moths/genetics/physiology ; Plants/genetics ; Songbirds/genetics/physiology
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    Science and "truth" (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-08-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Touryan, K J -- New York, N.Y. -- Science. 1999 Jul 30;285(5428):663.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10454917" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Humans ; *Science
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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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    Archean molecular fossils and the early rise of eukaryotes (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-08-14
    Description: Molecular fossils of biological lipids are preserved in 2700-million-year-old shales from the Pilbara Craton, Australia. Sequential extraction of adjacent samples shows that these hydrocarbon biomarkers are indigenous and syngenetic to the Archean shales, greatly extending the known geological range of such molecules. The presence of abundant 2alpha-methylhopanes, which are characteristic of cyanobacteria, indicates that oxygenic photosynthesis evolved well before the atmosphere became oxidizing. The presence of steranes, particularly cholestane and its 28- to 30-carbon analogs, provides persuasive evidence for the existence of eukaryotes 500 million to 1 billion years before the extant fossil record indicates that the lineage arose.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brocks, J J -- Logan, G A -- Buick, R -- Summons, R E -- New York, N.Y. -- Science. 1999 Aug 13;285(5430):1033-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Geosciences, University of Sydney, Sydney, NSW 2006, Australia. jochen.brocks@agso.gov.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10446042" target="_blank"〉PubMed〈/a〉
    Keywords: Atmosphere ; Australia ; *Biological Evolution ; Biomarkers/analysis ; Cholestanes/analysis ; Cyanobacteria/physiology ; Eukaryotic Cells/*physiology ; Fossils ; Geologic Sediments/*chemistry ; Hydrocarbons/*analysis ; Lipids/*analysis ; Paleontology ; Photosynthesis ; Steroids/*analysis ; Triterpenes/*analysis
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    Turtle origins (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-03-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rieppel, O -- New York, N.Y. -- Science. 1999 Feb 12;283(5404):945-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geology, The Foeld Museum, Chicago, IL 60605-2496, USA. rieppel@fmppr.fmnh.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10075558" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; DNA/genetics ; Phylogeny ; Reptiles/anatomy & histology/classification/genetics ; Turtles/anatomy & histology/*classification/*genetics
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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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    Science and scripture (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brosnan-Watters, G -- New York, N.Y. -- Science. 1999 Oct 22;286(5440):681.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577221" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Kansas ; *Religion and Science ; Science/*education
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Clonal interference and the evolution of RNA viruses (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-11
    Description: In asexual populations, beneficial mutations that occur in different lineages compete with one another. This phenomenon, known as clonal interference, ensures that those beneficial mutations that do achieve fixation are of large effect. Clonal interference also increases the time between fixations, thereby slowing the adaptation of asexual populations. The effects of clonal interference were measured in the asexual RNA virus vesicular stomatitis virus; rates and average effects of beneficial mutations were quantified.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miralles, R -- Gerrish, P J -- Moya, A -- Elena, S F -- New York, N.Y. -- Science. 1999 Sep 10;285(5434):1745-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut Cavanilles de Biodiversitat i Biologia Evolutiva and Departament de Genetica, Universitat de Valencia, Apartado 22085, 46071 Valencia, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10481012" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Animals ; *Biological Evolution ; Cell Line ; Confidence Intervals ; Cricetinae ; Gene Frequency ; Genes, Viral ; Likelihood Functions ; Models, Biological ; Models, Statistical ; *Mutation ; Vesicular stomatitis Indiana virus/genetics/*physiology ; Virus Replication
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    Going beyond appearances to find life's history (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, G -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2112-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10409070" target="_blank"〉PubMed〈/a〉
    Keywords: *Bacteria ; *Biological Evolution ; *Eukaryotic Cells ; *Fossils ; Geologic Sediments/*microbiology ; Hydrocarbons/analysis ; Isotopes ; Magnetic Resonance Spectroscopy ; X-Rays
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    Science and scripture (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moore, J W -- New York, N.Y. -- Science. 1999 Oct 22;286(5440):681.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577222" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Kansas ; *Politics ; *Religion and Science ; Science/*education
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    Mitochondrial evolution (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-03-05
    Description: The serial endosymbiosis theory is a favored model for explaining the origin of mitochondria, a defining event in the evolution of eukaryotic cells. As usually described, this theory posits that mitochondria are the direct descendants of a bacterial endosymbiont that became established at an early stage in a nucleus-containing (but amitochondriate) host cell. Gene sequence data strongly support a monophyletic origin of the mitochondrion from a eubacterial ancestor shared with a subgroup of the alpha-Proteobacteria. However, recent studies of unicellular eukaryotes (protists), some of them little known, have provided insights that challenge the traditional serial endosymbiosis-based view of how the eukaryotic cell and its mitochondrion came to be. These data indicate that the mitochondrion arose in a common ancestor of all extant eukaryotes and raise the possibility that this organelle originated at essentially the same time as the nuclear component of the eukaryotic cell rather than in a separate, subsequent event.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gray, M W -- Burger, G -- Lang, B F -- New York, N.Y. -- Science. 1999 Mar 5;283(5407):1476-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Dalhousie University, Halifax, Nova Scotia B3H 4H7, Canada. M.W.Gray@Dal.Ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10066161" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Archaea/genetics ; Bacteria/genetics ; *Biological Evolution ; DNA, Mitochondrial/chemistry/*genetics ; *Eukaryotic Cells/physiology/ultrastructure ; Evolution, Molecular ; Genes ; Mitochondria/*genetics ; Models, Biological ; Phylogeny ; Symbiosis
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    Evolution flies (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schall, J J -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):414.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577202" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Drosophila/genetics ; Periodicals as Topic ; Publishing
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Evolution flies (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gregory, T R -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):414.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577201" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Drosophila/genetics ; Selection, Genetic
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    Documenting speciation (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knox, J S -- New York, N.Y. -- Science. 1999 Oct 22;286(5440):684.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577224" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Asteraceae/genetics ; *Biological Evolution ; Phylogeny ; *Poaceae/genetics
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    Highly visible, curiously intangible (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clark, G A -- New York, N.Y. -- Science. 1999 Mar 26;283(5410):2029, 2031-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anthropology, Arizona State University, Tempe, AZ 85287-2402, USA. gaclark@asu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10206911" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; *Archaeology ; *Biological Evolution ; Europe ; History, Ancient ; *Hominidae ; Humans ; Models, Biological ; *Paleontology
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    Forming the robust australopithecine face (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morell, V -- New York, N.Y. -- Science. 1999 Apr 9;284(5412):230-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10232966" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; *Biological Evolution ; Face/anatomy & histology ; Facial Bones/*anatomy & histology ; History, Ancient ; Hominidae/*anatomy & histology ; Humans ; Molar/anatomy & histology ; Paleodontology ; Paleontology ; Phylogeny
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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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    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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    The evolution of dinosaurs (1999)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1999-06-26
    Description: The ascendancy of dinosaurs on land near the close of the Triassic now appears to have been as accidental and opportunistic as their demise and replacement by therian mammals at the end of the Cretaceous. The dinosaurian radiation, launched by 1-meter-long bipeds, was slower in tempo and more restricted in adaptive scope than that of therian mammals. A notable exception was the evolution of birds from small-bodied predatory dinosaurs, which involved a dramatic decrease in body size. Recurring phylogenetic trends among dinosaurs include, to the contrary, increase in body size. There is no evidence for co-evolution between predators and prey or between herbivores and flowering plants. As the major land masses drifted apart, dinosaurian biogeography was molded more by regional extinction and intercontinental dispersal than by the breakup sequence of Pangaea.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sereno, P C -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2137-47.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10381873" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds/anatomy & histology/physiology ; Body Constitution ; Feathers ; Flight, Animal ; Fossils ; Locomotion ; *Paleontology ; Phylogeny ; *Reptiles/anatomy & histology/physiology
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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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    Keeping calm about Kansas (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allison, M L -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):411.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577198" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Biology/*education ; Curriculum ; Kansas ; Science/*education
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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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    Perspectives: evolutionary biology. The evolutionary synthesis (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stenseth, N C -- New York, N.Y. -- Science. 1999 Nov 19;286(5444):1490.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Oslo, Oslo, Norway. n.c.stenseth@bio.uio.no〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610549" target="_blank"〉PubMed〈/a〉
    Keywords: Academies and Institutes ; *Awards and Prizes ; *Biological Evolution ; England ; History, 20th Century ; Selection, Genetic ; Sweden ; United States
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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
    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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    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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    A barely tested hypothesis (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hogg, D W -- New York, N.Y. -- Science. 1999 Nov 26;286(5445):1679.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610561" target="_blank"〉PubMed〈/a〉
    Keywords: Astronomical Phenomena ; Astronomy ; *Biological Evolution ; Selection, Genetic
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    Science and "truth" (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-08-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hogg, D W -- New York, N.Y. -- Science. 1999 Jul 30;285(5428):663.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10454916" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Science ; *Selection, Genetic
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    Fossil offers a glimpse into mammals' past (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zimmer, C -- New York, N.Y. -- Science. 1999 Mar 26;283(5410):1989-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10206896" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; China ; *Fossils ; *Mammals/anatomy & histology ; Paleodontology ; Paleontology
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  • 74
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    Science and "truth" (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-08-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brush, J S -- New York, N.Y. -- Science. 1999 Jul 30;285(5428):663.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10454915" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Humans ; Religion and Science
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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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    Darwin's more stately mansion (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gould, S J -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2087.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10409062" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Humans
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Female x male interactions in Drosophila sperm competition (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-08
    Description: In several organisms, the success of a male's sperm in multiply inseminated females depends on the male's genotype. In Drosophila, the female also plays a role in determining which sperm are successful. Pairwise tests among six isogenic lines of Drosophila melanogaster were performed to determine whether there is a genotype-specific interaction in the success of sperm. The success of a particular male's sperm was found to depend on the genotype of the female with which he mates, providing evidence for an interaction with profound evolutionary consequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clark, A G -- Begun, D J -- Prout, T -- New York, N.Y. -- Science. 1999 Jan 8;283(5399):217-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Pennsylvania State University, University Park, PA 16802, USA. c92@psu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9880253" target="_blank"〉PubMed〈/a〉
    Keywords: Analysis of Variance ; Animals ; *Biological Evolution ; Computer Simulation ; Drosophila melanogaster/genetics/*physiology ; Female ; Genetic Variation ; Genotype ; Male ; Models, Biological ; Sex Characteristics ; *Sexual Behavior, Animal ; Spermatozoa/*physiology
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    Early animal evolution: emerging views from comparative biology and geology (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: The Cambrian appearance of fossils representing diverse phyla has long inspired hypotheses about possible genetic or environmental catalysts of early animal evolution. Only recently, however, have data begun to emerge that can resolve the sequence of genetic and morphological innovations, environmental events, and ecological interactions that collectively shaped Cambrian evolution. Assembly of the modern genetic tool kit for development and the initial divergence of major animal clades occurred during the Proterozoic Eon. Crown group morphologies diversified in the Cambrian through changes in the genetic regulatory networks that organize animal ontogeny. Cambrian radiation may have been triggered by environmental perturbation near the Proterozoic-Cambrian boundary and subsequently amplified by ecological interactions within reorganized ecosystems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knoll, A H -- Carroll, S B -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2129-37.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10381872" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Ecosystem ; *Fossils ; Genes, Homeobox ; *Geologic Sediments ; Oxygen ; *Paleontology ; Phylogeny
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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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    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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    Origin and ancestor: separate environments (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-02-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arrhenius, G -- Bada, J L -- Joyce, G F -- Lazcano, A -- Miller, S -- Orgel, L E -- New York, N.Y. -- Science. 1999 Feb 5;283(5403):792.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10049121" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; *Biological Evolution ; *Origin of Life ; Temperature
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  • 83
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    Did cooked tubers spur the evolution of big brains? (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1999 Mar 26;283(5410):2004-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10206901" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Brain/*anatomy & histology ; *Cooking ; *Diet ; Female ; *Hominidae/anatomy & histology ; Humans ; Male ; Sex Characteristics ; *Vegetables
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    From a flatworm, new clues on animal origins (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1999 Mar 19;283(5409):1823, 1825.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10206880" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Cell Division ; DNA, Helminth/chemistry/genetics ; DNA, Ribosomal/chemistry/genetics ; *Genes, rRNA ; Invertebrates/anatomy & histology/*classification/genetics ; *Phylogeny ; Platyhelminths/anatomy & histology/*classification/genetics ; RNA, Ribosomal, 18S/genetics ; Sequence Analysis, DNA
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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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    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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  • 87
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    Evolutionary and preservational constraints on origins of biologic groups: divergence times of eutherian mammals (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-02-26
    Description: Some molecular clock estimates of divergence times of taxonomic groups undergoing evolutionary radiation are much older than the groups' first observed fossil record. Mathematical models of branching evolution are used to estimate the maximal rate of fossil preservation consistent with a postulated missing history, given the sum of species durations implied by early origins under a range of species origination and extinction rates. The plausibility of postulated divergence times depends on origination, extinction, and preservation rates estimated from the fossil record. For eutherian mammals, this approach suggests that it is unlikely that many modern orders arose much earlier than their oldest fossil records.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Foote, M -- Hunter, J P -- Janis, C M -- Sepkoski, J J Jr -- New York, N.Y. -- Science. 1999 Feb 26;283(5406):1310-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of the Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue, Chicago, IL 60637, USA. mfoote@midway.uchicago.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10037598" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Fossils ; *Mammals ; Mathematics ; *Models, Biological
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 88
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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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  • 89
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    Fire use (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rowlett, R M -- New York, N.Y. -- Science. 1999 Apr 30;284(5415):741.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10336394" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Cooking ; *Diet ; *Hominidae/anatomy & histology ; Humans ; Skull/anatomy & histology ; Vegetables
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  • 90
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    Acoel flatworms: earliest extant bilaterian Metazoans, not members of Platyhelminthes (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-03-19
    Description: Because of their simple organization the Acoela have been considered to be either primitive bilaterians or descendants of coelomates through secondary loss of derived features. Sequence data of 18S ribosomal DNA genes from non-fast evolving species of acoels and other metazoans reveal that this group does not belong to the Platyhelminthes but represents the extant members of the earliest divergent Bilateria, an interpretation that is supported by recent studies on the embryonic cleavage pattern and nervous system of acoels. This study has implications for understanding the evolution of major body plans, and for perceptions of the Cambrian evolutionary explosion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ruiz-Trillo, I -- Riutort, M -- Littlewood, D T -- Herniou, E A -- Baguna, J -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1999 Mar 19;283(5409):1919-23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departament de Genetica, Facultat de Biologia, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10082465" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; DNA, Helminth/chemistry/genetics ; DNA, Ribosomal/chemistry/genetics ; Evolution, Molecular ; *Genes, rRNA ; Invertebrates/anatomy & histology/*classification/embryology/genetics ; Molecular Sequence Data ; *Phylogeny ; Platyhelminths/anatomy & histology/*classification/embryology/genetics ; RNA, Ribosomal, 18S/genetics ; Sequence Analysis, DNA
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  • 91
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    Ecology returns to speciation studies (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morell, V -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2106-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10409067" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; Animals ; *Biological Evolution ; Drosophila/genetics/physiology ; *Ecosystem ; Fishes/genetics/physiology ; Geography ; Lizards/genetics/physiology ; *Mutation ; *Selection, Genetic
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  • 92
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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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  • 93
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    Mismatch repair co-opted by hypermutation (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: Mice homozygous for a disrupted allele of the mismatch repair gene Pms2 have a mutator phenotype. When this allele is crossed into quasi-monoclonal (QM) mice, which have a very limited B cell repertoire, homozygotes have fewer somatic mutations at the immunoglobulin heavy chain and lambda chain loci than do heterozygotes or wild-type QM mice. That is, mismatch repair seems to contribute to somatic hypermutation rather than stifling it. It is suggested that at immunoglobulin loci in hypermutable B cells, mismatched base pairs are "corrected" according to the newly synthesized DNA strand, thereby fixing incipient mutations instead of eliminating them.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cascalho, M -- Wong, J -- Steinberg, C -- Wabl, M -- 1R01 GM37699/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Feb 20;279(5354):1207-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, University of California, San Francisco, CA 94143-0670, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9469811" target="_blank"〉PubMed〈/a〉
    Keywords: *Adenosine Triphosphatases ; Alleles ; Amino Acid Sequence ; Animals ; B-Lymphocytes/immunology ; Base Composition ; Base Sequence ; Cloning, Molecular ; Crosses, Genetic ; *DNA Repair ; *DNA Repair Enzymes ; *DNA-Binding Proteins ; Female ; Gene Rearrangement ; *Genes, Immunoglobulin ; Heterozygote ; Immunoglobulin Heavy Chains/chemistry/genetics ; Immunoglobulin Variable Region/chemistry/*genetics ; Immunoglobulin lambda-Chains/chemistry/genetics ; Male ; Mice ; Mice, Knockout ; Molecular Sequence Data ; *Mutation ; Proteins/*genetics/physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 94
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    Genes put mammals in age of dinosaurs (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1998 May 1;280(5364):675-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9599143" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Evolution, Molecular ; Fossils ; History, Ancient ; Mammals/*genetics ; *Paleontology
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  • 95
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    Ribozyme-mediated repair of sickle beta-globin mRNAs in erythrocyte precursors (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-11
    Description: Sickle cell anemia is the most common heritable hematological disease, yet no curative treatment exists for this disorder. Moreover, the intricacies of globin gene expression have made the development of treatments for hemoglobinopathies based on gene therapy difficult. An alternative genetic approach to sickle cell therapy is based on RNA repair. A trans-splicing group I ribozyme was used to alter mutant beta-globin transcripts in erythrocyte precursors derived from peripheral blood from individuals with sickle cell disease. Sickle beta-globin transcripts were converted into messenger RNAs encoding the anti-sickling protein gamma-globin. These results suggest that RNA repair may become a useful approach in the treatment of genetic disorders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lan, N -- Howrey, R P -- Lee, S W -- Smith, C A -- Sullenger, B A -- HL57606/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1998 Jun 5;280(5369):1593-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Genetic and Cellular Therapies, Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9616120" target="_blank"〉PubMed〈/a〉
    Keywords: Anemia, Sickle Cell/*blood/therapy ; Cloning, Molecular ; Erythroid Precursor Cells/*metabolism ; Exons ; Fetal Blood ; Genetic Therapy ; Globins/*genetics ; Humans ; Mutation ; Polymerase Chain Reaction ; *RNA Splicing ; RNA, Catalytic/genetics/*metabolism ; RNA, Messenger/chemistry/*genetics/metabolism ; Transfection ; Uridine/metabolism
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  • 96
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    Protein kinase B kinases that mediate phosphatidylinositol 3,4,5-trisphosphate-dependent activation of protein kinase B (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-21
    Description: Protein kinase B (PKB) is activated in response to phosphoinositide 3-kinases and their lipid products phosphatidylinositol 3,4, 5-trisphosphate [PtdIns(3,4,5)P3] and PtdIns(3,4)P2 in the signaling pathways used by a wide variety of growth factors, antigens, and inflammatory stimuli. PKB is a direct target of these lipids, but this regulation is complex. The lipids can bind to the pleckstrin homologous domain of PKB, causing its translocation to the membrane, and also enable upstream, Thr308-directed kinases to phosphorylate and activate PKB. Four isoforms of these PKB kinases were purified from sheep brain. They bound PtdIns(3,4,5)P3 and associated with lipid vesicles containing it. These kinases contain an NH2-terminal catalytic domain and a COOH-terminal pleckstrin homologous domain, and their heterologous expression augments receptor activation of PKB, which suggests they are the primary signal transducers that enable PtdIns(3,4,5)P3 or PtdIns- (3,4)P2 to activate PKB and hence to control signaling pathways regulating cell survival, glucose uptake, and glycogen metabolism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stephens, L -- Anderson, K -- Stokoe, D -- Erdjument-Bromage, H -- Painter, G F -- Holmes, A B -- Gaffney, P R -- Reese, C B -- McCormick, F -- Tempst, P -- Coadwell, J -- Hawkins, P T -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):710-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Inositide Laboratory, The Babraham Institute, Babraham, Cambridge CB2 4AT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9445477" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Phosphoinositide-Dependent Protein Kinases ; Alternative Splicing ; Amino Acid Sequence ; Animals ; Cell Line ; Cell Membrane/enzymology ; Cloning, Molecular ; DNA, Complementary ; Drosophila ; Drosophila Proteins ; Enzyme Activation ; Humans ; Liposomes/metabolism ; Molecular Sequence Data ; Open Reading Frames ; Phosphatidylinositol Phosphates/*metabolism ; Phosphorylation ; Platelet-Derived Growth Factor/pharmacology ; Protein-Serine-Threonine Kinases/chemistry/genetics/isolation & ; purification/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-akt ; Rats ; Recombinant Proteins/metabolism ; Sheep ; *Signal Transduction
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  • 97
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    Human monogamy (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clark, G A -- New York, N.Y. -- Science. 1998 Nov 6;282(5391):1047-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841447" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Culture ; Female ; Hominidae/psychology ; Humans ; Male ; *Sexual Behavior ; Sexual Behavior, Animal ; *Sexual Partners
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  • 98
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    Sex and conflict (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-25
    Description: Evolutionary conflict occurs when the deterministic spread of an allele lowers the fitness either of its bearer or of other individuals in the population, leading to selection for suppressors. Sex promotes conflict because associations between alleles are temporary. Differing selection on males and females, sexual selection, and differences in transmission patterns between classes of nuclear and cytoplasmic genes can all give rise to conflict. Inert Y chromosomes, uniparental inheritance of cytoplasmic genes, mating strains and sexes, and many features of sexual behavior may have evolved in part as a result of evolutionary conflict. Estimates of its quantitative importance, however, are still needed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Partridge, L -- Hurst, L D -- New York, N.Y. -- Science. 1998 Sep 25;281(5385):2003-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Galton Laboratory, Department of Biology, University College London, London NW1 2HE, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9748155" target="_blank"〉PubMed〈/a〉
    Keywords: *Alleles ; Animals ; *Biological Evolution ; Female ; Male ; Meiosis ; Organelles/genetics ; *Selection, Genetic ; *Sex ; Sex Characteristics ; Sexual Behavior, Animal ; Y Chromosome/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 99
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    Versatile gene uptake system found in cholera bacterium (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Apr 24;280(5363):521-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9575097" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular ; Drug Resistance, Microbial/genetics ; Escherichia coli/genetics/pathogenicity ; *Genes, Bacterial ; Integrases/*genetics/metabolism ; *Recombination, Genetic ; *Repetitive Sequences, Nucleic Acid ; Vibrio cholerae/enzymology/*genetics/pathogenicity ; Virulence/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 100
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    Endocranial capacity in an early hominid cranium from Sterkfontein, South Africa (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-20
    Description: Two- and three-dimensional computer imaging shows that endocranial capacity in an approximately 2.8- to 2.6-million-year-old early hominid cranium (Stw 505) from Sterkfontein, South Africa, tentatively assigned to Australopithecus africanus, is approximately 515 cubic centimeters. Although this is the largest endocranial capacity recorded for this species, it is still markedly less than anecdotal reports of endocranial capacity exceeding 600 cubic centimeters. No australopithecine has an endocranial capacity approaching, let alone exceeding, 600 cubic centimeters. Some currently accepted estimates of early hominid endocranial capacity may be inflated, suggesting that the tempo and mode of early hominid brain evolution may need reevaluation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Conroy, G C -- Weber, G W -- Seidler, H -- Tobias, P V -- Kane, A -- Brunsden, B -- New York, N.Y. -- Science. 1998 Jun 12;280(5370):1730-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Neurobiology and Department of Anthropology, Washington University School of Medicine, St. Louis, MO 63110, USA. conroyg@thalamus.wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9624045" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Brain/*anatomy & histology ; Computer Simulation ; *Fossils ; History, Ancient ; Hominidae/*anatomy & histology ; Humans ; Image Processing, Computer-Assisted ; *Models, Anatomic ; Skull/*anatomy & histology ; South Africa ; Tomography, X-Ray Computed
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