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  • Articles  (10,180)
  • United States  (5,912)
  • Mutation  (2,852)
  • *Ecosystem  (1,597)
  • American Association for the Advancement of Science (AAAS)  (10,180)
  • American Institute of Physics (AIP)
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  • Articles  (10,180)
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  • 1
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    Genetics. Please don't call it cloning! (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-02-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogelstein, Bert -- Alberts, Bruce -- Shine, Kenneth -- New York, N.Y. -- Science. 2002 Feb 15;295(5558):1237.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Kimmel Cancer Center at Johns Hopkins University, Baltimore, MD 21231, USA. vogelbe@welch.jhu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11847324" target="_blank"〉PubMed〈/a〉
    Keywords: Bioethical Issues ; Cell Line ; *Cloning, Organism/legislation & jurisprudence ; Embryo Research ; Embryo, Mammalian/*cytology ; Humans ; *Nuclear Transfer Techniques ; *Stem Cells ; *Terminology as Topic ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Genomic instability in mice lacking histone H2AX (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-04-06
    Description: Higher order chromatin structure presents a barrier to the recognition and repair of DNA damage. Double-strand breaks (DSBs) induce histone H2AX phosphorylation, which is associated with the recruitment of repair factors to damaged DNA. To help clarify the physiological role of H2AX, we targeted H2AX in mice. Although H2AX is not essential for irradiation-induced cell-cycle checkpoints, H2AX-/- mice were radiation sensitive, growth retarded, and immune deficient, and mutant males were infertile. These pleiotropic phenotypes were associated with chromosomal instability, repair defects, and impaired recruitment of Nbs1, 53bp1, and Brca1, but not Rad51, to irradiation-induced foci. Thus, H2AX is critical for facilitating the assembly of specific DNA-repair complexes on damaged DNA.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4721576/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4721576/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Celeste, Arkady -- Petersen, Simone -- Romanienko, Peter J -- Fernandez-Capetillo, Oscar -- Chen, Hua Tang -- Sedelnikova, Olga A -- Reina-San-Martin, Bernardo -- Coppola, Vincenzo -- Meffre, Eric -- Difilippantonio, Michael J -- Redon, Christophe -- Pilch, Duane R -- Olaru, Alexandru -- Eckhaus, Michael -- Camerini-Otero, R Daniel -- Tessarollo, Lino -- Livak, Ferenc -- Manova, Katia -- Bonner, William M -- Nussenzweig, Michel C -- Nussenzweig, Andre -- Z99 CA999999/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2002 May 3;296(5569):922-7. Epub 2002 Apr 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Experimental Immunology Branch, National Cancer Institute, NIH, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11934988" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; B-Lymphocytes/immunology/physiology ; Base Sequence ; Cell Aging ; Cell Cycle ; Cells, Cultured ; *Chromosome Aberrations ; DNA Damage ; *DNA Repair ; Female ; Gene Targeting ; Histones/chemistry/*genetics/*physiology ; Immunoglobulin Class Switching ; Infertility, Male/genetics/physiopathology ; Lymphocyte Count ; Male ; Meiosis ; Mice ; Mice, Knockout ; Molecular Sequence Data ; Mutation ; Phosphorylation ; *Recombination, Genetic ; Spermatocytes/physiology ; T-Lymphocytes/immunology/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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  • 3
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    Genomics. Gene duplication and evolution (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-08-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lynch, Michael -- New York, N.Y. -- Science. 2002 Aug 9;297(5583):945-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Indiana University, Bloomington, IN 47405, USA. mlynch@bio.indiana.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12169715" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Caenorhabditis elegans/genetics ; Chromosomes/genetics ; Chromosomes, Human/genetics ; *Gene Duplication ; Gene Rearrangement ; Gene Silencing ; *Genes, Duplicate ; *Genome, Human ; Genomics ; Humans ; Mutation ; 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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    Visualization and functional analysis of RNA-dependent RNA polymerase lattices (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-22
    Description: Positive-strand RNA viruses such as poliovirus replicate their genomes on intracellular membranes of their eukaryotic hosts. Electron microscopy has revealed that purified poliovirus RNA-dependent RNA polymerase forms planar and tubular oligomeric arrays. The structural integrity of these arrays correlates with cooperative RNA binding and RNA elongation and is sensitive to mutations that disrupt intermolecular contacts predicted by the polymerase structure. Membranous vesicles isolated from poliovirus-infected cells contain structures consistent with the presence of two-dimensional polymerase arrays on their surfaces during infection. Therefore, host cytoplasmic membranes may function as physical foundations for two-dimensional polymerase arrays, conferring the advantages of surface catalysis to viral RNA replication.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lyle, John M -- Bullitt, Esther -- Bienz, Kurt -- Kirkegaard, Karla -- AI-42119/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2002 Jun 21;296(5576):2218-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12077417" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Binding Sites ; Catalysis ; Crystallography, X-Ray ; HeLa Cells ; Humans ; Hydrogen-Ion Concentration ; Inclusion Bodies, Viral/metabolism/ultrastructure ; Microscopy, Electron ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Nucleic Acid Conformation ; Poliovirus/*enzymology/physiology ; Protein Conformation ; Protein Structure, Quaternary ; Protein Structure, Tertiary ; RNA Replicase/*chemistry/isolation & purification/*metabolism/ultrastructure ; RNA, Viral/biosynthesis/*metabolism ; Viral Core Proteins/metabolism ; Virus Replication
    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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    Planetary science. NASA's new road to faster, cheaper, better exploration (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, Richard A -- New York, N.Y. -- Science. 2002 Nov 15;298(5597):1320-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12434031" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; *Planets ; Research Personnel ; Research Support as Topic ; Solar System ; Space Flight/*economics/*organization & administration/trends ; Spacecraft ; United States ; United States National Aeronautics and Space ; Administration/*economics/*organization & administration/trends
    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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    Climate change and latitudinal patterns of intertidal thermal stress (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-02
    Description: The interaction of climate and the timing of low tides along the West Coast of the United States creates a complex mosaic of thermal environments, in which northern sites can be more thermally stressful than southern sites. Thus, climate change may not lead to a poleward shift in the distribution of intertidal organisms, as has been proposed, but instead will likely cause localized extinctions at a series of "hot spots." Patterns of exposure to extreme climatic conditions are temporally variable, and tidal predictions suggest that in the next 3 to 5 years "hot spots" are likely to appear at several northern sites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Helmuth, Brian -- Harley, Christopher D G -- Halpin, Patricia M -- O'Donnell, Michael -- Hofmann, Gretchen E -- Blanchette, Carol A -- New York, N.Y. -- Science. 2002 Nov 1;298(5595):1015-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of South Carolina, Department of Biological Sciences and Marine Sciences Program, Columbia, SC 29208, USA. helmuth@biol.sc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12411702" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bivalvia/*physiology ; *Body Temperature ; *Climate ; *Ecosystem ; Environment ; Geography ; Pacific Ocean ; Pacific States ; Seasons ; *Seawater ; Temperature ; *Water Movements
    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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    Enhanced and delayed stress-induced alcohol drinking in mice lacking functional CRH1 receptors (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-04
    Description: There is a relation between stress and alcohol drinking. We show that the corticotropin-releasing hormone (CRH) system that mediates endocrine and behavioral responses to stress plays a role in the control of long-term alcohol drinking. In mice lacking a functional CRH1 receptor, stress leads to enhanced and progressively increasing alcohol intake. The effect of repeated stress on alcohol drinking behavior appeared with a delay and persisted throughout life. It was associated with an up-regulation of the N-methyl-d-aspartate receptor subunit NR2B. Alterations in the CRH1 receptor gene and adaptional changes in NR2B subunits may constitute a genetic risk factor for stress-induced alcohol drinking and alcoholism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sillaber, Inge -- Rammes, Gerhard -- Zimmermann, Stephan -- Mahal, Beatrice -- Zieglgansberger, Walter -- Wurst, Wolfgang -- Holsboer, Florian -- Spanagel, Rainer -- New York, N.Y. -- Science. 2002 May 3;296(5569):931-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany. sillaber@mpipsykl.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11988580" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; *Alcohol Drinking ; Alcoholism/*etiology/genetics ; Animals ; Brain/metabolism ; Corticotropin-Releasing Hormone/physiology ; Ethanol/blood ; Female ; Hippocampus/physiology ; In Vitro Techniques ; Male ; Mice ; Mice, Knockout ; Models, Animal ; Mutation ; Receptors, AMPA/metabolism ; Receptors, Corticotropin-Releasing Hormone/*genetics/*physiology ; Receptors, Kainic Acid/metabolism ; Receptors, N-Methyl-D-Aspartate/*metabolism ; Signal Transduction ; Stress, Physiological/physiopathology ; Stress, Psychological/*physiopathology ; Up-Regulation
    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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    Hybridization and the evolution of reef coral diversity (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-18
    Description: Hundreds of coral species coexist sympatrically on reefs, reproducing in mass-spawning events where hybridization appears common. In the Caribbean, DNA sequence data from all three sympatric Acropora corals show that mass spawning does not erode species barriers. Species A. cervicornis and A. palmata are distinct at two nuclear loci or share ancestral alleles. Morphotypes historically given the name Acropora prolifera are entirely F(1) hybrids of these two species, showing morphologies that depend on which species provides the egg for hybridization. Although selection limits the evolutionary potential of hybrids, F(1) individuals can reproduce asexually and form long-lived, potentially immortal hybrids with unique morphologies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vollmer, Steven V -- Palumbi, Stephen R -- New York, N.Y. -- Science. 2002 Jun 14;296(5575):2023-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismic and Evolutionary Biology, Harvard University, 16 Divinity Avenue, Cambridge, MA 02138, USA. svollmer@oeb.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12065836" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bayes Theorem ; *Biological Evolution ; Calmodulin/genetics ; Caribbean Region ; Cnidaria/anatomy & histology/*classification/*genetics/physiology ; Collagen/genetics ; DNA, Mitochondrial/genetics ; *Ecosystem ; Environment ; *Genetic Variation ; Haplotypes ; *Hybridization, Genetic ; Introns ; Likelihood Functions ; Polymorphism, Genetic ; Reproduction ; Reproduction, Asexual ; Sequence Analysis, DNA ; Species Specificity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Patent law. Natural substances and patentable inventions (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Demaine, Linda J -- Fellmeth, Aaron X -- New York, N.Y. -- Science. 2003 May 30;300(5624):1375-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉RAND, Santa Monica, CA 90401, USA. demaine@rand.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12775825" target="_blank"〉PubMed〈/a〉
    Keywords: Aluminum Oxide ; Chemical Phenomena ; Chemistry ; Natural Science Disciplines ; Patents as Topic/*legislation & jurisprudence ; Plant Extracts ; Plant Roots ; Titanium ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Smallpox research. World health body fires starting gun (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2002 May 24;296(5572):1383.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12029105" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Specimen Banks ; *Research ; Russia ; United States ; *Variola virus ; *World Health Organization
    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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