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  • Articles  (2,321)
  • Data
  • History, 21st Century
  • Models, Biological
  • Science. 199(4325): 183-6.  (1)
  • Science. 199(4326): 259-70.  (1)
  • Science. 199(4328): 552-5.  (1)
  • Science. 200(4339): 330-2.  (1)
  • Science. 201(4358): 786-92.  (1)
  • Science. 202(4366): 412-5.  (1)
  • Science. 202(4370): 896-9.  (1)
  • Science. 202(4374): 1290-3.  (1)
  • Science. 203(4375): 55-7.  (1)
  • Science. 203(4379): 410-5.  (1)
  • Science. 203(4384): 1027-9.  (1)
  • Science. 203(4385): 1131-3.  (1)
  • Science. 203(4386): 1259-61.  (1)
  • Science. 203(4387): 1351-2.  (1)
  • Science. 204(4393): 639-41.  (1)
  • Science. 204(4397): 1052-9.  (1)
  • Science. 205(4407): 662-8.  (1)
  • Science. 206(4415): 232-4.  (1)
  • Science. 206(4422): 1081-3.  (1)
  • Science. 208(4440): 145-51.  (1)
  • 25
  • 328
  • Biology  (2,321)
  • Electrical Engineering, Measurement and Control Technology
Collection
  • Articles  (2,321)
  • Data
Source
Keywords
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Journal
Topic
  • 1
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    Signal transduction. History matters (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-08-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ingolia, Nicholas T -- Murray, Andrew W -- New York, N.Y. -- Science. 2002 Aug 9;297(5583):948-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology and Bauer Center for Genomics Research, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12169717" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Animals ; Biological Evolution ; *Cell Cycle Proteins ; Cells, Cultured ; Dual Specificity Phosphatase 1 ; *Feedback, Physiological ; Immediate-Early Proteins/*metabolism ; *MAP Kinase Signaling System ; Mitogen-Activated Protein Kinases/*metabolism ; Models, Biological ; *Phosphoprotein Phosphatases ; Platelet-Derived Growth Factor/metabolism/pharmacology ; Protein Phosphatase 1 ; Protein Tyrosine Phosphatases/*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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  • 2
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    Loren Rieseberg profile. No garden-variety biologist (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, Kathryn -- New York, N.Y. -- Science. 2003 Nov 28;302(5650):1499.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14645825" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; *Biological Evolution ; Desert Climate ; Ecosystem ; Environment ; Genes, Plant ; Helianthus/*genetics/growth & development/physiology ; History, 20th Century ; History, 21st Century ; *Hybridization, Genetic ; Mutation ; Phenotype ; Sodium Chloride/pharmacology ; 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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  • 3
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    Parkinson's disease. Coincidence or connection? (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-04-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2002 Apr 19;296(5567):451-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11964452" target="_blank"〉PubMed〈/a〉
    Keywords: Canada/epidemiology ; Cluster Analysis ; Environmental Exposure/adverse effects ; *Famous Persons ; Female ; History, 21st Century ; Humans ; Male ; Parkinson Disease/*epidemiology/etiology ; *Television ; Time Factors ; Virus Diseases/complications/epidemiology
    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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    2003 Grand Prize winner (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-11-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2003 Oct 31;302(5646):801.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14593161" target="_blank"〉PubMed〈/a〉
    Keywords: *Awards and Prizes ; History, 20th Century ; History, 21st Century ; *Neurobiology/history
    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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    Amersham Prize. 2002 grand prize winner (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-10-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2003 Oct 24;302(5645):585.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14576414" target="_blank"〉PubMed〈/a〉
    Keywords: *Awards and Prizes ; China ; History, 20th Century ; History, 21st Century ; *Molecular Biology/history ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Retrospective. "My little spontaneous blips" (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heuser, John -- New York, N.Y. -- Science. 2003 May 23;300(5623):1248.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Washington University School of Medicine, St. Louis, MO 63110. jheuser@cellbio.wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12764186" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biophysics/history ; England ; Germany ; History, 20th Century ; History, 21st Century ; Motor Endplate/physiology ; Neurophysiology/history ; Neurotransmitter Agents/history/metabolism ; Nobel Prize ; Synapses/physiology ; *Synaptic Transmission
    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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    Bioweapons. British expert leaves impressive arms control legacy (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-07-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2003 Jul 25;301(5632):445-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12881537" target="_blank"〉PubMed〈/a〉
    Keywords: Biological Warfare/*history ; Great Britain ; History, 20th Century ; History, 21st Century ; Iraq ; Microbiology/history
    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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    Cell biology. Microtubule asymmetry (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-06-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gundersen, Gregg G -- Bretscher, Anthony -- New York, N.Y. -- Science. 2003 Jun 27;300(5628):2040-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Cell Biology and Department of Pathology, Columbia University, New York, NY 10032, USA. ggg1@columbia.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12829769" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/metabolism ; CDC28 Protein Kinase, S cerevisiae/*metabolism ; Cell Cycle Proteins/metabolism ; Cell Division ; Cell Polarity ; Cyclins/metabolism ; Microtubule Proteins/metabolism ; Microtubule-Organizing Center/*metabolism/ultrastructure ; Microtubules/*metabolism/ultrastructure ; Models, Biological ; Mutation ; Myosin Heavy Chains/metabolism ; Myosin Type V/metabolism ; Nuclear Proteins/*metabolism ; Phosphorylation ; Protein Transport ; Saccharomyces cerevisiae/cytology/metabolism/ultrastructure ; Saccharomyces cerevisiae Proteins/metabolism ; Spindle Apparatus/*physiology/ultrastructure
    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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    Yoshihide Hayashizaki profile.He's writing the book on the mouse genome (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-10-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, Dennis -- New York, N.Y. -- Science. 2003 Oct 10;302(5643):217-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14551415" target="_blank"〉PubMed〈/a〉
    Keywords: Access to Information ; Animals ; *Cloning, Molecular ; Computational Biology ; Costs and Cost Analysis ; *DNA, Complementary ; Databases, Nucleic Acid ; *Gene Library ; *Genome ; History, 21st Century ; Japan ; Mice/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Thomas Monath profile. Riding the biodefense wave (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-08-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, Martin -- New York, N.Y. -- Science. 2003 Aug 15;301(5635):912-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12920279" target="_blank"〉PubMed〈/a〉
    Keywords: Biological Warfare ; *Biotechnology/economics/history ; History, 20th Century ; History, 21st Century ; Humans ; Security Measures ; *Smallpox Vaccine/economics ; United States ; *Viral Vaccines/economics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 11
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    Ecology. 'Tragedy of the commons' author dies (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-10-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2003 Oct 3;302(5642):32.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14526046" target="_blank"〉PubMed〈/a〉
    Keywords: Ecology ; Environment ; History, 20th Century ; History, 21st Century ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 12
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    Botany. State transitions--a question of balance (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allen, John F -- New York, N.Y. -- Science. 2003 Mar 7;299(5612):1530-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Biochemistry, Center for Chemistry and Chemical Engineering, Box 124, Lund University, SE-221 00 Lund, Sweden. john.allen@plantbio.lu.se〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12624254" target="_blank"〉PubMed〈/a〉
    Keywords: Algal Proteins/chemistry/genetics/isolation & purification/metabolism ; Animals ; Binding Sites ; Chlamydomonas reinhardtii/*enzymology/genetics/metabolism ; Chlorophyll/metabolism ; Electron Transport ; Fluorescence ; Gene Library ; Light ; Light-Harvesting Protein Complexes ; Models, Biological ; Mutation ; Oxidation-Reduction ; Phosphorylation ; Photosynthesis ; Photosynthetic Reaction Center Complex Proteins/*metabolism ; Plastoquinone/metabolism ; Protein-Serine-Threonine Kinases/chemistry/genetics/*isolation & ; purification/*metabolism ; Signal Transduction ; Thylakoids/*enzymology ; Transcription, 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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  • 13
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    Infectious diseases. Up close and personal with SARS (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, Dennis -- New York, N.Y. -- Science. 2003 May 9;300(5621):886-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12738826" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Centers for Disease Control and Prevention (U.S.) ; Communicable Diseases, Emerging/epidemiology/*virology ; *Disease Outbreaks ; History, 21st Century ; Hong Kong/epidemiology ; Humans ; Influenza A virus/pathogenicity ; Influenza, Human/epidemiology/transmission/virology ; SARS Virus/*classification/*isolation & purification/pathogenicity/ultrastructure ; Severe Acute Respiratory Syndrome/epidemiology/*virology ; Sri Lanka ; United States ; Universities ; 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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  • 14
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    Scientific community. The trials of Thomas Butler (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-12-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, Martin -- Malakoff, David -- New York, N.Y. -- Science. 2003 Dec 19;302(5653):2054-63.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14684799" target="_blank"〉PubMed〈/a〉
    Keywords: *Bioterrorism ; Clinical Trials as Topic/*economics/standards ; Contracts ; *Fraud ; History, 21st Century ; Humans ; *Jurisprudence ; Law Enforcement ; Plague/drug therapy ; Security Measures ; Sepsis/drug therapy ; Specimen Handling/standards ; Tanzania ; Texas ; United States ; United States Government Agencies ; Universities ; *Yersinia pestis
    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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  • 15
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    A welcome mat for leprosy and Lassa fever (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spear, P G -- New York, N.Y. -- Science. 1998 Dec 11;282(5396):1999-2000.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Northwestern University Medical School, Department of Microbiology-Immunology, Chicago, IL 60611, USA. p-spear@nwu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9874652" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Adhesion ; Cytoskeletal Proteins/genetics/*metabolism ; Dystroglycans ; Humans ; Laminin/metabolism ; Lassa Fever/*virology ; Lassa virus/*metabolism ; Leprosy/*microbiology ; Lymphocytic choriomeningitis virus/metabolism ; Membrane Glycoproteins/genetics/*metabolism ; Models, Biological ; Mycobacterium leprae/*metabolism ; Receptors, Virus/metabolism ; Schwann Cells/microbiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 16
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    Localization of bacterial DNA polymerase: evidence for a factory model of replication (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-11-20
    Description: Two general models have been proposed for DNA replication. In one model, DNA polymerase moves along the DNA (like a train on a track); in the other model, the polymerase is stationary (like a factory), and DNA is pulled through. To distinguish between these models, we visualized DNA polymerase of the bacterium Bacillus subtilis in living cells by the creation of a fusion protein containing the catalytic subunit (PolC) and green fluorescent protein (GFP). PolC-GFP was localized at discrete intracellular positions, predominantly at or near midcell, rather than being distributed randomly. These results suggest that the polymerase is anchored in place and thus support the model in which the DNA template moves through the polymerase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lemon, K P -- Grossman, A D -- GM41934/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Nov 20;282(5393):1516-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Building 68-530, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9822387" target="_blank"〉PubMed〈/a〉
    Keywords: Bacillus subtilis/enzymology/growth & development/*metabolism ; Chromosomes, Bacterial/*metabolism ; *DNA Replication ; DNA, Bacterial/*biosynthesis ; DNA-Directed DNA Polymerase/*analysis/metabolism ; Green Fluorescent Proteins ; Luminescent Proteins ; Models, Biological ; Recombinant Fusion Proteins/metabolism ; *Replication Origin ; Templates, Genetic
    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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  • 17
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    Association of malaria parasite population structure, HLA, and immunological antagonism (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: Host-parasite coevolution has been likened to a molecular arms race, with particular parasite genes evolving to evade specific host defenses. Study of the variants of an antigenic epitope of Plasmodium falciparum that induces a cytotoxic T cell response supports this view. In African children with malaria, the variants present are influenced by the presence of a human leukocyte antigen (HLA) type that restricts the immune response to this epitope. The distribution of parasite variants may be further influenced by the ability of cohabiting parasite strains to facilitate each other's survival by down-regulating cellular immune responses, using altered peptide ligand antagonism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gilbert, S C -- Plebanski, M -- Gupta, S -- Morris, J -- Cox, M -- Aidoo, M -- Kwiatkowski, D -- Greenwood, B M -- Whittle, H C -- Hill, A V -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Feb 20;279(5354):1173-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Windmill Road, Oxford OX3 7BN, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9469800" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Antigens, Protozoan/genetics/*immunology ; Biological Evolution ; Child ; Epitopes ; Evolution, Molecular ; Gambia ; Genes, Protozoan ; Genetic Variation ; HLA-B35 Antigen/*immunology ; Humans ; Ligands ; Malaria, Falciparum/*immunology/parasitology ; Models, Biological ; Plasmodium falciparum/genetics/*immunology ; Protozoan Proteins/genetics/*immunology ; T-Lymphocytes, Cytotoxic/*immunology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 18
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    Exciting times for PIP2 (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ashcroft, F M -- New York, N.Y. -- Science. 1998 Nov 6;282(5391):1059-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University Laboratory of Physiology, Oxford OX1 3PT, UK. frances.ashcroft@physiol.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841452" target="_blank"〉PubMed〈/a〉
    Keywords: *ATP-Binding Cassette Transporters ; Adenosine Triphosphate/*metabolism/pharmacology ; Animals ; Binding Sites ; Cell Membrane/metabolism ; Islets of Langerhans/metabolism ; Models, Biological ; Myocardium/cytology/metabolism ; Phosphatidylinositol 4,5-Diphosphate/chemistry/*metabolism/pharmacology ; Potassium Channels/chemistry/genetics/*metabolism ; *Potassium Channels, Inwardly Rectifying ; Receptors, Drug/chemistry/metabolism ; Sulfonylurea Receptors ; Surface Properties
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 19
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    Duplicating a tangled genome (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cook, P -- New York, N.Y. -- Science. 1998 Sep 4;281(5382):1466-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Sir William Dunn School of Pathology, Oxford OX2 3RE, UK. peter.cook@path.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9750117" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Nucleus/*metabolism ; *DNA Replication ; *Genome ; Genome, Human ; Humans ; Models, Biological ; *Transcription, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Posttranslational quality control: folding, refolding, and degrading proteins (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-03
    Description: Polypeptides emerging from the ribosome must fold into stable three-dimensional structures and maintain that structure throughout their functional lifetimes. Maintaining quality control over protein structure and function depends on molecular chaperones and proteases, both of which can recognize hydrophobic regions exposed on unfolded polypeptides. Molecular chaperones promote proper protein folding and prevent aggregation, and energy-dependent proteases eliminate irreversibly damaged proteins. The kinetics of partitioning between chaperones and proteases determines whether a protein will be destroyed before it folds properly. When both quality control options fail, damaged proteins accumulate as aggregates, a process associated with amyloid diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickner, S -- Maurizi, M R -- Gottesman, S -- New York, N.Y. -- Science. 1999 Dec 3;286(5446):1888-93.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Biology, National Cancer Institute, Bethesda, MD 20892-4255, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10583944" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/metabolism ; Amyloid/metabolism ; Animals ; Endopeptidases/*metabolism ; Eukaryotic Cells/metabolism ; Humans ; Models, Biological ; Molecular Chaperones/*metabolism ; Prions/metabolism ; Prokaryotic Cells/metabolism ; Protein Biosynthesis ; *Protein Folding ; Proteins/*chemistry/*metabolism ; Ubiquitins/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 21
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    Microtubule disassembly by ATP-dependent oligomerization of the AAA enzyme katanin (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-26
    Description: Katanin, a member of the AAA adenosine triphosphatase (ATPase) superfamily, uses nucleotide hydrolysis energy to sever and disassemble microtubules. Many AAA enzymes disassemble stable protein-protein complexes, but their mechanisms are not well understood. A fluorescence resonance energy transfer assay demonstrated that the p60 subunit of katanin oligomerized in an adenosine triphosphate (ATP)- and microtubule-dependent manner. Oligomerization increased the affinity of katanin for microtubules and stimulated its ATPase activity. After hydrolysis of ATP, microtubule-bound katanin oligomers disassembled microtubules and then dissociated into free katanin monomers. Coupling a nucleotide-dependent oligomerization cycle to the disassembly of a target protein complex may be a general feature of ATP-hydrolyzing AAA domains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hartman, J J -- Vale, R D -- New York, N.Y. -- Science. 1999 Oct 22;286(5440):782-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Howard Hughes Medical Institute and the Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10531065" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/*chemistry/*metabolism ; Adenosine Triphosphate/analogs & derivatives/*metabolism ; Amino Acid Sequence ; Centrifugation, Density Gradient ; Fluorescence ; Hydrolysis ; Luminescent Proteins ; Microtubules/*metabolism ; Models, Biological ; Molecular Sequence Data ; Polymers ; Recombinant Fusion Proteins/chemistry/metabolism ; Tubulin/metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    High frequency of cryptic deleterious mutations in Caenorhabditis elegans (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-11
    Description: Deleterious mutations with very small phenotypic effects could be important for several evolutionary phenomena, but the extent of their contribution has been unknown. Fitness effects of induced mutations in lines of Caenorhabditis elegans were measured using a system for which the number of deleterious point mutations in the DNA can be estimated. In fitness assays, only about 4 percent of the deleterious mutations fixed in each line were detectable. The remaining 96 percent, though cryptic, are significant for mutation load and, potentially, for the evolution of sex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davies, E K -- Peters, A D -- Keightley, P D -- New York, N.Y. -- Science. 1999 Sep 10;285(5434):1748-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Cell, Animal and Population Biology, University of Edinburgh, West Mains Road, Edinburgh EH9 3JT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10481013" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caenorhabditis elegans/*genetics/*physiology ; Computer Simulation ; Crosses, Genetic ; Disorders of Sex Development ; Ethyl Methanesulfonate/pharmacology ; *Genes, Helminth ; Likelihood Functions ; Models, Biological ; Models, Statistical ; Mutagens/pharmacology ; *Point Mutation ; Reproduction ; Selection, Genetic
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    Setting the standards: quality control in the secretory pathway (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-03
    Description: A variety of quality control mechanisms operate in the endoplasmic reticulum and in downstream compartments of the secretory pathway to ensure the fidelity and regulation of protein expression during cell life and differentiation. As a rule, only proteins that pass a stringent selection process are transported to their target organelles and compartments. If proper maturation fails, the aberrant products are degraded. Quality control improves folding efficiency by retaining proteins in the special folding environment of the endoplasmic reticulum, and it prevents harmful effects that could be caused by the deployment of incompletely folded or assembled proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ellgaard, L -- Molinari, M -- Helenius, A -- New York, N.Y. -- Science. 1999 Dec 3;286(5446):1882-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Biochemistry, Swiss Federal Institute of Technology (ETH), Universitatstrasse 16, CH-8092 Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10583943" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Endoplasmic Reticulum/*metabolism ; Glycoproteins/chemistry/metabolism ; Golgi Apparatus/metabolism ; Membrane Proteins/chemistry/metabolism ; Models, Biological ; Molecular Chaperones/metabolism ; Oligosaccharides/metabolism ; Organelles/metabolism ; Protein Conformation ; *Protein Folding ; Proteins/*chemistry/*metabolism/secretion
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    Cell migration--movin' on (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Horwitz, A R -- Parsons, J T -- New York, N.Y. -- Science. 1999 Nov 5;286(5442):1102-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology and Microbiology, Health Sciences Center, University of Virginia, Charlottesville, VA 22908, USA. horwitz@virginia.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610524" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/metabolism ; Animals ; *Cell Adhesion ; Cell Adhesion Molecules/metabolism ; *Cell Movement ; Cytoskeleton/physiology ; Fibroblasts/*cytology/physiology ; Integrins/metabolism ; Microtubules/physiology ; Models, Biological ; Myosin Light Chains/metabolism ; Myosins/metabolism ; cdc42 GTP-Binding Protein/metabolism ; rac GTP-Binding Proteins/metabolism ; rho GTP-Binding Proteins/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The path to specificity (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-02-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zuker, C S -- Ranganathan, R -- New York, N.Y. -- Science. 1999 Jan 29;283(5402):650-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Biology, University of California, San Diego, CA 92093-0649, USA. charles@flyeye.ucsd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9988659" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arrestin/genetics/*metabolism ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Cell Membrane/metabolism ; Enzyme Activation ; GTP-Binding Proteins/metabolism ; Humans ; Models, Biological ; Mutation ; Phosphorylation ; Proto-Oncogene Proteins pp60(c-src)/*metabolism ; Receptor Cross-Talk ; Receptors, Adrenergic, beta-2/*metabolism ; *Signal Transduction ; src Homology Domains
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 26
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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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    Phosphorylation and sequestration of serotonin transporters differentially modulated by psychostimulants (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-31
    Description: Many psychotropic drugs interfere with the reuptake of dopamine, norepinephrine, and serotonin. Transport capacity is regulated by kinase-linked pathways, particularly those involving protein kinase C (PKC), resulting in transporter phosphorylation and sequestration. Phosphorylation and sequestration of the serotonin transporter (SERT) were substantially impacted by ligand occupancy. Ligands that can permeate the transporter, such as serotonin or the amphetamines, prevented PKC-dependent SERT phosphorylation. Nontransported SERT antagonists such as cocaine and antidepressants were permissive for SERT phosphorylation but blocked serotonin effects. PKC-dependent SERT sequestration was also blocked by serotonin. These findings reveal activity-dependent modulation of neurotransmitter reuptake and identify previously unknown consequences of amphetamine, cocaine, and antidepressant action.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ramamoorthy, S -- Blakely, R D -- DA07390/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1999 Jul 30;285(5428):763-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology and Center for Molecular Neuroscience, School of Medicine, Vanderbilt University, Nashville, TN 37232-6420, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10427004" target="_blank"〉PubMed〈/a〉
    Keywords: Antidepressive Agents/metabolism/pharmacology ; Biogenic Monoamines/metabolism/pharmacology ; Biotinylation ; Carrier Proteins/antagonists & inhibitors/*metabolism ; Cell Line ; Central Nervous System Agents/metabolism/*pharmacology ; Cocaine/metabolism/pharmacology ; Dextroamphetamine/metabolism/pharmacology ; Enzyme Activation ; Humans ; Ligands ; Membrane Glycoproteins/antagonists & inhibitors/*metabolism ; *Membrane Transport Proteins ; Models, Biological ; *Nerve Tissue Proteins ; Neurotransmitter Agents/metabolism/*pharmacology ; Phosphorylation ; Protein Kinase C/metabolism ; Protein Kinases/metabolism ; Serotonin/*metabolism/pharmacology ; Serotonin Antagonists/pharmacology ; Serotonin Plasma Membrane Transport Proteins ; Serotonin Uptake Inhibitors/metabolism/pharmacology ; Tetradecanoylphorbol Acetate/pharmacology
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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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    A niche maintaining germ line stem cells in the Drosophila ovary (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-10-13
    Description: Stromal cells are thought to generate specific regulatory microenviroments or "niches" that control stem cell behavior. Characterizing stem cell niches in vivo remains an important goal that has been difficult to achieve. The individual ovarioles of the Drosophila ovary each contain about two germ line stem cells that maintain oocyte production. Here we show that anterior ovariolar somatic cells comprising three cell types act as a germ line stem cell niche. Germ line stem cells lost by normal or induced differentiation are efficiently replaced, and the ability to repopulate the niche increases the functional lifetime of ovarioles in vivo. Our studies implicate one of the somatic cell types, the cap cells, as a key niche component.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xie, T -- Spradling, A C -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2000 Oct 13;290(5490):328-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Embryology, Howard Hughes Medical Institute, Carnegie Institution of Washington, 115 West University Parkway, Baltimore, MD 21210, USA. tgx@stowers-institute.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11030649" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Cell Communication ; Cell Differentiation ; Drosophila/*cytology/physiology ; Female ; Germ Cells/*cytology/physiology ; Intercellular Junctions/physiology ; Models, Biological ; Mutation ; Oocytes/*cytology/physiology ; Ovary/cytology ; Stem Cells/*cytology/physiology ; Stromal Cells/cytology/physiology ; Transgenes
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Perspectives: drug delivery. Regulating export of ER cargo (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-02-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aridor, M -- Balch, W E -- New York, N.Y. -- Science. 2000 Feb 4;287(5454):816-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Biology, Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10691557" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Transport ; Cell Line ; Drug Delivery Systems ; Endoplasmic Reticulum/*metabolism/secretion ; Golgi Apparatus/metabolism ; Growth Hormone/chemistry/metabolism/secretion ; Immunophilins/chemistry/metabolism ; Insulin/chemistry/metabolism/secretion ; Ligands ; Mice ; Models, Biological ; Protein Conformation ; Protein Engineering ; Protein Folding ; Recombinant Fusion Proteins/*chemistry/*metabolism/secretion ; Tacrolimus Binding Proteins
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    Recovery and management options for spring/summer chinook salmon in the Columbia River basin (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-11-04
    Description: Construction of four dams on the lower Snake River (in northwestern United States) between 1961 and 1975 altered salmon spawning habitat, elevated smolt and adult migration mortality, and contributed to severe declines of Snake River salmon populations. By applying a matrix model to long-term population data, we found that (i) dam passage improvements have dramatically mitigated direct mortality associated with dams; (ii) even if main stem survival were elevated to 100%, Snake River spring/summer chinook salmon (Oncorhynchus tshawytscha) would probably continue to decline toward extinction; and (iii) modest reductions in first-year mortality or estuarine mortality would reverse current population declines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kareiva, P -- Marvier, M -- McClure, M -- New York, N.Y. -- Science. 2000 Nov 3;290(5493):977-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Marine Fisheries Service, Northwest Fisheries Science Center, 2725 Montlake Boulevard East, Seattle, WA 98112, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11062128" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources ; *Ecosystem ; Female ; Fresh Water ; Male ; Models, Biological ; Models, Statistical ; Northwestern United States ; Population Dynamics ; *Salmon/growth & development/physiology ; Survival Rate
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    Insect population control using a dominant, repressible, lethal genetic system (2000)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2000-03-31
    Description: A major modification to the sterile insect technique is described, in which transgenic insects homozygous for a dominant, repressible, female-specific lethal gene system are used. We demonstrate two methods that give the required genetic characteristics in an otherwise wild-type genetic background. The first system uses a sex-specific promoter or enhancer to drive the expression of a repressible transcription factor, which in turn controls the expression of a toxic gene product. The second system uses non-sex-specific expression of the repressible transcription factor to regulate a selectively lethal gene product. Both methods work efficiently in Drosophila melanogaster, and we expect these principles to be widely applicable to more economically important organisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thomas, D D -- Donnelly, C A -- Wood, R J -- Alphey, L S -- New York, N.Y. -- Science. 2000 Mar 31;287(5462):2474-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, Wellcome Trust Centre for the Epidemiology of Infectious Disease, Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10741964" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Crosses, Genetic ; DNA-Binding Proteins ; *Drosophila Proteins ; Drosophila melanogaster/*genetics ; Egg Proteins/genetics ; Enhancer Elements, Genetic ; Fat Body/metabolism ; Female ; Gene Expression Regulation ; *Genes, Dominant ; *Genes, Insect ; *Genes, Lethal ; Genes, ras ; Homozygote ; Male ; Models, Biological ; Nuclear Proteins/genetics ; *Pest Control, Biological ; Promoter Regions, Genetic ; Tetracycline/pharmacology ; Trans-Activators/genetics ; Transcription Factors/genetics
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    Neurobiology. A stargazer foretells the way to the synapse (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-24
    Description: How do AMPA receptors that are made in the cytoplasm of excitatory neurons travel to and become localized in the distant postsynaptic membranes of dendrites? Nakagawa and Sheng, in a Perspective, suggest that the answer may lie in the stargazin protein that has now been found to interact with AMPA receptors, guiding them to the postsynaptic membrane.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakagawa, T -- Sheng, M -- New York, N.Y. -- Science. 2000 Dec 22;290(5500):2270-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Harvard Medical School and Massachusetts General Hospital, Boston, Massachusetts, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11188726" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium Channels/chemistry/genetics/*metabolism ; Cell Membrane/metabolism ; Cerebellum/cytology/*metabolism ; Dendrites/metabolism ; Mice ; Mice, Mutant Strains ; Models, Biological ; Nerve Tissue Proteins/metabolism ; Neurons/*metabolism ; Protein Binding ; Protein Transport ; Receptors, AMPA/*metabolism ; Synapses/metabolism ; Synaptic Membranes/*metabolism ; Synaptic Transmission
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    Cell biology. Actin' up with Rac1 (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-24
    Description: The elegant architecture of photoreceptor cells in the retina is dependent on organization of the actin cytoskeleton during eye development. But what drives this organization? In an equally elegant Perspective, Colley explains new findings in fruit flies (Chang and Ready) that point to the photopigment rhodopsin and its signaling molecule the Rho GTPase Drac1 as the orchestrators of actin organization and the consequent assembly of the sensory membrane in the photoreceptor cell.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Colley, N J -- R01 EY008768/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 2000 Dec 8;290(5498):1902-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ophthalmology and Visual Sciences, University of Wisconsin, Madison, WI 53706, USA. njcolley@facstaff.wisc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11187046" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/metabolism/*ultrastructure ; Amino Acid Motifs ; Animals ; Drosophila ; *Drosophila Proteins ; Enzyme Activation ; Humans ; Models, Biological ; Morphogenesis ; Photoreceptor Cells, Invertebrate/cytology/*growth & ; development/metabolism/*ultrastructure ; Retina/growth & development/ultrastructure ; Retinitis Pigmentosa/genetics/metabolism/pathology ; Rhodopsin/chemistry/*metabolism ; Signal Transduction ; rac GTP-Binding Proteins/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Academic employment. UCSF researchers leave, charging bias (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 2000 Apr 7;288(5463):26-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10766628" target="_blank"〉PubMed〈/a〉
    Keywords: *Employment ; *Faculty ; Female ; Humans ; Mathematics ; Models, Biological ; *Prejudice ; Research ; *Universities
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Mechanism of actin-based motility (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-05-31
    Description: Spatially controlled polymerization of actin is at the origin of cell motility and is responsible for the formation of cellular protrusions like lamellipodia. The pathogens Listeria monocytogenes and Shigella flexneri, which undergo actin-based propulsion, are acknowledged models of the leading edge of lamellipodia. Actin-based motility of the bacteria or of functionalized microspheres can be reconstituted in vitro from only five pure proteins. Movement results from the regulated site-directed treadmilling of actin filaments, consistent with observations of actin dynamics in living motile cells and with the biochemical properties of the components of the synthetic motility medium.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pantaloni, D -- Le Clainche, C -- Carlier, M F -- New York, N.Y. -- Science. 2001 May 25;292(5521):1502-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dynamique du Cytosquelette, Laboratoire d'Enzymologie et Biochimie Structurales, CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11379633" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Depolymerizing Factors ; Actin-Related Protein 2 ; Actin-Related Protein 3 ; Actins/metabolism/*physiology ; Adenosine Triphosphate/metabolism ; Animals ; Bacterial Proteins/metabolism ; Biopolymers ; *Cell Movement ; *Cytoskeletal Proteins ; Destrin ; Listeria monocytogenes/*physiology ; Microfilament Proteins/metabolism ; Models, Biological ; Movement ; Proteins/metabolism ; Pseudopodia/physiology ; Signal Transduction ; Wiskott-Aldrich Syndrome Protein
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    Profile. Shirley Tilghman: Princeton's unconventional new chief (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-05-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 2001 May 18;292(5520):1288-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11360977" target="_blank"〉PubMed〈/a〉
    Keywords: *Administrative Personnel ; Animals ; Cloning, Molecular ; Gene Silencing ; Genomic Imprinting ; History, 20th Century ; History, 21st Century ; New Jersey ; Prejudice ; Universities/history/*organization & administration
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    Cell biology. A lipid oils the endocytosis machine (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gillooly, D J -- Stenmark, H -- New York, N.Y. -- Science. 2001 Feb 9;291(5506):993-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Norwegian Radium Hospital, Montebello, N-0310 Oslo, Norway.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11232585" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Vesicular Transport ; Binding Sites ; Carrier Proteins/chemistry/*metabolism ; Cell Membrane/metabolism ; Clathrin/metabolism ; Coated Pits, Cell-Membrane/metabolism ; *Endocytosis ; Models, Biological ; Nerve Tissue Proteins/chemistry/*metabolism ; Neuropeptides/chemistry/*metabolism ; Phosphatidylinositol 4,5-Diphosphate/*metabolism ; Phosphoproteins/chemistry/*metabolism ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; *Vesicular Transport Proteins
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    The people. Ruth Kirschstein and Alan Rabson (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-06-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 2001 Jun 15;292(5524):1989.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11408636" target="_blank"〉PubMed〈/a〉
    Keywords: Administrative Personnel/history ; History, 20th Century ; History, 21st Century ; National Institutes of Health (U.S.)/history/*organization & administration ; United States
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    Universities. Princeton pick biologist Tilghman as president (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-05-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 2001 May 11;292(5519):1040-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11352040" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Genome ; Genomic Imprinting ; History, 21st Century ; Humans ; New Jersey ; Universities/*organization & administration
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    Predictability of the UK variant Creutzfeldt-Jakob disease epidemic (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-10-27
    Description: Back-calculation analysis of the variant Creutzfeldt-Jakob disease epidemic in the United Kingdom is used to estimate the number of infected individuals and future disease incidence. The model assumes a hazard of infection proportional to the incidence of bovine spongiform encephalopathy in the United Kingdom and accounts for precautionary control measures and very wide ranges of incubation periods. The model indicates that current case data are compatible with numbers of infections ranging from a few hundred to several millions. In the latter case, the model suggests that the mean incubation period must be well beyond the human life-span, resulting in disease epidemics of at most several thousand cases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉d'Aignaux, J N -- Cousens, S N -- Smith, P G -- New York, N.Y. -- Science. 2001 Nov 23;294(5547):1729-31. Epub 2001 Oct 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉London School of Hygiene and Tropical Medicine, Infectious Disease Epidemiology Unit, Keppel Street, London WC1E 7HT, UK. jerome.huillard@lshtm.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11679631" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Age Distribution ; Age Factors ; Age of Onset ; Animals ; Cattle ; Child ; Child, Preschool ; Creutzfeldt-Jakob Syndrome/*epidemiology/genetics/transmission ; Diet ; Disease Susceptibility ; Encephalopathy, Bovine Spongiform/epidemiology ; Genetic Variation/*genetics ; Genotype ; Great Britain/epidemiology ; Humans ; Incidence ; Infant ; Likelihood Functions ; Methionine/genetics ; Mice ; Models, Biological ; Prevalence ; Prions/administration & dosage/genetics
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    Dam breaching and chinook salmon recovery (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dambacher, J M -- Rossignol, P A -- Li, H W -- Emlen, J M -- New York, N.Y. -- Science. 2001 Feb 9;291(5506):939.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR 97331, USA. dambacherj@fsl.orst.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11161208" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources ; *Ecosystem ; Fresh Water ; Models, Biological ; Models, Statistical ; Northwestern United States ; Population Dynamics ; *Salmon/growth & development/physiology ; Survival Rate
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    Champion of chromatin. Alan Wolffe (1959-2001) (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-08-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 2001 Aug 10;293(5532):1065.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11498571" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromatin/physiology ; England ; Gene Expression Regulation ; History, 20th Century ; History, 21st Century ; Molecular Biology/history ; United States
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    NIH appointment: Texas oncologist gets cancer institute post (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-12-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 2001 Dec 14;294(5550):2263-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11743168" target="_blank"〉PubMed〈/a〉
    Keywords: History, 21st Century ; Humans ; Medical Oncology/history ; National Institutes of Health (U.S.)/*organization & administration ; *Neoplasms ; United States
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    NASA. Goldin quits top space agency post, but his legacy lingers (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-10-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawler, A -- New York, N.Y. -- Science. 2001 Oct 26;294(5543):758-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11679636" target="_blank"〉PubMed〈/a〉
    Keywords: *Exobiology/history ; Extraterrestrial Environment ; History, 20th Century ; History, 21st Century ; *Space Flight/history ; United States ; United States National Aeronautics and Space Administration/history/*organization ; & administration
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    Cell biology. Caveolae--not just craters in the cellular landscape (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-08-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shin, J S -- Abraham, S N -- New York, N.Y. -- Science. 2001 Aug 24;293(5534):1447-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, 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/11520975" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/*metabolism/pathogenicity ; Bacterial Toxins/metabolism ; Caveolae/chemistry/microbiology/*physiology/ultrastructure ; Cytoskeleton/metabolism ; *Endocytosis ; Eukaryota/*metabolism/pathogenicity ; Lysosomes/physiology ; Membrane Fusion ; Membrane Microdomains/chemistry/microbiology/physiology/ultrastructure ; Models, Biological ; Viruses/*metabolism/pathogenicity
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    Infectious diseases. Rapid response could have curbed foot-and-mouth epidemic (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-10-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, M -- New York, N.Y. -- Science. 2001 Oct 5;294(5540):26-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11588223" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Communicable Disease Control ; Disease Outbreaks/*veterinary ; Foot-and-Mouth Disease/*epidemiology/transmission ; Great Britain/epidemiology ; Models, Biological ; Models, Statistical
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    Structural biology. The xyz of ABC transporters (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-09-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Higgins, C F -- Linton, K J -- New York, N.Y. -- Science. 2001 Sep 7;293(5536):1782-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MRC Clinical Sciences Centre, Imperial College School of Medicine, Hammersmith Hospital Campus, DuCane Road, London W12 0NN, UK. christopher.higgins@csc.mrc.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11546861" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/*chemistry/metabolism ; Adenosine Triphosphate/metabolism ; Bacterial Proteins/*chemistry/metabolism ; Cell Membrane/metabolism ; Crystallization ; Crystallography, X-Ray/methods ; Dimerization ; Escherichia coli/*chemistry ; Membrane Proteins/*chemistry/metabolism ; Models, Biological ; P-Glycoprotein/chemistry/metabolism ; Protein Structure, Secondary ; Protein Structure, Tertiary
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    Global warming: an insignificant trend? (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-05-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Singer, S F -- New York, N.Y. -- Science. 2001 May 11;292(5519):1063-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11352049" target="_blank"〉PubMed〈/a〉
    Keywords: Conservation of Energy Resources ; *Greenhouse Effect ; Ice ; Models, Biological ; National Academy of Sciences (U.S.) ; Oceans and Seas ; Risk Assessment ; United Nations ; United States
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    Biomedicine. Clotting factors build blood vessels (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-09-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carmeliet, P -- New York, N.Y. -- Science. 2001 Aug 31;293(5535):1602-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University Leuven, Herestraat 49, Leuven, B-3000, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11533466" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Blood Coagulation ; Blood Coagulation Factors/*physiology ; Blood Vessels/*embryology ; Cell Differentiation ; DNA-Binding Proteins/physiology ; Embryonic and Fetal Development ; Endothelial Growth Factors/physiology ; Endothelium, Vascular/*cytology/embryology/physiology ; Hemostasis ; Hypoxia-Inducible Factor 1 ; Hypoxia-Inducible Factor 1, alpha Subunit ; Lymphokines/physiology ; Mice ; Models, Biological ; Muscle, Smooth, Vascular/cytology/physiology ; *Neovascularization, Physiologic ; Nuclear Proteins/physiology ; Receptor, PAR-1 ; Receptors, Thrombin/genetics/*physiology ; Signal Transduction ; Thrombin/physiology ; Thromboplastin/physiology ; *Transcription Factors ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
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    Psychopharmacology. Drug critic sues after school pulls job offer (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-10-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 2001 Oct 5;294(5540):29-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11588226" target="_blank"〉PubMed〈/a〉
    Keywords: Canada ; Drug Industry ; Employment/*legislation & jurisprudence ; Expert Testimony ; Great Britain ; History, 21st Century ; Humans ; Psychiatry/history ; Psychopharmacology/history ; Publishing ; Serotonin Uptake Inhibitors/*adverse effects ; Universities/*legislation & jurisprudence/organization & administration
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    Nonequilibrium diversity dynamics of the Lesser Antillean avifauna (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-11-17
    Description: MacArthur and Wilson's model of island diversity predicts an increase in the number of species until colonization and extinction are balanced at a long-term steady state. We appraise this model on an evolutionary time scale by molecular phylogenetic analysis of the colonization of the Lesser Antilles by small land birds. The pattern of accumulation of species with time, estimated by genetic divergence between island and source lineages, rejects a homogeneous model of colonization and extinction. Rather, our results suggest an abrupt, roughly 10-fold increase in colonization rate or a 90% mass extinction event 0.55 to 0.75 million years ago.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ricklefs, R E -- Bermingham, E -- New York, N.Y. -- Science. 2001 Nov 16;294(5546):1522-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Missouri-St. Louis, St. Louis, MO 63121, USA. ricklefs@umsl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11711673" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Birds/genetics/physiology ; DNA, Mitochondrial/genetics ; *Ecosystem ; *Genetic Variation ; Geography ; Mathematics ; Models, Biological ; Models, Statistical ; Phylogeny ; Population Density ; Population Dynamics ; Sequence Analysis, DNA ; *Songbirds/genetics/physiology ; Stochastic Processes ; West Indies
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    The human genome. Unsung heroes (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2001 Feb 16;291(5507):1207.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11233442" target="_blank"〉PubMed〈/a〉
    Keywords: Computational Biology/history ; Genome, Human ; History, 20th Century ; History, 21st Century ; Human Genome Project/*history ; Humans ; Research Personnel/*history ; Sequence Analysis, DNA/history
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    Essays on science and society. Cosmology and 21st-century culture (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-09-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abrams, N E -- Primack, J R -- New York, N.Y. -- Science. 2001 Sep 7;293(5536):1769-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Physics Department, University of California, Santa Cruz, CA 95064, USA. nancy@physics.ucsc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11546855" target="_blank"〉PubMed〈/a〉
    Keywords: Bible ; Civilization/history ; *Culture ; Earth (Planet) ; History, 15th Century ; History, 16th Century ; History, 17th Century ; History, 18th Century ; History, 19th Century ; History, 20th Century ; History, 21st Century ; History, Ancient ; History, Medieval ; *Religion and Science ; Research/trends ; Research Design ; Science/*history/methods/*trends ; *Solar System
    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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    Biomedical research. Case Institute a false start (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-12-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, D -- New York, N.Y. -- Science. 2001 Dec 21;294(5551):2449.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11752543" target="_blank"〉PubMed〈/a〉
    Keywords: Academies and Institutes/*organization & administration ; Biological Science Disciplines ; Government ; History, 21st Century ; National Academy of Sciences (U.S.)/*organization & administration ; National Institutes of Health (U.S.)/organization & administration ; Neoplasms ; *Terrorism ; United States
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The foot-and-mouth epidemic in Great Britain: pattern of spread and impact of interventions (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-04-17
    Description: We present an analysis of the current foot-and-mouth disease epidemic in Great Britain over the first 2 months of the spread of the virus. The net transmission potential of the pathogen and the increasing impact of control measures are estimated over the course of the epidemic to date. These results are used to parameterize a mathematical model of disease transmission that captures the differing spatial contact patterns between farms before and after the imposition of movement restrictions. The model is used to make predictions of future incidence and to simulate the impact of additional control strategies. Hastening the slaughter of animals with suspected infection is predicted to slow the epidemic, but more drastic action, such as "ring" culling or vaccination around infection foci, is necessary for more rapid control. Culling is predicted to be more effective than vaccination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ferguson, N M -- Donnelly, C A -- Anderson, R M -- New York, N.Y. -- Science. 2001 May 11;292(5519):1155-60. Epub 2001 Apr 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Infectious Disease Epidemiology, Imperial College School of Medicine, St. Mary's Campus, Norfolk Place, London W2 1PG, UK. Neil.Ferguson@ic.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11303090" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Domestic/virology ; Aphthovirus/physiology ; Cattle ; Commerce ; Disease Reservoirs ; Foot-and-Mouth Disease/economics/epidemiology/*prevention & control/*transmission ; Great Britain/epidemiology ; Incidence ; Models, Biological ; Quarantine ; Sheep/virology ; Swine/virology ; Time Factors ; Vaccination/economics
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    The human genome. Controversial from the start (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 2001 Feb 16;291(5507):1182-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11233424" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Databases, Factual ; Financing, Government/history ; *Genome, Human ; History, 20th Century ; History, 21st Century ; Human Genome Project/economics/*history ; Humans ; Interpersonal Relations ; National Institutes of Health (U.S.)/history ; Patents as Topic/history ; Private Sector ; Public Sector ; Research Support as Topic/history ; Sequence Analysis, DNA/*history/instrumentation/methods ; United States
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    A history of the Human Genome Project (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- Davenport, R J -- Pennisi, E -- Marshall, E -- New York, N.Y. -- Science. 2001 Feb 16;291(5507):1195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11233436" target="_blank"〉PubMed〈/a〉
    Keywords: Genome, Human ; History, 20th Century ; History, 21st Century ; Human Genome Project/*history ; Humans ; Sequence Analysis, DNA/*history/methods
    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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    University of Rochester. Researcher sues after school spent his grant (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-05-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 2001 Apr 20;292(5516):411.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11330275" target="_blank"〉PubMed〈/a〉
    Keywords: History, 21st Century ; Laboratories ; New York ; Psychoneuroimmunology/history ; Research Support as Topic/*legislation & jurisprudence ; Universities/*legislation & jurisprudence
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    Biomedical research. Leshner named to lead AAAS (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-11-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, D -- New York, N.Y. -- Science. 2001 Nov 2;294(5544):970.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11691957" target="_blank"〉PubMed〈/a〉
    Keywords: Administrative Personnel ; History, 21st Century ; National Institutes of Health (U.S.)/organization & administration ; Science ; Societies, Scientific/*organization & administration ; United States
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    Biomedical philanthropy. Klausner makes case for new foundation (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-10-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, D -- New York, N.Y. -- Science. 2001 Oct 19;294(5542):493.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11641471" target="_blank"〉PubMed〈/a〉
    Keywords: Academies and Institutes/economics/*organization & administration ; Computational Biology ; History, 21st Century ; National Institutes of Health (U.S.)/organization & administration ; Neoplasms ; Research Support as Topic ; United States
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Crystal structure of Arp2/3 complex (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-11-27
    Description: We determined a crystal structure of bovine Arp2/3 complex, an assembly of seven proteins that initiates actin polymerization in eukaryotic cells, at 2.0 angstrom resolution. Actin-related protein 2 (Arp2) and Arp3 are folded like actin, with distinctive surface features. Subunits ARPC2 p34 and ARPC4 p20 in the core of the complex associate through long carboxyl-terminal alpha helices and have similarly folded amino-terminal alpha/beta domains. ARPC1 p40 is a seven-blade beta propeller with an insertion that may associate with the side of an actin filament. ARPC3 p21 and ARPC5 p16 are globular alpha-helical subunits. We predict that WASp/Scar proteins activate Arp2/3 complex by bringing Arp2 into proximity with Arp3 for nucleation of a branch on the side of a preexisting actin filament.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robinson, R C -- Turbedsky, K -- Kaiser, D A -- Marchand, J B -- Higgs, H N -- Choe, S -- Pollard, T D -- GM-26132/GM/NIGMS NIH HHS/ -- GM-26338/GM/NIGMS NIH HHS/ -- GM-56653/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2001 Nov 23;294(5547):1679-84.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Structural Biology Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11721045" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/*chemistry/*metabolism ; Actin-Related Protein 2 ; Actin-Related Protein 3 ; Actins/*chemistry/*metabolism ; Adenosine Triphosphate/metabolism ; Animals ; Cattle ; Crystallography, X-Ray ; *Cytoskeletal Proteins ; Macromolecular Substances ; Models, Biological ; Models, Molecular ; Muscle, Skeletal ; Protein Structure, Quaternary ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Subunits ; Static Electricity ; Thymus Gland
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    Essays on science and society. Is a new eugenics afoot? (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-10-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allen, G E -- New York, N.Y. -- Science. 2001 Oct 5;294(5540):59-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Washington University, St. Louis, MO 63130, USA. allen@biology.wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11588239" target="_blank"〉PubMed〈/a〉
    Keywords: Eugenics/*history/legislation & jurisprudence ; Female ; Genetics, Medical/*history ; History, 19th Century ; History, 20th Century ; History, 21st Century ; Humans ; Male ; Pedigree ; Reproduction ; Social Problems/*history ; Western World
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    Marco Baggiolini. Riding off into an alpine sunset--or sunrise (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-09-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koenig, R -- New York, N.Y. -- Science. 2001 Aug 31;293(5535):1585.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11533461" target="_blank"〉PubMed〈/a〉
    Keywords: Allergy and Immunology/history ; Chemokines/physiology ; Faculty ; History, 20th Century ; History, 21st Century ; Italy ; Switzerland ; *Universities/organization & administration
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    Essays on science and society. Romanticism, race, and recapitulation (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-12-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finkelstein, G -- New York, N.Y. -- Science. 2001 Dec 7;294(5549):2101-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of History, University of Colorado at Denver, Denver, CO 80217-3364, USA. gabriel.finkelstein@cudenver.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11739938" target="_blank"〉PubMed〈/a〉
    Keywords: Biological Evolution ; Civilization/*history ; Continental Population Groups/*history ; *Culture ; History, 18th Century ; History, 19th Century ; History, 20th Century ; History, 21st Century ; Humans ; Social Class
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    Dinosaur motion. Did saurian predators fold up on turns? (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-09-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stokstad, E -- New York, N.Y. -- Science. 2001 Aug 31;293(5535):1572.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11533452" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomechanical Phenomena ; Extremities/anatomy & histology/physiology ; Humans ; Kinesis ; *Locomotion ; Models, Biological ; Movement ; Posture ; Reptiles/*anatomy & histology/*physiology ; Tail/anatomy & histology/physiology
    Print ISSN: 0036-8075
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    Integrated genomic and proteomic analyses of a systematically perturbed metabolic network (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-05-08
    Description: We demonstrate an integrated approach to build, test, and refine a model of a cellular pathway, in which perturbations to critical pathway components are analyzed using DNA microarrays, quantitative proteomics, and databases of known physical interactions. Using this approach, we identify 997 messenger RNAs responding to 20 systematic perturbations of the yeast galactose-utilization pathway, provide evidence that approximately 15 of 289 detected proteins are regulated posttranscriptionally, and identify explicit physical interactions governing the cellular response to each perturbation. We refine the model through further iterations of perturbation and global measurements, suggesting hypotheses about the regulation of galactose utilization and physical interactions between this and a variety of other metabolic pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ideker, T -- Thorsson, V -- Ranish, J A -- Christmas, R -- Buhler, J -- Eng, J K -- Bumgarner, R -- Goodlett, D R -- Aebersold, R -- Hood, L -- New York, N.Y. -- Science. 2001 May 4;292(5518):929-34.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Institute for Systems Biology, 4225 Roosevelt Way NE, Suite 200, Seattle, WA 98105, USA. tideker@systemsbiology.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11340206" target="_blank"〉PubMed〈/a〉
    Keywords: Computational Biology ; Culture Media ; Databases, Factual ; Fungal Proteins/metabolism ; Galactose/*metabolism ; Galactosephosphates/metabolism ; *Gene Expression Profiling ; Gene Expression Regulation, Fungal ; *Genome, Fungal ; Models, Biological ; Models, Genetic ; Monosaccharide Transport Proteins/metabolism ; Mutation ; Oligonucleotide Array Sequence Analysis ; *Proteome ; RNA, Fungal/genetics/metabolism ; RNA, Messenger/genetics/metabolism ; Saccharomyces cerevisiae/genetics/*metabolism ; *Saccharomyces cerevisiae Proteins
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    Biomedical appointments. White House adviser tapped to head FDA (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-10-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin, Jennifer -- New York, N.Y. -- Science. 2002 Oct 4;298(5591):36-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12364757" target="_blank"〉PubMed〈/a〉
    Keywords: History, 21st Century ; Politics ; United States ; United States Food and Drug Administration/*organization & administration
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    MAP kinase phosphatase as a locus of flexibility in a mitogen-activated protein kinase signaling network (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-08-10
    Description: Intracellular signaling networks receive and process information to control cellular machines. The mitogen-activated protein kinase (MAPK) 1,2/protein kinase C (PKC) system is one such network that regulates many cellular machines, including the cell cycle machinery and autocrine/paracrine factor synthesizing machinery. We used a combination of computational analysis and experiments in mouse NIH-3T3 fibroblasts to understand the design principles of this controller network. We find that the growth factor-stimulated signaling network containing MAPK 1, 2/PKC can operate with one (monostable) or two (bistable) stable states. At low concentrations of MAPK phosphatase, the system exhibits bistable behavior, such that brief stimulus results in sustained MAPK activation. The MAPK-induced increase in the amounts of MAPK phosphatase eliminates the prolonged response capability and moves the network to a monostable state, in which it behaves as a proportional response system responding acutely to stimulus. Thus, the MAPK 1, 2/PKC controller network is flexibly designed, and MAPK phosphatase may be critical for this flexible response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bhalla, Upinder S -- Ram, Prahlad T -- Iyengar, Ravi -- CA-79134/CA/NCI NIH HHS/ -- CA-81050/CA/NCI NIH HHS/ -- GM-54508/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2002 Aug 9;297(5583):1018-23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Center for Biological Sciences, Bangalore 560065 India. bhalla@ncbs.res.in〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12169734" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Adaptation, Physiological ; Animals ; *Cell Cycle Proteins ; Computer Simulation ; Dose-Response Relationship, Drug ; Dual Specificity Phosphatase 1 ; *Feedback, Physiological ; Immediate-Early Proteins/*metabolism ; *MAP Kinase Signaling System ; Mathematics ; Mice ; Mitogen-Activated Protein Kinase 1/*metabolism ; Mitogen-Activated Protein Kinase 3 ; Mitogen-Activated Protein Kinases/*metabolism ; Models, Biological ; Phospholipases A/antagonists & inhibitors/metabolism ; Phosphoprotein Phosphatases/metabolism ; Phosphorylation ; Protein Kinase C/metabolism ; Protein Phosphatase 1 ; Protein Tyrosine Phosphatases/*metabolism
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    A phase separation model for the nanopatterning of diatom biosilica (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-03-30
    Description: Diatoms are encased in an intricately patterned wall that consists of amorphous silica. Species-specific fabrication of this ornate biomineral enables taxonomists to identify thousands of diatom species. The molecular mechanisms that control this nanofabrication and generate the diversity of patterns is not well understood. A simple model is described, in which repeated phase separation events during wall biogenesis are assumed to produce self-similar silica patterns in smaller and smaller scales. On the basis of this single assumption, the apparently complex patterns found in the valves of the diatom genus Coscinodiscus can be predicted. Microscopic analysis of valves in statu nascendi from three different Coscinodiscus species supports the conclusions derived from the model.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sumper, Manfred -- New York, N.Y. -- Science. 2002 Mar 29;295(5564):2430-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lehrstuhl Biochemie I, Universitat Regensburg, 93053 Regensburg, Germany. manfred.sumper@vkl.uni-regensburg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11923533" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Wall/*chemistry/metabolism/ultrastructure ; Chemical Precipitation ; Diatoms/*chemistry/classification/metabolism/ultrastructure ; Microscopy, Electron, Scanning ; Models, Biological ; Morphogenesis ; Polyamines/analysis/metabolism ; Polymers ; Silicic Acid/chemistry/metabolism ; Silicon Dioxide/*chemistry/metabolism ; Species Specificity
    Print ISSN: 0036-8075
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    Extension of life-span in Caenorhabditis elegans by a diet lacking coenzyme Q (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-01-05
    Description: The isoprenylated benzoquinone coenzyme Q is a redox-active lipid essential for electron transport in aerobic respiration. Here, we show that withdrawal of coenzyme Q (Q) from the diet of wild-type nematodes extends adult life-span by approximately 60%. The longevity of clk-1, daf-2, daf-12, and daf-16 mutants is also extended by a Q-less diet. These results establish the importance of Q in life-span determination. The findings suggest that Q and the daf-2 pathway intersect at the mitochondria and imply that a concerted production coupled with enhanced scavenging of reactive oxygen species contributes to the substantial life-span extension.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Larsen, Pamela L -- Clarke, Catherine F -- New York, N.Y. -- Science. 2002 Jan 4;295(5552):120-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, 607 Charles E. Young Drive East, Box 951569, University of California, Los Angeles, CA 90095, USA. larsen@chem.ucla.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11778046" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Animals ; Caenorhabditis elegans/genetics/growth & development/metabolism/*physiology ; Caenorhabditis elegans Proteins/genetics/metabolism ; Diet ; Escherichia coli/genetics/metabolism ; Fermentation ; Forkhead Transcription Factors ; Genes, Helminth ; Helminth Proteins/genetics/metabolism ; Larva/growth & development/metabolism ; *Longevity ; Mitochondria/metabolism ; Models, Biological ; Mutation ; Oxidation-Reduction ; Oxygen Consumption ; Phenotype ; Reactive Oxygen Species/metabolism ; Receptor, Insulin/genetics/metabolism ; Receptors, Cytoplasmic and Nuclear/genetics/metabolism ; Signal Transduction ; Transcription Factors/genetics/metabolism ; Ubiquinone/administration & dosage/*metabolism
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    Cell biology. Molecular motors move in mysterious ways (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-02-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin, Jennifer -- New York, N.Y. -- Science. 2002 Feb 1;295(5556):780-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11823612" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Kinesin/metabolism/*physiology ; Microtubules/*physiology ; Models, Biological ; Molecular Motor Proteins/metabolism/*physiology ; Movement ; Rotation
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    Economic espionage. Researcher acquitted of lab theft charge (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-08-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawler, Andrew -- New York, N.Y. -- Science. 2002 Aug 30;297(5586):1463.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12202797" target="_blank"〉PubMed〈/a〉
    Keywords: California ; China ; Gels ; History, 21st Century ; Ophthalmology/history ; Proteins ; Theft/history/*legislation & jurisprudence ; United States ; *Universities/history
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    Geographic range size and determinants of avian species richness (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-08-31
    Description: Geographic patterns in species richness are mainly based on wide-ranging species because their larger number of distribution records has a disproportionate contribution to the species richness counts. Here we demonstrate how this effect strongly influences our understanding of what determines species richness. Using both conventional and spatial regression models, we show that for sub-Saharan African birds, the apparent role of productivity diminishes with decreasing range size, whereas the significance of topographic heterogeneity increases. The relative importance of geometric constraints from the continental edge is moderate. Our findings highlight the failure of traditional species richness models to account for narrow-ranging species that frequently are also threatened.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jetz, Walter -- Rahbek, Carsten -- New York, N.Y. -- Science. 2002 Aug 30;297(5586):1548-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Oxford, Oxford OX1 3PS, UK. walter.jetz@zoo.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12202829" target="_blank"〉PubMed〈/a〉
    Keywords: Africa South of the Sahara ; Animals ; *Birds/physiology ; Climate ; *Ecosystem ; Homing Behavior ; Models, Biological ; Regression Analysis
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    A genomic regulatory network for development (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-03-02
    Description: Development of the body plan is controlled by large networks of regulatory genes. A gene regulatory network that controls the specification of endoderm and mesoderm in the sea urchin embryo is summarized here. The network was derived from large-scale perturbation analyses, in combination with computational methodologies, genomic data, cis-regulatory analysis, and molecular embryology. The network contains over 40 genes at present, and each node can be directly verified at the DNA sequence level by cis-regulatory analysis. Its architecture reveals specific and general aspects of development, such as how given cells generate their ordained fates in the embryo and why the process moves inexorably forward in developmental time.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davidson, Eric H -- Rast, Jonathan P -- Oliveri, Paola -- Ransick, Andrew -- Calestani, Cristina -- Yuh, Chiou-Hwa -- Minokawa, Takuya -- Amore, Gabriele -- Hinman, Veronica -- Arenas-Mena, Cesar -- Otim, Ochan -- Brown, C Titus -- Livi, Carolina B -- Lee, Pei Yun -- Revilla, Roger -- Rust, Alistair G -- Pan, Zheng jun -- Schilstra, Maria J -- Clarke, Peter J C -- Arnone, Maria I -- Rowen, Lee -- Cameron, R Andrew -- McClay, David R -- Hood, Leroy -- Bolouri, Hamid -- GM-61005/GM/NIGMS NIH HHS/ -- HD-37105/HD/NICHD NIH HHS/ -- RR-06591/RR/NCRR NIH HHS/ -- RR-15044/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2002 Mar 1;295(5560):1669-78.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, California Institute of Technology, Pasadena, CA 91125, USA. davidson@caltech.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11872831" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Lineage ; Computational Biology ; Embryonic Development ; Endoderm/cytology/*physiology ; Gene Expression Profiling ; *Gene Expression Regulation, Developmental ; Genes, Regulator ; *Genome ; Mesoderm/cytology/*physiology ; Models, Biological ; Models, Genetic ; Morphogenesis ; Regulatory Sequences, Nucleic Acid ; Sea Urchins/*embryology/*genetics ; Stem Cells/physiology ; Systems Theory
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    Fisheries research. No more surprises from evanescent squid (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bostanci, Adam -- New York, N.Y. -- Science. 2002 May 10;296(5570):1000-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12004093" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atlantic Ocean ; *Decapodiformes/physiology ; Falkland Islands ; *Fisheries ; Forecasting ; Models, Biological ; Seawater ; Temperature ; Water Movements
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    Essential role for the SMN complex in the specificity of snRNP assembly (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-12-03
    Description: The Survival of Motor Neurons (SMN) protein, the product of the spinal muscular atrophy-determining gene, is part of a large macromolecular complex (SMN complex) that functions in the assembly of spliceosomal small nuclear ribonucleoproteins (snRNPs). Using cell extracts and purified components, we demonstrated that the SMN complex is necessary and sufficient to mediate the ATP-dependent assembly of the core of seven Sm proteins on uridine-rich, small nuclear ribonucleic acids (U snRNAs). In vitro experiments revealed strict requirements for ordered binding of the Sm proteins and the U snRNAs to the SMN complex. Importantly, the SMN complex is necessary to ensure that Sm cores assemble only on correct RNA targets and prevent their otherwise promiscuous association with other RNAs. Thus, the SMN complex functions as a specificity factor essential for the efficient assembly of Sm proteins on U snRNAs and likely protects cells from illicit, and potentially deleterious, nonspecific binding of Sm proteins to RNAs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pellizzoni, Livio -- Yong, Jeongsik -- Dreyfuss, Gideon -- New York, N.Y. -- Science. 2002 Nov 29;298(5599):1775-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Biochemistry and Biophysics, University of Pennsylvania School of Medicine, Philadelphia, PA 19104-6148, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12459587" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Carrier Proteins/metabolism ; Cell Extracts ; Cyclic AMP Response Element-Binding Protein ; DEAD Box Protein 20 ; DEAD-box RNA Helicases ; HeLa Cells ; Humans ; Kinetics ; Models, Biological ; Nerve Tissue Proteins/isolation & purification/*metabolism ; Nuclear Proteins/metabolism ; Oligoribonucleotides/metabolism ; Protein Binding ; RNA Helicases/metabolism ; RNA, Small Nuclear/*metabolism ; RNA-Binding Proteins ; Ribonucleoproteins, Small Nuclear/isolation & purification/*metabolism ; SMN Complex Proteins
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    Mantophasmatodea: a new insect order? (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-08-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tilgner, Erich -- New York, N.Y. -- Science. 2002 Aug 2;297(5582):731; discussion 731.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fernback Science Center, 156 Heaton Park Drive, Atlanta, GA 30307, USA. phasmida@msn.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12161616" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; *Fossils ; Insects/anatomy & histology/*classification ; Models, Biological ; Orthoptera/anatomy & histology/*classification ; Phylogeny ; Reproducibility of Results
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    Essay: Amersham Biosciences and Science Prize. 2002 grand prize winner (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2002 Nov 22;298(5598):1568.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12446898" target="_blank"〉PubMed〈/a〉
    Keywords: *Awards and Prizes ; *Biological Science Disciplines/history ; History, 21st Century ; United States
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    Gunter Wachtershauser profile. Between a rock and a hard place (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-03-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hagmann, Michael -- New York, N.Y. -- Science. 2002 Mar 15;295(5562):2006-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11896256" target="_blank"〉PubMed〈/a〉
    Keywords: Acetic Acid/chemistry ; Amino Acids/chemistry ; Catalysis ; Chemistry, Physical/history ; *Evolution, Chemical ; History, 20th Century ; History, 21st Century ; Iron/chemistry ; Organic Chemicals/chemistry ; *Origin of Life ; Sulfides/chemistry ; Temperature ; Thermodynamics ; United States
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    Signaling pathways for PC12 cell differentiation: making the right connections (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-01
    Description: A key issue in signal transduction is how signaling pathways common to many systems-so-called canonical signaling cassettes-integrate signals from molecules having a wide spectrum of activities, such as hormones and neurotrophins, to deliver distinct biological outcomes. The neuroendocrine cell line PC12, derived from rat pheochromocytoma, provides an example of how one canonical signaling cassette-the Raf --〉 mitogen-activated protein kinase kinase (MEK) --〉 extracellular signal-regulated kinase (ERK) pathway-can promote distinct outcomes, which in this case include neuritogenesis, gene induction, and proliferation. Two growth hormones, epidermal growth factor (EGF) and nerve growth factor (NGF), use the same pathway to cause PC12 proliferation and differentiation, respectively. In addition, pituitary adenylate cyclase-activating polypeptide (PACAP), a neurotransmitter that also causes differentiation, uses the same canonical cassette as NGF but in a different way. The Connections Map for PC12 Cell Differentiation brings into focus the complex array of specific cellular responses that rely on canonical signal transduction systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vaudry, D -- Stork, P J S -- Lazarovici, P -- Eiden, L E -- New York, N.Y. -- Science. 2002 May 31;296(5573):1648-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section on Molecular Neuroscience, Laboratory of Cellular and Molecular Regulation, National Institute of Mental Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12040181" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Differentiation ; Cell Division ; Cyclic AMP/metabolism ; Epidermal Growth Factor/metabolism/pharmacology ; *MAP Kinase Signaling System ; Mitogen-Activated Protein Kinases/metabolism ; Models, Biological ; Nerve Growth Factor/metabolism/pharmacology ; Neurites/physiology ; Neuropeptides/metabolism/pharmacology ; PC12 Cells/*physiology ; Pituitary Adenylate Cyclase-Activating Polypeptide ; Rats ; Receptor, trkA/metabolism ; Receptors, Cell Surface/metabolism ; Response Elements ; Transcription, Genetic
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    Cancer. DNA damage, deamidation, and death (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Chi -- Thompson, Craig B -- New York, N.Y. -- Science. 2002 Nov 15;298(5597):1346-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Biology, Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, PA 19104, USA. drt@mail.med.upenn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12434041" target="_blank"〉PubMed〈/a〉
    Keywords: Antineoplastic Agents/*pharmacology/therapeutic use ; *Apoptosis ; Asparagine/metabolism ; Aspartic Acid/metabolism ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclins/metabolism ; *DNA Damage ; DNA, Neoplasm/drug effects ; Genes, Retinoblastoma ; Genes, p53 ; Humans ; Models, Biological ; Mutation ; Neoplasms/*drug therapy/metabolism/*pathology ; Protein Binding ; Protein Structure, Tertiary ; Proto-Oncogene Proteins c-bcl-2/*metabolism ; Retinoblastoma Protein/metabolism ; Tumor Suppressor Protein p53/metabolism ; bcl-X Protein
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    TNF-R1 signaling: a beautiful pathway (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-01
    Description: Tumor necrosis factor (TNF) is a major mediator of apoptosis as well as inflammation and immunity, and it has been implicated in the pathogenesis of a wide spectrum of human diseases, including sepsis, diabetes, cancer, osteoporosis, multiple sclerosis, rheumatoid arthritis, and inflammatory bowel diseases. The interaction of TNF with TNF receptor-1 (TNF-R1) activates several signal transduction pathways. A common feature of each pathway is the TNF-induced formation of a multiprotein signaling complex at the cell membrane. Over the past decade, many of the components and mechanisms of these signaling pathways have been elucidated. We provide an overview of current knowledge of TNF signaling and introduce an STKE Connections Map that depicts a canonical view of this process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Guoqing -- Goeddel, David V -- New York, N.Y. -- Science. 2002 May 31;296(5573):1634-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Tularik Inc., Two Corporate Drive, South San Francisco, CA 94080, USA. goeddel@tularik.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12040173" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/*metabolism ; Apoptosis ; Cell Membrane/metabolism ; Humans ; I-kappa B Kinase ; I-kappa B Proteins/metabolism ; JNK Mitogen-Activated Protein Kinases ; MAP Kinase Signaling System ; Mitogen-Activated Protein Kinases/metabolism ; Models, Biological ; Multiprotein Complexes ; NF-kappa B/metabolism ; Protein-Serine-Threonine Kinases/metabolism ; Receptors, Tumor Necrosis Factor/*metabolism ; Receptors, Tumor Necrosis Factor, Type I ; *Signal Transduction ; Tumor Necrosis Factor-alpha/chemistry/*metabolism
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    Tweaking the human circadian clock with light (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oren, D A -- Terman, M -- MH-42931/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1998 Jan 16;279(5349):333-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉U.S. Department of Veterans Affairs, West Haven, CT 06516, USA. dan.oren@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9454328" target="_blank"〉PubMed〈/a〉
    Keywords: Bilirubin/*physiology ; Circadian Rhythm/*physiology ; Hemoglobins/*physiology ; Humans ; Knee ; *Light ; *Light Signal Transduction ; Melatonin/physiology/secretion ; Models, Biological ; Neural Pathways ; Photoreceptor Cells/physiology ; Phototherapy ; Pineal Gland/secretion ; Seasonal Affective Disorder/therapy ; Suprachiasmatic Nucleus/physiology ; Visual Pathways
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    New insights into cystic fibrosis ion channel (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hagmann, M -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):388-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577195" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Amino Acid Sequence ; Animals ; Antigens, Surface/metabolism ; Cell Membrane/metabolism ; Chlorides/metabolism ; Cystic Fibrosis Transmembrane Conductance ; Regulator/chemistry/genetics/*metabolism ; Humans ; *Ion Channel Gating ; Models, Biological ; Mutagenesis ; Nerve Tissue Proteins/metabolism ; Syntaxin 1 ; Xenopus
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    Stability and variability in competitive communities (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-16
    Description: Long-term variability in the abundance of populations depends on the sensitivity of species to environmental fluctuations and the amplification of environmental fluctuations by interactions among species. Although competitive interactions and species number may have diverse effects on variability measured at the individual species level, a combination of theoretical analyses shows that these factors have no effect on variability measured at the community level. Therefore, biodiversity may increase community stability by promoting diversity among species in their responses to environmental fluctuations, but increasing the number and strength of competitive interactions has little effect.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ives, A R -- Gross, K -- Klug, J L -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):542-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Wisconsin-Madison, Madison, WI 53706, USA. arives@facstaff.wisc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10521351" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biomass ; Competitive Behavior ; *Ecosystem ; Mathematics ; Models, Biological
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    Molecular rotary motors (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fillingame, R H -- New York, N.Y. -- Science. 1999 Nov 26;286(5445):1687-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biomolecular Chemistry, University of Wisconsin Medical School, Madison, WI 53706, USA. rhfillin@facstaff.wisc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610565" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/chemistry/metabolism ; Adenosine Triphosphate/metabolism ; Catalysis ; Catalytic Domain ; Crystallization ; Crystallography, X-Ray ; Escherichia coli/enzymology ; Helix-Loop-Helix Motifs ; Hydrolysis ; Mitochondria/enzymology ; Models, Biological ; *Molecular Motor Proteins/chemistry/metabolism ; Protein Conformation ; Protein Structure, Secondary ; Proton-Motive Force ; Proton-Translocating ATPases/*chemistry/*metabolism ; Saccharomyces cerevisiae/enzymology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Beta-arrestin-dependent formation of beta2 adrenergic receptor-Src protein kinase complexes (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-29
    Description: The Ras-dependent activation of mitogen-activated protein (MAP) kinase pathways by many receptors coupled to heterotrimeric guanine nucleotide binding proteins (G proteins) requires the activation of Src family tyrosine kinases. Stimulation of beta2 adrenergic receptors resulted in the assembly of a protein complex containing activated c-Src and the receptor. Src recruitment was mediated by beta-arrestin, which functions as an adapter protein, binding both c-Src and the agonist-occupied receptor. beta-Arrestin 1 mutants, impaired either in c-Src binding or in the ability to target receptors to clathrin-coated pits, acted as dominant negative inhibitors of beta2 adrenergic receptor-mediated activation of the MAP kinases Erk1 and Erk2. These data suggest that beta-arrestin binding, which terminates receptor-G protein coupling, also initiates a second wave of signal transduction in which the "desensitized" receptor functions as a critical structural component of a mitogenic signaling complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luttrell, L M -- Ferguson, S S -- Daaka, Y -- Miller, W E -- Maudsley, S -- Della Rocca, G J -- Lin, F -- Kawakatsu, H -- Owada, K -- Luttrell, D K -- Caron, M G -- Lefkowitz, R J -- DK02352/DK/NIDDK NIH HHS/ -- DK55524/DK/NIDDK NIH HHS/ -- HL16037/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1999 Jan 29;283(5402):655-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Medicine, 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/9924018" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic beta-Agonists/metabolism/pharmacology ; Animals ; Arrestins/genetics/*metabolism ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Cell Line ; Cell Membrane/metabolism ; Enzyme Activation ; GTP-Binding Proteins/metabolism ; Humans ; Isoproterenol/metabolism/pharmacology ; Mitogen-Activated Protein Kinase 1 ; Mitogen-Activated Protein Kinase 3 ; *Mitogen-Activated Protein Kinases ; Models, Biological ; Phosphorylation ; Point Mutation ; Precipitin Tests ; Proto-Oncogene Proteins pp60(c-src)/*metabolism ; Receptor Cross-Talk ; Receptors, Adrenergic, beta-2/*metabolism ; Receptors, Cell Surface/metabolism ; *Signal Transduction ; Transfection ; src Homology Domains
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  • 89
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    Structural assets of a tumor suppressor (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tonks, N K -- Myers, M P -- New York, N.Y. -- Science. 1999 Dec 10;286(5447):2096-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA. tonks@cshl.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10617421" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Cell Membrane/metabolism ; Crystallography, X-Ray ; *Genes, Tumor Suppressor ; Humans ; Hydrogen Bonding ; Membrane Lipids/metabolism ; Models, Biological ; Mutation ; Neoplasms/*etiology/genetics ; PTEN Phosphohydrolase ; Phosphatidylinositol 3-Kinases/chemistry/metabolism ; Phosphatidylinositol Phosphates/metabolism ; Phosphoric Monoester Hydrolases/*chemistry/genetics/*metabolism ; Phosphorylation ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Signal Transduction ; *Tumor Suppressor Proteins
    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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  • 90
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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
    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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  • 91
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    Neurobiology. The constant junction (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Salpeter, M M -- NS09315/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):424-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA. mms13@cornell.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577204" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholine/metabolism ; Animals ; Cell Membrane/metabolism ; Electric Stimulation ; Humans ; Models, Biological ; Muscle Contraction ; Muscle Denervation ; Neuromuscular Junction/*physiology ; Receptors, Cholinergic/chemistry/*metabolism ; Schwann Cells/physiology ; Synaptic Transmission
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 92
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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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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 93
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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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  • 94
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    Biophysics. For certain shrimp, life's a snap (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-10-14
    Description: On page 2114 of this issue, physicists report that a collapsing bubble outside the claw of the snapping shrimp Alpheus heterochaelis causes its characteristic clack. According to this new study, A. heterochaelis clamps its claw so rapidly that a water jet gushing from the claw first loses and then gains pressure, causing an air bubble in the jet to swell and collapse with a pronounced "snap!" The imploding bubble generates shock waves that stun nearby prey and ward off other shrimp, who have learned to keep their distance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, K -- New York, N.Y. -- Science. 2000 Sep 22;289(5487):2020-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11032548" target="_blank"〉PubMed〈/a〉
    Keywords: Air ; Animals ; Biophysical Phenomena ; Biophysics ; Decapoda (Crustacea)/*anatomy & histology/*physiology ; Models, Biological ; Pressure ; Seawater ; *Sound
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    Structural biology. Bit players in the trombone orchestra (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉von Hippel, P H -- Jing, D H -- New York, N.Y. -- Science. 2000 Mar 31;287(5462):2435-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biology Institute, University of Oregon, Eugene, OR 97403, USA. petevh@molbio.uoregon.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10766621" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; DNA/*biosynthesis ; DNA Helicases/metabolism ; DNA Primase/*chemistry/*metabolism ; *DNA Replication ; DNA, Bacterial/biosynthesis ; DNA, Single-Stranded/metabolism ; DNA-Binding Proteins/metabolism ; DNA-Directed DNA Polymerase/metabolism ; Escherichia coli/enzymology/*metabolism ; Models, Biological ; Protein Structure, Tertiary ; RNA/*biosynthesis ; RNA, Bacterial/biosynthesis ; Templates, Genetic
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  • 96
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    Climate change and malaria: temperatures without fevers? (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-09-23
    Description: As the world gets warmer, the predictions about the spread of vector-based diseases such as malaria get gloomier. However, in their timely Perspective, Dye and Reiter explain the implications of a new climate model (Randolph and Rogers), which predicts that the distribution of malaria is unlikely to change dramatically in the next 50 years even if the world does get hotter.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dye, C -- Reiter, P -- New York, N.Y. -- Science. 2000 Sep 8;289(5485):1697-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Communicable Diseases Control, Prevention and Eradication, World Health Organization (WHO), 1211 Geneva 27, Switzerland. dyec@who.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11001735" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anopheles/parasitology/physiology ; *Climate ; *Forecasting ; Greenhouse Effect ; Humans ; Humidity ; Insect Vectors/parasitology/physiology ; Malaria, Falciparum/*epidemiology/*transmission ; Models, Biological ; *Models, Statistical ; Multivariate Analysis ; Plasmodium falciparum/physiology ; Rain ; Regression Analysis ; Temperature
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  • 97
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    Society of Vertebrate Paleontology. Fossils come to life in Mexico (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-24
    Description: New insights into ancient life came by land and sea at the 60th annual meeting of the Society of Vertebrate Paleontology, held here from 25 to 28 October. Stunningly preserved fossils from Mongolia gave contrasting views of dinosaur family life, while biomechanical models clocked the swimming speed of cruising ichthyosaurs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stokstad, E -- New York, N.Y. -- Science. 2000 Dec 1;290(5497):1675.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11186387" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; *Fossils ; Maternal Behavior ; Models, Biological ; Mongolia ; *Reptiles/physiology ; Swimming
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  • 98
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    Structural biology. A chloride pump at atomic resolution (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-06-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spudich, J L -- New York, N.Y. -- Science. 2000 May 26;288(5470):1358-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Molecular Genetics, University of Texas-Houston Medical School, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10847850" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteriorhodopsins/*chemistry/metabolism ; Biological Transport, Active ; Cell Membrane/chemistry/metabolism ; Chlorides/*metabolism ; Crystallography, X-Ray ; Cytoplasm/chemistry/metabolism ; Halobacterium salinarum/chemistry ; Halorhodopsins ; Hydrogen-Ion Concentration ; Ion Pumps/*chemistry/metabolism ; Ion Transport ; Light ; Models, Biological ; Protein Conformation ; Protein Structure, Secondary ; Protons ; Schiff Bases
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  • 99
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    Signal transduction. An arresting start for MAPK (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-24
    Description: Exactly how signaling proteins know where they need to be in the cell is one of the intriguing mysteries of signal transduction biology. In a Perspective, Pouyssegur reviews new results that identify b-arrestin 2 as a scaffolding protein that holds together the different components of a MAPK signaling pathway that activates the transcription factor kinase, JNK3.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pouyssegur, J -- New York, N.Y. -- Science. 2000 Nov 24;290(5496):1515-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Signaling, Developmental Biology and Cancer Research, CNRS-UMR 6543, Nice 06189, France. pouysseg@unice.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11185509" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arrestins/*metabolism ; Cell Nucleus/metabolism ; Cells, Cultured ; Cytosol/metabolism ; Endosomes/metabolism ; Enzyme Activation ; JNK Mitogen-Activated Protein Kinases ; MAP Kinase Kinase 7 ; MAP Kinase Kinase Kinase 5 ; MAP Kinase Kinase Kinases/metabolism ; *MAP Kinase Signaling System ; Mitogen-Activated Protein Kinase 1/metabolism ; Mitogen-Activated Protein Kinase 10 ; Mitogen-Activated Protein Kinase Kinases/metabolism ; Mitogen-Activated Protein Kinases/*metabolism ; Models, Biological ; Protein-Tyrosine Kinases/*metabolism ; Proto-Oncogene Proteins c-jun/metabolism ; Receptor, Angiotensin, Type 1 ; Receptor, PAR-2 ; Receptors, Angiotensin/metabolism ; Receptors, Thrombin/metabolism
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  • 100
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    Specification of Drosophila hematopoietic lineage by conserved transcription factors (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-07
    Description: Two major classes of cells observed within the Drosophila hematopoietic repertoire are plasmatocytes/macrophages and crystal cells. The transcription factor Lz (Lozenge), which resembles human AML1 (acute myeloid leukemia- 1) protein, is necessary for the development of crystal cells during embryonic and larval hematopoiesis. Another transcription factor, Gcm (glial cells missing), has previously been shown to be required for plasmatocyte development. Misexpression of Gcm causes crystal cells to be transformed into plasmatocytes. The Drosophila GATA protein Srp (Serpent) is required for both Lz and Gcm expression and is necessary for the development of both classes of hemocytes, whereas Lz and Gcm are required in a lineage-specific manner. Given the similarities of Srp and Lz to mammalian GATA and AML1 proteins, observations in Drosophila are likely to have broad implications for understanding mammalian hematopoiesis and leukemias.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lebestky, T -- Chang, T -- Hartenstein, V -- Banerjee, U -- GM07185/GM/NIGMS NIH HHS/ -- NS29367/NS/NINDS NIH HHS/ -- R01EY08152/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 2000 Apr 7;288(5463):146-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biology Institute, Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10753120" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Lineage ; DNA-Binding Proteins/biosynthesis/genetics/*physiology ; Drosophila/*cytology/embryology/genetics/metabolism ; *Drosophila Proteins ; GATA Transcription Factors ; Gene Expression Regulation, Developmental ; Genes, Insect ; *Hematopoiesis ; Hematopoietic Stem Cells/*cytology/metabolism ; Hemocytes/*cytology/metabolism ; Larva/cytology ; Macrophages/cytology/metabolism ; Models, Biological ; Mutation ; Neuropeptides/genetics/*physiology ; Temperature ; Trans-Activators/genetics/*physiology ; Transcription Factors/biosynthesis/genetics/*physiology
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