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  • Mice  (5,420)
  • Amino Acid Sequence  (2,910)
  • Rats  (2,686)
  • Cell Line  (2,037)
  • American Association for the Advancement of Science (AAAS)  (10,724)
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  • 1
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2002-09-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, John H -- Elledge, Stephen J -- New York, N.Y. -- Science. 2002 Sep 13;297(5588):1822-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12228708" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; BRCA1 Protein/metabolism ; BRCA2 Protein/*chemistry/*metabolism ; Binding Sites ; Breast Neoplasms/genetics ; Crystallography, X-Ray ; DNA/*metabolism ; DNA Damage ; *DNA Repair ; DNA, Single-Stranded/metabolism ; DNA-Binding Proteins/metabolism ; Female ; Genes, BRCA1 ; Genes, BRCA2 ; Genetic Predisposition to Disease ; Humans ; Mice ; Ovarian Neoplasms/genetics ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Rad51 Recombinase ; Rats ; Recombination, Genetic ; Replication Protein A
    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
    Publication Date: 2002-04-16
    Description: Natural killer (NK) cells express inhibitory receptors for major histocompatibility complex (MHC) class I antigens, preventing attack against healthy cells. Mouse cytomegalovirus (MCMV) encodes an MHC-like protein (m157) that binds to an inhibitory NK cell receptor in certain MCMV-susceptible mice. In MCMV-resistant mice, this viral protein engages a related activating receptor (Ly49H) and confers host protection. These activating and inhibitory receptors are highly homologous, suggesting the possibility that one evolved from the other in response to selective pressure imposed by the pathogen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arase, Hisashi -- Mocarski, Edward S -- Campbell, Ann E -- Hill, Ann B -- Lanier, Lewis L -- AI30363/AI/NIAID NIH HHS/ -- CA89294/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2002 May 17;296(5571):1323-6. Epub 2002 Apr 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology and the Cancer Research Institute, University of California San Francisco, San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11950999" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Antigens, Ly/chemistry/genetics/*immunology/metabolism ; Cell Line ; Coculture Techniques ; Disease Susceptibility ; Evolution, Molecular ; Herpesviridae Infections/*immunology ; Histocompatibility Antigens Class I/immunology ; Hybridomas ; Immunity, Innate ; Interferon-gamma/biosynthesis ; Killer Cells, Natural/*immunology ; Lectins, C-Type ; Ligands ; Lymphocyte Activation ; Membrane Glycoproteins/chemistry/genetics/*immunology/metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Inbred Strains ; Muromegalovirus/genetics/*immunology/metabolism ; NK Cell Lectin-Like Receptor Subfamily A ; Protein Binding ; Receptors, Immunologic/chemistry/genetics/*immunology/metabolism ; Receptors, NK Cell Lectin-Like ; Recombinant Fusion Proteins/metabolism ; Transfection ; Viral Proteins/chemistry/genetics/*immunology/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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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2002-02-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogelstein, Bert -- Alberts, Bruce -- Shine, Kenneth -- New York, N.Y. -- Science. 2002 Feb 15;295(5558):1237.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Kimmel Cancer Center at Johns Hopkins University, Baltimore, MD 21231, USA. vogelbe@welch.jhu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11847324" target="_blank"〉PubMed〈/a〉
    Keywords: Bioethical Issues ; Cell Line ; *Cloning, Organism/legislation & jurisprudence ; Embryo Research ; Embryo, Mammalian/*cytology ; Humans ; *Nuclear Transfer Techniques ; *Stem Cells ; *Terminology as Topic ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2002-03-23
    Description: Activity-dependent modulation of synaptic efficacy in the brain contributes to neural circuit development and experience-dependent plasticity. Although glia are affected by activity and ensheathe synapses, their influence on synaptic strength has largely been ignored. Here, we show that a protein produced by glia, tumor necrosis factor alpha (TNFalpha), enhances synaptic efficacy by increasing surface expression of AMPA receptors. Preventing the actions of endogenous TNFalpha has the opposite effects. Thus, the continual presence of TNFalpha is required for preservation of synaptic strength at excitatory synapses. Through its effects on AMPA receptor trafficking, TNFalpha may play roles in synaptic plasticity and modulating responses to neural injury.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beattie, Eric C -- Stellwagen, David -- Morishita, Wade -- Bresnahan, Jacqueline C -- Ha, Byeong Keun -- Von Zastrow, Mark -- Beattie, Michael S -- Malenka, Robert C -- DA00439/DA/NIDA NIH HHS/ -- MH063394/MH/NIMH NIH HHS/ -- NS 31193/NS/NINDS NIH HHS/ -- NS38079/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2002 Mar 22;295(5563):2282-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nancy Pritzker Laboratory, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA 94304, USA. beattie.2@osu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11910117" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/pharmacology ; Astrocytes/*metabolism ; Cells, Cultured ; Culture Media, Conditioned/pharmacology ; Gene Expression Regulation/drug effects ; Hippocampus/cytology/metabolism ; Neuronal Plasticity/drug effects ; Neurons/drug effects/metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, AMPA/metabolism ; Receptors, Tumor Necrosis Factor ; Receptors, Tumor Necrosis Factor, Type I ; Synapses/drug effects/*metabolism ; Synaptic Transmission/drug effects ; Tumor Necrosis Factor-alpha/antagonists & inhibitors/*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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  • 5
    Publication Date: 2002-04-06
    Description: Higher order chromatin structure presents a barrier to the recognition and repair of DNA damage. Double-strand breaks (DSBs) induce histone H2AX phosphorylation, which is associated with the recruitment of repair factors to damaged DNA. To help clarify the physiological role of H2AX, we targeted H2AX in mice. Although H2AX is not essential for irradiation-induced cell-cycle checkpoints, H2AX-/- mice were radiation sensitive, growth retarded, and immune deficient, and mutant males were infertile. These pleiotropic phenotypes were associated with chromosomal instability, repair defects, and impaired recruitment of Nbs1, 53bp1, and Brca1, but not Rad51, to irradiation-induced foci. Thus, H2AX is critical for facilitating the assembly of specific DNA-repair complexes on damaged DNA.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4721576/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4721576/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Celeste, Arkady -- Petersen, Simone -- Romanienko, Peter J -- Fernandez-Capetillo, Oscar -- Chen, Hua Tang -- Sedelnikova, Olga A -- Reina-San-Martin, Bernardo -- Coppola, Vincenzo -- Meffre, Eric -- Difilippantonio, Michael J -- Redon, Christophe -- Pilch, Duane R -- Olaru, Alexandru -- Eckhaus, Michael -- Camerini-Otero, R Daniel -- Tessarollo, Lino -- Livak, Ferenc -- Manova, Katia -- Bonner, William M -- Nussenzweig, Michel C -- Nussenzweig, Andre -- Z99 CA999999/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2002 May 3;296(5569):922-7. Epub 2002 Apr 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Experimental Immunology Branch, National Cancer Institute, NIH, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11934988" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; B-Lymphocytes/immunology/physiology ; Base Sequence ; Cell Aging ; Cell Cycle ; Cells, Cultured ; *Chromosome Aberrations ; DNA Damage ; *DNA Repair ; Female ; Gene Targeting ; Histones/chemistry/*genetics/*physiology ; Immunoglobulin Class Switching ; Infertility, Male/genetics/physiopathology ; Lymphocyte Count ; Male ; Meiosis ; Mice ; Mice, Knockout ; Molecular Sequence Data ; Mutation ; Phosphorylation ; *Recombination, Genetic ; Spermatocytes/physiology ; T-Lymphocytes/immunology/physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 2002-07-13
    Description: Full-length poliovirus complementary DNA (cDNA) was synthesized by assembling oligonucleotides of plus and minus strand polarity. The synthetic poliovirus cDNA was transcribed by RNA polymerase into viral RNA, which translated and replicated in a cell-free extract, resulting in the de novo synthesis of infectious poliovirus. Experiments in tissue culture using neutralizing antibodies and CD155 receptor-specific antibodies and neurovirulence tests in CD155 transgenic mice confirmed that the synthetic virus had biochemical and pathogenic characteristics of poliovirus. Our results show that it is possible to synthesize an infectious agent by in vitro chemical-biochemical means solely by following instructions from a written sequence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cello, Jeronimo -- Paul, Aniko V -- Wimmer, Eckard -- New York, N.Y. -- Science. 2002 Aug 9;297(5583):1016-8. Epub 2002 Jul 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, School of Medicine, State University of New York at Stony Brook, Stony Brook, NY 11794-5222, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12114528" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/immunology ; Capsid/metabolism ; Cell-Free System ; DNA, Complementary/*chemical synthesis/genetics ; DNA-Directed RNA Polymerases/genetics ; Female ; *Genome, Viral ; HeLa Cells ; Humans ; Male ; *Membrane Proteins ; Mice ; Mice, Transgenic ; Neutralization Tests ; Poliomyelitis/virology ; *Poliovirus/genetics/immunology/pathogenicity/physiology ; Promoter Regions, Genetic ; Protein Biosynthesis ; RNA, Viral/*chemical synthesis/genetics/physiology ; Receptors, Virus/genetics/immunology/metabolism ; Transcription, Genetic ; Viral Plaque Assay ; Viral Proteins ; Virulence ; Virus Replication
    Print ISSN: 0036-8075
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  • 7
    Publication Date: 2002-05-04
    Description: There is a relation between stress and alcohol drinking. We show that the corticotropin-releasing hormone (CRH) system that mediates endocrine and behavioral responses to stress plays a role in the control of long-term alcohol drinking. In mice lacking a functional CRH1 receptor, stress leads to enhanced and progressively increasing alcohol intake. The effect of repeated stress on alcohol drinking behavior appeared with a delay and persisted throughout life. It was associated with an up-regulation of the N-methyl-d-aspartate receptor subunit NR2B. Alterations in the CRH1 receptor gene and adaptional changes in NR2B subunits may constitute a genetic risk factor for stress-induced alcohol drinking and alcoholism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sillaber, Inge -- Rammes, Gerhard -- Zimmermann, Stephan -- Mahal, Beatrice -- Zieglgansberger, Walter -- Wurst, Wolfgang -- Holsboer, Florian -- Spanagel, Rainer -- New York, N.Y. -- Science. 2002 May 3;296(5569):931-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany. sillaber@mpipsykl.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11988580" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; *Alcohol Drinking ; Alcoholism/*etiology/genetics ; Animals ; Brain/metabolism ; Corticotropin-Releasing Hormone/physiology ; Ethanol/blood ; Female ; Hippocampus/physiology ; In Vitro Techniques ; Male ; Mice ; Mice, Knockout ; Models, Animal ; Mutation ; Receptors, AMPA/metabolism ; Receptors, Corticotropin-Releasing Hormone/*genetics/*physiology ; Receptors, Kainic Acid/metabolism ; Receptors, N-Methyl-D-Aspartate/*metabolism ; Signal Transduction ; Stress, Physiological/physiopathology ; Stress, Psychological/*physiopathology ; Up-Regulation
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2002-12-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Funes, Soledad -- Davidson, Edgar -- Reyes-Prieto, Adrian -- Magallon, Susana -- Herion, Pascal -- King, Michael P -- Gonzalez-Halphen, Diego -- HL59646/HL/NHLBI NIH HHS/ -- TW01176/TW/FIC NIH HHS/ -- New York, N.Y. -- Science. 2002 Dec 13;298(5601):2155.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Instituto de Fisiologia Celular, Universidad Nacional Autonoma de Mexico (UNAM), 04510 D.F., Mexico.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12481129" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Apicomplexa/enzymology/*genetics/ultrastructure ; *Biological Evolution ; Cell Nucleus/genetics ; Chlamydomonas reinhardtii/enzymology/genetics ; Chlorophyta/enzymology/*genetics ; Cloning, Molecular ; DNA, Mitochondrial/genetics ; Electron Transport Complex IV/chemistry/*genetics ; *Gene Transfer, Horizontal ; Genes ; Genes, Protozoan ; Molecular Sequence Data ; Phylogeny ; Plastids/*genetics ; Symbiosis ; Toxoplasma/enzymology/genetics
    Print ISSN: 0036-8075
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  • 9
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2003-02-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gura, Trisha -- New York, N.Y. -- Science. 2003 Feb 7;299(5608):849-52.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12574616" target="_blank"〉PubMed〈/a〉
    Keywords: Agouti-Related Protein ; Animals ; Anti-Obesity Agents/adverse effects/pharmacology/*therapeutic use ; Appetite/drug effects ; Arcuate Nucleus of Hypothalamus/metabolism ; Ciliary Neurotrophic Factor/therapeutic use ; Clinical Trials as Topic ; Cyclobutanes/adverse effects/therapeutic use ; Energy Intake ; Ghrelin ; Humans ; Hunger/drug effects ; Intercellular Signaling Peptides and Proteins ; Lactones/adverse effects/therapeutic use ; Leptin/metabolism/therapeutic use ; Mice ; Nerve Tissue Proteins/adverse effects/therapeutic use ; Neurons/metabolism ; Neuropeptide Y/metabolism/pharmacology ; Obesity/*drug therapy/metabolism ; Peptide Fragments ; Peptide Hormones/metabolism/pharmacology ; Peptide YY/metabolism/pharmacology ; Phentermine/adverse effects/therapeutic use ; Proteins/metabolism ; Receptors, Corticotropin/metabolism ; Receptors, Melanocortin ; Weight Loss ; alpha-MSH/metabolism
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2002-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, Eliot -- New York, N.Y. -- Science. 2002 May 17;296(5571):1212.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12016275" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Disease Models, Animal ; Drug Industry/legislation & jurisprudence ; Drug Screening Assays, Antitumor ; Mice ; *Mice, Transgenic ; National Institutes of Health (U.S.)/legislation & jurisprudence ; *Neoplasms, Experimental ; *Patents as Topic ; United States ; Universities/legislation & jurisprudence
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  • 11
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2002-02-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beckman, Mary -- New York, N.Y. -- Science. 2002 Feb 1;295(5556):782.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11823614" target="_blank"〉PubMed〈/a〉
    Keywords: Aggression ; Animals ; *Behavior, Animal ; Cues ; Female ; Male ; Membrane Proteins/*genetics/*physiology ; Mice ; Mice, Knockout ; Neurons/physiology ; Pheromones/*physiology ; Sex Characteristics ; *Sexual Behavior, Animal ; TRPC Cation Channels ; Vomeronasal Organ/*innervation/physiology
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  • 12
    Publication Date: 2002-02-09
    Description: Double-stranded RNA-mediated gene interference (RNAi) in Caenorhabditis elegans systemically inhibits gene expression throughout the organism. To investigate how gene-specific silencing information is transmitted between cells, we constructed a strain that permits visualization of systemic RNAi. We used this strain to identify systemic RNA interference-deficient (sid) loci required to spread gene-silencing information between tissues but not to initiate or maintain an RNAi response. One of these loci, sid-1, encodes a conserved protein with predicted transmembrane domains. SID-1 is expressed in cells sensitive to RNAi, is localized to the cell periphery, and is required cell-autonomously for systemic RNAi.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Winston, William M -- Molodowitch, Christina -- Hunter, Craig P -- New York, N.Y. -- Science. 2002 Mar 29;295(5564):2456-9. Epub 2002 Feb 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Harvard University, 16 Divinity Avenue, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11834782" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Animals, Genetically Modified ; Caenorhabditis elegans/embryology/*genetics/metabolism ; Caenorhabditis elegans Proteins/chemistry/*genetics/*physiology ; Calmodulin-Binding Proteins/genetics ; Cytoplasm/metabolism ; Embryo, Nonmammalian/physiology ; *Gene Silencing ; Genes, Helminth ; Germ Cells/metabolism ; Green Fluorescent Proteins ; Intestines/metabolism ; Luminescent Proteins/genetics ; Membrane Proteins/chemistry/*genetics/*physiology ; Molecular Sequence Data ; Mosaicism ; Muscle Proteins/genetics ; Muscles/metabolism ; Mutation ; Protein Structure, Tertiary ; RNA, Double-Stranded/*genetics/metabolism ; RNA, Helminth/*genetics/metabolism ; Recombinant Fusion Proteins/metabolism ; Transgenes
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  • 13
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2002-09-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beckman, Mary -- New York, N.Y. -- Science. 2002 Sep 6;297(5587):1626-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12215618" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arthritis/*immunology ; Arthritis, Rheumatoid/immunology ; Autoantibodies/immunology ; Humans ; Joints/*immunology ; Mast Cells/immunology ; Mice
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  • 14
    Publication Date: 2003-04-26
    Description: Tubular nanostructures are suggested to have a wide range of applications in nanotechnology. We report our observation of the self-assembly of a very short peptide, the Alzheimer's beta-amyloid diphenylalanine structural motif, into discrete and stiff nanotubes. Reduction of ionic silver within the nanotubes, followed by enzymatic degradation of the peptide backbone, resulted in the production of discrete nanowires with a long persistence length. The same dipeptide building block, made of D-phenylalanine, resulted in the production of enzymatically stable nanotubes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reches, Meital -- Gazit, Ehud -- New York, N.Y. -- Science. 2003 Apr 25;300(5619):625-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12714741" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Amyloid beta-Peptides/chemistry ; Biosensing Techniques ; Birefringence ; Dipeptides/*chemistry ; Microscopy, Electron ; Microscopy, Electron, Scanning ; Molecular Sequence Data ; *Nanotechnology ; Oxidation-Reduction ; Protein Conformation ; Silver ; Solubility ; Spectroscopy, Fourier Transform Infrared
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  • 15
    Publication Date: 2003-08-09
    Description: Amyotrophic lateral sclerosis (ALS) is a progressive, lethal neuromuscular disease that is associated with the degeneration of spinal and brainstem motor neurons, leading to atrophy of limb, axial, and respiratory muscles. The cause of ALS is unknown, and there is no effective therapy. Neurotrophic factors are candidates for therapeutic evaluation in ALS. Although chronic delivery of molecules to the central nervous system has proven difficult, we recently discovered that adeno-associated virus can be retrogradely transported efficiently from muscle to motor neurons of the spinal cord. We report that insulin-like growth factor 1 prolongs life and delays disease progression, even when delivered at the time of overt disease symptoms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaspar, Brian K -- Llado, Jeronia -- Sherkat, Nushin -- Rothstein, Jeffrey D -- Gage, Fred H -- AG12992/AG/NIA NIH HHS/ -- AG21876/AG/NIA NIH HHS/ -- NS33958/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Aug 8;301(5634):839-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12907804" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/pathology/physiopathology/*therapy ; Animals ; Apoptosis ; Base Sequence ; Caspase 9 ; Caspases/metabolism ; Cell Count ; Dependovirus/*genetics ; Disease Models, Animal ; Disease Progression ; Gene Transfer Techniques ; *Genetic Therapy ; *Genetic Vectors/administration & dosage ; Glial Cell Line-Derived Neurotrophic Factor ; Green Fluorescent Proteins ; Insulin-Like Growth Factor I/*genetics ; Luminescent Proteins/genetics ; Male ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Motor Neurons/pathology/virology ; Muscle, Skeletal/virology ; Nerve Growth Factors/genetics ; *Protein-Serine-Threonine Kinases ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-akt ; Random Allocation ; Spinal Cord/chemistry/pathology/virology ; Superoxide Dismutase/genetics/metabolism ; Ubiquitin/analysis
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  • 16
    Publication Date: 2003-05-06
    Description: Degenerative disorders of motor neurons include a range of progressive fatal diseases such as amyotrophic lateral sclerosis (ALS), spinal-bulbar muscular atrophy (SBMA), and spinal muscular atrophy (SMA). Although the causative genetic alterations are known for some cases, the molecular basis of many SMA and SBMA-like syndromes and most ALS cases is unknown. Here we show that missense point mutations in the cytoplasmic dynein heavy chain result in progressive motor neuron degeneration in heterozygous mice, and in homozygotes this is accompanied by the formation of Lewy-like inclusion bodies, thus resembling key features of human pathology. These mutations exclusively perturb neuron-specific functions of dynein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hafezparast, Majid -- Klocke, Rainer -- Ruhrberg, Christiana -- Marquardt, Andreas -- Ahmad-Annuar, Azlina -- Bowen, Samantha -- Lalli, Giovanna -- Witherden, Abi S -- Hummerich, Holger -- Nicholson, Sharon -- Morgan, P Jeffrey -- Oozageer, Ravi -- Priestley, John V -- Averill, Sharon -- King, Von R -- Ball, Simon -- Peters, Jo -- Toda, Takashi -- Yamamoto, Ayumu -- Hiraoka, Yasushi -- Augustin, Martin -- Korthaus, Dirk -- Wattler, Sigrid -- Wabnitz, Philipp -- Dickneite, Carmen -- Lampel, Stefan -- Boehme, Florian -- Peraus, Gisela -- Popp, Andreas -- Rudelius, Martina -- Schlegel, Juergen -- Fuchs, Helmut -- Hrabe de Angelis, Martin -- Schiavo, Giampietro -- Shima, David T -- Russ, Andreas P -- Stumm, Gabriele -- Martin, Joanne E -- Fisher, Elizabeth M C -- New York, N.Y. -- Science. 2003 May 2;300(5620):808-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurodegenerative Disease, Institute of Neurology, National Hospital for Neurology and Neurosurgery, Queen Square, London WC1N 3BG, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12730604" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anterior Horn Cells/pathology ; Apoptosis ; *Axonal Transport ; Cell Differentiation ; Cell Movement ; Central Nervous System/embryology ; Chromosome Mapping ; Dimerization ; Dyneins/chemistry/*genetics/*physiology ; Female ; Ganglia, Spinal/pathology ; Golgi Apparatus/metabolism/ultrastructure ; Heterozygote ; Homozygote ; Lewy Bodies/pathology ; Male ; Mice ; Mice, Inbred C3H ; Mice, Inbred C57BL ; Motor Neuron Disease/*genetics/pathology/physiopathology ; Motor Neurons/*physiology/ultrastructure ; Mutation ; Mutation, Missense ; *Nerve Degeneration ; Peptide Fragments/metabolism ; Phenotype ; Point Mutation ; Spinal Nerves/growth & development ; Tetanus Toxin/metabolism
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  • 17
    Publication Date: 2002-02-09
    Description: The protein-protein interaction between leukocyte functional antigen-1 (LFA-1) and intercellular adhesion molecule-1 (ICAM-1) is critical to lymphocyte and immune system function. Here, we report on the transfer of the contiguous, nonlinear epitope of ICAM-1, responsible for its association with LFA-1, to a small-molecule framework. These LFA-1 antagonists bound LFA-1, blocked binding of ICAM-1, and inhibited a mixed lymphocyte reaction (MLR) with potency significantly greater than that of cyclosporine A. Furthermore, in comparison to an antibody to LFA-1, they exhibited significant anti-inflammatory effects in vivo. These results demonstrate the utility of small-molecule mimics of nonlinear protein epitopes and the protein epitopes themselves as leads in the identification of novel pharmaceutical agents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gadek, T R -- Burdick, D J -- McDowell, R S -- Stanley, M S -- Marsters, J C Jr -- Paris, K J -- Oare, D A -- Reynolds, M E -- Ladner, C -- Zioncheck, K A -- Lee, W P -- Gribling, P -- Dennis, M S -- Skelton, N J -- Tumas, D B -- Clark, K R -- Keating, S M -- Beresini, M H -- Tilley, J W -- Presta, L G -- Bodary, S C -- New York, N.Y. -- Science. 2002 Feb 8;295(5557):1086-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioorganic Chemistry, Genentech, One DNA Way, South San Francisco, CA 94080, USA. trg@gene.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11834839" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Anti-Inflammatory Agents, Non-Steroidal/chemical ; synthesis/chemistry/metabolism/pharmacology ; Cyclosporine/pharmacology ; Dermatitis, Irritant/drug therapy ; Dinitrofluorobenzene ; Drug Design ; Enzyme-Linked Immunosorbent Assay ; Epitopes ; Female ; Humans ; Immunoglobulin Fab Fragments/immunology/pharmacology ; Immunosuppressive Agents/chemical synthesis/chemistry/metabolism/*pharmacology ; Intercellular Adhesion Molecule-1/chemistry/*immunology/*metabolism ; Lymphocyte Culture Test, Mixed ; Lymphocyte Function-Associated Antigen-1/immunology/*metabolism ; Mice ; Mice, Inbred BALB C ; Molecular Mimicry ; Mutagenesis ; Protein Structure, Secondary ; Structure-Activity Relationship ; Thiophenes/*chemical synthesis/chemistry/metabolism/*pharmacology ; beta-Alanine/analogs & derivatives/*chemical ; synthesis/chemistry/metabolism/*pharmacology
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  • 18
    Publication Date: 2002-11-16
    Description: Activation-induced cytidine deaminase (AID) plays an essential role in class switch recombination (CSR) and somatic hypermutation (SHM) of immunoglobulin genes. We report here that deficiency in AID results in the development of hyperplasia of isolated lymphoid follicles (ILFs) associated with a 100-fold expansion of anaerobic flora in the small intestine. Reduction of bacterial flora by antibiotic treatment of AID-/- mice abolished ILF hyperplasia as well as the germinal center enlargement seen in secondary lymphoid tissues. Because an inability to switch to immunoglobulin A on its own does not lead to a similar phenotype, these results suggest that SHM of ILF B cells plays a critical role in regulating intestinal microflora.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fagarasan, Sidonia -- Muramatsu, Masamichi -- Suzuki, Keiichiro -- Nagaoka, Hitoshi -- Hiai, Hiroshi -- Honjo, Tasuku -- New York, N.Y. -- Science. 2002 Nov 15;298(5597):1424-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12434060" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Bacterial Agents ; B-Lymphocytes/immunology ; Bacteria, Aerobic/*growth & development ; Bacteria, Anaerobic/*growth & development ; Cell Division ; Colony Count, Microbial ; Cytidine Deaminase/genetics/*metabolism ; Dendritic Cells, Follicular/immunology ; Drug Therapy, Combination/pharmacology ; Genes, Immunoglobulin ; Germinal Center/immunology ; Homeostasis ; Hyperplasia ; Immunization ; Immunoglobulin Class Switching ; Immunoglobulin Variable Region/genetics ; Intestine, Small/immunology/*microbiology ; Lymphocyte Activation ; Lymphoid Tissue/immunology/*pathology ; Metronidazole/pharmacology ; Mice ; Mice, Inbred C57BL ; Mice, Inbred CBA ; Peyer's Patches/pathology ; Somatic Hypermutation, Immunoglobulin ; T-Lymphocytes/immunology
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  • 19
    Publication Date: 2002-02-09
    Description: Primary open-angle glaucoma (POAG) affects 33 million individuals worldwide and is a leading cause of blindness. In a study of 54 families with autosomal dominantly inherited adult-onset POAG, we identified the causative gene on chromosome 10p14 and designated it OPTN (for "optineurin"). Sequence alterations in OPTN were found in 16.7% of families with hereditary POAG, including individuals with normal intraocular pressure. The OPTN gene codes for a conserved 66-kilodalton protein of unknown function that has been implicated in the tumor necrosis factor-alpha signaling pathway and that interacts with diverse proteins including Huntingtin, Ras-associated protein RAB8, and transcription factor IIIA. Optineurin is expressed in trabecular meshwork, nonpigmented ciliary epithelium, retina, and brain, and we speculate that it plays a neuroprotective role.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rezaie, Tayebeh -- Child, Anne -- Hitchings, Roger -- Brice, Glen -- Miller, Lauri -- Coca-Prados, Miguel -- Heon, Elise -- Krupin, Theodore -- Ritch, Robert -- Kreutzer, Donald -- Crick, R Pitts -- Sarfarazi, Mansoor -- EY-09947/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 2002 Feb 8;295(5557):1077-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Ophthalmic Genetics Laboratory, Surgical Research Center, Department of Surgery, University of Connecticut Health Center, Farmington, CT 06030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11834836" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Alternative Splicing ; Amino Acid Sequence ; Brain/metabolism ; Chromosome Mapping ; Chromosomes, Human, Pair 10/genetics ; Ciliary Body/metabolism ; Exons ; Eye Proteins/analysis/chemistry/*genetics/physiology ; Female ; Glaucoma, Open-Angle/*genetics ; Golgi Apparatus/chemistry ; Heterozygote ; Humans ; Intraocular Pressure ; Male ; Middle Aged ; *Mutation ; *Mutation, Missense ; Nerve Tissue Proteins/analysis/chemistry/*genetics/physiology ; Ocular Hypertension/genetics ; Pedigree ; Polymorphism, Single-Stranded Conformational ; Retina/metabolism ; Trabecular Meshwork/metabolism ; *Transcription Factor TFIIIA ; Zinc Fingers
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  • 20
    Publication Date: 2002-12-10
    Description: The formation and patterning of mesoderm during mammalian gastrulation require the activity of Nodal, a secreted mesoderm-inducing factor of the transforming growth factor-beta (TGF-beta) family. Here we show that the transcriptional corepressor DRAP1 has a very specific role in regulation of Nodal activity during mouse embryogenesis. We find that loss of Drap1 leads to severe gastrulation defects that are consistent with increased expression of Nodal and can be partially suppressed by Nodal heterozygosity. Biochemical studies indicate that DRAP1 interacts with and inhibits DNA binding by the winged-helix transcription factor FoxH1 (FAST), a critical component of a positive feedback loop for Nodal activity. We propose that DRAP1 limits the spread of a morphogenetic signal by down-modulating the response to the Nodal autoregulatory loop.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Iratni, Rabah -- Yan, Yu-Ting -- Chen, Canhe -- Ding, Jixiang -- Zhang, Yi -- Price, Sandy M -- Reinberg, Danny -- Shen, Michael M -- New York, N.Y. -- Science. 2002 Dec 6;298(5600):1996-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Biochemistry, Division of Nucleic Acids Enzymology, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12471260" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Cell Line ; Crosses, Genetic ; DNA/metabolism ; DNA-Binding Proteins/metabolism ; *Embryonic and Fetal Development ; Female ; Forkhead Transcription Factors ; Gastrula/*physiology ; Gene Expression Regulation, Developmental ; Gene Targeting ; Heterozygote ; In Situ Hybridization ; Left-Right Determination Factors ; Male ; Mesoderm/cytology/physiology ; Mice ; Morphogenesis ; Mutation ; Nodal Protein ; Phenotype ; Protein Binding ; RNA Interference ; Recombinant Fusion Proteins/metabolism ; Repressor Proteins/genetics/*metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; *Signal Transduction ; Transcription Factors/metabolism ; Transforming Growth Factor beta/genetics/*metabolism
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  • 21
    Publication Date: 2002-04-27
    Description: Little is known of how plant disease resistance (R) proteins recognize pathogens and activate plant defenses. Rcr3 is specifically required for the function of Cf-2, a Lycopersicon pimpinellifolium gene bred into cultivated tomato (Lycopersicon esculentum) for resistance to Cladosporium fulvum. Rcr3 encodes a secreted papain-like cysteine endoprotease. Genetic analysis shows Rcr3 is allelic to the L. pimpinellifolium Ne gene, which suppresses the Cf-2-dependent autonecrosis conditioned by its L. esculentum allele, ne (necrosis). Rcr3 alleles from these two species encode proteins that differ by only seven amino acids. Possible roles of Rcr3 in Cf-2-dependent defense and autonecrosis are discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kruger, Julia -- Thomas, Colwyn M -- Golstein, Catherine -- Dixon, Mark S -- Smoker, Matthew -- Tang, Saijun -- Mulder, Lonneke -- Jones, Jonathan D G -- New York, N.Y. -- Science. 2002 Apr 26;296(5568):744-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Sainsbury Laboratory, John Innes Centre, Norwich NR4 7UH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11976458" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Base Sequence ; Cladosporium/*physiology ; Cloning, Molecular ; Cysteine Endopeptidases/chemistry/*genetics/*metabolism ; Cysteine Proteinase Inhibitors/pharmacology ; Gene Expression Regulation, Plant ; *Genes, Plant ; Immunity, Innate ; Leucine/analogs & derivatives/pharmacology ; Lycopersicon esculentum/*enzymology/genetics/*microbiology/physiology ; Molecular Sequence Data ; Mutation ; Phenotype ; *Plant Diseases ; Plant Leaves/enzymology ; Plant Proteins/*metabolism ; Plants, Genetically Modified ; Promoter Regions, Genetic ; Recombinant Fusion Proteins/chemistry/metabolism ; Tobacco/genetics ; Transgenes
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  • 22
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2002-12-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallo, Robert C -- New York, N.Y. -- Science. 2002 Nov 29;298(5599):1728-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Human Virology and Department of Microbiology and Immunology, University of Maryland, Baltimore, MD 21201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12459576" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Serodiagnosis/history ; Acquired Immunodeficiency Syndrome/diagnosis/*history/immunology/virology ; CD4-Positive T-Lymphocytes/virology ; Cell Line ; Cells, Cultured ; France ; *HIV/classification/isolation & purification/physiology ; History, 20th Century ; Human T-lymphotropic virus 1/isolation & purification/physiology ; Human T-lymphotropic virus 2/isolation & purification/physiology ; Humans ; Interleukin-2/history/isolation & purification/physiology ; Patents as Topic/history ; RNA-Directed DNA Polymerase/history/isolation & purification/metabolism ; United States ; Virus Cultivation
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  • 23
    Publication Date: 2003-12-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, Martin -- Bristow, Robert -- Glazer, Peter -- Hill, Richard -- McBride, William -- McKenna, Gillies -- Muschel, Ruth -- New York, N.Y. -- Science. 2003 Dec 12;302(5652):1894; author reply 1894.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Radiation Oncology, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14671275" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Disease Models, Animal ; Endothelium, Vascular/*pathology/radiation effects ; Melanoma, Experimental/blood supply/immunology/pathology/*radiotherapy ; Mice ; Radiation Tolerance ; Sphingomyelin Phosphodiesterase/genetics/metabolism
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  • 24
    Publication Date: 2002-04-06
    Description: The conserved Sir2 family of proteins has protein deacetylase activity that is dependent on NAD (the oxidized form of nicotinamide adenine dinucleotide). Although histones are one likely target for the enzymatic activity of eukaryotic Sir2 proteins, little is known about the substrates and roles of prokaryotic Sir2 homologs. We reveal that an archaeal Sir2 homolog interacts specifically with the major archaeal chromatin protein, Alba, and that Alba exists in acetylated and nonacetylated forms. Furthermore, we show that Sir2 can deacetylate Alba and mediate transcriptional repression in a reconstituted in vitro transcription system. These data provide a paradigm for how Sir2 family proteins influence transcription and suggest that modulation of chromatin structure by acetylation arose before the divergence of the archaeal and eukaryotic lineages.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bell, Stephen D -- Botting, Catherine H -- Wardleworth, Benjamin N -- Jackson, Stephen P -- White, Malcolm F -- New York, N.Y. -- Science. 2002 Apr 5;296(5565):148-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council (MRC) Cancer Cell Unit, The Hutchison/MRC Research Centre, Hills Road, Cambridge, CB2 2QH, UK. sdb@mole.bio.cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11935028" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Amino Acid Sequence ; Archaeal Proteins/*chemistry/*metabolism ; Chromatin/*metabolism ; DNA/metabolism ; Gene Expression Regulation, Archaeal ; Histone Deacetylases/chemistry/*metabolism ; Molecular Sequence Data ; Molecular Weight ; Protein Binding ; Recombinant Fusion Proteins/chemistry/metabolism ; *Silent Information Regulator Proteins, Saccharomyces cerevisiae ; Sirtuin 2 ; Sirtuins ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ; Sulfolobus/*chemistry/genetics/metabolism ; Templates, Genetic ; Trans-Activators/chemistry/*metabolism ; Transcription, Genetic
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  • 25
    Publication Date: 2002-06-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Copeland, Neal G -- Jenkins, Nancy A -- O'Brien, Stephen J -- New York, N.Y. -- Science. 2002 May 31;296(5573):1617-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mouse Cancer Genetics Program, National Cancer Institute, Frederick, MD, 21702, USA. copeland@ncifcrf.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12040165" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Composition ; Biological Evolution ; Chromosome Aberrations ; Chromosomes/*genetics ; Chromosomes, Human/genetics ; Computational Biology ; Conserved Sequence ; Evolution, Molecular ; Gene Duplication ; Gene Rearrangement ; Genes ; Genome ; *Genome, Human ; Genomics ; Humans ; Mice ; Mice, Inbred Strains/*genetics ; Multigene Family ; *Sequence Analysis, DNA ; Species Specificity ; Synteny
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  • 26
    Publication Date: 2003-07-05
    Description: Animal behavior is synchronized to the 24-hour light:dark (LD) cycle by regulatory programs that produce circadian fluctuations in gene expression throughout the body. In mammals, the transcription factor CLOCK controls circadian oscillation in the suprachiasmatic nucleus of the brain; its paralog, neuronal PAS domain protein 2 (NPAS2), performs a similar function in other forebrain sites. To investigate the role of NPAS2 in behavioral manifestations of circadian rhythm, we studied locomotor activity, sleep patterns, and adaptability to both light- and restricted food-driven entrainment in NPAS2-deficient mice. Our results indicate that NPAS2 plays a substantive role in maintaining circadian behaviors in normal LD and feeding conditions and that NPAS2 is critical for adaptability to food restriction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dudley, Carol A -- Erbel-Sieler, Claudia -- Estill, Sandi Jo -- Reick, Martin -- Franken, Paul -- Pitts, SiNae -- McKnight, Steven L -- 37919/PHS HHS/ -- 4R37 MH59388/MH/NIMH NIH HHS/ -- 5T3DK07328/DK/NIDDK NIH HHS/ -- HL 64148/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2003 Jul 18;301(5631):379-83. Epub 2003 Jul 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-9152, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12843397" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; Animals ; Basic Helix-Loop-Helix Transcription Factors ; Behavior, Animal ; Biological Clocks/*physiology ; Body Weight ; CLOCK Proteins ; Circadian Rhythm/*physiology ; Crosses, Genetic ; Darkness ; Eating ; Electroencephalography ; Electromyography ; Female ; Food ; Gene Targeting ; Light ; Male ; Mice ; Mice, Inbred C57BL ; *Motor Activity ; Nerve Tissue Proteins/genetics/*physiology ; Prosencephalon/physiology ; *Sleep ; Suprachiasmatic Nucleus/physiology ; Trans-Activators/genetics/physiology ; Transcription Factors/genetics/*physiology
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  • 27
    Publication Date: 2003-03-01
    Description: Recent progress in the science of aging is driven largely by the use of model systems, ranging from yeast and nematodes to mice. These models have revealed conservation in genetic pathways that balance energy production and its damaging by-products with pathways that preserve somatic maintenance. Maintaining genome integrity has emerged as a major factor in longevity and cell viability. Here we discuss the use of mouse models with defects in genome maintenance for understanding the molecular basis of aging in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hasty, Paul -- Campisi, Judith -- Hoeijmakers, Jan -- van Steeg, Harry -- Vijg, Jan -- AG17242/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2003 Feb 28;299(5611):1355-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Medicine, University of Texas Health Science Center, San Antonio, TX 78245, USA. hastye@uthscsa.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12610296" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging/genetics ; Aging, Premature/*genetics ; Animals ; Apoptosis ; Cell Aging ; *DNA Damage ; DNA Helicases/genetics/metabolism ; *DNA Repair/genetics ; Exodeoxyribonucleases ; *Genome ; Genome, Human ; Humans ; Longevity/genetics ; Mice ; Mutation ; Reactive Oxygen Species/metabolism ; RecQ Helicases ; Syndrome ; Telomere/physiology ; Transcription, Genetic
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  • 28
    Publication Date: 2003-04-12
    Description: Rapid turnover of the tumor suppressor protein p53 requires the MDM2 ubiquitin ligase, and both interact with p300-CREB-binding protein transcriptional coactivator proteins. p53 is stabilized by the binding of p300 to the oncoprotein E1A, suggesting that p300 regulates p53 degradation. Purified p300 exhibited intrinsic ubiquitin ligase activity that was inhibited by E1A. In vitro, p300 with MDM2 catalyzed p53 polyubiquitination, whereas MDM2 catalyzed p53 monoubiquitination. E1A expression caused a decrease in polyubiquitinated but not monoubiquitinated p53 in cells. Thus, generation of the polyubiquitinated forms of p53 that are targeted for proteasome degradation requires the intrinsic ubiquitin ligase activities of MDM2 and p300.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grossman, Steven R -- Deato, Maria E -- Brignone, Chrystelle -- Chan, Ho Man -- Kung, Andrew L -- Tagami, Hideaki -- Nakatani, Yoshihiro -- Livingston, David M -- CA15751/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2003 Apr 11;300(5617):342-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12690203" target="_blank"〉PubMed〈/a〉
    Keywords: Adenovirus E1A Proteins/metabolism ; Animals ; Catalysis ; Cells, Cultured ; E1A-Associated p300 Protein ; Embryo, Mammalian ; Fibroblasts/metabolism ; Humans ; Ligases/antagonists & inhibitors/metabolism ; Mice ; Nuclear Proteins/antagonists & inhibitors/*metabolism ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-mdm2 ; Recombinant Fusion Proteins/metabolism ; Recombinant Proteins/metabolism ; Trans-Activators/antagonists & inhibitors/*metabolism ; Transfection ; Tumor Cells, Cultured ; Tumor Suppressor Protein p53/*metabolism ; Ubiquitin-Protein Ligases ; Ubiquitins/*metabolism
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  • 29
    Publication Date: 2003-04-26
    Description: The active-site cysteine of peroxiredoxins is selectively oxidized to cysteine sulfinic acid during catalysis, which leads to inactivation of peroxidase activity. This oxidation was thought to be irreversible. However, by metabolic labeling of mammalian cells with 35S, we show that the sulfinic form of peroxiredoxin I, produced during the exposure of cells to H2O2, is rapidly reduced to the catalytically active thiol form. The mammalian cells' ability to reduce protein sulfinic acid might serve as a mechanism to repair oxidatively damaged proteins or represent a new type of cyclic modification by which the function of various proteins is regulated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Woo, Hyun Ae -- Chae, Ho Zoon -- Hwang, Sung Chul -- Yang, Kap-Seok -- Kang, Sang Won -- Kim, Kanghwa -- Rhee, Sue Goo -- New York, N.Y. -- Science. 2003 Apr 25;300(5619):653-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Cell Signaling Research and Division of Molecular Life Sciences, Ewha Womans University, Seoul 120-750, Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12714748" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Catalysis ; Cell Line ; Cycloheximide/pharmacology ; Cysteine/*analogs & derivatives/*metabolism ; Dimerization ; HeLa Cells ; Humans ; Hydrogen Peroxide/*metabolism ; Methionine/metabolism ; Mice ; Neurotransmitter Agents ; Oxidation-Reduction ; Peroxidases/chemistry/*metabolism ; Peroxiredoxins ; Protein Synthesis Inhibitors/pharmacology ; Spectrometry, Mass, Electrospray Ionization ; Sulfhydryl Compounds/metabolism ; Sulfinic Acids/metabolism ; Tumor Cells, Cultured
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  • 30
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2003-02-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Calladine, C R -- Pratap, V -- Chandran, V -- Mizuguchi, K -- Luisi, B F -- New York, N.Y. -- Science. 2003 Jan 31;299(5607):661-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12561825" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Crystallography, X-Ray ; Escherichia coli Proteins/*chemistry ; Glycine/chemistry ; Ion Channels/*chemistry ; *Models, Molecular ; Protein Conformation ; Protein Structure, Secondary
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  • 31
    Publication Date: 2003-04-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eden, Amir -- Gaudet, Francois -- Waghmare, Alpana -- Jaenisch, Rudolf -- CA87869/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2003 Apr 18;300(5618):455.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology, Nine Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12702868" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosomes, Mammalian/*genetics/physiology ; DNA (Cytosine-5-)-Methyltransferase/genetics/metabolism ; *DNA Methylation ; Fibroblasts/metabolism ; Genes, Neurofibromatosis 1 ; Genes, p53 ; Humans ; *Loss of Heterozygosity ; Mice ; Mutation ; Neoplasms/genetics ; Recombination, Genetic ; Sarcoma/*genetics ; Soft Tissue Neoplasms/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 32
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2003-07-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heintz, Nathaniel -- New York, N.Y. -- Science. 2003 Jul 4;301(5629):59-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Rockefeller University, New York, NY 10021, USA. heintz@rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12843383" target="_blank"〉PubMed〈/a〉
    Keywords: 14-3-3 Proteins ; Amino Acid Substitution ; Animals ; Ataxin-1 ; Ataxins ; Cell Nucleus/metabolism ; Disease Progression ; Mice ; Mice, Transgenic ; Mutation ; Nerve Tissue Proteins/*chemistry/genetics/*metabolism ; Nuclear Proteins/*chemistry/genetics/*metabolism ; Peptides ; Phosphorylation ; *Protein-Serine-Threonine Kinases ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-akt ; Purkinje Cells/metabolism/ultrastructure ; Signal Transduction ; Spinocerebellar Ataxias/etiology/genetics/pathology/*physiopathology ; *Trinucleotide Repeat Expansion ; Tyrosine 3-Monooxygenase/*metabolism
    Print ISSN: 0036-8075
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  • 33
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2003-03-01
    Description: Although curvature of biological surfaces has been considered from mathematical and biophysical perspectives, its molecular and developmental basis is unclear. We have studied the cin mutant of Antirrhinum, which has crinkly rather than flat leaves. Leaves of cin display excess growth in marginal regions, resulting in a gradual introduction of negative curvature during development. This reflects a change in the shape and the progression of a cell-cycle arrest front moving from the leaf tip toward the base. CIN encodes a TCP protein and is expressed downstream of the arrest front. We propose that CIN promotes zero curvature (flatness) by making cells more sensitive to an arrest signal, particularly in marginal regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nath, Utpal -- Crawford, Brian C W -- Carpenter, Rosemary -- Coen, Enrico -- New York, N.Y. -- Science. 2003 Feb 28;299(5611):1404-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12610308" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antirrhinum/cytology/*genetics/*growth & development/metabolism ; Base Sequence ; Cell Cycle ; Cell Differentiation ; Cell Division ; Cell Size ; Cyclin D3 ; Cyclins/genetics/metabolism ; Gene Deletion ; *Gene Expression Regulation, Plant ; *Genes, Plant ; Histones/genetics/metabolism ; Molecular Sequence Data ; Mutagenesis, Insertional ; Mutation ; Plant Leaves/anatomy & histology/cytology/*growth & development/metabolism ; Plant Proteins/chemistry/genetics/metabolism ; Surface Properties ; Transcription Factors/chemistry/genetics/*metabolism
    Print ISSN: 0036-8075
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  • 34
    Publication Date: 2003-01-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rajagopal, Jayaraj -- Anderson, William J -- Kume, Shoen -- Martinez, Olga I -- Melton, Douglas A -- New York, N.Y. -- Science. 2003 Jan 17;299(5605):363.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, Harvard University, 7 Divinity Avenue, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12532008" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/immunology ; Apoptosis ; Cell Differentiation ; Cell Line ; Embryo, Mammalian/*cytology ; Humans ; Insulin/*analysis/genetics/immunology/*metabolism ; Islets of Langerhans/*cytology/metabolism ; Mice ; Microscopy, Confocal ; RNA, Messenger/genetics/metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Stem Cells/*cytology/metabolism
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  • 35
    Publication Date: 2003-06-14
    Description: In eukaryotes, the combinatorial association of sequence-specific DNA binding proteins is essential for transcription. We have used protein arrays to test 492 pairings of a nearly complete set of coiled-coil strands from human basic-region leucine zipper (bZIP) transcription factors. We find considerable partnering selectivity despite the bZIPs' homologous sequences. The interaction data are of high quality, as assessed by their reproducibility, reciprocity, and agreement with previous observations. Biophysical studies in solution support the relative binding strengths observed with the arrays. New associations provide insights into the circadian clock and the unfolded protein response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Newman, John R S -- Keating, Amy E -- New York, N.Y. -- Science. 2003 Jun 27;300(5628):2097-101. Epub 2003 Jun 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12805554" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Basic-Leucine Zipper Transcription Factors ; Chromatography, High Pressure Liquid ; Circadian Rhythm ; Circular Dichroism ; Cyclic AMP Response Element-Binding Protein/chemistry/metabolism ; DNA-Binding Proteins/chemistry/isolation & purification/*metabolism ; Dimerization ; G-Box Binding Factors ; Humans ; *Leucine Zippers ; Peptides/chemistry/isolation & purification/metabolism ; *Protein Array Analysis ; Protein Binding ; Protein Folding ; Protein Structure, Tertiary ; Signal Transduction ; Temperature ; Thermodynamics ; Transcription Factors/*chemistry/isolation & purification/*metabolism
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  • 36
    Publication Date: 2003-10-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nobrega, Marcelo A -- Ovcharenko, Ivan -- Afzal, Veena -- Rubin, Edward M -- HL66728/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2003 Oct 17;302(5644):413.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉U.S. Department of Energy Joint Genome Institute, Walnut Creek, CA 94598, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14563999" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anura/genetics ; Base Sequence ; Conserved Sequence ; *DNA, Intergenic ; *Drosophila Proteins ; *Enhancer Elements, Genetic ; Evolution, Molecular ; Gene Expression Regulation ; Genes, Reporter ; Humans ; Introns ; Mice ; Mice, Transgenic ; Nuclear Proteins/*genetics ; Synteny ; Takifugu/genetics ; Tetraodontiformes/genetics ; Xenopus/genetics ; Zebrafish/genetics
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  • 37
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2003-09-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yewdell, Jonathan W -- New York, N.Y. -- Science. 2003 Sep 5;301(5638):1334-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892-0440, USA. jyewdell@nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12958347" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation ; CD8-Positive T-Lymphocytes/immunology ; Codon ; Cysteine Endopeptidases/metabolism ; Epstein-Barr Virus Nuclear Antigens/chemistry/*genetics/*immunology/metabolism ; Herpesvirus 4, Human/physiology ; Histocompatibility Antigens Class I/*immunology ; Humans ; Mice ; Mice, Transgenic ; Multienzyme Complexes/metabolism ; Peptides/genetics/*immunology/*metabolism ; Proteasome Endopeptidase Complex ; *Protein Biosynthesis ; Reading Frames ; Ribosomes/metabolism ; Self Tolerance ; Virus Latency
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  • 38
    Publication Date: 2003-08-09
    Description: Various chronic antidepressant treatments increase adult hippocampal neurogenesis, but the functional importance of this phenomenon remains unclear. Here, using genetic and radiological methods, we show that disrupting antidepressant-induced neurogenesis blocks behavioral responses to antidepressants. Serotonin 1A receptor null mice were insensitive to the neurogenic and behavioral effects of fluoxetine, a serotonin selective reuptake inhibitor. X-irradiation of a restricted region of mouse brain containing the hippocampus prevented the neurogenic and behavioral effects of two classes of antidepressants. These findings suggest that the behavioral effects of chronic antidepressants may be mediated by the stimulation of neurogenesis in the hippocampus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Santarelli, Luca -- Saxe, Michael -- Gross, Cornelius -- Surget, Alexandre -- Battaglia, Fortunato -- Dulawa, Stephanie -- Weisstaub, Noelia -- Lee, James -- Duman, Ronald -- Arancio, Ottavio -- Belzung, Catherine -- Hen, Rene -- New York, N.Y. -- Science. 2003 Aug 8;301(5634):805-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Neurobiology and Behavior, Columbia University, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12907793" target="_blank"〉PubMed〈/a〉
    Keywords: 8-Hydroxy-2-(di-n-propylamino)tetralin/pharmacology ; Animals ; Antidepressive Agents/*pharmacology ; Antidepressive Agents, Second-Generation/pharmacology ; Antidepressive Agents, Tricyclic/pharmacology ; Behavior, Animal/*drug effects ; Cell Division/drug effects/radiation effects ; Conditioning (Psychology) ; Dentate Gyrus/cytology/drug effects/physiology ; Fear ; Feeding Behavior/drug effects ; Fluoxetine/*pharmacology ; Grooming/drug effects ; Hippocampus/cytology/drug effects/*physiology/radiation effects ; Long-Term Potentiation/radiation effects ; Male ; Mice ; Mice, Knockout ; Neurons/drug effects/*physiology ; Receptors, Serotonin/genetics/metabolism ; Receptors, Serotonin, 5-HT1 ; Stress, Physiological/drug therapy/physiopathology ; Synaptic Transmission/radiation effects
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  • 39
    Publication Date: 2003-07-19
    Description: Direct quantification of biomolecular interaction by single-molecule force spectroscopy has evolved into a powerful tool for materials and life sciences. We introduce an approach in which the unbinding forces required to break intermolecular bonds are measured in a differential format by comparison with a known reference bond (here, a short DNA duplex). In addition to a marked increase in sensitivity and force resolution, which enabled us to resolve single-base pair mismatches, this concept allows for highly specific parallel assays. This option was exploited to overcome cross-reactions of antibodies in a protein biochip application.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Albrecht, Christian -- Blank, Kerstin -- Lalic-Multhaler, Mio -- Hirler, Siegfried -- Mai, Thao -- Gilbert, Ilka -- Schiffmann, Susanne -- Bayer, Tom -- Clausen-Schaumann, Hauke -- Gaub, Hermann E -- New York, N.Y. -- Science. 2003 Jul 18;301(5631):367-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nanotype GmbH, Lochhamer Schlag 12, 82166 Grafelfing, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12869761" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies ; *Base Pair Mismatch ; *Biosensing Techniques ; Carbocyanines ; Cross Reactions ; *DNA/chemistry/genetics/metabolism ; Dimethylpolysiloxanes ; Fluorescence ; Fluorescent Dyes ; Glass ; Humans ; Immunoassay ; Interleukin-5/analysis/immunology ; Mice ; Microscopy, Atomic Force ; Nucleic Acid Conformation ; Nucleic Acid Hybridization ; Oligodeoxyribonucleotides/chemistry/metabolism ; *Oligonucleotide Array Sequence Analysis ; *Protein Array Analysis ; Protein Binding ; Silicones ; Temperature ; Thermodynamics
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  • 40
    Publication Date: 2003-06-28
    Description: In the mammalian CNS, N-methyl-D-aspartate (NMDA) receptors serve prominent roles in many physiological and pathophysiological processes including pain transmission. For full activation, NMDA receptors require the binding of glycine. It is not known whether the brain uses changes in extracellular glycine to modulate synaptic NMDA responses. Here, we show that synaptically released glycine facilitates NMDA receptor currents in the superficial dorsal horn, an area critically involved in pain processing. During high presynaptic activity, glycine released from inhibitory interneurons escapes the synaptic cleft and reaches nearby NMDA receptors by so-called spillover. In vivo, this process may contribute to the development of inflammatory hyperalgesia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ahmadi, Seifollah -- Muth-Selbach, Uta -- Lauterbach, Andreas -- Lipfert, Peter -- Neuhuber, Winfried L -- Zeilhofer, Hanns Ulrich -- New York, N.Y. -- Science. 2003 Jun 27;300(5628):2094-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Experimentelle und Klinische Pharmakologie und Toxikologie, Universitat Erlangen-Nurnberg, Fahrstrasse 17, D-91054 Erlangen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12829784" target="_blank"〉PubMed〈/a〉
    Keywords: Analgesics/pharmacology ; Animals ; Anterior Horn Cells/drug effects/metabolism ; Diffusion ; Electric Stimulation ; Evoked Potentials/drug effects ; Excitatory Postsynaptic Potentials/drug effects ; Glycine/*metabolism/pharmacology ; In Vitro Techniques ; Interneurons/metabolism ; Neural Inhibition/drug effects ; Opioid Peptides/pharmacology ; Pain Measurement ; Patch-Clamp Techniques ; Posterior Horn Cells/drug effects/*metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/*metabolism ; Serine/pharmacology ; Spinal Cord/drug effects/metabolism ; Synapses/*metabolism ; *Synaptic Transmission/drug effects ; Temperature
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  • 41
    Publication Date: 2003-09-27
    Description: The classical paradigm for dendritic cell function derives from the study of Langerhans cells, which predominate within skin epidermis. After an encounter with foreign agents, Langerhans cells are thought to migrate to draining lymph nodes, where they initiate T cell priming. Contrary to this, we show here that infection of murine epidermis by herpes simplex virus did not result in the priming of virus-specific cytotoxic T lymphocytes by Langerhans cells. Rather, the priming response required a distinct CD8alpha+ dendritic cell subset. Thus, the traditional view of Langerhans cells in epidermal immunity needs to be revisited to accommodate a requirement for other dendritic cells in this response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allan, Rhys S -- Smith, Chris M -- Belz, Gabrielle T -- van Lint, Allison L -- Wakim, Linda M -- Heath, William R -- Carbone, Francis R -- New York, N.Y. -- Science. 2003 Sep 26;301(5641):1925-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, The University of Melbourne, Melbourne, Victoria 3010, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14512632" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation ; Antigens, CD/analysis ; Antigens, CD8/*analysis ; Antigens, Viral/immunology ; Cell Separation ; Chimera ; Cytotoxicity, Immunologic ; Dendritic Cells/*immunology ; Epidermis/*immunology ; H-2 Antigens/analysis/immunology ; Herpes Simplex/*immunology ; Herpesvirus 1, Human/*immunology ; Histocompatibility Antigens Class II/analysis ; Langerhans Cells/*immunology ; Lectins, C-Type/analysis ; Lymph Nodes/immunology ; Lymphocyte Activation ; Mice ; Mice, Inbred C57BL ; Mice, Inbred Strains ; Mice, Transgenic ; Receptors, Cell Surface/analysis ; T-Lymphocytes, Cytotoxic/*immunology ; Viral Envelope Proteins/immunology
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  • 42
    Publication Date: 2003-04-12
    Description: The CD8+ cytotoxic T cell response to pathogens is thought to be CD4+ helper T cell independent because infectious agents provide their own inflammatory signals. Mice that lack CD4+ T cells mount a primary CD8 response to Listeria monocytogenes equal to that of wild-type mice and rapidly clear the infection. However, protective memory to a challenge is gradually lost in the former animals. Memory CD8+ T cells from normal mice can respond rapidly, but memory CD8+ T cells that are generated without CD4 help are defective in their ability to respond to secondary encounters with antigen. The results highlight a previously undescribed role for CD4 help in promoting protective CD8 memory development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2778341/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2778341/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, Joseph C -- Bevan, Michael J -- AI 19335/AI/NIAID NIH HHS/ -- R01 AI019335/AI/NIAID NIH HHS/ -- R01 AI019335-19/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2003 Apr 11;300(5617):339-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology and the Howard Hughes Medical Institute, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12690202" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Animals ; CD8-Positive T-Lymphocytes/*immunology/transplantation ; Cytotoxicity, Immunologic ; Genes, MHC Class II ; Immunization ; *Immunologic Memory ; Interferon-gamma/biosynthesis ; Listeria monocytogenes/genetics/immunology ; Listeriosis/*immunology ; Mice ; Mice, Inbred C57BL ; Ovalbumin/biosynthesis/genetics/immunology ; T-Lymphocyte Subsets/immunology ; T-Lymphocytes, Helper-Inducer/*immunology
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  • 43
    Publication Date: 2003-07-19
    Description: We collected and completely sequenced 28,469 full-length complementary DNA clones from Oryza sativa L. ssp. japonica cv. Nipponbare. Through homology searches of publicly available sequence data, we assigned tentative protein functions to 21,596 clones (75.86%). Mapping of the cDNA clones to genomic DNA revealed that there are 19,000 to 20,500 transcription units in the rice genome. Protein informatics analysis against the InterPro database revealed the existence of proteins presented in rice but not in Arabidopsis. Sixty-four percent of our cDNAs are homologous to Arabidopsis proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rice Full-Length cDNA Consortium -- National Institute of Agrobiological Sciences Rice Full-Length cDNA Project Team -- Kikuchi, Shoshi -- Satoh, Kouji -- Nagata, Toshifumi -- Kawagashira, Nobuyuki -- Doi, Koji -- Kishimoto, Naoki -- Yazaki, Junshi -- Ishikawa, Masahiro -- Yamada, Hitomi -- Ooka, Hisako -- Hotta, Isamu -- Kojima, Keiichi -- Namiki, Takahiro -- Ohneda, Eisuke -- Yahagi, Wataru -- Suzuki, Kohji -- Li, Chao Jie -- Ohtsuki, Kenji -- Shishiki, Toru -- Foundation of Advancement of International Science Genome Sequencing & Analysis Group -- Otomo, Yasuhiro -- Murakami, Kazuo -- Iida, Yoshiharu -- Sugano, Sumio -- Fujimura, Tatsuto -- Suzuki, Yutaka -- Tsunoda, Yuki -- Kurosaki, Takashi -- Kodama, Takeko -- Masuda, Hiromi -- Kobayashi, Michie -- Xie, Quihong -- Lu, Min -- Narikawa, Ryuya -- Sugiyama, Akio -- Mizuno, Kouichi -- Yokomizo, Satoko -- Niikura, Junko -- Ikeda, Rieko -- Ishibiki, Junya -- Kawamata, Midori -- Yoshimura, Akemi -- Miura, Junichirou -- Kusumegi, Takahiro -- Oka, Mitsuru -- Ryu, Risa -- Ueda, Mariko -- Matsubara, Kenichi -- RIKEN -- Kawai, Jun -- Carninci, Piero -- Adachi, Jun -- Aizawa, Katsunori -- Arakawa, Takahiro -- Fukuda, Shiro -- Hara, Ayako -- Hashizume, Wataru -- Hayatsu, Norihito -- Imotani, Koichi -- Ishii, Yoshiyuki -- Itoh, Masayoshi -- Kagawa, Ikuko -- Kondo, Shinji -- Konno, Hideaki -- Miyazaki, Ai -- Osato, Naoki -- Ota, Yoshimi -- Saito, Rintaro -- Sasaki, Daisuke -- Sato, Kenjiro -- Shibata, Kazuhiro -- Shinagawa, Akira -- Shiraki, Toshiyuki -- Yoshino, Masayasu -- Hayashizaki, Yoshihide -- Yasunishi, Ayako -- New York, N.Y. -- Science. 2003 Jul 18;301(5631):376-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, National Institute of Agrobiological Sciences, 2-1-2 Kannon-dai, Tsukuba, Ibaraki 305-8602, Japan. skikuchi@nias.affrc.go.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12869764" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Amino Acid Sequence ; Cloning, Molecular ; Computational Biology ; DNA, Complementary ; Databases, Nucleic Acid ; Databases, Protein ; Genes, Plant ; *Genome, Plant ; Molecular Sequence Data ; Open Reading Frames ; Oryza/*genetics ; Plant Proteins/chemistry/genetics/physiology ; Protein Structure, Tertiary ; RNA, Antisense/genetics ; *Sequence Analysis, DNA ; Sequence Homology, Amino Acid ; Sequence Homology, Nucleic Acid ; Transcription Factors/chemistry/genetics ; Transcription, Genetic
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  • 44
    Publication Date: 2003-11-01
    Description: Mutations in MeCP2, which encodes a protein that has been proposed to function as a global transcriptional repressor, are the cause of Rett syndrome (RT T), an X-linked progressive neurological disorder. Although the selective inactivation of MeCP2 in neurons is sufficient to confer a Rett-like phenotype in mice, the specific functions of MeCP2 in postmitotic neurons are not known. We find that MeCP2 binds selectively to BDNF promoter III and functions to repress expression of the BDNF gene. Membrane depolarization triggers the calcium-dependent phosphorylation and release of MeCP2 from BDNF promoter III, thereby facilitating transcription. These studies indicate that MeCP2 plays a key role in the control of neuronal activity-dependent gene regulation and suggest that the deregulation of this process may underlie the pathology of RT T.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Wen G -- Chang, Qiang -- Lin, Yingxi -- Meissner, Alexander -- West, Anne E -- Griffith, Eric C -- Jaenisch, Rudolf -- Greenberg, Michael E -- HD 18655/HD/NICHD NIH HHS/ -- NS28829/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Oct 31;302(5646):885-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neuroscience, Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14593183" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain-Derived Neurotrophic Factor/*genetics ; Calcium/*metabolism ; Cell Membrane/physiology ; Cells, Cultured ; *Chromosomal Proteins, Non-Histone ; Cloning, Molecular ; CpG Islands ; DNA Methylation ; DNA-Binding Proteins/*metabolism ; Electrophoretic Mobility Shift Assay ; *Gene Expression Regulation ; Gene Silencing ; Histones/metabolism ; Methyl-CpG-Binding Protein 2 ; Methylation ; Mice ; Mice, Knockout ; Neurons/metabolism/physiology ; Phosphorylation ; Potassium Chloride/pharmacology ; Precipitin Tests ; Promoter Regions, Genetic ; Rats ; *Repressor Proteins ; Rett Syndrome/genetics ; *Transcription, Genetic
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  • 45
    Publication Date: 2003-11-25
    Description: Three distinct classes of drugs: dopaminergic agonists (such as D-amphetamine), serotonergic agonists (such as LSD), and glutamatergic antagonists (such as PCP) all induce psychotomimetic states in experimental animals that closely resemble schizophrenia symptoms in humans. Here we implicate a common signaling pathway in mediating these effects. In this pathway, dopamine- and an adenosine 3',5'-monophosphate (cAMP)-regulated phospho-protein of 32 kilodaltons (DARPP-32) is phosphorylated or dephosphorylated at three sites, in a pattern predicted to cause a synergistic inhibition of protein phosphatase-1 and concomitant regulation of its downstream effector proteins glycogen synthesis kinase-3 (GSK-3), cAMP response element-binding protein (CREB), and c-Fos. In mice with a genetic deletion of DARPP-32 or with point mutations in phosphorylation sites of DARPP-32, the effects of D-amphetamine, LSD, and PCP on two behavioral parameters-sensorimotor gating and repetitive movements-were strongly attenuated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Svenningsson, Per -- Tzavara, Eleni T -- Carruthers, Robert -- Rachleff, Ilan -- Wattler, Sigrid -- Nehls, Michael -- McKinzie, David L -- Fienberg, Allen A -- Nomikos, George G -- Greengard, Paul -- DA10044/DA/NIDA NIH HHS/ -- MH40899/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2003 Nov 21;302(5649):1412-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14631045" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine/pharmacology ; Animals ; Brain/drug effects/*metabolism ; Central Nervous System Agents/*pharmacology ; Corpus Striatum/drug effects/metabolism ; Cyclic AMP Response Element-Binding Protein/metabolism ; Dextroamphetamine/pharmacology ; Dopamine/metabolism ; Dopamine and cAMP-Regulated Phosphoprotein 32 ; Frontal Lobe/drug effects/metabolism ; Genes, fos ; Glycogen Synthase Kinase 3/metabolism ; Lysergic Acid Diethylamide/pharmacology ; Male ; Mice ; Mice, Knockout ; Motor Activity/drug effects ; Nerve Tissue Proteins/metabolism ; Phencyclidine/pharmacology ; Phosphoprotein Phosphatases/antagonists & inhibitors ; Phosphoproteins/*metabolism ; Phosphorylation ; Protein Phosphatase 1 ; RNA, Messenger/genetics/metabolism ; Receptors, Dopamine D1/genetics/metabolism ; Reflex, Startle/drug effects ; *Signal Transduction ; Synaptic Transmission
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  • 46
    Publication Date: 2003-03-08
    Description: The mechanisms underlying experience-dependent plasticity in the brain may depend on the AMPA subclass of glutamate receptors (AMPA-Rs). We examined the trafficking of AMPA-Rs into synapses in the developing rat barrel cortex. In vivo gene delivery was combined with in vitro recordings to show that experience drives recombinant GluR1, an AMPA-R subunit, into synapses formed between layer 4 and layer 2/3 neurons. Moreover, expression of the GluR1 cytoplasmic tail, a construct that inhibits synaptic delivery of endogenous AMPA-Rs during long-term potentiation, blocked experience-driven synaptic potentiation. In general, synaptic incorporation of AMPA-Rs in vivo conforms to rules identified in vitro and contributes to plasticity driven by natural stimuli in the mammalian brain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takahashi, Takuya -- Svoboda, Karel -- Malinow, Roberto -- NS032827/NS/NINDS NIH HHS/ -- NS038259/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Mar 7;299(5612):1585-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Jones Laboratory, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12624270" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Electrophysiology ; Gene Transfer Techniques ; Long-Term Potentiation ; *Neuronal Plasticity ; Neurons/*metabolism/virology ; Patch-Clamp Techniques ; Rats ; Receptors, AMPA/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Sindbis Virus/genetics ; Somatosensory Cortex/*metabolism/virology ; Synapses/*metabolism ; *Synaptic Transmission ; Touch ; Vibrissae/physiology
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  • 47
    Publication Date: 2003-08-09
    Description: Alternative pre-messenger RNA splicing is an important mechanism for generating protein diversity and may explain in part how mammalian complexity arises from a surprisingly small complement of genes. Here, we describe "digital polony exon profiling,"a single molecule-based technology for studying complex alternative pre-messenger RNA splicing. This technology allows researchers to monitor the combinatorial diversity of exon inclusion in individual transcripts. A minisequencing strategy provides single nucleotide resolution, and the digital nature of the technology allows quantitation of individual splicing variants. Digital polony exon profiling can be used to investigate the physiological and pathological roles of alternately spliced messenger RNAs, as well as the mechanisms by which these messenger RNAs are produced.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhu, Jun -- Shendure, Jay -- Mitra, Robi D -- Church, George M -- 5U54GM62119/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Aug 8;301(5634):836-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12907803" target="_blank"〉PubMed〈/a〉
    Keywords: Acrylamide ; *Alternative Splicing ; Animals ; Antigens, CD44/genetics ; Brain/metabolism ; Cell Line ; Cell Line, Transformed ; Cyclic AMP Response Element-Binding Protein ; *Exons ; Humans ; Mice ; Microtubule-Associated Proteins/genetics ; Nerve Tissue Proteins/genetics ; Polymerase Chain Reaction/*methods ; Polymorphism, Single Nucleotide ; Protein Isoforms ; RNA Precursors/*genetics/metabolism ; RNA-Binding Proteins ; SMN Complex Proteins
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  • 48
    Publication Date: 2003-01-25
    Description: Disruption of the adaptor protein ELF, a beta-spectrin, leads to disruption of transforming growth factor-beta (TGF-beta) signaling by Smad proteins in mice. Elf-/- mice exhibit a phenotype similar to smad2+/-/smad3+/- mutant mice of midgestational death due to gastrointestinal, liver, neural, and heart defects. We show that TGF-beta triggers phosphorylation and association of ELF with Smad3 and Smad4, followed by nuclear translocation. ELF deficiency results in mislocalization of Smad3 and Smad4 and loss of the TGF-beta-dependent transcriptional response, which could be rescued by overexpression of the COOH-terminal region of ELF. This study reveals an unexpected molecular link between a major dynamic scaffolding protein and a key signaling pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tang, Yi -- Katuri, Varalakshmi -- Dillner, Allan -- Mishra, Bibhuti -- Deng, Chu-Xia -- Mishra, Lopa -- R01 DK56111/DK/NIDDK NIH HHS/ -- R01 DK58637/DK/NIDDK NIH HHS/ -- R03 DK53861/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2003 Jan 24;299(5606):574-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Developmental Biology, Department of Medicine, Georgetown University, Washington, DC 20007, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12543979" target="_blank"〉PubMed〈/a〉
    Keywords: Abnormalities, Multiple ; Animals ; Carrier Proteins/metabolism ; Cell Membrane/metabolism ; Cell Nucleus/metabolism ; Contractile Proteins/metabolism ; DNA-Binding Proteins/metabolism ; Embryonic and Fetal Development ; Filamins ; Gene Targeting ; Genes, fos ; Liver/abnormalities/embryology/*metabolism ; Mice ; Mice, Knockout ; Microfilament Proteins/metabolism ; Microscopy, Confocal ; Mutation ; Phenotype ; Phosphorylation ; Platelet-Derived Growth Factor/pharmacology ; *Signal Transduction ; Smad2 Protein ; Smad3 Protein ; Smad4 Protein ; Spectrin/genetics/*metabolism ; Trans-Activators/metabolism ; Transcriptional Activation ; Transforming Growth Factor beta/*metabolism/pharmacology ; Tumor Cells, Cultured
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  • 49
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-03-28
    Description: The metabotropic glutamate receptors (mGluRs) are widely distributed in the brain and play important roles in synaptic plasticity. Here it is shown that some types of mGluRs are activated not only by glutamate but also by extracellular Ca2+ (Ca2+o). A single amino acid residue was found to determine the sensitivity of mGluRs to Ca2+o. One of the receptors, mGluR1alpha, but not its point mutant with reduced sensitivity to Ca2+o, caused morphological changes when transfected into mammalian cells. Thus, the sensing of Ca2+o by mGluRs may be important in cells under physiological condition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kubo, Y -- Miyashita, T -- Murata, Y -- New York, N.Y. -- Science. 1998 Mar 13;279(5357):1722-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurophysiology, Tokyo Metropolitan Institute for Neuroscience, Musashidai 2-6, Fuchu, Tokyo 183-8526, Japan. ykubo@tmin.ac.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9497291" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/ultrastructure ; Amino Acid Sequence ; Animals ; Binding Sites ; Brain/metabolism ; CHO Cells ; Calcium/*metabolism/pharmacology ; Cell Size ; Cricetinae ; Cyclic AMP/metabolism ; G Protein-Coupled Inwardly-Rectifying Potassium Channels ; Glutamic Acid/metabolism/pharmacology ; Molecular Sequence Data ; Oocytes ; Point Mutation ; Potassium Channels/metabolism ; *Potassium Channels, Inwardly Rectifying ; Rats ; Receptors, Metabotropic Glutamate/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Second Messenger Systems ; Transfection ; Xenopus laevis
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  • 50
    Publication Date: 1998-03-21
    Description: The T cell receptor (TCR) inherently has dual specificity. T cells must recognize self-antigens in the thymus during maturation and then discriminate between foreign pathogens in the periphery. A molecular basis for this cross-reactivity is elucidated by the crystal structure of the alloreactive 2C TCR bound to self peptide-major histocompatibility complex (pMHC) antigen H-2Kb-dEV8 refined against anisotropic 3.0 angstrom resolution x-ray data. The interface between peptide and TCR exhibits extremely poor shape complementarity, and the TCR beta chain complementarity-determining region 3 (CDR3) has minimal interaction with the dEV8 peptide. Large conformational changes in three of the TCR CDR loops are induced upon binding, providing a mechanism of structural plasticity to accommodate a variety of different peptide antigens. Extensive TCR interaction with the pMHC alpha helices suggests a generalized orientation that is mediated by the Valpha domain of the TCR and rationalizes how TCRs can effectively "scan" different peptides bound within a large, low-affinity MHC structural framework for those that provide the slight additional kinetic stabilization required for signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garcia, K C -- Degano, M -- Pease, L R -- Huang, M -- Peterson, P A -- Teyton, L -- Wilson, I A -- AI42266/AI/NIAID NIH HHS/ -- AI42267/AI/NIAID NIH HHS/ -- R01 CA58896/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Feb 20;279(5354):1166-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and the Skaggs Institute of Chemical Biology, The Scripps Research Institute, 10550 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/9469799" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Crystallization ; Crystallography, X-Ray ; H-2 Antigens/*chemistry/*immunology/metabolism ; Ligands ; Mice ; Mice, Transgenic ; Models, Molecular ; Mutation ; Oligopeptides/*chemistry/immunology/metabolism ; Protein Conformation ; Protein Structure, Secondary ; Receptors, Antigen, T-Cell, alpha-beta/*chemistry/*immunology/metabolism ; Recombinant Proteins
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  • 51
    Publication Date: 1998-12-16
    Description: A peripheral membrane protein that is interactive with lymphocytic choriomeningitis virus (LCMV) was purified from cells permissive to infection. Tryptic peptides from this protein were determined to be alpha-dystroglycan (alpha-DG). Several strains of LCMV and other arenaviruses, including Lassa fever virus (LFV), Oliveros, and Mobala, bound to purified alpha-DG protein. Soluble alpha-DG blocked both LCMV and LFV infection. Cells bearing a null mutation of the gene encoding DG were resistant to LCMV infection, and reconstitution of DG expression in null mutant cells restored susceptibility to LCMV infection. Thus, alpha-DG is a cellular receptor for both LCMV and LFV.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cao, W -- Henry, M D -- Borrow, P -- Yamada, H -- Elder, J H -- Ravkov, E V -- Nichol, S T -- Compans, R W -- Campbell, K P -- Oldstone, M B -- AG 00080/AG/NIA NIH HHS/ -- AI 09484/AI/NIAID NIH HHS/ -- DK09712/DK/NIDDK NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1998 Dec 11;282(5396):2079-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Virology, Department of Neuropharmacology, The Scripps Research Institute, 10550 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/9851928" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Arenavirus/metabolism ; Cell Line ; Cytoskeletal Proteins/chemistry/genetics/*metabolism ; Dystroglycans ; Lassa virus/*metabolism/physiology ; Lymphocytic choriomeningitis virus/*metabolism/physiology ; Membrane Glycoproteins/chemistry/genetics/*metabolism ; Mice ; Molecular Sequence Data ; Mutation ; Receptors, Virus/chemistry/*metabolism ; Recombinant Fusion Proteins/metabolism ; Virus Replication
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  • 52
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-04-29
    Description: After the vertebrate lens is induced from head ectoderm, lens-specific genes are expressed. Transcriptional regulation of the lens-specific alphaA-crystallin gene is controlled by an enhancer element, alphaCE2. A gene encoding an alphaCE2-binding protein, L-maf(lens-specific maf), was isolated. L-maf expression is initiated in the lens placode and is restricted to lens cells. The gene product L-Maf regulates the expression of multiple genes expressed in the lens, and ectopic expression of this transcription factor converts chick embryonic ectodermal cells and cultured cells into lens fibers. Thus, vertebrate lens induction and differentiation can be triggered by the activation of L-Maf.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ogino, H -- Yasuda, K -- New York, N.Y. -- Science. 1998 Apr 3;280(5360):115-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0101, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9525857" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Basic-Leucine Zipper Transcription Factors ; Cell Differentiation ; Cells, Cultured ; Chick Embryo ; Crystallins/genetics ; DNA, Complementary ; DNA-Binding Proteins/chemistry/genetics ; Ectoderm ; Enhancer Elements, Genetic ; Eye Proteins/genetics ; G-Box Binding Factors ; *Gene Expression Regulation, Developmental ; Genes, Reporter ; Intermediate Filament Proteins/genetics ; Lens, Crystalline/*cytology/*embryology/metabolism ; Maf Transcription Factors ; Molecular Sequence Data ; Promoter Regions, Genetic ; Recombinant Fusion Proteins/metabolism ; Transcription Factors/chemistry/genetics/*metabolism ; *Transcription, Genetic ; Transcriptional Activation ; Transfection
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  • 53
    Publication Date: 1998-08-07
    Description: The small guanosine triphosphatases (GTPases) Cdc42 and Rac1 regulate E-cadherin-mediated cell-cell adhesion. IQGAP1, a target of Cdc42 and Rac1, was localized with E-cadherin and beta-catenin at sites of cell-cell contact in mouse L fibroblasts expressing E-cadherin (EL cells), and interacted with E-cadherin and beta-catenin both in vivo and in vitro. IQGAP1 induced the dissociation of alpha-catenin from a cadherin-catenin complex in vitro and in vivo. Overexpression of IQGAP1 in EL cells, but not in L cells expressing an E-cadherin-alpha-catenin chimeric protein, resulted in a decrease in E-cadherin-mediated cell-cell adhesive activity. Thus, IQGAP1, acting downstream of Cdc42 and Rac1, appears to regulate cell-cell adhesion through the cadherin-catenin pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kuroda, S -- Fukata, M -- Nakagawa, M -- Fujii, K -- Nakamura, T -- Ookubo, T -- Izawa, I -- Nagase, T -- Nomura, N -- Tani, H -- Shoji, I -- Matsuura, Y -- Yonehara, S -- Kaibuchi, K -- New York, N.Y. -- Science. 1998 Aug 7;281(5378):832-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Signal Transduction, Nara Institute of Science and Technology, Ikoma 630-0101, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9694656" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cadherins/*metabolism ; *Cell Adhesion ; Cell Cycle Proteins/*metabolism ; Cell Membrane/metabolism ; Cytoskeletal Proteins/metabolism ; GTP Phosphohydrolases/*metabolism ; GTP-Binding Proteins/*metabolism ; GTPase-Activating Proteins ; L Cells (Cell Line) ; Mice ; Mutation ; Proteins/*metabolism ; Recombinant Fusion Proteins/metabolism ; Recombinant Proteins/metabolism ; *Trans-Activators ; alpha Catenin ; beta Catenin ; cdc42 GTP-Binding Protein ; rac GTP-Binding Proteins
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  • 54
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-02-07
    Description: The Son of Sevenless (Sos) proteins control receptor-mediated activation of Ras by catalyzing the exchange of guanosine diphosphate for guanosine triphosphate on Ras. The NH2-terminal region of Sos contains a Dbl homology (DH) domain in tandem with a pleckstrin homology (PH) domain. In COS-1 cells, the DH domain of Sos stimulated guanine nucleotide exchange on Rac but not Cdc42 in vitro and in vivo. The tandem DH-PH domain of Sos (DH-PH-Sos) was defective in Rac activation but regained Rac stimulating activity when it was coexpressed with activated Ras. Ras-mediated activation of DH-PH-Sos did not require activation of mitogen-activated protein kinase but it was dependent on activation of phosphoinositide 3-kinase. These results reveal a potential mechanism for coupling of Ras and Rac signaling pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nimnual, A S -- Yatsula, B A -- Bar-Sagi, D -- CA09176/CA/NCI NIH HHS/ -- CA28146/CA/NCI NIH HHS/ -- CA55360/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Jan 23;279(5350):560-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, State University of New York at Stony Brook, Stony Brook, NY 11794, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9438849" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/metabolism ; Animals ; COS Cells ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Cell Cycle Proteins/metabolism ; Cell Line ; Cell Membrane/ultrastructure ; Enzyme Activation ; GTP Phosphohydrolases/*metabolism ; GTP-Binding Proteins/*metabolism ; Guanine Nucleotide Exchange Factors ; Guanosine Diphosphate/metabolism ; Guanosine Triphosphate/metabolism ; Humans ; JNK Mitogen-Activated Protein Kinases ; Membrane Proteins/chemistry/*metabolism ; *Mitogen-Activated Protein Kinases ; Proteins/metabolism ; Proto-Oncogene Proteins ; Recombinant Fusion Proteins/metabolism ; Retroviridae Proteins, Oncogenic/chemistry ; Signal Transduction ; Son of Sevenless Proteins ; Transfection ; cdc42 GTP-Binding Protein ; rac GTP-Binding Proteins ; ras Guanine Nucleotide Exchange Factors ; ras Proteins/*metabolism
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  • 55
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-08-28
    Description: Control of the activation of apoptosis is important both in development and in protection against cancer. In the classic genetic model Caenorhabditis elegans, the pro-apoptotic protein CED-4 activates the CED-3 caspase and is inhibited by the Bcl-2-like protein CED-9. Both processes are mediated by protein-protein interaction. Facilitating the proximity of CED-3 zymogen molecules was found to induce caspase activation and cell death. CED-4 protein oligomerized in cells and in vitro. This oligomerization induced CED-3 proximity and competed with CED-4:CED-9 interaction. Mutations that abolished CED-4 oligomerization inactivated its ability to activate CED-3. Thus, the mechanism of control is that CED-3 in CED-3:CED-4 complexes is activated by CED-4 oligomerization, which is inhibited by binding of CED-9 to CED-4.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, X -- Chang, H Y -- Baltimore, D -- CA51462/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 28;281(5381):1355-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, 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/9721101" target="_blank"〉PubMed〈/a〉
    Keywords: *Apoptosis ; Apoptosis Regulatory Proteins ; Biopolymers ; *Caenorhabditis elegans Proteins ; Calcium-Binding Proteins/*chemistry/genetics/*metabolism ; *Caspases ; Cell Line ; Chemistry, Physical ; Cysteine Endopeptidases/*metabolism ; Cysteine Proteinase Inhibitors/pharmacology ; Enzyme Activation ; Enzyme Precursors/metabolism ; HeLa Cells ; Helminth Proteins/*chemistry/genetics/*metabolism ; Humans ; Mutation ; Oligopeptides/pharmacology ; Physicochemical Phenomena ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-bcl-2/metabolism ; Recombinant Fusion Proteins/metabolism ; Tacrolimus/pharmacology ; Transfection ; bcl-X Protein
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  • 56
    Publication Date: 1998-08-07
    Description: Clathrin-mediated endocytosis involves cycles of assembly and disassembly of clathrin coat components and their accessory proteins. Dephosphorylation of rat brain extract was shown to promote the assembly of dynamin 1, synaptojanin 1, and amphiphysin into complexes that also included clathrin and AP-2. Phosphorylation of dynamin 1 and synaptojanin 1 inhibited their binding to amphiphysin, whereas phosphorylation of amphiphysin inhibited its binding to AP-2 and clathrin. Thus, phosphorylation regulates the association and dissociation cycle of the clathrin-based endocytic machinery, and calcium-dependent dephosphorylation of endocytic proteins could prepare nerve terminals for a burst of endocytosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Slepnev, V I -- Ochoa, G C -- Butler, M H -- Grabs, D -- De Camilli, P -- CA46128/CA/NCI NIH HHS/ -- NS36251/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 7;281(5378):821-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Cell Biology, Yale University School of Medicine, 295 Congress Avenue, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9694653" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Protein Complex alpha Subunits ; Adaptor Protein Complex beta Subunits ; Adaptor Proteins, Vesicular Transport ; Adenosine Triphosphate/metabolism ; Animals ; Binding Sites ; Carbazoles/pharmacology ; Chromatography, Affinity ; Clathrin/*metabolism ; Cyclosporine/pharmacology ; Dimerization ; Dynamin I ; Dynamins ; *Endocytosis ; Enzyme Inhibitors/pharmacology ; GTP Phosphohydrolases/*metabolism ; Indole Alkaloids ; Membrane Proteins/*metabolism ; Nerve Tissue Proteins/*metabolism ; Phosphoric Monoester Hydrolases/*metabolism ; Rats ; Recombinant Fusion Proteins/metabolism ; src Homology Domains
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  • 57
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-12-18
    Description: During T cell activation, the engagement of costimulatory molecules is often crucial to the development of an effective immune response, but the mechanism by which this is achieved is not known. Here, it is shown that beads attached to the surface of a T cell translocate toward the interface shortly after the start of T cell activation. This movement appears to depend on myosin motor proteins and requires the engagement of the major costimulatory receptor pairs, B7-CD28 and ICAM-1-LFA-1. This suggests that the engagement of costimulatory receptors triggers an active accumulation of molecules at the interface of the T cell and the antigen-presenting cell, which then increases the overall amplitude and duration of T cell signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wulfing, C -- Davis, M M -- New York, N.Y. -- Science. 1998 Dec 18;282(5397):2266-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9856952" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation ; Antigen-Presenting Cells/immunology ; Antigens, CD/*metabolism ; Antigens, CD28/metabolism ; Antigens, CD86 ; Biotinylation ; CHO Cells ; Calcium/metabolism ; Cricetinae ; Cytoskeleton/*physiology ; Intercellular Adhesion Molecule-1/metabolism ; *Lymphocyte Activation ; Lymphocyte Function-Associated Antigen-1/metabolism ; Membrane Glycoproteins/metabolism ; Mice ; Microspheres ; Molecular Motor Proteins/physiology ; Myosins/physiology ; Phosphatidylinositol 3-Kinases/metabolism ; Receptors, Antigen, T-Cell/immunology ; Signal Transduction ; T-Lymphocytes/*immunology/metabolism/ultrastructure ; Tumor Cells, Cultured
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-06-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sikorski, R -- Peters, R -- New York, N.Y. -- Science. 1998 May 15;280(5366):1101.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9616082" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Gene Library ; Gene Targeting ; *Genetic Techniques ; Genetic Vectors ; Mice ; Mice, Knockout/*genetics ; Mutagenesis, Insertional ; Sequence Analysis, DNA ; *Stem Cells
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  • 59
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-08-14
    Description: Differential actions of acetylcholine on the excitability of two subtypes of interneurons in layer V of the rat visual cortex were examined. Acetylcholine excited low-threshold spike (LTS) cells through nicotinic receptors, whereas it elicited hyperpolarization in fast spiking (FS) cells through muscarinic receptors. Axons of LTS cells were mainly distributed vertically to upper layers, and those of FS cells were primarily confined to layer V. Thus, cortical cholinergic activation may reduce some forms of intralaminar inhibition, promote intracolumnar inhibition, and change the direction of information flow within cortical circuits.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xiang, Z -- Huguenard, J R -- Prince, D A -- NS 06477/NS/NINDS NIH HHS/ -- NS 07280/NS/NINDS NIH HHS/ -- NS 12151/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1998 Aug 14;281(5379):985-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology and Neurological Sciences, Stanford University Medical Center, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9703513" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholine/*physiology ; Animals ; Hexamethonium/pharmacology ; In Vitro Techniques ; Interneurons/physiology ; Membrane Potentials ; Muscarinic Antagonists/pharmacology ; Nerve Net/*physiology ; *Neural Inhibition ; Nicotinic Antagonists/pharmacology ; Patch-Clamp Techniques ; Rats ; Rats, Sprague-Dawley ; Receptors, Nicotinic/physiology ; Scopolamine Hydrobromide/pharmacology ; Visual Cortex/cytology/*physiology
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  • 60
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-03-21
    Description: Mice homozygous for a disrupted allele of the mismatch repair gene Pms2 have a mutator phenotype. When this allele is crossed into quasi-monoclonal (QM) mice, which have a very limited B cell repertoire, homozygotes have fewer somatic mutations at the immunoglobulin heavy chain and lambda chain loci than do heterozygotes or wild-type QM mice. That is, mismatch repair seems to contribute to somatic hypermutation rather than stifling it. It is suggested that at immunoglobulin loci in hypermutable B cells, mismatched base pairs are "corrected" according to the newly synthesized DNA strand, thereby fixing incipient mutations instead of eliminating them.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cascalho, M -- Wong, J -- Steinberg, C -- Wabl, M -- 1R01 GM37699/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Feb 20;279(5354):1207-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, University of California, San Francisco, CA 94143-0670, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9469811" target="_blank"〉PubMed〈/a〉
    Keywords: *Adenosine Triphosphatases ; Alleles ; Amino Acid Sequence ; Animals ; B-Lymphocytes/immunology ; Base Composition ; Base Sequence ; Cloning, Molecular ; Crosses, Genetic ; *DNA Repair ; *DNA Repair Enzymes ; *DNA-Binding Proteins ; Female ; Gene Rearrangement ; *Genes, Immunoglobulin ; Heterozygote ; Immunoglobulin Heavy Chains/chemistry/genetics ; Immunoglobulin Variable Region/chemistry/*genetics ; Immunoglobulin lambda-Chains/chemistry/genetics ; Male ; Mice ; Mice, Knockout ; Molecular Sequence Data ; *Mutation ; Proteins/*genetics/physiology
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  • 61
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gearhart, J -- New York, N.Y. -- Science. 1998 Nov 6;282(5391):1061-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Gynecology and Obstetrics, Johns Hopkins Medicine, Baltimore, MD 21287, USA. gearhart@jhmi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841453" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst/*cytology ; *Cell Culture Techniques ; Cell Differentiation ; *Cell Line ; Cell Lineage ; *Embryo Research ; Embryo, Mammalian/*cytology ; Federal Government ; Germ Cells/*cytology ; Government Regulation ; Guidelines as Topic ; Humans ; Major Histocompatibility Complex ; Mice ; Research Support as Topic ; Risk Assessment ; Stem Cell Transplantation ; Stem Cells/*cytology ; Transplantation Immunology ; United States
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  • 62
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-04-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chess, A -- New York, N.Y. -- Science. 1998 Mar 27;279(5359):2067-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA. chess@wi.mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9537917" target="_blank"〉PubMed〈/a〉
    Keywords: *Alleles ; Animals ; CD4-Positive T-Lymphocytes/*immunology ; DNA Replication ; *Gene Expression Regulation ; Genes, Immunoglobulin ; Interleukin-2/*genetics ; Lymphocyte Activation ; Mice ; Polymerase Chain Reaction ; Receptors, Antigen, T-Cell/metabolism ; Signal Transduction ; Transcription, Genetic
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  • 63
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-07-10
    Description: The 2.5 angstrom resolution x-ray crystal structure of the Escherichia coli RNA polymerase (RNAP) alpha subunit amino-terminal domain (alphaNTD), which is necessary and sufficient to dimerize and assemble the other RNAP subunits into a transcriptionally active enzyme and contains all of the sequence elements conserved among eukaryotic alpha homologs, has been determined. The alphaNTD monomer comprises two distinct, flexibly linked domains, only one of which participates in the dimer interface. In the alphaNTD dimer, a pair of helices from one monomer interact with the cognate helices of the other to form an extensive hydrophobic core. All of the determinants for interactions with the other RNAP subunits lie on one face of the alphaNTD dimer. Sequence alignments, combined with secondary-structure predictions, support proposals that a heterodimer of the eukaryotic RNAP subunits related to Saccharomyces cerevisiae Rpb3 and Rpb11 plays the role of the alphaNTD dimer in prokaryotic RNAP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, G -- Darst, S A -- GM19441-01/GM/NIGMS NIH HHS/ -- GM53759/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Jul 10;281(5374):262-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rockefeller University, 1230 York Avenue, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9657722" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Crystallography, X-Ray ; DNA-Directed RNA Polymerases/*chemistry ; Dimerization ; Escherichia coli/*enzymology ; Models, Molecular ; Molecular Sequence Data ; *Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; RNA Polymerase II/chemistry ; *Saccharomyces cerevisiae Proteins ; Sequence Alignment
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  • 64
    Publication Date: 1998-02-28
    Description: In the adult mouse, single and compound null mutations in the genes for retinoic acid receptor beta and retinoid X receptors beta and gamma resulted in locomotor defects related to dysfunction of the mesolimbic dopamine signaling pathway. Expression of the D1 and D2 receptors for dopamine was reduced in the ventral striatum of mutant mice, and the response of double null mutant mice to cocaine, which affects dopamine signaling in the mesolimbic system, was blunted. Thus, retinoid receptors are involved in the regulation of brain functions, and retinoic acid signaling defects may contribute to pathologies such as Parkinson's disease and schizophrenia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krezel, W -- Ghyselinck, N -- Samad, T A -- Dupe, V -- Kastner, P -- Borrelli, E -- Chambon, P -- New York, N.Y. -- Science. 1998 Feb 6;279(5352):863-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Genetique et de Biologie Moleculaire et Cellulaire, CNRS, INSERM, Universite Louis Pasteur, College de France, Boite Postale 163, 67404 Illkirch Cedex, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9452386" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cocaine/pharmacology ; Corpus Striatum/*metabolism ; Dimerization ; Dopamine/*metabolism ; Locomotion ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; *Motor Activity/drug effects ; Muscle, Skeletal/physiology ; Parkinson Disease/etiology ; Peripheral Nervous System/physiology ; Receptors, Dopamine D1/genetics/metabolism ; Receptors, Dopamine D2/genetics/metabolism ; Receptors, Retinoic Acid/genetics/*physiology ; Retinoid X Receptors ; Schizophrenia/etiology ; *Signal Transduction ; Transcription Factors/genetics/*physiology
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  • 65
    Publication Date: 1998-12-18
    Description: CTLA-4, a negative regulator of T cell function, was found to associate with the T cell receptor (TCR) complex zeta chain in primary T cells. The association of TCRzeta with CTLA-4, reconstituted in 293 transfectants, was enhanced by p56(lck)-induced tyrosine phosphorylation. Coexpression of the CTLA-4-associated tyrosine phosphatase, SHP-2, resulted in dephosphorylation of TCRzeta bound to CTLA-4 and abolished the p56(lck)-inducible TCRzeta-CTLA-4 interaction. Thus, CTLA-4 inhibits TCR signal transduction by binding to TCRzeta and inhibiting tyrosine phosphorylation after T cell activation. These findings have broad implications for the negative regulation of T cell function and T cell tolerance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, K M -- Chuang, E -- Griffin, M -- Khattri, R -- Hong, D K -- Zhang, W -- Straus, D -- Samelson, L E -- Thompson, C B -- Bluestone, J A -- P01 AI35294-6/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1998 Dec 18;282(5397):2263-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ben May Institute for Cancer Research, and Committee on Immunology, University of Chicago, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9856951" target="_blank"〉PubMed〈/a〉
    Keywords: Abatacept ; Animals ; Antigens, CD ; Antigens, Differentiation/*metabolism ; CTLA-4 Antigen ; Cell Line ; Cells, Cultured ; Humans ; *Immunoconjugates ; Intracellular Signaling Peptides and Proteins ; *Lymphocyte Activation ; Lymphocyte Specific Protein Tyrosine Kinase p56(lck)/genetics/metabolism ; Membrane Proteins/*metabolism ; Mice ; Mice, Inbred BALB C ; Models, Immunological ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein Tyrosine Phosphatase, Non-Receptor Type 11 ; Protein Tyrosine Phosphatase, Non-Receptor Type 6 ; Protein Tyrosine Phosphatases/genetics/metabolism ; Receptors, Antigen, T-Cell/*metabolism ; Recombinant Fusion Proteins/metabolism ; SH2 Domain-Containing Protein Tyrosine Phosphatases ; *Signal Transduction ; T-Lymphocytes/*immunology ; Transfection ; src Homology Domains
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  • 66
    Publication Date: 1998-02-21
    Description: CREB binding protein (CBP) functions as an essential coactivator of transcription factors that are inhibited by the adenovirus early gene product E1A. Transcriptional activation by the signal transducer and activator of transcription-1 (STAT1) protein requires the C/H3 domain in CBP, which is the primary target of E1A inhibition. Here it was found that the C/H3 domain is not required for retinoic acid receptor (RAR) function, nor is it involved in E1A inhibition. Instead, E1A inhibits RAR function by preventing the assembly of CBP-nuclear receptor coactivator complexes, revealing differences in required CBP domains for transcriptional activation by RAR and STAT1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kurokawa, R -- Kalafus, D -- Ogliastro, M H -- Kioussi, C -- Xu, L -- Torchia, J -- Rosenfeld, M G -- Glass, C K -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):700-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cellular and Molecular Medicine, Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0651, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9445474" target="_blank"〉PubMed〈/a〉
    Keywords: Adenovirus E1A Proteins/*metabolism/pharmacology ; Animals ; Binding Sites ; CREB-Binding Protein ; Cell Differentiation ; Cell Line ; DNA-Binding Proteins/metabolism ; Histone Acetyltransferases ; Humans ; Mutation ; Nuclear Proteins/chemistry/genetics/*metabolism ; Nuclear Receptor Coactivator 1 ; Nuclear Receptor Coactivator 3 ; Protein Binding ; Receptors, Retinoic Acid/metabolism ; Recombinant Fusion Proteins/metabolism ; STAT1 Transcription Factor ; Trans-Activators/metabolism ; Transcription Factors/chemistry/genetics/*metabolism ; *Transcription, Genetic ; Transcriptional Activation ; Tretinoin/pharmacology
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  • 67
    Publication Date: 1998-04-16
    Description: FADD (also known as Mort-1) is a signal transducer downstream of cell death receptor CD95 (also called Fas). CD95, tumor necrosis factor receptor type 1 (TNFR-1), and death receptor 3 (DR3) did not induce apoptosis in FADD-deficient embryonic fibroblasts, whereas DR4, oncogenes E1A and c-myc, and chemotherapeutic agent adriamycin did. Mice with a deletion in the FADD gene did not survive beyond day 11.5 of embryogenesis; these mice showed signs of cardiac failure and abdominal hemorrhage. Chimeric embryos showing a high contribution of FADD null mutant cells to the heart reproduce the phenotype of FADD-deficient mutants. Thus, not only death receptors, but also receptors that couple to developmental programs, may use FADD for signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yeh, W C -- de la Pompa, J L -- McCurrach, M E -- Shu, H B -- Elia, A J -- Shahinian, A -- Ng, M -- Wakeham, A -- Khoo, W -- Mitchell, K -- El-Deiry, W S -- Lowe, S W -- Goeddel, D V -- Mak, T W -- CA13106/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1954-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Amgen Institute, University of Toronto, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9506948" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Animals ; Antigens, CD95/genetics/physiology ; *Apoptosis ; Carrier Proteins/genetics/*physiology ; Cell Transformation, Neoplastic ; Cells, Cultured ; Doxorubicin/pharmacology ; *Embryonic and Fetal Development ; Endothelium, Vascular/embryology ; Fas-Associated Death Domain Protein ; Female ; Gene Expression ; Gene Targeting ; Heart/*embryology ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Mutation ; Oncogenes ; Receptors, Tumor Necrosis Factor/genetics/physiology ; Signal Transduction ; Tumor Necrosis Factor-alpha/pharmacology
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  • 68
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-04-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steel, K P -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1870-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council, Institute of Hearing Research, Nottingham NG7 2RD, UK. karen@ihr.mrc.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9537904" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Animals ; Carrier Proteins/genetics/physiology ; Cell Differentiation ; Chromosome Mapping ; Chromosomes, Human, Pair 5/genetics ; Deafness/*genetics ; Dyneins ; Female ; Gene Targeting ; Genes, Dominant ; Hair Cells, Auditory/physiology ; Hearing Loss, Sensorineural/*genetics ; Homeodomain Proteins/*genetics/metabolism ; Humans ; Male ; Mice ; Myosins/genetics/physiology ; Pedigree ; Sequence Deletion ; Transcription Factor Brn-3C ; Transcription Factors/*genetics/metabolism/physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 69
    Publication Date: 1998-02-21
    Description: Protein kinase B (PKB) is activated in response to phosphoinositide 3-kinases and their lipid products phosphatidylinositol 3,4, 5-trisphosphate [PtdIns(3,4,5)P3] and PtdIns(3,4)P2 in the signaling pathways used by a wide variety of growth factors, antigens, and inflammatory stimuli. PKB is a direct target of these lipids, but this regulation is complex. The lipids can bind to the pleckstrin homologous domain of PKB, causing its translocation to the membrane, and also enable upstream, Thr308-directed kinases to phosphorylate and activate PKB. Four isoforms of these PKB kinases were purified from sheep brain. They bound PtdIns(3,4,5)P3 and associated with lipid vesicles containing it. These kinases contain an NH2-terminal catalytic domain and a COOH-terminal pleckstrin homologous domain, and their heterologous expression augments receptor activation of PKB, which suggests they are the primary signal transducers that enable PtdIns(3,4,5)P3 or PtdIns- (3,4)P2 to activate PKB and hence to control signaling pathways regulating cell survival, glucose uptake, and glycogen metabolism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stephens, L -- Anderson, K -- Stokoe, D -- Erdjument-Bromage, H -- Painter, G F -- Holmes, A B -- Gaffney, P R -- Reese, C B -- McCormick, F -- Tempst, P -- Coadwell, J -- Hawkins, P T -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):710-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Inositide Laboratory, The Babraham Institute, Babraham, Cambridge CB2 4AT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9445477" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Phosphoinositide-Dependent Protein Kinases ; Alternative Splicing ; Amino Acid Sequence ; Animals ; Cell Line ; Cell Membrane/enzymology ; Cloning, Molecular ; DNA, Complementary ; Drosophila ; Drosophila Proteins ; Enzyme Activation ; Humans ; Liposomes/metabolism ; Molecular Sequence Data ; Open Reading Frames ; Phosphatidylinositol Phosphates/*metabolism ; Phosphorylation ; Platelet-Derived Growth Factor/pharmacology ; Protein-Serine-Threonine Kinases/chemistry/genetics/isolation & ; purification/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-akt ; Rats ; Recombinant Proteins/metabolism ; Sheep ; *Signal Transduction
    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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  • 70
    Publication Date: 1998-08-14
    Description: The timing and localization of DNA replication initiation in mammalian cells are heritable traits, but it is not known whether initiation requires specific DNA sequences. A site-specific recombination strategy was used to show that DNA sequences previously identified as replication initiation sites could initiate replication when transferred to new chromosomal locations. An 8-kilobase DNA sequence encompassing the origin of DNA replication in the human beta-globin locus initiated replication in the simian genome. Specific deletions within the globin origin did not initiate replication in these chromosomal sites. These data suggest that initiation of DNA replication in mammalian cells requires specific sequence information and extend the replicon hypothesis to higher eukaryotes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aladjem, M I -- Rodewald, L W -- Kolman, J L -- Wahl, G M -- CA48405/CA/NCI NIH HHS/ -- GM51104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 14;281(5379):1005-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Gene Expression Laboratory, The Salk Institute, San Diego, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9703500" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cercopithecus aethiops ; DNA/genetics ; DNA Nucleotidyltransferases/metabolism ; *DNA Replication ; Gene Targeting ; Globins/*genetics ; Humans ; Integrases/metabolism ; Polymerase Chain Reaction ; *Replication Origin ; S Phase ; Sequence Deletion ; *Viral Proteins
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 71
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-11-30
    Description: Fas ligand (CD95L) inhibits T cell function in immune-privileged organs such as the eye and testis, yet in most tissues CD95L expression induces potent inflammatory responses. With a stably transfected colon carcinoma cell line, CT26-CD95L, the molecular basis for these divergent responses was defined. When injected subcutaneously, rejection of CT26-CD95L was caused by neutrophils activated by CD95L. CT26-CD95L survived in the intraocular space because of the presence of transforming growth factor-beta (TGF-beta), which inhibited neutrophil activation. Providing TGF-beta to subcutaneous sites protected against tumor rejection. Thus, these cytokines together generate a microenvironment that promotes immunologic tolerance, which may aid in the amelioration of allograft rejection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, J J -- Sun, Y -- Nabel, G J -- New York, N.Y. -- Science. 1998 Nov 27;282(5394):1714-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Michigan Medical Center, Departments of Internal Medicine and Biological Chemistry, 1150 West Medical Center Drive, 4520 Medical Science Research Building I, Ann Arbor, MI 48109-0650, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9831564" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anterior Chamber ; Apoptosis ; Calcium-Calmodulin-Dependent Protein Kinases/antagonists & inhibitors/metabolism ; Cytotoxicity, Immunologic ; Fas Ligand Protein ; Female ; Graft Rejection ; Humans ; Immune Tolerance ; Inflammation/*immunology ; Jurkat Cells ; Membrane Glycoproteins/*physiology ; Mice ; Mice, Inbred BALB C ; *Mitogen-Activated Protein Kinases ; Neoplasm Transplantation ; Neoplasms, Experimental/*immunology/pathology ; *Neutrophil Activation ; Neutrophils/immunology ; Transfection ; Transforming Growth Factor beta/pharmacology ; Tumor Cells, Cultured ; p38 Mitogen-Activated Protein Kinases
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  • 72
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-01-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chesebro, B -- New York, N.Y. -- Science. 1998 Jan 2;279(5347):42-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Persistent Virus Diseases, Rocky Mountain Laboratories, Hamilton, MT 59840, USA. bchesebro@nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9441410" target="_blank"〉PubMed〈/a〉
    Keywords: Amyloid/chemistry ; Amyloidosis/metabolism ; Animals ; Cattle ; Creutzfeldt-Jakob Syndrome/epidemiology/*etiology/transmission ; Disease Susceptibility ; Encephalopathy, Bovine Spongiform/epidemiology/*etiology/transmission ; Gene Expression ; Great Britain/epidemiology ; Humans ; Mice ; Mice, Transgenic ; Mutation ; Prion Diseases/*etiology/transmission ; Prions/chemistry/genetics/metabolism/*pathogenicity ; Virus Physiological Phenomena ; Viruses/pathogenicity
    Print ISSN: 0036-8075
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  • 73
    Publication Date: 1998-08-28
    Description: A large protein complex mediates the phosphorylation of the inhibitor of kappaB (IkappaB), which results in the activation of nuclear factor kappaB (NF-kappaB). Two subunits of this complex, IkappaB kinase alpha (IKKalpha) and IkappaB kinase beta (IKKbeta), are required for NF-kappaB activation. Purified recombinant IKKalpha and IKKbeta expressed in insect cells were used to demonstrate that each protein can directly phosphorylate IkappaB proteins. IKKalpha and IKKbeta were found to form both homodimers and heterodimers. Both IKKalpha and IKKbeta phosphorylated IkappaB bound to NF-kappaB more efficiently than they phosphorylated free IkappaB. This result explains how free IkappaB can accumulate in cells in which IKK is still active and thus can contribute to the termination of NF-kappaB activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zandi, E -- Chen, Y -- Karin, M -- AI 43477/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 28;281(5381):1360-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9721103" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Dimerization ; Enzyme Activation ; HeLa Cells ; Helix-Loop-Helix Motifs ; Humans ; I-kappa B Kinase ; Leucine Zippers ; Mutation ; NF-kappa B/antagonists & inhibitors/*metabolism ; Phosphorylation ; Protein-Serine-Threonine Kinases/chemistry/genetics/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Recombinant Fusion Proteins/metabolism ; Recombinant Proteins/metabolism ; Spodoptera ; Transcription Factor RelB ; *Transcription Factors
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 74
    Publication Date: 1998-08-14
    Description: The breast and ovarian cancer susceptibility gene BRCA1 encodes a zinc finger protein of unknown function. Association of the BRCA1 protein with the DNA repair protein Rad51 and changes in the phosphorylation and cellular localization of the protein after exposure to DNA-damaging agents are consistent with a role for BRCA1 in DNA repair. Here, it is shown that mouse embryonic stem cells deficient in BRCA1 are defective in the ability to carry out transcription-coupled repair of oxidative DNA damage, and are hypersensitive to ionizing radiation and hydrogen peroxide. These results suggest that BRCA1 participates, directly or indirectly, in transcription-coupled repair of oxidative DNA damage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gowen, L C -- Avrutskaya, A V -- Latour, A M -- Koller, B H -- Leadon, S A -- CA40453/CA/NCI NIH HHS/ -- CA70490/CA/NCI NIH HHS/ -- IP50CA58223/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 14;281(5379):1009-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Curriculum in Genetics and Molecular Biology and Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9703501" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; BRCA1 Protein/genetics/*physiology ; Cell Line ; DNA Damage ; *DNA Repair ; Hydrogen Peroxide ; Mice ; Oxidation-Reduction ; Stem Cells ; Thymine/analogs & derivatives/immunology/metabolism ; Transcription, Genetic ; Ultraviolet Rays
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  • 75
    Publication Date: 1998-03-21
    Description: Viral infection is sometimes associated with the initiation or exacerbation of autoimmune disease, although the underlying mechanisms remain unclear. One proposed mechanism is that viral determinants that mimic host antigens trigger self-reactive T cell clones to destroy host tissue. An epitope expressed by a coat protein of herpes simplex virus-type 1 (HSV-1) KOS strain has now been shown to be recognized by autoreactive T cells that target corneal antigens in a murine model of autoimmune herpes stromal keratitis. Mutant HSV-1 viruses that lacked this epitope did not induce autoimmune disease. Thus, expression of molecular mimics can influence the development of autoimmune disease after viral infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, Z S -- Granucci, F -- Yeh, L -- Schaffer, P A -- Cantor, H -- AI 37562/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1998 Feb 27;279(5355):1344-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Harvard Medical School, and Department of Cancer Immunology and AIDS, Dana-Farber Cancer Institute, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9478893" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Amino Acid Sequence ; Animals ; Autoantigens/immunology ; Autoimmune Diseases/*immunology ; CD4-Positive T-Lymphocytes/immunology ; Capsid/chemistry/genetics/*immunology ; *Capsid Proteins ; Cornea/*immunology ; Epitopes ; Eye Proteins/immunology ; Herpesvirus 1, Human/*immunology ; Keratitis, Herpetic/*immunology ; Lymphocyte Activation ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Mice, SCID ; *Molecular Mimicry ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Oligopeptides/immunology ; Viral Proteins
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 76
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-03-28
    Description: The OxyR transcription factor is sensitive to oxidation and activates the expression of antioxidant genes in response to hydrogen peroxide in Escherichia coli. Genetic and biochemical studies revealed that OxyR is activated through the formation of a disulfide bond and is deactivated by enzymatic reduction with glutaredoxin 1 (Grx1). The gene encoding Grx1 is regulated by OxyR, thus providing a mechanism for autoregulation. The redox potential of OxyR was determined to be -185 millivolts, ensuring that OxyR is reduced in the absence of stress. These results represent an example of redox signaling through disulfide bond formation and reduction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zheng, M -- Aslund, F -- Storz, G -- New York, N.Y. -- Science. 1998 Mar 13;279(5357):1718-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Biology and Metabolism Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9497290" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Bacterial Proteins/genetics/metabolism ; Base Sequence ; Cysteine/metabolism ; *DNA-Binding Proteins ; Disulfides/*metabolism ; Escherichia coli/genetics/*metabolism ; Escherichia coli Proteins ; Gene Expression Regulation, Bacterial ; Glutaredoxins ; Glutathione/metabolism ; Glutathione Disulfide/metabolism ; Glutathione Reductase/metabolism ; Hydrogen Peroxide/*metabolism/pharmacology ; Molecular Sequence Data ; Oxidation-Reduction ; Oxidative Stress ; *Oxidoreductases ; Proteins/genetics/metabolism ; Repressor Proteins/genetics/*metabolism ; Signal Transduction ; Thioredoxins/metabolism ; Transcription Factors/genetics/*metabolism
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  • 77
    Publication Date: 1998-11-30
    Description: The NPH1 gene of Arabidopsis thaliana encodes a 120-kilodalton serine-threonine protein kinase hypothesized to function as a photoreceptor for phototropism. When expressed in insect cells, the NPH1 protein is phosphorylated in response to blue light irradiation. The biochemical and photochemical properties of the photosensitive protein reflect those of the native protein in microsomal membranes. Recombinant NPH1 noncovalently binds flavin mononucleotide, a likely chromophore for light-dependent autophosphorylation. The fluorescence excitation spectrum of the recombinant protein is similar to the action spectrum for phototropism, consistent with the conclusion that NPH1 is an autophosphorylating flavoprotein photoreceptor mediating phototropic responses in higher plants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Christie, J M -- Reymond, P -- Powell, G K -- Bernasconi, P -- Raibekas, A A -- Liscum, E -- Briggs, W R -- New York, N.Y. -- Science. 1998 Nov 27;282(5394):1698-701.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Biology, Carnegie Institution of Washington, 260 Panama Street, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9831559" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arabidopsis/genetics/*physiology ; *Arabidopsis Proteins ; Cell Line ; Cryptochromes ; *Drosophila Proteins ; *Eye Proteins ; Flavin Mononucleotide/metabolism ; Flavoproteins/physiology ; Genes, Plant ; Light ; Mutation ; Phosphoproteins/genetics/*metabolism ; Phosphorylation ; *Photoreceptor Cells, Invertebrate ; *Phototropism ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; Receptors, G-Protein-Coupled ; Recombinant Proteins/metabolism ; Spectrometry, Fluorescence ; Spodoptera ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 78
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-06-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steel, K P -- Brown, S D -- New York, N.Y. -- Science. 1998 May 29;280(5368):1403.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council, Institute of Hearing Research, University Park, Nottingham NG7 2RD, UK. karen@ihr.mrc.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9634418" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/physiology ; Animals ; Cilia/physiology ; Deafness/*genetics ; Dyneins ; Extracellular Matrix Proteins/*genetics/physiology ; GPI-Linked Proteins ; Hair Cells, Auditory/physiology/ultrastructure ; Hearing ; Humans ; Membrane Glycoproteins/*genetics/physiology ; Mice ; Mice, Mutant Strains ; Mutation ; Myosin Heavy Chains/genetics/physiology ; Myosins/*genetics/physiology ; Tectorial Membrane/physiology
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  • 79
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-10-09
    Description: Differential access to cocaine self-administration produced two patterns of drug intake in rats. With 1 hour of access per session, drug intake remained low and stable. In contrast, with 6 hours of access, drug intake gradually escalated over days. After escalation, drug consumption was characterized by an increased early drug loading and an upward shift in the cocaine dose-response function, suggesting an increase in hedonic set point. After 1 month of abstinence, escalation of cocaine intake was reinstated to a higher level than before. These findings may provide an animal model for studying the development of excessive drug intake and the basis of addiction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ahmed, S H -- Koob, G F -- DA04398/DA/NIDA NIH HHS/ -- DA08467/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1998 Oct 9;282(5387):298-300.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Psychopharmacology, Department of Neuropharmacology, CVN-7, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. aserge@sage.scripps.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9765157" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Addictive ; Cocaine/*administration & dosage ; Cocaine-Related Disorders/*etiology ; Dose-Response Relationship, Drug ; Drug Tolerance ; Male ; Rats ; Rats, Wistar ; Reinforcement (Psychology) ; Time Factors
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  • 80
    Publication Date: 1998-10-23
    Description: Analysis of the 1,042,519-base pair Chlamydia trachomatis genome revealed unexpected features related to the complex biology of chlamydiae. Although chlamydiae lack many biosynthetic capabilities, they retain functions for performing key steps and interconversions of metabolites obtained from their mammalian host cells. Numerous potential virulence-associated proteins also were characterized. Several eukaryotic chromatin-associated domain proteins were identified, suggesting a eukaryotic-like mechanism for chlamydial nucleoid condensation and decondensation. The phylogenetic mosaic of chlamydial genes, including a large number of genes with phylogenetic origins from eukaryotes, implies a complex evolution for adaptation to obligate intracellular parasitism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stephens, R S -- Kalman, S -- Lammel, C -- Fan, J -- Marathe, R -- Aravind, L -- Mitchell, W -- Olinger, L -- Tatusov, R L -- Zhao, Q -- Koonin, E V -- Davis, R W -- AI 39258/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1998 Oct 23;282(5389):754-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Infectious Diseases, University of California, Berkeley, CA 94720, USA. ctgenome@socrates.berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9784136" target="_blank"〉PubMed〈/a〉
    Keywords: Aerobiosis ; Amino Acid Sequence ; Amino Acids/biosynthesis ; Bacterial Outer Membrane Proteins/genetics ; Bacterial Proteins/chemistry/genetics ; Biological Evolution ; Chlamydia trachomatis/classification/*genetics/metabolism/physiology ; DNA Repair ; Energy Metabolism ; Enzymes/chemistry/genetics ; *Genome, Bacterial ; Humans ; Lipids/biosynthesis ; Molecular Sequence Data ; Peptidoglycan/biosynthesis/genetics ; Phylogeny ; Protein Biosynthesis ; Recombination, Genetic ; *Sequence Analysis, DNA ; Transcription, Genetic ; Transformation, Bacterial ; Virulence
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  • 81
    Publication Date: 1998-05-09
    Description: Hormones and neurotransmitters may mediate common responses through receptors that couple to the same class of heterotrimeric guanine nucleotide-binding (G) protein. For example, several receptors that couple to Gq class proteins can induce cardiomyocyte hypertrophy. Class-specific inhibition of Gq-mediated signaling was produced in the hearts of transgenic mice by targeted expression of a carboxyl-terminal peptide of the alpha subunit Galphaq. When pressure overload was surgically induced, the transgenic mice developed significantly less ventricular hypertrophy than control animals. The data demonstrate the role of myocardial Gq in the initiation of myocardial hypertrophy and indicate a possible strategy for preventing pathophysiological signaling by simultaneously blocking multiple receptors coupled to Gq.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Akhter, S A -- Luttrell, L M -- Rockman, H A -- Iaccarino, G -- Lefkowitz, R J -- Koch, W J -- HL-03041/HL/NHLBI NIH HHS/ -- HL-09436/HL/NHLBI NIH HHS/ -- HL-16037/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1998 Apr 24;280(5363):574-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9554846" target="_blank"〉PubMed〈/a〉
    Keywords: Angiotensin II/pharmacology ; Animals ; Atrial Natriuretic Factor/genetics ; COS Cells ; Diglycerides/metabolism ; Enzyme Activation ; GTP-Binding Proteins/antagonists & inhibitors/genetics/*metabolism ; Gene Expression Regulation ; Gene Targeting ; Hypertrophy, Left Ventricular/*metabolism/prevention & control ; Inositol Phosphates/metabolism ; Mice ; Mice, Transgenic ; Mitogen-Activated Protein Kinase 1/metabolism ; Myocardium/*metabolism ; Peptide Fragments/genetics/metabolism ; Phenylephrine/pharmacology ; Receptors, Adrenergic, alpha/*metabolism ; Signal Transduction ; Transfection ; Transgenes ; Ventricular Pressure
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  • 82
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-07-10
    Description: Recombinant proteins containing four cysteines at the i, i + 1, i + 4, and i + 5 positions of an alpha helix were fluorescently labeled in living cells by extracellular administration of 4',5'-bis(1,3, 2-dithioarsolan-2-yl)fluorescein. This designed small ligand is membrane-permeant and nonfluorescent until it binds with high affinity and specificity to the tetracysteine domain. Such in situ labeling adds much less mass than does green fluorescent protein and offers greater versatility in attachment sites as well as potential spectroscopic and chemical properties. This system provides a recipe for slightly modifying a target protein so that it can be singled out from the many other proteins inside live cells and fluorescently stained by small nonfluorescent dye molecules added from outside the cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Griffin, B A -- Adams, S R -- Tsien, R Y -- NS27177/NS/NINDS NIH HHS/ -- T32 CA09523/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Jul 10;281(5374):269-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA 92093-0647, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9657724" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Calmodulin/chemistry/genetics/metabolism ; Cell Membrane Permeability ; Cell Survival ; Cysteine/*chemistry ; Energy Transfer ; Ethylene Glycol ; Fluoresceins/chemical synthesis/chemistry/*metabolism ; Fluorescence ; *Fluorescent Dyes ; Green Fluorescent Proteins ; HeLa Cells ; Humans ; Jurkat Cells ; Ligands ; Luminescent Proteins/chemistry/genetics/metabolism ; Molecular Sequence Data ; Organometallic Compounds/chemical synthesis/chemistry/*metabolism ; Peptides/chemistry/*metabolism ; Protein Structure, Secondary ; Recombinant Proteins/chemistry/*metabolism ; Spectrometry, Fluorescence ; Transfection
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  • 83
    Publication Date: 1998-01-24
    Description: Gene expression was visualized in single living mammalian cells with beta-lactamase as a reporter that hydrolyzes a substrate loaded intracellularly as a membrane-permeant ester. Each enzyme molecule changed the fluorescence of many substrate molecules from green to blue by disrupting resonance energy transfer. This wavelength shift was detectable by eye or color film in individual cells containing less than 100 beta-lactamase molecules. The robust change in emission ratio reveals quantitative heterogeneity in real-time gene expression, enables clonal selection by flow cytometry, and forms a basis for high-throughput screening of pharmaceutical candidate drugs in living mammalian cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zlokarnik, G -- Negulescu, P A -- Knapp, T E -- Mere, L -- Burres, N -- Feng, L -- Whitney, M -- Roemer, K -- Tsien, R Y -- NS27177/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1998 Jan 2;279(5347):84-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Aurora Biosciences, 11010 Torreyana Road, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9417030" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Separation/methods ; Clone Cells/*metabolism ; DNA-Binding Proteins/genetics/metabolism ; Drug Evaluation, Preclinical ; Energy Transfer ; Flow Cytometry ; Fluoresceins/metabolism ; Fluorescent Dyes/metabolism ; *Gene Expression ; *Genes, Reporter ; Half-Life ; Humans ; *Lactams ; Muscarinic Agonists/pharmacology ; Muscarinic Antagonists/pharmacology ; NFATC Transcription Factors ; *Nuclear Proteins ; Sensitivity and Specificity ; Spectrometry, Fluorescence ; Transcription Factors/genetics/metabolism ; *Transcription, Genetic ; Transfection ; Tumor Cells, Cultured ; Umbelliferones/metabolism ; beta-Lactamases/*genetics/metabolism ; beta-Lactams/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 84
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-03-21
    Description: The three-dimensional structure of a 70-kilodalton amino terminally truncated form of human topoisomerase I in complex with a 22-base pair duplex oligonucleotide, determined to a resolution of 2.8 angstroms, reveals all of the structural elements of the enzyme that contact DNA. The linker region that connects the central core of the enzyme to the carboxyl-terminal domain assumes a coiled-coil configuration and protrudes away from the remainder of the enzyme. The positively charged DNA-proximal surface of the linker makes only a few contacts with the DNA downstream of the cleavage site. In combination with the crystal structures of the reconstituted human topoisomerase I before and after DNA cleavage, this information suggests which amino acid residues are involved in catalyzing phosphodiester bond breakage and religation. The structures also lead to the proposal that the topoisomerization step occurs by a mechanism termed "controlled rotation."〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stewart, L -- Redinbo, M R -- Qiu, X -- Hol, W G -- Champoux, J J -- CA65656/CA/NCI NIH HHS/ -- GM16713/GM/NIGMS NIH HHS/ -- GM49156/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Mar 6;279(5356):1534-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biomolecular Structure Center and Department of Biological Structure, School of Medicine, University of Washington, Seattle, WA 98195-7742, USA. emerald_biostructures@rocketmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9488652" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arginine/chemistry/metabolism ; Binding Sites ; Catalysis ; Crystallography, X-Ray ; DNA/chemistry/*metabolism ; DNA Topoisomerases, Type I/*chemistry/*metabolism ; Humans ; Hydrogen Bonding ; *Models, Chemical ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Oligodeoxyribonucleotides/chemistry/metabolism ; *Protein Conformation ; Protein Structure, Secondary ; Tyrosine/chemistry/metabolism
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  • 85
    Publication Date: 1998-11-13
    Description: Self tolerance is acquired by the developing immune system. As reported here, particular properties of the neonatal tissue contribute to this process. Neonatal skin, but not adult skin, was accessible for naive CD8 T cells. In mouse bone marrow chimeras generated at different ages, recent thymic emigrants were tolerized to a skin-expressed major histocompatibility complex class I antigen only during a neonatal period but not during adulthood. Blockade of T cell migration neonatally prevented tolerance induction. Thus, T cell trafficking through nonlymphoid tissues in the neonate is crucial for the establishment of self tolerance to sessile, skin-expressed antigens.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alferink, J -- Tafuri, A -- Vestweber, D -- Hallmann, R -- Hammerling, G J -- Arnold, B -- New York, N.Y. -- Science. 1998 Nov 13;282(5392):1338-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Tumor Immunology Program, German Cancer Research Center, 69120 Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9812902" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Antigen Presentation ; Bone Marrow Transplantation ; CD8-Positive T-Lymphocytes/*immunology ; Cell Movement ; Graft Rejection ; H-2 Antigens/*immunology ; Keratinocytes/immunology ; Mice ; Mice, Transgenic ; Neoplasm Transplantation ; Neoplasms, Experimental/immunology ; Self Tolerance/*immunology ; Skin/*immunology ; Skin Transplantation ; T-Lymphocytes/*immunology ; Thymus Gland/immunology ; Transplantation Chimera
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 86
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-11-13
    Description: Human reovirus requires an activated Ras signaling pathway for infection of cultured cells. To investigate whether this property can be exploited for cancer therapy, severe combined immune deficient mice bearing tumors established from v-erbB-transformed murine NIH 3T3 cells or human U87 glioblastoma cells were treated with the virus. A single intratumoral injection of virus resulted in regression of tumors in 65 to 80 percent of the mice. Treatment of immune-competent C3H mice bearing tumors established from ras-transformed C3H-10T1/2 cells also resulted in tumor regression, although a series of injections were required. These results suggest that, with further work, reovirus may have applicability in the treatment of cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coffey, M C -- Strong, J E -- Forsyth, P A -- Lee, P W -- New York, N.Y. -- Science. 1998 Nov 13;282(5392):1332-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Biology Research Group and Department of Microbiology and Infectious Diseases, University of Calgary Health Science Centre, Calgary, Alberta, T2N 4N1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9812900" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Antibodies, Viral/immunology ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Cell Line, Transformed ; Genes, erbB ; *Genes, ras ; Humans ; Male ; Mammalian orthoreovirus 3/immunology/*physiology ; Mice ; Mice, Inbred C3H ; Mice, SCID ; Neoplasm Transplantation ; Neoplasms, Experimental/metabolism/pathology/*therapy/virology ; Signal Transduction ; Tumor Cells, Cultured ; Virus Replication ; ras Proteins/*metabolism
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  • 87
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-03-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Mar 6;279(5356):1456.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9508720" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow Cells/cytology/*physiology ; Bone Marrow Transplantation ; Cell Differentiation ; Humans ; Mice ; Mice, Transgenic ; Muscle, Skeletal/cytology/pathology/*physiology ; Muscular Dystrophies/pathology/*therapy ; Muscular Dystrophy, Animal/pathology/therapy ; *Regeneration ; Stem Cells/*physiology ; Stromal Cells/physiology
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  • 88
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-02-07
    Description: In vivo selection of phage display libraries was used to isolate peptides that home specifically to tumor blood vessels. When coupled to the anticancer drug doxorubicin, two of these peptides-one containing an alphav integrin-binding Arg-Gly-Asp motif and the other an Asn-Gly-Arg motif-enhanced the efficacy of the drug against human breast cancer xenografts in nude mice and also reduced its toxicity. These results indicate that it may be possible to develop targeted chemotherapy strategies that are based on selective expression of receptors in tumor vasculature.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arap, W -- Pasqualini, R -- Ruoslahti, E -- CA30199/CA/NCI NIH HHS/ -- CA62042/CA/NCI NIH HHS/ -- CA74238-01/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Jan 16;279(5349):377-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Research Center, The Burnham Institute, 10901 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/9430587" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/metabolism ; Antineoplastic Agents/*administration & dosage/therapeutic use/toxicity ; Bacteriophages ; Coronary Vessels/drug effects ; Doxorubicin/*administration & dosage/*analogs & ; derivatives/metabolism/therapeutic use/toxicity ; *Drug Carriers ; Heart/drug effects ; Humans ; Integrin alphaV ; Integrins/metabolism ; Liver/blood supply/drug effects ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Neoplasms, Experimental/*blood supply/*drug therapy/pathology ; Oligopeptides/*administration & dosage/metabolism/therapeutic use/toxicity ; Peptide Library ; Random Allocation ; Transplantation, Heterologous ; Tumor Cells, Cultured
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  • 89
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-03-21
    Description: Mossy fiber synaptic transmission at hippocampal CA3 pyramidal cells and interneurons was compared in rat brain slices to determine whether mossy terminals are functionally equivalent. Tetanic stimulation of mossy fibers induced long-term potentiation in pyramidal neurons but was either without effect or it induced depression at synapses onto interneurons. Unlike transmission onto pyramidal neurons, transmission onto interneurons was not potentiated after adenosine 3',5'-monophosphate (cAMP) activation. Furthermore, metabotropic glutamate receptor depression of transmission onto interneurons did not involve cAMP-dependent pathways. Thus, synaptic terminals arising from a common afferent pathway do not function as a single compartment but are specialized, depending on their postsynaptic target.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maccaferri, G -- Toth, K -- McBain, C J -- New York, N.Y. -- Science. 1998 Feb 27;279(5355):1368-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cellular and Molecular Neurophysiology, Room 5A72, Building 49, National Institute of Child Health and Human Development, 9000 Rockville Pike, Bethesda MD 20892-4495, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9478900" target="_blank"〉PubMed〈/a〉
    Keywords: Afferent Pathways ; Animals ; Colforsin/pharmacology ; Cyclic AMP/metabolism ; Cycloleucine/analogs & derivatives/pharmacology ; Cyclopropanes/pharmacology ; Electric Stimulation ; Excitatory Postsynaptic Potentials/drug effects ; Glycine/analogs & derivatives/pharmacology ; Hippocampus/cytology/*physiology ; In Vitro Techniques ; Interneurons/drug effects/*physiology ; *Long-Term Potentiation ; Mossy Fibers, Hippocampal/*physiology ; Pyramidal Cells/drug effects/*physiology ; Rats ; Rats, Sprague-Dawley ; Receptors, Metabotropic Glutamate/agonists/physiology ; Synaptic Transmission/drug effects
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  • 90
    Publication Date: 1998-11-13
    Description: The ectodomains of numerous proteins are released from cells by proteolysis to yield soluble intercellular regulators. The responsible protease, tumor necrosis factor-alpha converting enzyme (TACE), has been identified only in the case when tumor necrosis factor-alpha (TNFalpha) is released. Analyses of cells lacking this metalloproteinase-disintegrin revealed an expanded role for TACE in the processing of other cell surface proteins, including a TNF receptor, the L-selectin adhesion molecule, and transforming growth factor-alpha (TGFalpha). The phenotype of mice lacking TACE suggests an essential role for soluble TGFalpha in normal development and emphasizes the importance of protein ectodomain shedding in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peschon, J J -- Slack, J L -- Reddy, P -- Stocking, K L -- Sunnarborg, S W -- Lee, D C -- Russell, W E -- Castner, B J -- Johnson, R S -- Fitzner, J N -- Boyce, R W -- Nelson, N -- Kozlosky, C J -- Wolfson, M F -- Rauch, C T -- Cerretti, D P -- Paxton, R J -- March, C J -- Black, R A -- CA43793/CA/NCI NIH HHS/ -- DK53804/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1998 Nov 13;282(5392):1281-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Immunex Corporation, Seattle, WA 98101, USA. peschon@immunex.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9812885" target="_blank"〉PubMed〈/a〉
    Keywords: ADAM Proteins ; Amino Acid Sequence ; Animals ; Catalytic Domain ; Cell Membrane/*metabolism ; Cells, Cultured ; Crosses, Genetic ; *Embryonic and Fetal Development ; L-Selectin/metabolism ; Ligands ; Membrane Proteins/*metabolism ; Metalloendopeptidases/chemistry/genetics/*metabolism ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Mutation ; Phenotype ; Protein Processing, Post-Translational ; Receptors, Tumor Necrosis Factor/metabolism ; Transforming Growth Factor alpha/metabolism ; Tumor Necrosis Factor-alpha/*metabolism
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  • 91
    Publication Date: 1998-03-21
    Description: Long-term potentiation (LTP) is an activity-dependent strengthening of synaptic efficacy that is considered to be a model of learning and memory. Protein tyrosine phosphorylation is necessary to induce LTP. Here, induction of LTP in CA1 pyramidal cells of rats was prevented by blocking the tyrosine kinase Src, and Src activity was increased by stimulation producing LTP. Directly activating Src in the postsynaptic neuron enhanced excitatory synaptic responses, occluding LTP. Src-induced enhancement of alpha-amino-3-hydroxy-5-methylisoxazolepropionic acid (AMPA) receptor-mediated synaptic responses required raised intracellular Ca2+ and N-methyl-D-aspartate (NMDA) receptors. Thus, Src activation is necessary and sufficient for inducing LTP and may function by up-regulating NMDA receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lu, Y M -- Roder, J C -- Davidow, J -- Salter, M W -- New York, N.Y. -- Science. 1998 Feb 27;279(5355):1363-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Samuel Lunenfeld Research Institute, Mount Sinai Hospital, and Department of Molecular and Medical Genetics, University of Toronto, M5S 1A8, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9478899" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Calcium/metabolism ; Electric Stimulation ; Enzyme Activation ; Excitatory Postsynaptic Potentials/drug effects ; Hippocampus/cytology/enzymology/*physiology ; In Vitro Techniques ; *Long-Term Potentiation ; Molecular Sequence Data ; Oligopeptides/pharmacology ; Patch-Clamp Techniques ; Peptide Fragments/pharmacology ; Proto-Oncogene Proteins pp60(c-src)/pharmacology ; Pyramidal Cells/enzymology/*physiology ; Rats ; Rats, Sprague-Dawley ; Receptors, AMPA/physiology ; Receptors, N-Methyl-D-Aspartate/physiology ; Recombinant Proteins/pharmacology ; Up-Regulation ; src-Family Kinases/*metabolism
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  • 92
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-03-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Feb 13;279(5353):978-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9490484" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Crystallography, X-Ray ; Databases, Factual ; *Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Proteins/*chemistry/classification/genetics ; Software
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  • 93
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-05-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Service, R F -- New York, N.Y. -- Science. 1999 Apr 23;284(5414):578-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10328734" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Electric Stimulation ; Electrodes ; Electrodes, Implanted ; *Electronics ; Electrophysiology ; Humans ; Nerve Net/*physiology ; Nervous System Diseases/*therapy ; Neurons/*physiology ; Rats ; Silicon ; *Transistors, Electronic
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  • 94
    Publication Date: 1998-10-17
    Description: The angiopoietins and members of the vascular endothelial growth factor (VEGF) family are the only growth factors thought to be largely specific for vascular endothelial cells. Targeted gene inactivation studies in mice have shown that VEGF is necessary for the early stages of vascular development and that angiopoietin-1 is required for the later stages of vascular remodeling. Here it is shown that transgenic overexpression of angiopoietin-1 in the skin of mice produces larger, more numerous, and more highly branched vessels. These results raise the possibility that angiopoietins can be used, alone or in combination with VEGF, to promote therapeutic angiogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Suri, C -- McClain, J -- Thurston, G -- McDonald, D M -- Zhou, H -- Oldmixon, E H -- Sato, T N -- Yancopoulos, G D -- HL-24136/HL/NHLBI NIH HHS/ -- HL-59157/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1998 Oct 16;282(5388):468-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9774272" target="_blank"〉PubMed〈/a〉
    Keywords: Angiopoietin-1 ; Animals ; Capillaries/anatomy & histology/ultrastructure ; Endothelial Growth Factors/genetics/physiology ; Endothelium, Vascular/ultrastructure ; Gene Expression ; Keratinocytes/metabolism ; Lymphokines/genetics/physiology ; Membrane Glycoproteins/genetics/*physiology ; Mice ; Mice, Transgenic ; *Neovascularization, Physiologic ; Skin/*blood supply/metabolism ; Transgenes ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors ; Venules/anatomy & histology/ultrastructure
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  • 95
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-04-16
    Description: Genetic selection was exploited in combination with structure-based design to transform an intimately entwined, dimeric chorismate mutase into a monomeric, four-helix-bundle protein with near native activity. Successful reengineering depended on choosing a thermostable starting protein, introducing point mutations that preferentially destabilize the wild-type dimer, and using directed evolution to optimize an inserted interhelical turn. Contrary to expectations based on studies of other four-helix-bundle proteins, only a small fraction of possible turn sequences (fewer than 0.05 percent) yielded well-behaved, monomeric, and highly active enzymes. Selection for catalytic function thus provides an efficient yet stringent method for rapidly assessing correctly folded polypeptides and may prove generally useful for protein design.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉MacBeath, G -- Kast, P -- Hilvert, D -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1958-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Scripps Research Institute, Department of Chemistry, 10550 North Torrey Pines Road, La Jolla, California, 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9506949" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Catalysis ; Chorismate Mutase/*chemistry/genetics/*metabolism ; Circular Dichroism ; Cloning, Molecular ; Dimerization ; *Directed Molecular Evolution ; Escherichia coli/genetics ; Models, Molecular ; Molecular Sequence Data ; *Protein Conformation ; *Protein Engineering ; Protein Folding ; Protein Structure, Secondary ; Recombinant Proteins/chemistry/metabolism ; Transformation, Bacterial
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  • 96
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1998-07-31
    Description: Gamete interactions during fertilization exhibit species specificity. In abalone, the sperm protein lysin species-specifically creates a hole in the egg envelope. Lysin evolves rapidly by positive Darwinian selection. Evolution of the egg receptor for lysin provides the selective pressure for lysin's divergence. The egg receptor for lysin is a tandemly repeated sequence that evolves by concerted evolution. Concerted evolution in the egg receptor could explain the rapid, adaptive evolution in sperm lysin and may provide an underlying molecular mechanism that gives rise to species-specific fertilization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Swanson, W J -- Vacquier, V D -- HD12986/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1998 Jul 31;281(5377):710-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California at San Diego, La Jolla, CA 92093-0202, USA. jwswanson@ucsd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9685267" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Egg Proteins/chemistry/*genetics/metabolism ; *Evolution, Molecular ; Female ; Introns ; Male ; Molecular Sequence Data ; Mollusca/chemistry/*genetics/physiology ; Mucoproteins/chemistry/genetics/*metabolism ; Ovum/chemistry/physiology ; Receptors, Cell Surface/chemistry/*genetics/metabolism ; Repetitive Sequences, Nucleic Acid ; Selection, Genetic ; Sequence Alignment ; Species Specificity ; Sperm-Ovum Interactions ; Spermatozoa/chemistry/physiology ; Vitelline Membrane/*chemistry/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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  • 97
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-04-09
    Description: A "switch" mutant of the Arc repressor homodimer was constructed by interchanging the sequence positions of a hydrophobic core residue, leucine 12, and an adjacent surface polar residue, asparagine 11, in each strand of an intersubunit beta sheet. The mutant protein adopts a fold in which each beta strand is replaced by a right-handed helix and side chains in this region undergo significant repacking. The observed structural changes allow the protein to maintain solvent exposure of polar side chains and optimal burial of hydrophobic side chains. These results suggest that new protein folds can evolve from existing folds without drastic or large-scale mutagenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cordes, M H -- Walsh, N P -- McKnight, C J -- Sauer, R T -- AI-15706/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1999 Apr 9;284(5412):325-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, 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/10195898" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Asparagine/chemistry ; Circular Dichroism ; Hydrogen Bonding ; Leucine/chemistry ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis, Insertional ; Nuclear Magnetic Resonance, Biomolecular ; Protein Conformation ; *Protein Folding ; *Protein Structure, Secondary ; Protein Structure, Tertiary ; Repressor Proteins/*chemistry ; Viral Proteins/*chemistry ; Viral Regulatory and Accessory Proteins
    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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  • 98
    Publication Date: 1999-10-09
    Description: The Yersinia pseudotuberculosis invasin protein promotes bacterial entry by binding to host cell integrins with higher affinity than natural substrates such as fibronectin. The 2.3 angstrom crystal structure of the invasin extracellular region reveals five domains that form a 180 angstrom rod with structural similarities to tandem fibronectin type III domains. The integrin-binding surfaces of invasin and fibronectin include similarly located key residues, but in the context of different folds and surface shapes. The structures of invasin and fibronectin provide an example of convergent evolution, in which invasin presents an optimized surface for integrin binding, in comparison with host substrates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hamburger, Z A -- Brown, M S -- Isberg, R R -- Bjorkman, P J -- New York, N.Y. -- Science. 1999 Oct 8;286(5438):291-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology 156-29, Howard Hughes Medical Institute, California Institute of Technology, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10514372" target="_blank"〉PubMed〈/a〉
    Keywords: *Adhesins, Bacterial ; Amino Acid Sequence ; Bacterial Proteins/*chemistry/metabolism ; Binding Sites ; Crystallography, X-Ray ; Evolution, Molecular ; Fibronectins/chemistry/metabolism ; Hydrogen Bonding ; Integrins/*metabolism ; Ligands ; Models, Molecular ; Protein Binding ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Yersinia pseudotuberculosis/*chemistry/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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  • 99
    Publication Date: 1999-09-25
    Description: The flow of information from calcium-mobilizing receptors to nuclear factor of activated T cells (NFAT)-dependent genes is critically dependent on interaction between the phosphatase calcineurin and the transcription factor NFAT. A high-affinity calcineurin-binding peptide was selected from combinatorial peptide libraries based on the calcineurin docking motif of NFAT. This peptide potently inhibited NFAT activation and NFAT-dependent expression of endogenous cytokine genes in T cells, without affecting the expression of other cytokines that require calcineurin but not NFAT. Substitution of the optimized peptide sequence into the natural calcineurin docking site increased the calcineurin responsiveness of NFAT. Compounds that interfere selectively with the calcineurin-NFAT interaction without affecting calcineurin phosphatase activity may be useful as therapeutic agents that are less toxic than current drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aramburu, J -- Yaffe, M B -- Lopez-Rodriguez, C -- Cantley, L C -- Hogan, P G -- Rao, A -- R01 AI 40127/AI/NIAID NIH HHS/ -- R01 GM056203/GM/NIGMS NIH HHS/ -- R01 HL 03601/HL/NHLBI NIH HHS/ -- R43 AI 43726/AI/NIAID NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1999 Sep 24;285(5436):2129-33.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10497131" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Calcineurin/*metabolism ; Calcineurin Inhibitors ; Cell Nucleus/metabolism ; Cyclosporine/pharmacology ; Cytokines/biosynthesis/genetics ; DNA-Binding Proteins/*antagonists & inhibitors/chemistry/metabolism ; Gene Expression Regulation ; Genes, Reporter ; HeLa Cells ; Humans ; Immunosuppressive Agents/chemistry/metabolism/*pharmacology ; Jurkat Cells ; Molecular Sequence Data ; NFATC Transcription Factors ; *Nuclear Proteins ; Oligopeptides/chemistry/metabolism/*pharmacology ; Peptide Library ; Peptides/chemistry/metabolism/*pharmacology ; Phosphorylation ; Recombinant Fusion Proteins/metabolism ; T-Lymphocytes/*drug effects/immunology ; Transcription Factors/*antagonists & inhibitors/chemistry/metabolism ; Transfection
    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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  • 100
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-01-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawler, C -- Erbisch, F -- New York, N.Y. -- Science. 1999 Jan 1;283(5398):33-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9917260" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biotechnology ; Mice ; Mice, Transgenic ; *Patents as Topic ; Plants, Genetically Modified/*genetics ; 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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