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  • Humans  (564)
  • Molecular Sequence Data  (248)
  • GEOPHYSICS
  • General Chemistry
  • American Association for the Advancement of Science (AAAS)  (719)
  • 1995-1999  (719)
  • 1950-1954
  • 1996  (719)
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  • American Association for the Advancement of Science (AAAS)  (719)
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  • 1995-1999  (719)
  • 1950-1954
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  • 1
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    Persistent site-specific remodeling of a nucleosome array by transient action of the SWI/SNF complex (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1996-07-26
    Beschreibung: The SWI/SNF complex participates in the restructuring of chromatin for transcription. The function of the yeast SWI/SNF complex in the remodeling of a nucleosome array has now been analyzed in vitro. Binding of the purified SWI/SNF complex to a nucleosome array disrupted multiple nucleosomes in an adenosine triphosphate-dependent reaction. However, removal of SWI/SNF left a deoxyribonuclease I-hypersensitive site specifically at a nucleosome that was bound by derivatives of the transcription factor Gal4p. Analysis of individual nucleosomes revealed that the SWI/SNF complex catalyzed eviction of histones from the Gal4-bound nucleosomes. Thus, the transient action of the SWI/SNF complex facilitated irreversible disruption of transcription factor-bound nucleosomes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Owen-Hughes, T -- Utley, R T -- Cote, J -- Peterson, C L -- Workman, J L -- GM47867/GM/NIGMS NIH HHS/ -- R01 GM049650/GM/NIGMS NIH HHS/ -- R37 GM049650/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1996 Jul 26;273(5274):513-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology and Center for Gene Regulation, Pennsylvania State University, University Park, PA 16802-4500, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8662543" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenosine Triphosphatases ; Adenosine Triphosphate/metabolism ; Base Sequence ; Binding Sites ; DNA, Fungal/metabolism ; DNA-Binding Proteins/*metabolism ; Deoxyribonuclease I/metabolism ; Fungal Proteins/*metabolism ; Histones/metabolism ; Molecular Sequence Data ; *Nuclear Proteins ; Nucleosomes/*metabolism/ultrastructure ; Saccharomyces cerevisiae ; *Saccharomyces cerevisiae Proteins ; Transcription Factors/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    Contraceptive technology. Panel wants to break R&D barrier (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1996-05-31
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Service, R F -- New York, N.Y. -- Science. 1996 May 31;272(5266):1258.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8650534" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Contraceptive Agents/economics ; *Drug Industry/economics/legislation & jurisprudence ; Female ; Humans ; Institute of Medicine (U.S.) ; Insurance, Health ; Liability, Legal ; Male ; *Research/economics ; Research Support as Topic ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    CRNF, a molluscan neurotrophic factor that interacts with the p75 neurotrophin receptor (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1996-11-29
    Beschreibung: A 13.1-kilodalton protein, cysteine-rich neurotrophic factor (CRNF), was purified from the mollusk Lymnaea stagnalis by use of a binding assay on the p75 neurotrophin receptor. CRNF bound to p75 with nanomolar affinity but was not similar in sequence to neurotrophins or any other known gene product. CRNF messenger RNA expression was highest in adult foot subepithelial cells; in the central nervous system, expression was regulated by lesion. The factor evoked neurite outgrowth and modulated calcium currents in pedal motor neurons. Thus, CRNF may be involved in target-derived trophic support for motor neurons and could represent the prototype of another family of p75 ligands.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fainzilber, M -- Smit, A B -- Syed, N I -- Wildering, W C -- Hermann -- van der Schors, R C -- Jimenez, C -- Li, K W -- van Minnen, J -- Bulloch, A G -- Ibanez, C F -- Geraerts, W P -- New York, N.Y. -- Science. 1996 Nov 29;274(5292):1540-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Neurobiology, Department of Neuroscience, Karolinska Institute, Berzelius Laboratories Building, Doktorsringen 12A, S-17177 Stockholm, Sweden. michael@cajal.mbb.ki.se〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8929417" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Binding, Competitive ; Calcium/metabolism ; Hemolymph/chemistry ; Humans ; Lymnaea/*chemistry ; Molecular Sequence Data ; Motor Neurons/ultrastructure ; Nerve Growth Factors/chemistry/genetics/isolation & ; purification/metabolism/*physiology ; Neurites/physiology ; RNA, Messenger/genetics/metabolism ; Receptor, Nerve Growth Factor ; Receptors, Nerve Growth Factor/*metabolism ; Recombinant Proteins/chemistry/isolation & purification/metabolism ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
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    Estimating the age of the common ancestor of men from the ZFY intron (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1996-05-31
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fu, Y X -- Li, W H -- New York, N.Y. -- Science. 1996 May 31;272(5266):1356-7; author reply 1361-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8650550" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Bayes Theorem ; Biological Evolution ; Confidence Intervals ; DNA-Binding Proteins/*genetics ; *Genetics, Population ; Hominidae/*genetics ; Humans ; Introns/*genetics ; Kruppel-Like Transcription Factors ; Male ; Mutation ; Population Density ; Probability ; Time Factors ; Transcription Factors/*genetics ; Y Chromosome/*genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
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    Structure of staphylococcal alpha-hemolysin, a heptameric transmembrane pore (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1996-12-13
    Beschreibung: The structure of the Staphylococcus aureus alpha-hemolysin pore has been determined to 1.9 A resolution. Contained within the mushroom-shaped homo-oligomeric heptamer is a solvent-filled channel, 100 A in length, that runs along the sevenfold axis and ranges from 14 A to 46 A in diameter. The lytic, transmembrane domain comprises the lower half of a 14-strand antiparallel beta barrel, to which each protomer contributes two beta strands, each 65 A long. The interior of the beta barrel is primarily hydrophilic, and the exterior has a hydrophobic belt 28 A wide. The structure proves the heptameric subunit stoichiometry of the alpha-hemolysin oligomer, shows that a glycine-rich and solvent-exposed region of a water-soluble protein can self-assemble to form a transmembrane pore of defined structure, and provides insight into the principles of membrane interaction and transport activity of beta barrel pore-forming toxins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Song, L -- Hobaugh, M R -- Shustak, C -- Cheley, S -- Bayley, H -- Gouaux, J E -- New York, N.Y. -- Science. 1996 Dec 13;274(5294):1859-66.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Chicago, 920 East 58 Street, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8943190" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Bacterial Toxins/*chemistry/metabolism ; Cell Membrane/chemistry/metabolism ; Crystallography, X-Ray ; Hemolysin Proteins/*chemistry/metabolism ; Hydrogen Bonding ; Lipid Bilayers/*chemistry ; Membrane Potentials ; Models, Molecular ; Molecular Sequence Data ; *Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Staphylococcus aureus/*chemistry
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
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    The secreted product of Xenopus gene lunatic Fringe, a vertebrate signaling molecule (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1996-07-19
    Beschreibung: Signaling molecules are essential for vertebrate embryonic development. Here, two Xenopus homologs of the Drosophila gene fringe, lunatic Fringe (lFng) and radical Fringe (rFng), were identified and the protein product of lFng further characterized. The messenger RNA of lFng is supplied as a maternal message. Its product is a precursor protein consisting of pre-, pro-, and mature regions. The mature lunatic Fringe protein is secreted extracellularly, and it induced mesodermal tissue formation in animal cap assays. These results indicate that secreted lunatic Fringe can induce mesoderm and reveal that the Fringe proteins are a family of vertebrate signaling molecules.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2080353/" 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/PMC2080353/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, J Y -- Wen, L -- Zhang, W J -- Rao, Y -- R01 CA114197/CA/NCI NIH HHS/ -- R01 CA114197-01A2/CA/NCI NIH HHS/ -- R01 EY014576/EY/NEI NIH HHS/ -- R01 EY014576-03/EY/NEI NIH HHS/ -- R01 GM070967/GM/NIGMS NIH HHS/ -- R01 GM070967-02/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1996 Jul 19;273(5273):355-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8662522" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Base Sequence ; Blastocyst/metabolism ; Cell Line ; Culture Media, Conditioned ; Culture Techniques ; Drosophila Proteins ; Embryo, Nonmammalian/metabolism ; Embryonic Development ; *Embryonic Induction ; *Glycosyltransferases ; Mesoderm/*metabolism ; Molecular Sequence Data ; *N-Acetylglucosaminyltransferases ; Polymerase Chain Reaction ; Protein Processing, Post-Translational ; Proteins/chemistry/genetics/*physiology/secretion ; RNA, Messenger/genetics/metabolism ; *Signal Transduction ; Xenopus/*embryology/genetics ; *Xenopus Proteins
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
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    DNA looping and lac repressor-CAP interaction (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1996-12-13
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perros, M -- Steitz, T A -- New York, N.Y. -- Science. 1996 Dec 13;274(5294):1929-30; author reply 1931-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8984647" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Base Sequence ; Crystallography, X-Ray ; Cyclic AMP Receptor Protein/*metabolism ; DNA, Bacterial/chemistry/*metabolism ; Escherichia coli/genetics ; *Lac Operon ; Molecular Sequence Data ; *Nucleic Acid Conformation ; Operator Regions, Genetic ; *Promoter Regions, Genetic ; Protein Binding ; Protein Conformation ; Repressor Proteins/chemistry/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 8
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    HIV-1 Langerhans' cell tropism associated with heterosexual transmission of HIV (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1996-03-01
    Beschreibung: Heterosexual transmission by vaginal intercourse accounts for most transmission of human immunodeficiency virus-type 1 (HIV-1) in Africa and Asia but is less important in the HIV-1 epidemics of the United States and Western Europe. Epithelial Langerhans' cells (LCs) represent a possible source of initial cell contact for vaginal infection. Fifteen primary isolates of HIV-1 from U.S. homosexuals and 18 HIV-1 isolates from Thailand heterosexuals were evaluated for growth in LCs of U.S. origin. All the viruses from the Thai heterosexuals, which were subtype E, grew more efficiently in the LCs than any of the viruses from the U.S. homosexuals, which are subtype B. These results suggest that LC tropism is associated with the efficiency of heterosexual transmission of HIV.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soto-Ramirez, L E -- Renjifo, B -- McLane, M F -- Marlink, R -- O'Hara, C -- Sutthent, R -- Wasi, C -- Vithayasai, P -- Vithayasai, V -- Apichartpiyakul, C -- Auewarakul, P -- Pena Cruz, V -- Chui, D S -- Osathanondh, R -- Mayer, K -- Lee, T H -- Essex, M -- 5 D43 TW0004/TW/FIC NIH HHS/ -- CA 39805/CA/NCI NIH HHS/ -- HL 33774/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1996 Mar 1;271(5253):1291-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Harvard AIDS Institute, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8638113" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cell Line ; Cells, Cultured ; HIV Core Protein p24/analysis ; HIV Infections/*transmission/virology ; HIV-1/classification/*growth & development/isolation & purification ; Homosexuality, Male ; Humans ; Langerhans Cells/*virology ; Macrophages/virology ; Male ; Monocytes/virology ; *Sexual Behavior ; Sexually Transmitted Diseases, Viral/*transmission/virology ; T-Lymphocytes/virology ; Thailand ; United States ; Virus Replication
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
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    Hippocampal cell death (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1996-05-31
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cahill, L -- Haigler, H J -- New York, N.Y. -- Science. 1996 May 31;272(5266):1251.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8650532" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetylcholine/*pharmacology ; *Aging ; Animals ; Cell Death ; Enkephalin, Methionine/*pharmacology ; Hippocampus/*cytology ; Humans ; Memory ; Pyramidal Cells/cytology/*drug effects/physiology ; Rats
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 10
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    RAC regulation of actin polymerization and proliferation by a pathway distinct from Jun kinase (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1996-11-22
    Beschreibung: The RAC guanine nucleotide binding proteins regulate multiple biological activities, including actin polymerization, activation of the Jun kinase (JNK) cascade, and cell proliferation. RAC effector loop mutants were identified that separate the ability of RAC to interact with different downstream effectors. One mutant of activated human RAC protein, RACV12H40 (with valine and histidine substituted at position 12 and 40, respectively), was defective in binding to PAK3, a Ste20-related p21-activated kinase (PAK), but bound to POR1, a RAC-binding protein. This mutant failed to stimulate PAK and JNK activity but still induced membrane ruffling and mediated transformation. A second mutant, RACV12L37 (with leucine substituted at position 37), which bound PAK but not POR1, induced JNK activation but was defective in inducing membrane ruffling and transformation. These results indicate that the effects of RAC on the JNK cascade and on actin polymerization and cell proliferation are mediated by distinct effector pathways that diverge at the level of RAC itself.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Joneson, T -- McDonough, M -- Bar-Sagi, D -- Van Aelst, L -- CA55360/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1996 Nov 22;274(5291):1374-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, State University of New York, Stony Brook, NY 11794, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8910277" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 3T3 Cells ; Actins/*metabolism ; *Adaptor Proteins, Signal Transducing ; Animals ; COS Cells ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Carrier Proteins/metabolism ; *Cell Division ; Cell Line ; Cell Line, Transformed ; Cell Membrane/ultrastructure ; Enzyme Activation ; GTP-Binding Proteins/genetics/metabolism/*physiology ; Humans ; JNK Mitogen-Activated Protein Kinases ; Mice ; *Mitogen-Activated Protein Kinases ; Mutagenesis ; Protein-Serine-Threonine Kinases/metabolism ; Rats ; Transfection ; p21-Activated Kinases ; rac GTP-Binding Proteins
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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