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  • Artikel  (3)
  • Mutation  (2)
  • *Gene Expression Regulation  (1)
  • 1990-1994  (3)
  • 1920-1924
  • Science. 258(5084): 1004-7.  (1)
  • Science. 261(5129): 1744-6.  (1)
  • Science. 264(5164): 1415-21.  (1)
  • 25
  • Informatik  (3)
  • Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
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  • Artikel  (3)
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  • 1
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    A surface protease and the invasive character of plague (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1992-11-06
    Beschreibung: A 9.5-kilobase plasmid of Yersinia pestis, the causative agent of plague, is required for high virulence when mice are inoculated with the bacterium by subcutaneous injection. Inactivation of the plasmid gene pla, which encodes a surface protease, increased the median lethal dose of the bacteria for mice by a millionfold. Moreover, cloned pla was sufficient to restore segregants lacking the entire pla-bearing plasmid to full virulence. Both pla+ strains injected subcutaneously and pla- mutants injected intravenously reached high titers in liver and spleen of infected mice, whereas pla- mutants injected subcutaneously failed to do so even though they establish a sustained local infection at the injection site. More inflammatory cells accumulated in lesions caused by the pla- mutants than in lesions produced by the pla+ parent. The Pla protease was shown to be a plasminogen activator with unusual kinetic properties. It can also cleave complement C3 at a specific site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sodeinde, O A -- Subrahmanyam, Y V -- Stark, K -- Quan, T -- Bao, Y -- Goguen, J D -- AI22176/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1992 Nov 6;258(5084):1004-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, University of Massachusetts Medical School, Worcester 01655.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439793" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; *Bacterial Proteins ; Colony Count, Microbial ; Escherichia coli/enzymology ; Fibrinolysin/chemistry/metabolism ; Injections, Intravenous ; Kinetics ; Liver/microbiology ; Mice ; Molecular Sequence Data ; Mutation ; Plague/microbiology ; Plasmids ; Plasminogen Activators/genetics/*physiology ; Recombinant Proteins/metabolism ; Spleen/microbiology ; Tissue Plasminogen Activator/metabolism ; Urokinase-Type Plasminogen Activator/metabolism ; Yersinia pestis/*enzymology/isolation & purification/*pathogenicity
    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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    Jak-STAT pathways and transcriptional activation in response to IFNs and other extracellular signaling proteins (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1994-06-03
    Beschreibung: Through the study of transcriptional activation in response to interferon alpha (IFN-alpha) and interferon gamma (IFN-gamma), a previously unrecognized direct signal transduction pathway to the nucleus has been uncovered: IFN-receptor interaction at the cell surface leads to the activation of kinases of the Jak family that then phosphorylate substrate proteins called STATs (signal transducers and activators of transcription). The phosphorylated STAT proteins move to the nucleus, bind specific DNA elements, and direct transcription. Recognition of the molecules involved in the IFN-alpha and IFN-gamma pathway has led to discoveries that a number of STAT family members exist and that other polypeptide ligands also use the Jak-STAT molecules in signal transduction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Darnell, J E Jr -- Kerr, I M -- Stark, G R -- New York, N.Y. -- Science. 1994 Jun 3;264(5164):1415-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Cell Biology, Rockefeller University, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8197455" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; DNA-Binding Proteins/*metabolism ; Genes ; Genetic Complementation Test ; Humans ; Interferon-Stimulated Gene Factor 3 ; Interferon-Stimulated Gene Factor 3, gamma Subunit ; Interferon-alpha/*pharmacology ; Interferon-gamma/*pharmacology ; Molecular Sequence Data ; Mutation ; Protein-Tyrosine Kinases/metabolism ; Regulatory Sequences, Nucleic Acid ; *Signal Transduction ; Transcription Factors/*metabolism ; *Transcriptional Activation
    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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    A single phosphotyrosine residue of Stat91 required for gene activation by interferon-gamma (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1993-09-24
    Beschreibung: Interferon-gamma (IFN-gamma) stimulates transcription of specific genes by inducing tyrosine phosphorylation of a 91-kilodalton cytoplasmic protein (termed STAT for signal transducer and activator of transcription). Stat91 was phosphorylated on a single site (Tyr701), and phosphorylation of this site was required for nuclear translocation, DNA binding, and gene activation. Stat84, a differentially spliced product of the same gene that lacks the 38 carboxyl-terminal amino acids of Stat91, did not activate transcription, although it was phosphorylated and translocated to the nucleus and bound DNA. Thus, Stat91 mediates activation of transcription in response to IFN-gamma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shuai, K -- Stark, G R -- Kerr, I M -- Darnell, J E Jr -- AI32489-02/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1993 Sep 24;261(5129):1744-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rockefeller University, Laboratory of Molecular Cell Biology, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7690989" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Cell Line ; Cell Nucleus/metabolism ; DNA-Binding Proteins/chemistry/*metabolism ; *Gene Expression Regulation ; Humans ; Interferon-gamma/*pharmacology ; Molecular Sequence Data ; Peptide Fragments/chemistry/metabolism ; Phosphotyrosine ; *Signal Transduction ; Transcription Factors/chemistry/*metabolism ; Transcriptional Activation ; Transfection ; Tyrosine/analogs & derivatives/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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    AKTUELLE ARTIKEL
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