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  • Wiley-Blackwell  (2)
  • 1985-1989
  • 1980-1984  (2)
  • 1984  (1)
  • 1981  (1)
Collection
Publisher
Years
  • 1985-1989
  • 1980-1984  (2)
Year
  • 1
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 121 (1984), S. 357-367 
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The plasma membrane of 3T3 cells contains at least two different endogenous cyclic AMP-dependent protein kinase systems. One catalyzes the phosphorylation of endogenous protein substrates, i.e., PP24 and PP14, whereas the other catalyzes the phosphorylation of exogenous substrates. In this paper the topography of these cyclic AMP-dependent phosphorylation systems is described. The results show that the kinases which phosphorylate only exogenous substrates are primarily localized to the outer plasma membrane surface whereas the endogenous cyclic AMP-dependent protein kinase and its two endogenous substrates are localized to the cytoplasmic plasma membrane surface. The data also establish that neither the cytoplasmically orientated kinase nor its substrates has a transmembrane orientation even though factors acting on the outer plasma membrane can affect these proteins. This suggests that functional modulation of the cytoplasmically localized cyclic AMP-dependent phosphorylation system can be mediated by a transmembrane regulatory mechanism. The importance of determining the topography of such plasma membrane phosphorylation systems is emphasized by recent studies which show that neoplastic transformation can be mediated at least in part by protein kinases and/or phosphoproteins which are localized on the cytoplasmic surface of the plasma membrane.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 483 (1981), S. 145-152 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Investigations on the Coordination Chemistry of Zinc Dialkyls. XVI. Synthesis and Investigation of Dinorbornyl Zinc CompoundsBis(1-norbornyl)-, bis(2-norbornyl)-, and bis(7-norbornyl)zinc were synthesized from zink chloride and the corresponding Grignard compounds or norbornyl lithium compounds, respectively. The properties of these compounds differ remarkably. A detailed characterization took place by the mass, IR and 13C-NMR spectra and by investigation of the thermal decomposition and complex formation reactions.For comparison the bis(7-norbornenyl)zinc was prepared and characterized.
    Notes: Bis(1-norbornyl)-, Bis(2-norbornyl)- und Bis(7-norbornyl)-zinkNorbornyl = Bicyclo-[2.2.1]-heptyl, (Nor). wurden aus Zinkchlorid und den entsprechenden Grignardverbindungen bzw. Norbornyllithiumverbindungen synthetisiert. Die drei Substanzen unterscheiden sich beträchtlich in ihren Eigenschaften. Eine nähere Charakterisierung erfolgte durch Aufnahme und Auswertung der Massen-, IR- und 13C-NMR Spektren sowie durch Untersuchung des thermischen Zerfalls und von Komplexbildungsreaktionen.Für Vergleichszwecke wurde das Bis(7-norbornenyl)-zinkNorbornenyl = Bicyclo-[2.2.1]-hepten(2)-yl. dargestellt und untersucht.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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