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  • Electronic Resource  (3)
  • 1950-1954  (3)
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  • Electronic Resource  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Enzymic Oxidation of Proteins and the Enzymic Inactivation of Insulin (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 523-524 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Working with polyphenol-oxidase of potato plus traces of catechol (Dr. Sizer and his colleagues used mushroom 'tyrosinase' plus an activator) I succeeded in oxidizing the phenolic groups of insulin and of certain globulins of horse plasma and serum, which are precipitated between 0-25 and 0-50 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/165523a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Tyrosinase and Polyphenoloxidase; the Role of Metallic Ions in Melanogenesis (1951)
    [s.l.] : Nature Publishing Group
    Nature 168 (1951), S. 697-697 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The apparent different specificity of enzymes of animal and of vegetable origin towards monohydroxy-and o-dihydroxy-phenols has led me to re-examine the possible role of metallic ions in the enzymic oxidation of o-dihydroxyphenylalanine and of tyrosine. In this work the copper-free protein of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/168697a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    « Corps rouge » (Red Body) et Hallachrome (1950)
    Springer
    Cellular and molecular life sciences 6 (1950), S. 473-474 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary It is generally admitted that the red pigment characteristic of the first phase of melanogenesis, “red body”, and Hallachrome are the same substance, viz. 2-carboxy-2,3-dihydroindole-5,6-quinone. However, these two substances possess such widely differing properties that it is almost impossible to regard them as identical. It seems difficult to decide on the basis of the existing evidence which of the two is really 2-carboxy-2,3-dihydroindole-5,6-quinone, if indeed either one of them be.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02154113
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    Paper (German National Licenses)
    Fulltext
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