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  • Springer  (2)
  • 1985-1989  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Protein-polymer grafts. II (1987)
    Springer
    Journal of biological physics 15 (1987), S. 63-68 
    Details
    ISSN: 1573-0689
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Abstract Arginine hydrochloride reacts with equimolar 4-hydroxybenzil smoothly, in 70% ethanolic potassium hydroxide (0.5 m), at room temperature to produceN 5-[5-(p-hydroxphenyl)-4-oxo-5-phenyl-2-imidazolin-2-yl]-L-ornithine, in 70% yield. Purification was affected by paper chromatography. The pure product crystallizes with 1.5 moles of water. It resists boiling in concentrated hydrochloric acid and potassium hydroxide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01858153
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  • 2
    Electronic Resource
    Electronic Resource
    Protein-polymer grafts. III (1987)
    Springer
    Journal of biological physics 15 (1987), S. 71-74 
    Details
    ISSN: 1573-0689
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Abstract Arginines found on protein backbone can be modified easily, using 10 molar excess of 4-hydroxybenzil in 70% ethanolic alkali solution (0.25M), at room temperature. 96% of the arginines are modified this way, as measured by Sakaguchi reaction. The phenolic hydroxide was available for an enzyme, tyrosinase, to be oxidized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01857651
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    Paper (German National Licenses)
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