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  • Title: Measurement of uroporphyrinogen decarboxylase using porphyrinogens prepared by chemical reduction.
    Author: Elder GH, Wyvill PC.
    Journal: Enzyme; 1982; 28(2-3):186-95. PubMed ID: 7140720.
    Abstract:
    A sensitive, specific method for the measurement of uroporphyrinogen decarboxylase(porphyrinogen carboxy-lyase, EC4.1.1.37) in liver homogenates, haemolysates and other tissues is described. Pentacarboxylic porphyrinogen III, prepared from the corresponding porphyrin by reduction with sodium-mercury amalgam, is used as substrate. After oxidation and methyl esterification the reaction product, coproporphyrinogen III, is separated from the substrate and measured by high-performance liquid chromatography, with mesoporphyrin IX as internal standard. The method can readily be adapted for use with any of the other substrates of uroporphyrinogen decarboxylase, including uroporphyrinogens I and III.
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