Cytosolic UROD (uroporphyrinogen decarboxylase) catalyzes the reaction of uroporphyrinogen I to form coproporphyrinogen I and four molecules of CO2. Chicken UROD is known only as the inferred product of a gene discovered by analysis of the chicken genomic DNA sequence. Its dimerization to form an active enzyme and its catalytic activity are inferred from the properties of its better-studied human counterpart.
uroporphyrinogen decarboxylase activity of UROD dimer [cytosol]
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