Normal and abnormal heme biosynthesis. Part 7. Synthesis and metabolism of coproporphyrinogen-III analogues with acetate or butyrate side chains on rings C and D. Development of a modified model for the active site of coproporphyrinogen oxidase

Coproporphyrinogen analogues with acetate or butyrate groups in place of the usual propionate moieties on rings C and D have been used to probe the substrate binding requirements for coproporphyrinogen oxidase.