coproporphyrin

coproporphyrin

 [kop″ro-por´fĭ-rin] a porphyrin occurring as several isomers; the III isomer, an intermediate in heme biosynthesis, is excreted in the feces and urine in hereditary coproporphyria and variegate porphyria; the I isomer, a side product, is excreted in the feces and urine in congenital erythropoietic porphyria.

cop·ro·por·phy·rin

(kop'rō-pōr'fi-rin), One of two porphyrin compounds found normally in feces as a decomposition product of bilirubin (hence, from hemoglobin); certain corproporphyrins are elevated in certain porphyrias.
See also: porphyrinogens.

cop·ro·por·phy·rin

(kop'rō-pōr'fĭr-in) One of two porphyrin compounds found normally in feces as a decomposition product of bilirubin (hence, from hemoglobin); certain coproporphyrins are elevated in certain porphyrias.
See also: porphyrinogens

cop·ro·por·phy·rin

(kop'rō-pōr'fĭr-in) One of two porphyrin compounds found normally in feces as a decomposition product of bilirubin.