coproporphyrinogen III + O2 + 2 H(+) = protoporphyrinogen IX + 2 CO2 + 2 H2O
coproporphyrinogen iii + o2 + 2 h(+) = protoporphyrinogen ix + 2 co2 + 2 h2o
"Coproporphyrinogen-III oxidase"
"coproporphyrinogen-iii oxidase"