uroporphyrinogen III + 4 H(+) => coproporphyrinogen III + 4 CO2
uroporphyrinogen iii + 4 h(+) => coproporphyrinogen iii + 4 co2
uroporphyrinogen III + 4 H(+) => coproporphyrinogen III + 4 CO2
uroporphyrinogen iii + 4 h(+) => coproporphyrinogen iii + 4 co2