protoporphyrin IX + 3 a ubiquinol => protoporphyrinogen IX + 3 a ubiquinone
protoporphyrin ix + 3 a ubiquinol => protoporphyrinogen ix + 3 a ubiquinone
protoporphyrin IX + 3 a ubiquinol => protoporphyrinogen IX + 3 a ubiquinone
protoporphyrin ix + 3 a ubiquinol => protoporphyrinogen ix + 3 a ubiquinone