Tags: Enzyme.
Protoporphyrinogen IX dehydrogenase (menaquinone) (EC 1.3.5.3 HemG) is an enzyme with system name protoporphyrinogen IX:menaquinone oxidoreductase. This enzyme catalyses the following chemical reaction protoporphyrinogen IX + 3 menaquinone protoporphyrin IX + 3 menaquinolThis enzyme enables Escherichia coli to synthesize heme in both aerobic and anaerobic environments.