ID 1.3.98.6 DE AdoMet-dependent heme synthase. AN SAM-dependent heme synthase. CA Fe-coproporphyrin III + 2 S-adenosyl-L-methionine = 2 5'-deoxyadenosine + CA 2 CO2 + heme b + 2 L-methionine. CC -!- This radical AdoMet enzyme participates in a heme biosynthesis CC pathway found in archaea and sulfur-reducing bacteria, CC cf. EC 1.3.98.5. DR Q72DS4, AHBD_DESVH ; Q46CH7, AHBD_METBF ; Q30Y73, AHBD_OLEA2 ; //