Fig. 3From: Systems metabolic engineering of Corynebacterium glutamicum for the bioproduction of biliverdin via protoporphyrin independent pathwayIn vitro heme synthesis from protoporphyrin IX or coproporphyrin III using HemH and HemQ from C. glutamicum. Plus symbols represent the addition of enzymes (HemH or HemQ) or substrates (protoporphyrin IX or coproporphyrin III)Back to article page