4.98.1.1	protoheme + 2 H+ = protoporphyrin + Fe2+	-	-	
4.98.1.1	protoheme + 2 H+ = protoporphyrin + Fe2+	catalytic model	653316	
4.98.1.1	protoheme + 2 H+ = protoporphyrin + Fe2+	mechanism	649959, 650118, 650173, 652813	
4.98.1.1	protoheme + 2 H+ = protoporphyrin + Fe2+	mechanism: overview	650802, 651523	
4.98.1.1	protoheme + 2 H+ = protoporphyrin + Fe2+	structural model	649452