Heme, porphyrin, and cobalamin

Cobaltochelatase (cobT protein) (RefSeq)

Siroheme synthase (RefSeq)

5-aminolevulinic acid synthase (ALAS) (RefSeq)

cobalamin adenosyltransferase, methylmalonyl-CoA mutase cofactor biosynthesis protein (RefSeq)

uroporphyrinogen decarboxylase (RefSeq)

Ferrochelatase (Protoheme ferro-lyase) (Heme synthetase) (RefSeq)

cob(I)alamin adenolsyltransferase/cobinamide ATP-dependent adenolsyltransferase (RefSeq)

cobalamin biosynthesis protein CobW (RefSeq)

precorrin-3B synthase (RefSeq)

Precorrin-2 C(20)-methyltransferase (S-adenosyl-L- methionine--precorrin-2 methyltransferase) (SP2MT) (RefSeq)