fmo:C4N19_02495 K24866 precorrin-2 dehydrogenase [EC:1.3.1.76] | (GenBank) bifunctional precorrin-2 dehydrogenase/sirohydrochlorin ferrochelatase fmo:C4N19_02485 K01749 hydroxymethylbilane synthase [EC:2.5.1.61] | (GenBank) hemC; hydroxymethylbilane synthase fmo:C4N19_02490 K13542 uroporphyrinogen III methyltransferase / synthase [EC:2.1.1.107 4.2.1.75] | (GenBank) cobA; uroporphyrinogen-III C-methyltransferase