van:VAA_01951 K01749 hydroxymethylbilane synthase [EC:2.5.1.61] | (GenBank) Porphobilinogen deaminase van:VAA_01950 K01719 uroporphyrinogen-III synthase [EC:4.2.1.75] | (GenBank) Uroporphyrinogen-III synthase van:VAA_01949 K02496 uroporphyrin-III C-methyltransferase [EC:2.1.1.107] | (GenBank) Uroporphyrin-III C-methyltransferase van:VAA_01948 K02498 HemY protein | (GenBank) HemY