bpk:BBK_502 K01749 hydroxymethylbilane synthase [EC:2.5.1.61] | (GenBank) hemC; hemC: porphobilinogen deaminase bpk:BBK_503 K01595 phosphoenolpyruvate carboxylase [EC:4.1.1.31] | (GenBank) phosphoenolpyruvate carboxylase family protein