2.7.2.2	ACK, anabolic carbamyl kinase, ArcC, carbamate kinase, carbamoyl phosphokinase, carbamyl phosphokinase, catabolic carbamyl kinase, Cbk, CCK, CK, CK-like CPS, CKase, GlcK, kinase, carbamate (phosphorylating), putrescine synthase