6.3.2.1 pantoate-beta-alanine ligase (AMP-forming) - 6.3.2.10 UDP-N-acetylmuramoyl-tripeptide-D-alanyl-D-alanine ligase - 6.3.2.11 carnosine synthase - 6.3.2.12 dihydrofolate synthase - 6.3.2.13 UDP-N-acetylmuramoyl-L-alanyl-D-glutamate-2,6-diaminopimelate ligase - 6.3.2.14 enterobactin synthase - 6.3.2.15 UDP-N-acetylmuramoylalanyl-D-glutamyl-2,6-diamino-pimelate-D-alanyl-D-alanine ligase deleted 6.3.2.16 D-alanine-alanyl-poly(glycerolphosphate) ligase - 6.3.2.17 tetrahydrofolate synthase - 6.3.2.18 gamma-glutamylhistamine synthase -