ID 6.3.3.6 DE carbapenam-3-carboxylate synthase. AN carbapenam-3-carboxylate ligase. CA (2S,5S)-5-carboxymethylproline + ATP = (3S,5S)-carbapenam-3-caboxylate + CA AMP + diphosphate + H(+). CC -!- The enzyme is involved in the biosynthesis of the carbapenem beta- CC lactam antibiotic (5R)-carbapen-2-em-3-carboxylate in the bacterium CC Pectobacterium carotovorum. CC -!- Formerly EC 6.3.1.16. DR Q9XB61, CARA_PECCC ; //