6.3.2.14 6 ATP + 3 2,3-dihydroxybenzoate + 3 L-serine = enterobactin + 6 AMP + 6 diphosphate bi-uni-uni-bi ping-pong kinetic mechanism 726950 6.3.2.14 6 ATP + 3 2,3-dihydroxybenzoate + 3 L-serine = enterobactin + 6 AMP + 6 diphosphate L-Ser-adenylate is an enzyme-bound intermediate 1045