ID 6.1.1.13 DE D-alanine--poly(phosphoribitol) ligase. AN D-alanine: membrane acceptor ligase. AN D-alanine-activating enzyme. AN D-alanine-D-alanyl carrier protein ligase. AN D-alanine-membrane acceptor ligase. AN D-alanyl-poly(phosphoribitol) synthetase. CA ATP + D-alanine + poly(ribitol phosphate) = AMP + diphosphate + O-D- CA alanyl-poly(ribitol phosphate). CC -!- A thioester bond is formed transiently between D-alanine and the CC sulfhydryl group of the 4'-phosphopantetheine cofactor of D-alanyl CC carrier protein during the activation of the alanine. CC -!- Involved in the synthesis of teichoic acids. //