Adenosylcobinamide-phosphate synthase

Adenosylcobinamide-phosphate synthase (, CbiB) is an enzyme with systematic name adenosylcobyric acid:(R)-1-aminopropan-2-yl phosphate ligase (ADP-forming). This enzyme catalyses the following chemical reaction


 * (1) ATP + adenosylcobyric acid + (R)-1-aminopropan-2-yl phosphate $$\rightleftharpoons$$ ADP + phosphate + adenosylcobinamide phosphate
 * (2) ATP + adenosylcobyric acid + (R)-1-aminopropan-2-ol $$\rightleftharpoons$$ ADP + phosphate + adenosylcobinamide

One of the substrates, (R)-1-aminopropan-2-yl phosphate, is produced by CobD. This enzyme is part of the biosynthetic pathway to cobalamin (vitamin B12) in bacteria.