Adenosine triphosphate + Cobalamin → PPPi + coenzyme B12
Guanosine triphosphate + Hydrogen Ion + adenosylcobinamide phosphate → Adenosylcobinamide-GDP + Pyrophosphate
Adenosylcobinamide-GDP + N1-(5-Phospho-a-D-ribosyl)-5,6-dimethylbenzimidazole → GMP + Hydrogen Ion + adenosylcobalamin 5'-phosphate
Water + adenosylcobalamin 5'-phosphate → Phosphate + coenzyme B12
Adenosine triphosphate + Adenosyl cobinamide → Adenosine diphosphate + Hydrogen Ion + adenosylcobinamide phosphate
Dimethylbenzimidazole + nicotinate β-D-ribonucleotide → Hydrogen Ion + N1-(5-Phospho-a-D-ribosyl)-5,6-dimethylbenzimidazole + Nicotinic acid
Adenosine triphosphate + Cobinamide → Adenosyl cobinamide + Triphosphate
Cobinamide (→) Transport: Escherichia coli W, Extracellular Space to Escherichia coli W, Periplasmic Space
Cyanocobalamin (→) Transport: Escherichia coli W, Extracellular Space to Escherichia coli W, Periplasmic Space
Adenosylcobalamin Salvage from Cobinamide
nicotinate-nucleotide dimethylbenzimidazole phosphoribosyltransferase
Adenosine triphosphate + Cobinamide + Water → Adenosine diphosphate + Cobinamide + Hydrogen Ion + Phosphate
Adenosine triphosphate + Cyanocobalamin + Water → Adenosine diphosphate + Cyanocobalamin + Hydrogen Ion + Phosphate