cytidine 5'-{[hydroxy(2-hydroxyethyl)phosphonoyl]phosphate} + methylcob(III)alamin + S-adenosyl-L-methionine = cytidine 5'-({hydroxy[(S)-2-hydroxypropyl]phosphonoyl}phosphate) + cob(III)alamin + 5'-deoxyadenosine + L-methionine
cytidine 5'-{[hydroxy(2-hydroxyethyl)phosphonoyl]phosphate} + methylcob(iii)alamin + s-adenosyl-l-methionine = cytidine 5'-({hydroxy[(s)-2-hydroxypropyl]phosphonoyl}phosphate) + cob(iii)alamin + 5'-deoxyadenosine + l-methionine
cytidine 5'-{[hydroxy(2-hydroxyethyl)phosphonoyl]phosphate} + methylcob(III)alamin + S-adenosyl-L-methionine = cytidine 5'-({hydroxy[(S)-2-hydroxypropyl]phosphonoyl}phosphate) + cob(III)alamin + 5'-deoxyadenosine + L-methionine
cytidine 5'-{[hydroxy(2-hydroxyethyl)phosphonoyl]phosphate} + methylcob(iii)alamin + s-adenosyl-l-methionine = cytidine 5'-({hydroxy[(s)-2-hydroxypropyl]phosphonoyl}phosphate) + cob(iii)alamin + 5'-deoxyadenosine + l-methionine