CDP-choline + an N-acylsphing-4-enine => a sphingomyelin + CMP + H(+)
cdp-choline + an n-acylsphing-4-enine => a sphingomyelin + cmp + h(+)
CDP-choline + an N-acylsphing-4-enine => a sphingomyelin + CMP + H(+)
cdp-choline + an n-acylsphing-4-enine => a sphingomyelin + cmp + h(+)