L-serine-phosphoethanolamine + CMP + H(+) => CDP-ethanolamine + L-serine
l-serine-phosphoethanolamine + cmp + h(+) => cdp-ethanolamine + l-serine
L-serine-phosphoethanolamine + CMP + H(+) => CDP-ethanolamine + L-serine
l-serine-phosphoethanolamine + cmp + h(+) => cdp-ethanolamine + l-serine