1,2-di-(9Z-hexadecenoyl)-sn-glycero-3-phosphocholine + CMP + H(+) => 1,2-di-(9Z-hexadecenoyl)-sn-glycerol + CDP-choline
1,2-di-(9z-hexadecenoyl)-sn-glycero-3-phosphocholine + cmp + h(+) => 1,2-di-(9z-hexadecenoyl)-sn-glycerol + cdp-choline