2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + octadecanoate + H(+) => 1-octadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + H2O
2-(9z-octadecenoyl)-sn-glycero-3-phosphocholine + octadecanoate + h(+) => 1-octadecanoyl-2-(9z-octadecenoyl)-sn-glycero-3-phosphocholine + h2o