5-oxopentanoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine + H(+) => 1-hexadecanoyl-2-(5-oxopentanoyl)-sn-glycero-3-phosphocholine + H2O
5-oxopentanoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine + h(+) => 1-hexadecanoyl-2-(5-oxopentanoyl)-sn-glycero-3-phosphocholine + h2o