propanoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine + H(+) => 1-hexadecanoyl-2-propionyl-sn-glycero-3-phosphocholine + H2O
propanoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine + h(+) => 1-hexadecanoyl-2-propionyl-sn-glycero-3-phosphocholine + h2o