label: a 2-acyl-sn-glycero-3-phosphocholine + hexadecanoate + H(+) => a 1-hexadecanoyl-2-acyl-sn-glycero-3-phosphocholine + H2O
label_lc: a 2-acyl-sn-glycero-3-phosphocholine + hexadecanoate + h(+) => a 1-hexadecanoyl-2-acyl-sn-glycero-3-phosphocholine + h2o