nonanoate + 1-octadecanoyl-sn-glycero-3-phosphocholine + H(+) => 1-octadecanoyl-2-nonanoyl-sn-glycero-3-phosphocholine + H2O
nonanoate + 1-octadecanoyl-sn-glycero-3-phosphocholine + h(+) => 1-octadecanoyl-2-nonanoyl-sn-glycero-3-phosphocholine + h2o