label: a 1-hexadecanoyl-2-acyl-sn-glycero-3-phosphocholine + cholesterol => a cholesterol ester + 1-hexadecanoyl-sn-glycero-3-phosphocholine
label_lc: a 1-hexadecanoyl-2-acyl-sn-glycero-3-phosphocholine + cholesterol => a cholesterol ester + 1-hexadecanoyl-sn-glycero-3-phosphocholine