label: a 1-O-acyl-N-acylsphing-4-enine + a 1-acyl-sn-glycero-3-phosphocholine => an N-acylsphing-4-enine + a 1,2-diacyl-sn-glycero-3-phosphocholine
label_lc: a 1-o-acyl-n-acylsphing-4-enine + a 1-acyl-sn-glycero-3-phosphocholine => an n-acylsphing-4-enine + a 1,2-diacyl-sn-glycero-3-phosphocholine