label: a monoacyl-sn-glycero-3-phosphocholine + a 1,2-diacylglycerol => a 2-acylglycerol + a 1,2-diacyl-sn-glycero-3-phosphocholine
label_lc: a monoacyl-sn-glycero-3-phosphocholine + a 1,2-diacylglycerol => a 2-acylglycerol + a 1,2-diacyl-sn-glycero-3-phosphocholine