甘油一酯途径 肠粘膜细胞中由甘油一酯合成TG的途径 脂酰CoA合成酶 CoA RCOOH RCOCoA ATP AMP PPi CH,OH 酯酰CoA CH2O-C-R2 酯酰CoA CH,O-C-R2 CHO-CR 转移酶 cho-Ur 转移酶 CHO-C- CH,OH R,COCoA CoA CH,OH R,COCoA CoA P CH2O-C-R3 1414 甘油一酯途径 CoA + RCOOH RCOCoA 脂酰CoA合成酶 ATP AMP PPi 酯酰CoA 转移酶 R2COCoA CoA R3COCoA CoA 酯酰CoA 转移酶 CH2OH CH2OH CHO-C-R1 = O CH2OH CH2OH CHO-C-R1 = O CH2OH CH2O-C-R2 CHO-C-R1 = O = O CH2OH CH2O-C-R2 CHO-C-R1 = O = O CH2O-C-R3 CH2O-C-R2 CHO-C-R1 = O O = = O 肠粘膜细胞中由甘油一酯合成TG的途径