2.转氨基作用 CH3 转氨酶 R2 C00 谷丙转氨酶 (CH2)2 C=0 H-C- NH3* C=0 CHNH3+ C00 C00 C00 丙酮酸 Q-氨基骏 文-酮酸 C00 谷氨酸 R R2 C00 C=0 H一C-NH (CH2)2 CHa C=0 CHNH3 C00 C00 α-酮骏 π一氨基骏 C00 C00 π-酮戊二酸 丙氨酸 2. 转氨基作用