GTP ADP c00 C00 HN-C-H NAD(P) +NAD(P)H +H* C=0 CH2 +H20 NH CH2 glutamate dehydrogenase CH2 C00 Glutamate a-Ketoglutarate 氧化脱氨基作用： 是指在酶的催化下氨基酸在氧化脱氢的同时脱去氨基的过程