Inactivation of medium-chain acyl-CoA dehydrogenase by a metabolite of hypoglycin: characterization of the major turnover product and evidence suggesting an alternative flavin modification pathway
作者:Ming Tain Lai、Ding Li、Eugene Oh、Hung Wen Liu
DOI:10.1021/ja00058a001
日期:1993.3
Medium-chain acyl-CoA dehydrogenase (MCAD) is a FAD-dependent enzyme af catalyzes the first step of the fatty acid oxidation cycle. When MCAD is exposed to (methylenecyclopropyl)acetyl-CoA (MCPA-CoA), a metabolite of hypoglycin A and the causative agent of Jamaican vomiting sickness, time-dependent inactivation follows with concomitant bleaching of the active-site FAD. Earlier studies have led to the
中链酰基辅酶A脱氢酶(MCAD)是一种FAD依赖性酶,催化脂肪酸氧化循环的第一步。当 MCAD 暴露于(亚甲基环丙基)乙酰辅酶 A (MCPA-CoA)(一种次甘氨酸 A 的代谢物和牙买加呕吐病的病原体)时,时间依赖性失活会伴随着活性部位 FAD 的漂白。较早的研究导致假设失活可能涉及由瞬时α-环丙基自由基诱导的自发环断裂,因此提出单电子氧化途径