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细胞色素P450酶是一组主要存在于肝脏的同工酶，在外源物质代谢中具有重要作用，尤其是药物和毒物的代谢。AH在P450酶系中相当于CYP2E1亚型，CYP2E1不仅参与了药物的代谢，而且还能催化多种前致癌物和前毒物的活化过程。 测定原理：AH催化苯胺羟化后产生的4-氨基酚，进一步转变为酚-吲哚复合物，在630nm处有特征吸收峰；通过测定630nm吸光度增加速率，来计算AH活性。
Cytochrome P450 enzymes are a group of isozymes primarily found in the liver and play an important role in the metabolism of xenobiotics, especially drugs and toxins. AH (aniline hydroxylase) corresponds to the CYP2E1 isoform within the P450 enzyme system. CYP2E1 is not only involved in drug metabolism but also catalyzes the activation of various procarcinogens and protoxins. Determination Principle: AH catalyzes the hydroxylation of aniline to produce 4-aminophenol, which is further converted into a phenol-indole complex with a characteristic absorption peak at 630 nm. AH activity is calculated by measuring the rate of increase in absorbance at 630 nm.
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