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[求助]
專業(yè)點(diǎn)的哦,CYP450的 很簡(jiǎn)單 來看看!
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Cytochrome P450 monooxygenases (P450; CYP) are a superfamily of hemecontaining enzymes which catalyze the molecular scission of the O--O bond of atmospheric dioxygen using reducing equivalents supplied by NADPH/NADH and channeled to the P450 heme Fe center almost always through ancillary redox partner proteins [1,2]. Generally, one atom is incorporated into the substrate molecule and the other oxygen atom is reduced to a water molecule (Scheme I). The array of oxidation reactions catalyzed by the P450 enzyme superfamily is unprecedented in biological chemistry. |


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細(xì)胞色素P450單氧酶(P450;CYP)是一個(gè)含血紅素酶的超家族,這種酶能利用NADPH/NADH提供的還原力催化大氣分子氧中O-O鍵的分子斷鏈,并且?guī)缀醵际峭ㄟ^P450血紅素鐵中心輔助氧化還原伴侶蛋白來進(jìn)行引導(dǎo)的[1,2]。一般情況下,單個(gè)原子包含在基質(zhì)分子中而其他氧原子則還原為水分子(方案I)。P450酶超家族催化的該系列的氧化反應(yīng)在生物化學(xué)中是前所未有的。 NADPH:還原型煙酰胺腺嘌呤二核苷酸磷酸 NADH:煙酰胺腺嘌呤二核苷酸 |
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