Effects of fluorine substitution on substrate conversion by cytochromes P450 17A1 and 21A2
作者:Caleb D. Vogt、Aaron G. Bart、Rahul Yadav、Emily E. Scott、Jeffrey Aubé
DOI:10.1039/d1ob01178b
日期:——
Cytochromes P450 17A1 (CYP7A1) and 21A2 (CYP21A2) catalyze key reactions in the production of steroid hormones, including mineralocorticoids, glucocorticoids, and androgens. With the ultimate goal of designing probes that are selectively metabolized to each of these steroid types, fluorinated derivatives of the endogenous substrates, pregnenolone and progesterone, were prepared to study the effects
细胞色素 P450 17A1 (CYP7A1) 和 21A2 (CYP21A2) 催化类固醇激素(包括盐皮质激素、糖皮质激素和雄激素)生成中的关键反应。最终目标是设计选择性代谢每种类固醇类型的探针,准备内源性底物孕烯醇酮和黄体酮的氟化衍生物来研究对 CYP17A1 和 CYP21A2 活性的影响。在功能测定中,当在代谢位点(分别为类固醇核心的位置 17 和 21)引入氟时,这些酶催化的羟化酶反应都会被阻断。此外,CYP17A1 在 21 位安装有氟的底物上进行 17,20-裂解酶反应。重要的是,如光谱结合测定所证明的,本文检查的取代均未阻止化合物进入 CYP17A1 或 CYP21A2 的活性位点。综上所述,结果表明氟可能用于将孕烯醇酮和黄体酮的代谢途径重定向至特定类型的类固醇。