Discovery of a novel binding pocket for CYP 2C9 inhibitors: crystallography, pharmacophore modelling and inhibitor SAR
作者:Sarah E. Skerratt、Marcel J. de Groot、Chris Phillips
DOI:10.1039/c6md00011h
日期:——
2 in CYP 2C9. Compound 2 adopts a previously unreported binding mode. Less acidic sulfonamide analogues within these series have reduced CYP 2C9 activity, and we postulate this is due to a reduced hydrogen bonding potential with key interacting residues within CYP 2C9. This work shows that CYP 2C9 has a more flexible active site than previously reported; therefore multiple binding modes and alternative
在本文中,我们描述了CYP 2C9抑制剂的新型结合口袋的发现。在辉瑞的孕激素受体拮抗剂计划中确定的三氟甲磺酰胺化合物1和2被发现可以强烈抑制药物代谢细胞色素P450酶CYP 2C9。同源建模和随后的X射线共晶体数据阐明了化合物1和2在CYP 2C9中的结合方向。化合物2采用以前未报告的绑定模式。这些系列中酸性较低的磺酰胺类似物的CYP 2C9活性降低,我们推测这是由于CYP 2C9中的关键相互作用残基的氢键结合力降低。这项工作表明CYP 2C9具有比以前报道的更灵活的活性位点。因此,在预测CYP 2C9亲和力时,必须考虑多种结合模式和其他药效团模型。