the regulation of body fluid and electrolyte homeostasis. In this study we explore selectivity triggers for a series of nonsteroidal MR antagonists to improve selectivity over other members of the oxosteroid receptor family. A biaryl sulfonamide compound was identified in a high-throughput screening (HTS) campaign. The compound bound to MR with pKi =6.6, but displayed poor selectivity over the glucocorticoid
盐
皮质激素受体(MR)是一种核激素受体,参与体液和电解质稳态的调节。在这项研究中,我们探索了一系列非甾体MR
拮抗剂的选择性触发因素,以提高对
氧甾类受体家族其他成员的选择性。在高通量筛选(H
TS)活动中鉴定了联芳基磺
酰胺化合物。该化合物与MR结合,pKi = 6.6,但对糖
皮质激素受体(GR)和孕激素受体(PR)的选择性较差。在MR与H
TS命中相结合的X射线晶体学分析之后,设计了一个化合物库,该化合物库探索了诱导拟合假设,该假设要求Met852侧链的运动。获得了比PR高11到79倍,比GR高23到234倍的MR选择性。给定U形结合构象,探索了大环化,产生了与pKi = 7.3的MR结合的大环。确定了两个蛋白质
配体X射线结构,证实了所设计化合物的假设结合模式。