Stafia‐1: a STAT5a‐Selective Inhibitor Developed via Docking‐Based Screening of in Silico O‐Phosphorylated Fragments
作者:Kalaiselvi Natarajan、Daniel Müller‐Klieser、Stefan Rubner、Thorsten Berg
DOI:10.1002/chem.201904147
日期:2020.1.2
After analysis of its selectivity profile, the most potent inhibitor was then developed to Stafia-1, the first small molecule shown to preferentially inhibit the STAT family member STAT5a over the close homologue STAT5b. A phosphonate prodrug based on Stafia-1 inhibited STAT5a with selectivity over STAT5b in human leukemia cells, providing the first demonstration of selective in vitro and intracellular
我们提出了一种新的方法来鉴定磷酸化依赖性蛋白-蛋白相互作用域的抑制剂,其中酚类片段通过基于对接的筛选的计算机O-磷酸化进行了适应。从10 369 180个化合物的数据库中,我们鉴定了85 021个天然产物衍生的酚片段,它们实际上是O-磷酸化的,并筛选了与STAT3 SH2结构域的计算机结合。然后合成了九个筛选结果,其中八个显示出对STAT3的体外抑制程度。在分析了其选择性特征后,最有效的抑制剂被开发为Stafia-1,这是第一个显示出比紧密同源的STAT5b优先抑制STAT家族成员STAT5a的小分子。