Synthesis and structural characterization of a monocarboxylic inhibitor for GRB2 SH2 domain
作者:Tao Xiao、Luxin Sun、Min Zhang、Zilu Li、Eric B. Haura、Ernst Schonbrunn、Haitao Ji
DOI:10.1016/j.bmcl.2021.128354
日期:2021.11
A monocarboxylic inhibitor was designed and synthesized to disrupt the protein–protein interaction (PPI) between GRB2 and phosphotyrosine-containing proteins. Biochemical characterizations show compound 7 binds with the Src homology 2 (SH2) domain of GRB2 and is more potent than EGFR1068 phosphopeptide 14-mer. X-ray crystallographic studies demonstrate compound 7 occupies the GRB2 binding site for
设计并合成了一种单羧酸抑制剂来破坏 GRB2 和含磷酸酪氨酸的蛋白质之间的蛋白质相互作用 (PPI)。生化表征显示化合物7与 GRB2 的 Src 同源 2 (SH2) 结构域结合,并且比 EGFR 1068磷酸肽 14-mer 更有效。X 射线晶体学研究表明,化合物7占据了含有磷酸酪氨酸序列的 GRB2 结合位点,并揭示了 GRB2 抑制剂结合的关键结构特征。这种具有 –1 正式电荷的化合物为结构优化提供了新的方向,从而为异常 Ras-MAPK 信号级联的这一关键蛋白靶点生成细胞渗透性抑制剂。