作者:Collie, Gavin W.、Börjesson, Ulf、Chen, Yunhua、Dong, Zhiqiang、Di Fruscia, Paolo、Gohlke, Andrea、Hoyle, Anna、Hunt, Thomas A.、Jesani, Mehul H.、Luo, Haiou、Luptak, Jakub、Milbradt, Alexander G.、Narasimhan, Priyanka、Packer, Martin、Patel, Saleha、Qiao, Jingchuan、Storer, R. Ian、Stubbs, Christopher J.、Tart, Jonathan、Truman, Caroline、Wang, Anderson T.、Wheeler, Matthew G.、Winter-Holt, Jon
DOI:10.1021/acsmedchemlett.3c00453
日期:——
cancer drug target, yet there are currently few small molecule inhibitors of this enzyme reported, and no liganded crystal structures are available to guide hit optimization. Here we report the fragment-based discovery of novel small molecule MUS81 inhibitors with sub-μM biochemical activity. These inhibitors were used to develop a novel crystal system, providing the first structural insight into the
MUS81 是一种结构选择性核酸内切酶,可切割同源重组和有丝分裂等自然生理过程产生的各种分支 DNA 结构。因此,MUS81 能够缓解复制压力,据报道,其功能对于许多癌症的生存至关重要,特别是那些 DNA 修复机制功能失调的癌症。因此,人们对 MUS81 作为癌症药物靶点感兴趣,但目前很少有这种酶的小分子抑制剂报道,并且没有配体晶体结构可用于指导命中优化。在这里,我们报告了基于片段的新型小分子 MUS81 抑制剂的发现,其具有亚μM 生化活性。这些抑制剂被用来开发一种新型晶体系统,为小分子抑制 MUS81 提供了第一个结构见解。