KRAS is vulnerable to reversible switch-II pocket engagement in cells.
KRAS is vulnerable to reversible switch-II pocket engagement in cells.
复制标题
DOI:
10.1038/s41589-022-00985-w
复制
发表时间:
2022-06
影响因子:
14.8
通讯作者:
Shokat, Kevan M.
中科院分区:
文献类型:
--
作者:
Vasta, James D.;Peacock, D. Matthew;Zheng, Qinheng;Walker, Joel A.;Zhang, Ziyang;Zimprich, Chad A.;Thomas, Morgan R.;Beck, Michael T.;Binkowski, Brock F.;Corona, Cesear R.;Robers, Matthew B.;Shokat, Kevan M.
Current small-molecule inhibitors of KRAS(G12C) bind irreversibly in the switch-II pocket (SII-P), exploiting the strong nucleophilicity of the acquired cysteine as well as the preponderance of the GDP-bound form of this mutant. Nevertheless, many oncogenic KRAS mutants lack these two features, and it remains unknown whether targeting the SII-P is a practical therapeutic approach for KRAS mutants beyond G12C. Here we use NMR spectroscopy and a cellular KRAS engagement assay to address this question by examining a collection of SII-P ligands from the literature and from our own laboratory. We show that the SII-Ps of many KRAS hotspot (G12, G13, Q61) mutants are accessible using noncovalent ligands, and that this accessibility is not necessarily coupled to the GDP state of KRAS. The results we describe here emphasize the SII-P as a privileged drug-binding site on KRAS and unveil new therapeutic opportunities in RAS-driven cancer. The use of NMR spectroscopy and development of a cellular BRET KRAS engagement assay revealed that noncovalent ligands can access the switch-II pocket of KRAS hotspot mutants.
登录
查看更多内容
DOI:
10.1073/pnas.96.12.7065
发表时间:
1999-06-08
影响因子:
11.1
作者:
Ahmadian, MR;Zor, T;Scheffzek, K
通讯作者:
Scheffzek, K
DOI:
10.1073/pnas.1200773109
发表时间:
2012-05-22
影响因子:
11.1
作者:
Janosi, Lorant;Li, Zhenlong;Gorfe, Alemayehu A.
通讯作者:
Gorfe, Alemayehu A.
影响因子:
7.3
作者:
Fell, Jay B.;Fischer, John P.;Marx, Matthew A.
通讯作者:
Marx, Matthew A.
影响因子:
7.3
作者:
Lanman, Brian A.;Allen, Jennifer R.;Cee, Victor J.
通讯作者:
Cee, Victor J.
影响因子:
0.9
作者:
Palfy, Gyula;Vida, Istvan;Perczel, Andras
通讯作者:
Perczel, Andras