可逆共价激酶抑制剂的基于电友片段的设计
Rand M Miller1, Ville O Paavilainen, Shyam Krishnan
1Chemistry and Chemical Biology Graduate Program, University of California, San Francisco, California 94158, USA.
Journal of the American Chemical Society
|April 2, 2013
概括
研究人员开发了针对MSK1激酶的新型可逆共价抑制剂. 这些抑制剂向非催化氨酸,具有高选择性,并阻断关键细胞信号通路,包括CREB酸化.
科学领域:
- 药用化学 医学化学
- 分子生物学分子生物学
- 结构生物学 结构生物学
背景情况:
- 基于碎片的配体设计和共价向是开发激酶抑制剂的有效策略.
- 非催化氨酸为选择性共价变异提供了独特的位置.
- MSK1 (甲基因和应激激活蛋白激酶1) 是细胞反应的关键调节者.
研究的目的:
- 将基于片段的设计与共价向相结合,开发新的MSK1抑制剂.
- 为了确定MSK1 C-终端激酶域的强效和选择性抑制剂.
- 描述新开发的抑制剂的机制和细胞效应.
主要方法:
- 使用低分子量,异构替代的烯胺为可逆共价键的形成.
- 采用X射线共同晶体结构来指导碎片处理.
- 评估了激酶抑制,选择性和细胞活性,包括下游信号.
主要成果:
- 识别了具有高连接剂效率和MSK1.1的选择性的电友碎片.
- 开发的化合物12 (RMM-46),是一种可逆共价抑制剂,向MSK/RSK激酶.
- 证明了细胞MSK和RSK激活和CREB酸化的纳米分子抑制.
结论:
- 这项研究报告了第一个针对MSK1 C-终端域的可逆共价抑制剂.
- 开发的抑制剂具有高强度,选择性,并有效地阻断MSK/RSK信号传递.
- 基于片段和共价向的联合向方法是酶抑制剂开发的可行策略.
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