DCAF11 支持通过电友蛋白质溶解向化马的向蛋白质降解
Xiaoyu Zhang1, Lena M Luukkonen2, Christie L Eissler2
1The Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92307, United States.
Journal of the American Chemical Society
|March 30, 2021
概括
新的电友蛋白质分解向基因组 (PROTACs) 向DCAF11,这是一个以前未被描述的E3链酶. 这一发现扩大了针对人类细胞蛋白质降解的工具包, 包括癌症治疗.
科学领域:
- 分子生物学
- 生物化学
- 化学生物学
背景情况:
- 带诱导的蛋白质降解利用无素蛋白酶系统进行向的蛋白质清除.
- 已知有限数量的E3链酶支持这一过程,阻碍了化向基因组 (PROTAC) 的发展.
- 对于有效的PROTAC设计,需要新的E3连接酶和化合物.
研究的目的:
- 使用电友性PROTACs发现可以支持联体诱导蛋白质降解的新型E3联酶.
- 识别能够共价参与E3链酶以向蛋白质消除的双功能化合物.
- 描述新发现的E3酶与PROTAC相互作用的作用机制和基质范围.
主要方法:
- 聚焦候选电友PROTAC库的功能选.
- 涉及E3结合酶中特定的氨酸残留物的共价修饰的机制研究
- 在人类前列腺癌细胞中对内源蛋白质的降解测试.
主要成果:
- 发现电友性PROTACs可对DCAF11进行协同作用,这是一种特征不佳的E3连接酶基质适配器.
- 证明DCAF11通过修改特定的半氨酸调解体诱导的蛋白质降解.
- 在使用DCAF11招募PROTAC的前列腺癌细胞中成功降解内源蛋白,包括FBKP12和雄激素受体.
结论:
- DCAF11被确定为一种新型E3连接酶,能够支持连接体诱导的蛋白质降解.
- 电友性PROTAC提供了一种可行的策略,用于利用DCAF11进行向性蛋白质消除.
- 这项工作扩大了PROTAC开发的E3链酶的范围,并为癌症提供了潜在的治疗途径.
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