利用库林E3联酶适配蛋白SKP1进行向蛋白质降解
Seong Ho Hong1,2, Anand Divakaran1,2, Akane Osa1,2
1Department of Chemistry, University of California, Berkeley, 2151 Berkeley Way, Room 312G, Berkeley, California 94720, United States.
ACS chemical biology
|February 2, 2024
概括
研究人员开发了一种使用蛋白质溶解向嵌合体 (PROTACs) 进行向蛋白质降解的新方法. 这种方法利用SKP1蛋白来降解引起疾病的蛋白质,如BRD4和雄激素受体,提供了一种新的治疗策略.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 药物发现 药物发现 药物发现
背景情况:
- 蛋白质解离向嵌合体 (PROTACs) 利用向的无化和蛋白质酶降解来消除疾病蛋白质.
- 目前的PROTACs主要利用来自Cullin-RING E3泛素合酶的基质受体,如大脑和VHL.
- 对于PROTACs,利用Cullin-RING E3泛素化酶复合物的核心组成部分仍然没有得到充分的探索.
研究的目的:
- 调查使用Cullin-RING E3泛素化酶复合物的核心组件在PROTAC应用中的潜力.
- 发现和验证一种针对SKP1适配蛋白的新型共价招募器.
- 为了证明SKP1-recruiter PROTACs在降解新基底蛋白中的有效性.
主要方法:
- 发现了一种针对SKP1.1的氨酸反应性共价招募器 (EN884).
- 在PROTAC设计中使用EN884以准新基质蛋白.
- 以SKP1-和蛋白酶体依赖的方式评估蛋白质降解.
主要成果:
- 识别了EN884,这是SKP1适应蛋白的共价招募器.
- 证明成功降解新基质蛋白,包括BRD4和雄激素受体,使用SKP1-招募器PROTACs.
- 证实降解取决于SKP1和蛋白质组.
结论:
- 库林-RING E3泛素酶复合体内的核心和基本适应蛋白质可以有效地用于向蛋白质降解.
- 对这些基本目标的招募者发现,共价化学蛋白质组策略是可行的.
- 这项工作扩大了PROTAC技术的范围,通过准E3结合酶机制的新型组件.
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