通过高通量选检测识别的KLHDC2配体进行向蛋白质降解
Han Zhou1, Tonglian Zhou1, Wenli Yu2
1Department of Chemistry, Scripps Research, La Jolla, United States.
eLife
|June 16, 2025
概括
研究人员发现了一种新的小分子,该分子向蛋白质溶解向嵌合体 (PROTACs) 的KLHDC2 E3结合酶. 这扩展了PROTAC技术,使得细胞模型中的BRD4等点蛋白质具有强大的降解能力.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 药用化学 医学化学
背景情况:
- 向蛋白质分解的仿真体 (PROTACs) 提供了一种针对蛋白质降解的方法.
- 目前的PROTAC应用受限于少量常用的E3结合酶.
研究的目的:
- 为了识别与 PROTAC 技术兼容的新型 E3 连接酶.
- 开发用于向KLHDC2 E3结合酶的新化学物质.
主要方法:
- 使用基于光偏振的高通量屏幕来识别小分子结合剂.
- 合成的PROTACs使用已识别的KLHDC2连接体.
主要成果:
- 发现了一种新的小分子支架,该支架准了无处不在的E3结合酶KLHDC2.
- 开发了使用KLHDC2连接体的PROTACs,在细胞测试中有效降解BRD4.
结论:
- 鉴定到的KLHDC2连接体扩大了PROTAC开发的化学工具箱.
- 这种方法为发现PROTACs新的E3结合酶结合剂提供了可行的策略.
相关概念视频
Regulated Protein Degradation
7.7K
It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
7.7K
The Proteasome
9.1K
Eukaryotic cells can degrade proteins through several pathways. One of the most important amongst these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
9.1K


