通过稳定聚二螺旋结构来增强EfB2-特定抑制剂
Jessica C Tennett1, Sophie R Epstein1, Nicholas Sawyer1
1Department of Chemistry, Fordham University, 441 E. Fordham Rd., Bronx, New York 10458, United States.
ACS chemical biology
|May 13, 2024
概括
研究人员通过使用新型交叉链接来稳定关键螺旋结构,开发出强大的EphB2受体抑制剂. 这种方法提高了针对EphB2的特异性,这对了解癌症和神经退行性疾病至关重要.
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:
- 埃弗林 (Eph) 受体是最大的受体氨酸激酶家族,与发育,癌症和神经退行有关.
- 在Eph受体和ephrin连接体之间显著的交叉声需要特定的,高亲和度连接体用于功能质询和调制.
研究的目的:
- 为了合理地开发强大的EphB2受体抑制剂.
- 通过结构稳定,提高EphB2特异性SNEW的抑制功效.
主要方法:
- 交联抑制剂的合理设计和合成.
- 对20多个交叉连接器进行评估,以稳定聚二螺旋.
- 使用核磁共振 (NMR) 和分子动力学 (MD) 模拟的结构分析.
- 结合特异性和蛋白质酶抗性的评估.
主要成果:
- 一个11个原子的交叉链接器,其中包含一个2,7-二甲基纳基部分,产生了最强大的EphB2抑制剂.
- 交叉连接稳定了SNEW的聚二烯螺旋结构,当它与EphB2结合时.
- 交叉链接的变种保持了EphB2结合特异性,并表现出对素蛋白解的交叉链接剂依赖性耐药性.
结论:
- 开发的交联SNEW变种是EphB2受体的强效和特定抑制剂.
- 这种新的循环化策略有效地稳定了中的聚二螺旋结构.
- 这种方法有可能为涉及EphB2信号传递和其他聚二螺旋介导的蛋白质与蛋白质相互作用 (PPI) 的疾病开发有针对性的疗法.
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