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Updated: Jul 7, 2026

Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods

Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods

Published on: July 17, 2019

针对CDC37辅导体和客户端基因酶之间的蛋白质-蛋白质相互作用,通过一个杂的英国皇家空军滴度破解器

Alison Yu, Shrhea Banerjee, Sravani Malasani

bioRxiv : the preprint server for biology

|March 3, 2025

概括

布拉夫提德破坏了CDC37-激酶相互作用,导致RAF激酶的蛋白质体降解,并减少了癌细胞的增殖. 这揭示了一个新的治疗策略,针对酶 - 沙佩龙复合体.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
生物化学生物化学

背景情况:

布拉夫提德是一种RAF激酶二聚干扰剂,也通过未知的机制诱导蛋白质体降解.
CDC37是HSP90.0对激酶识别至关重要的共同监护者.
该RAF二元接口与CDC37-激酶结合基因 (αC-β4循环) 具有同质性.

研究的目的:

为了阐明布拉夫蒂德作用的双重机制.
为了研究Braftide的潜力,作为一种化学探测器,用于酶 - 沙龙相互作用.
评估针对CDC37-客户端激酶相互作用的治疗影响.

主要方法:

同免疫沉和NanoBiT测试证实了Braftide对CDC37-客户端激酶相互作用的破坏.
交换质谱学,分子动力学模拟,以及体外交叉连接来绘制结合点的地图.
癌症细胞系增殖和亡试验.

主要成果:

布拉夫提德选择性地破坏了CDC37的客户端激酶相互作用,节省了HSP90.
布拉夫提德结合会破坏RAF激酶客户端的稳定,从而诱导蛋白质体的降解.
布拉夫提德与HSP90抑制剂协同作用,导致复合物的增强不稳定.
破坏CDC37-RAF复合体会减少癌细胞的增殖,增加细胞亡.

结论:

布拉夫蒂德的双重功能源于破坏了CDC37的客户端激酶相互作用.
针对CDC37-客户端激酶相互作用是一种可行的治疗策略.
αC螺旋-β4循环代表了下一代治疗开发的新型全位.

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Exploring Biomolecular Interaction Between the Molecular Chaperone Hsp90 and Its Client Protein Kinase Cdc37 using Field-Effect Biosensing Technology

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Bioluminescence Resonance Energy Transfer (BRET)-Based Assay for Measuring Interactions of CRAF with 14-3-3 Proteins in Live Cells

Bioluminescence Resonance Energy Transfer (BRET)-Based Assay for Measuring Interactions of CRAF with 14-3-3 Proteins in Live Cells

Published on: March 1, 2024

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