通过基于GaMD轨迹的深度学习,了解化诱导对CDK6的构造和抑制剂结合的影响
Lu Zhao1, Jian Wang1, Wanchun Yang1
1School of Science, Shandong Jiaotong University, Jinan 250357, China. zhaolusdu@163.com.
Physical chemistry chemical physics : PCCP
|March 12, 2025
概括
化CDK6在T177显著改变其结构动态,特别是T循环,影响抑制剂结合. 这项研究揭示了开发新型CDK6抑制剂的关键分子机制.
科学领域:
- 分子生物学分子生物学
- 生物化学 生物化学
- 计算化学是一种计算化学.
背景情况:
- 循环素依赖性激酶6 (CDK6) 是细胞循环进展的关键调节剂.
- 异常的CDK6活性与各种癌症有关,使其成为治疗点.
- 翻译后的修改,如酸化,可以调节CDK6功能和抑制剂的有效性.
研究的目的:
- 阐明T177酸化影响CDK6形态动态的分子机制.
- 研究酸化对CDK6抑制剂的结合相互作用的影响 (6ZV,6ZZ,0RS).
- 为改进的CDK6向药物的合理设计提供见解.
主要方法:
- 高斯加速分子动力学 (GaMD) 模拟以捕捉动态构造变化.
- 深度学习 (DL) 分析以确定关键的结构元素和相互作用.
- 免费能源景观 (FEL) 和主要组件分析 (PCA) 用于构造和动态洞察.
- 用泛化的Born表面积 (MM-GBSA) 进行结合亲和力计算的分子力学.
主要成果:
- T177酸化诱导了CDK6的显著构造变化,特别是影响T环,β片和αC螺旋.
- T环在CDK6功能中起着至关重要的作用,其构造因T177酸化而改变.
- 抑制剂6ZV与6ZZ和0RS相比,对CDK6的结合更强,这归因于更多的键相互作用.
结论:
- T177酸化是一个关键的调节事件,影响CDK6的结构动态和抑制剂相互作用.
- 确定T循环是CDK6.6的一个关键功能元素.
- 了解这些酸化中介作用可以指导开发更有效的CDK6抑制剂.
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