超越基因组学的结构生物信息学,以扩大KRAS突变景观的动态特征
Brian D Ratnasinghe1, Neshatul Haque1, Jessica B Wagenknecht1
1Bioinformatics Research and Development Laboratory, Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
Computational and structural biotechnology journal
|October 16, 2023
概括
结构生物信息学和分子模拟揭示了86个KRAS突变如何影响蛋白质功能. 这种方法提供了超越基因组数据的洞察力,有助于理解癌症和罕见疾病.
科学领域:
- 基因组测序是一种基因组测序.
- 结构生物信息学 结构生物信息学
- 分子模拟的分子模拟.
背景情况:
- 基因组测序能力超过了功能解释方法.
- 之前的工作证明了3D蛋白质结构计算有助于理解疾病的遗传变异.
- 克拉斯GTPase突变在癌症和生殖线条件中至关重要,但专注于热点突变会使许多不具特征.
研究的目的:
- 扩展结构生物信息学和分子模拟以分析86个KRAS突变的扩展景观.
- 确定与KRAS生物物理和生物化学性质相关的协调变化.
- 了解KRAS突变如何超越热点,调节蛋白质功能并影响分子相互作用.
主要方法:
- 利用结构生物信息学和分子模拟来分析86种KRAS突变.
- 实验测量了突变的热稳定性.
- 与实验数据相关的模拟结果.
主要成果:
- 在热点和非热点突变中确定了与KRAS生物物理和生物化学性质相关的协调变化.
- 观察到突变导致Switch区域的调节失调,导致突变受限的形状与改变的效应因子结合.
- 实验性热稳定性测量显示了与模拟结果一致的模式,突出了共享和独特的构造变化.
结论:
- 克拉斯突变诱导了特定的形状,影响了效应器结合倾向.
- 这些突变特异性构造对分子和细胞功能有影响,影响疾病机制.
- 分子模拟为解释人类遗传变异提供了关键的功能信息,补充了基因组工具.
更多相关视频
15:05Deciphering the Structural Effects of Activating EGFR Somatic Mutations with Molecular Dynamics Simulation
Published on: May 20, 2020
8.7K
08:46Implementation of In Vitro Drug Resistance Assays: Maximizing the Potential for Uncovering Clinically Relevant Resistance Mechanisms
Published on: December 9, 2015
10.6K
相关概念视频
02:38The Ras Gene
6.2K
The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
Ras is a...
Ras is a...
6.2K
01:24Small GTPases - Ras and Rho
4.0K
Ras and Rho are small monomeric GTPases that act downstream of receptor tyrosine kinase (RTK) and regulate various cellular processes. These GTPases switch between active and inactive states by binding to guanine nucleotides.
Three regulatory proteins control their activity:
Three regulatory proteins control their activity:
4.0K