素结合:一个被低估的膜-连接物相互作用的参与者
Rafael Santana Nunes1,2, Diogo Vila-Viçosa1, Paulo J Costa1
1BioISI - Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, Campo Grande, C8 bdg, 1749-016 Lisboa, Portugal.
Journal of the American Chemical Society
|March 9, 2021
概括
在生物膜中观察到基键 (XB),影响基化合物与脂的相互作用. 这一发现对于药物发现和理解膜中的化合物行为至关重要.
科学领域:
- 生物化学
- 计算化学
- 药理学
背景情况:
- 素键 (XB) 是涉及电友素原子的非共价相互作用.
- 在药物发现中,XBs越来越多地用于调节蛋白质-连接体相互作用.
- 它们在生物膜系统中的作用尚未得到充分证实.
研究的目的:
- 提供生物膜系统内素键的直接证据.
- 研究XBs对基化合物与脂的相互作用的影响.
- 探索XBs在膜插入和配体分割中的作用.
主要方法:
- 用分子动力学模拟来建模相互作用.
- 使用二衍生物和模型脂双层.
- 分析的重点是连接体和膜组件之间的有利相互作用.
主要成果:
- 在二衍生物和脂受体 (酸盐/氧) 之间发现了基键的直接证据.
- 通过XB介导的识别会影响连接体膜的插入形状和方向.
- 在水到膜插入过程中系统地观察到XBs.
结论:
- 素键在生物膜系统中起着重要的作用,以前被忽视.
- XB相互作用会影响化化合物的药理和毒理特征.
- 在药物开发过程中,应将素键纳入膜分离模型.
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