酸对TRP道的监管:结构时代的功能概述
1Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, New Jersey;
Annual review of physiology
|October 23, 2023
概括
酸,如酸4,5-双酸[PI(4,5) P2],是短暂受体潜能 (TRP) 离子通道的关键调节剂. 最近的结构研究揭示了这些脂质如何结合和控制TRP通道活性.
科学领域:
- 分子生物学分子生物学
- 生物化学 生物化学
- 结构生物学 结构生物学
背景情况:
- 暂时受体潜在 (TRP) 离子通道被各种刺激激活,包括物理和化学信号.
- 酸是TRP通道的唯一常见调节分子,与特定部位结合.
- 酸丁酸4,5-双酸盐[PI(4,5) P2]对于许多TRP通道的活性至关重要,而PI(3,5) P2则激活TRPML通道.
研究的目的:
- 审查类酸盐在调节TRP通道活性中的功能作用.
- 讨论分子洞察力对酸结合和TRP通道关门机制.
- 要突出最近冷电子显微镜研究的发现.
主要方法:
- 关于类化物对TRP通道调节的功能研究的文献综述.
- 分析最近的冷电子显微镜结构的TRP道与酸结合的分析.
- 整合结构和功能数据以阐明监管机制.
主要成果:
- PI(4,5) P2 作为 TRPM,TRPV5 和 TRPV6 通道的辅因子.
- PI(3,5) P2 特别激活细胞内TRPML通道.
- 对TRPV1-4和一些TRPC通道观察到PI{4,5) P2的复杂调节作用,包括激活和抑制.
- 低温-EM结构揭示了特定的氨酸结位,并告知了通道关门机制.
结论:
- 酸在TRP通道功能的调节中发挥着基本而多样化的作用.
- 结构生物学提供了对酸-TRP通道相互作用的分子基础的关键见解.
- 了解这些相互作用是破译TRP通道生理学和病理生理学的关键.
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