神经类固醇和抗药调节TRPM3的分子基础
Ying Yin1, Cheon-Gyu Park1, Shasha Feng2
1Department of Biochemistry, Duke University School of Medicine, Durham, NC, USA.
化EM结构揭示了神经类固醇,像普里米这样的抑制剂以及疾病突变如何影响TRPM3通道. 这为开发新的神经疾病治疗提供了对TRPM3关口的见解.
科学领域:
- 神经科学是一个神经科学.
- 结构生物学 结构生物学
- 离子通道生理学 离子通道生理学
背景情况:
- 短暂受体潜在通道子家族M成员3 (TRPM3) 是一个Ca2+透的阴离子通道,参与恶感.
- 在TRPM3中获得功能突变与神经发育障碍有关.
- 与TRPM3相关的神经疾病的治疗潜力显示出TRPM3抑制剂普里米.
研究的目的:
- 阐明由神经类固醇,抑制剂和疾病突变引起的TRPM3通道调节的基础结构机制.
- 为了确定激活剂和抑制剂的特定结合部位.
- 为理解TRPM3门口和开发有针对性的治疗提供结构基础.
主要方法:
- 低温电子显微镜 (cryo-EM) 用于确定小鼠TRPM3.3的结构.
- 结构与胆固醇半酸盐,神经类固醇孕醇硫酸盐 (PregS),抑制剂普里米和合成激动剂CIM 0216.6复合得到.
主要成果:
- 在关键调节器的存在下,小鼠TRPM3的详细冷电磁结构得到了解决.
- 确定了PregS,普里米和CIM 0216的特定结合部位.
- 获得了关于疾病相关突变和这些调节器如何影响TRPM3通道关口的见解.
结论:
- 该研究提供了对TRPM3通道功能和调制的高分辨率结构洞察.
- 了解这些相互作用对于设计针对神经疾病的TRPM3的新药至关重要.
- 这项工作为针对TRPM3相关疾病的基于结构的药物发现奠定了基础.
更多相关视频
12:09Yeast Luminometric and Xenopus Oocyte Electrophysiological Examinations of the Molecular Mechanosensitivity of TRPV4
Published on: December 31, 2013
08:27Expression and Purification of the Human Lipid-sensitive Cation Channel TRPC3 for Structural Determination by Single-particle Cryo-electron Microscopy
Published on: January 7, 2019
相关概念视频
Ligand-Gated Ion Channel Receptor: Gating Mechanism
Neurochemical Transmission: Sites of Drug Action
Ligand-gated Ion Channels
Three Subfamilies of Ligand-gated Ion Channels
Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that...
Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
Regulation of Nuclear Protein Sorting
