开发共价化学基因 K2P 通道激活剂

IF 6.6 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY
Parker E. Deal , Haerim Lee , Abhisek Mondal , Marco Lolicato , Philipe Ribeiro Furtado de Mendonça , Holly Black , Seil Jang , Xochina El-Hilali , Clifford Bryant , Ehud Y. Isacoff , Adam R. Renslo , Daniel L. Minor Jr.
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引用次数: 0

摘要

K2P 钾通道通过影响大脑、心血管系统、免疫细胞和感觉器官中的细胞静息膜电位来调节兴奋性。尽管它们在麻醉、心律失常、疼痛、高血压、睡眠和偏头痛中发挥着重要作用,但控制 K2P 功能的能力仍然有限。在这里,我们描述了一种称为 CATKLAMP(共价激活 TREK 家族 K+ 通道以钳制膜电位)的化学遗传学策略,该策略利用了 K2P 调制剂口袋位点的发现,该位点可与 TREK 亚家族小分子激活剂 ML335 的亲电子衍生物发生反应,从而不可逆地激活通道。我们的研究表明,CATKLAMP 可用于探测 K2P 功能的基本方面,作为抑制神经元发射的开关,并适用于所有 TREK 亚家族成员。总之,我们的研究结果体现了一种改变 K2P 通道活性的方法,它将促进 K2P 功能的分子和系统水平研究,并有助于寻找新的 K2P 调节剂。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Development of covalent chemogenetic K2P channel activators

Development of covalent chemogenetic K2P channel activators

K2P potassium channels regulate excitability by affecting cellular resting membrane potential in the brain, cardiovascular system, immune cells, and sensory organs. Despite their important roles in anesthesia, arrhythmia, pain, hypertension, sleep, and migraine, the ability to control K2P function remains limited. Here, we describe a chemogenetic strategy termed CATKLAMP (covalent activation of TREK family K+ channels to clamp membrane potential) that leverages the discovery of a K2P modulator pocket site that reacts with electrophile-bearing derivatives of a TREK subfamily small-molecule activator, ML335, to activate the channel irreversibly. We show that CATKLAMP can be used to probe fundamental aspects of K2P function, as a switch to silence neuronal firing, and is applicable to all TREK subfamily members. Together, our findings exemplify a means to alter K2P channel activity that should facilitate molecular and systems level studies of K2P function and enable the search for new K2P modulators.

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来源期刊
Cell Chemical Biology
Cell Chemical Biology Biochemistry, Genetics and Molecular Biology-Molecular Medicine
CiteScore
14.70
自引率
2.30%
发文量
143
期刊介绍: Cell Chemical Biology, a Cell Press journal established in 1994 as Chemistry & Biology, focuses on publishing crucial advances in chemical biology research with broad appeal to our diverse community, spanning basic scientists to clinicians. Pioneering investigations at the chemistry-biology interface, the journal fosters collaboration between these disciplines. We encourage submissions providing significant conceptual advancements of broad interest across chemical, biological, clinical, and related fields. Particularly sought are articles utilizing chemical tools to perturb, visualize, and measure biological systems, offering unique insights into molecular mechanisms, disease biology, and therapeutics.
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