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中枢神经系统G-蛋白激活的内向整流型钾通道

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摘要 G 蛋白激活内向整流型钾通道 (GIRK)是内向整流钾通道超家族的七个成员之一 ,是目前发现的唯一能够与G 蛋白的 βγ亚基直接相互作用而被激活的离子通道。GIRK在中枢神经系统内广泛分布 ,具有维持神经元的静息膜电位、调节神经元的兴奋性和神经递质释放的重要作用。GIRK2通道异常的Weaver小鼠和GIRK2基因敲除的小鼠均有癫痫发作 ,且Weaver小鼠还表现出神经发育异常 ,因此深入研究GIRK在中枢神经系统的生理和病理意义 。
出处 《国外医学(生理病理科学与临床分册)》 2002年第2期165-167,共3页 Foreign Medical Sciences(Pathophysiology and Clinical Medicine)
基金 国家自然科学基金 :3 0 0 70 2 43 国家 973项目资助课题 :G1 9990 5 40 0 0
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