摘要
小电导的钙激活钾通道 (SK)具有K+ 选择性 ,Ca2 + 高敏性和电压不依赖等特性 ,广泛分布在神经元上。参与产生慢后超级化电位 ,通过放电频率适应影响神经元的放电功能。SK通道主要包括SK1,SK2 ,SK3 3种通道 ,通道活性受Ca2 + ,钙调蛋白 (CaM )以及一些神经递质的调节。SK通道的改变可能与学习记忆失调 。
Small conductance Ca 2+ activated potassium channels ( SK channels) are potassium selective , voltage independent, and Ca 2+ high sensitivity. SK channels are widely distributed in neurons. SK underlie the slow afterhyperpolarization , which regulate the fire of neurons by spike frequency adaptation. Three mammalian SK channels (SK 1, SK 2, SK 3) have been cloned . Ca 2+ , CaM and neurotransimitters involve in the gating of these channels. The changes of these channels may result in memory, neuromuscular disorder and schizophrenia.
出处
《中国药理学通报》
CAS
CSCD
北大核心
2002年第5期486-489,共4页
Chinese Pharmacological Bulletin
基金
国家重大基础项目研究计划资助课题(NoG19980 5 110 6)
国家杰出青年科学基金资助课题 (No 3 942 5 0 14 )
