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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Voltage-controlled gating in a large conductance Ca~2+-sensitive K~+channel (hslo)
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Voltage-controlled gating in a large conductance Ca~2+-sensitive K~+channel (hslo)

机译:大电导Ca〜2 +敏感K〜+通道中的电压控制门控(hslo)

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摘要

Large conductance calcium- and voltage- sensitive K~+ (MaxiK) channels share properties of voltage- and ligand-gated ion channels. In voltage-gated channels, membrane depolarization promotes the displacement of charged residues contained in the voltage sensor (S4 region) inducing gating currents and pore opening. In MaxiK chan- nels, both voltage and micromolar internal Ca~2+ favor pore opening.
机译:大电导的钙和电压敏感的K〜+(MaxiK)通道具有电压和配体门控离子通道的特性。在电压门控通道中,膜去极化会促进电压传感器(S4区域)中包含的带电残留物的位移,从而引起门控电流和开孔。在MaxiK通道中,电压和微摩尔内部Ca〜2 +都有利于开孔。

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