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关于向内泵送质子的视紫红质的结构机制
南极视色素(AntR)的晶体结构揭示其具有独特的长C末端α螺旋,覆盖质子传导路径,影响内质子泵送效率。AntR与已知的XeRs和SzRs在跨膜α螺旋和腔体结构上差异显著,为比较 inward proton pump 和 outward pump 提供新结构依据。该结构解析深化了对SzR类质子传输机制的 ...
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