Structural correlates of selectivity and inactivation in potassium channels.
Structural correlates of selectivity and inactivation in potassium channels.
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DOI:
10.1016/j.bbamem.2011.09.007
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发表时间:
2012-02
影响因子:
3.4
通讯作者:
Nimigean, Crina M.
中科院分区:
文献类型:
--
作者:
McCoy, Jason G.;Nimigean, Crina M.
Potassium channels are involved in a tremendously diverse range of physiological applications requiring distinctly different functional properties. Not surprisingly, the amino acid sequences for these proteins are diverse as well, except for the region that has been ordained the “selectivity filter”. The goal of this review is to examine our current understanding of the role of the selectivity filter and regions adjacent to it in specifying selectivity as well as its role in gating/inactivation and possible mechanisms by which these processes are coupled. Our working hypothesis is that an amino acid network behind the filter modulates selectivity in channels with the same signature sequence while at the same time affecting channel inactivation properties.
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