Probing the cavity of the slow inactivated conformation of shaker potassium channels.
Probing the cavity of the slow inactivated conformation of shaker potassium channels.
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DOI:
10.1085/jgp.200709758
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发表时间:
2007-05
期刊:
影响因子:
--
通讯作者:
Deutsch C
中科院分区:
文献类型:
--
作者:
Panyi G;Deutsch C
Slow inactivation involves a local rearrangement of the outer mouth of voltage-gated potassium channels, but nothing is known regarding rearrangements in the cavity between the activation gate and the selectivity filter. We now report that the cavity undergoes a conformational change in the slow-inactivated state. This change is manifest as altered accessibility of residues facing the aqueous cavity and as a marked decrease in the affinity of tetraethylammonium for its internal binding site. These findings have implications for global alterations of the channel during slow inactivation and putative coupling between activation and slow-inactivation gates.
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影响因子:
16.2
作者:
Larsson, HP;Baker, OS;Isacoff, EY
通讯作者:
Isacoff, EY
DOI:
10.1085/jgp.118.2.207
发表时间:
2001-08
期刊:
The Journal of general physiology
影响因子:
--
作者:
Crouzy S;Bernèche S;Roux B
通讯作者:
Roux B
影响因子:
3.4
作者:
HEGINBOTHAM, L;MACKINNON, R
通讯作者:
MACKINNON, R
影响因子:
3.8
作者:
Holmgren, M;Smith, PL;Yellen, G
通讯作者:
Yellen, G
影响因子:
16.2
作者:
Liu, Y;Jurman, ME;Yellen, G
通讯作者:
Yellen, G