Binding of cardiolipin to the KcsA channel at the membrane outer leaflet allosterically opens the inner gate
Binding of cardiolipin to the KcsA channel at the membrane outer leaflet allosterically opens the inner gate
复制标题
心磷脂与膜外叶 KcsA 通道的结合以变构方式打开内门
DOI:
10.1101/2022.02.08.479071
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Matsumori Nobuaki
中科院分区:
文献类型:
--
作者:
Inada Masataka;Iwamoto Masayuki;Yoshida Norio;Oiki Shigetoshi;Matsumori Nobuaki
Membrane proteins embedded in the membrane undergo changes in their actions under the influence of membrane lipids. Here, we present a novel type of lipid action on the potassium channel KcsA fromStreptomyces lividans. Cardiolipin is present in various cellular membranes, including the host membrane of KcsA. Although the M0 domain, a nontransmembrane helix, is known to sense anionic lipids in the inner leaflet, we found that divalent anionic cardiolipin in the outer leaflet of the membrane interacts with positively charged residues, Arg64 and Arg89, on the extracellular side of the transmembrane domain. This binding propagates its action across the membrane toward the intracellular region of KcsA, thus, opening the inner gate. Such a long-range allosteric effect has not been found for channel–lipid interactions.
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影响因子:
64.8
作者:
Long, Stephen B.;Tao, Xiao;MacKinnon, Roderick
通讯作者:
MacKinnon, Roderick
影响因子:
--
作者:
Levitan, Irena;Fang, Yun;Rosenhouse-Dantsker, Avia;Romanenko, Victor
通讯作者:
Romanenko, Victor
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
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通讯作者:
Masataka Inada,Masanao Kinoshita,Nobuaki Matsumori
DOI:
10.1201/b18325-8
发表时间:
2020
期刊:
Carbon Nanostructures
影响因子:
--
作者:
K. Sridharan;B. Srinivasu;Vikramkumar Pudi
通讯作者:
Vikramkumar Pudi
影响因子:
2.9
作者:
Heginbotham, L;Odessey, E;Miller, C
通讯作者:
Miller, C