Inhibition mechanism of NKCC1 involves the carboxyl terminus and long-range conformational coupling.
Inhibition mechanism of NKCC1 involves the carboxyl terminus and long-range conformational coupling.
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DOI:
10.1126/sciadv.abq0952
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发表时间:
2022-10-28
期刊:
影响因子:
13.6
通讯作者:
中科院分区:
文献类型:
--
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The Na-K-2Cl cotransporter-1 (NKCC1) is an electroneutral Na+-dependent transporter responsible for simultaneously translocating Na+, K+, and Cl− ions into cells. In human tissue, NKCC1 plays a critical role in regulating cytoplasmic volume, fluid intake, chloride homeostasis, and cell polarity. Here, we report four structures of human NKCC1 (hNKCC1), both in the absence and presence of loop diuretic (bumetanide or furosemide), using single-particle cryo–electron microscopy. These structures allow us to directly observe various novel conformations of the hNKCC1 dimer. They also reveal two drug-binding sites located at the transmembrane and cytosolic carboxyl-terminal domains, respectively. Together, our findings enable us to delineate an inhibition mechanism that involves a coupled movement between the cytosolic and transmembrane domains of hNKCC1. Inhibition of hNKCC1 involves a long-distance conformational coupling, leading to arrest of the cotransporter.
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DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
DOI:
10.1107/s2059798318006551
发表时间:
2018-06-01
期刊:
Acta crystallographica. Section D, Structural biology
影响因子:
--
作者:
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通讯作者:
Adams PD
DOI:
10.1107/s0907444909042073
发表时间:
2010-01
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Chen VB;Arendall WB 3rd;Headd JJ;Keedy DA;Immormino RM;Kapral GJ;Murray LW;Richardson JS;Richardson DC
通讯作者:
Richardson DC
影响因子:
2.1
作者:
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通讯作者:
Lee, MG
影响因子:
4.8
作者:
Li, Dailin;Jin, Taihao;Logothetis, Diomedes E.
通讯作者:
Logothetis, Diomedes E.