Structural basis for KV7.1/KCNEx interactions in the IKs channel complex
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Structural basis for KV7.1/KCNEx interactions in the IKs channel complex. / Lundby, Alicia; Tseng, Gea-Ny; Schmitt, Nicole.
I: Heart Rhythm, Bind 7, Nr. 5, 2010, s. 708-713.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
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TY - JOUR
T1 - Structural basis for KV7.1/KCNEx interactions in the IKs channel complex
AU - Lundby, Alicia
AU - Tseng, Gea-Ny
AU - Schmitt, Nicole
N1 - Copyright © 2009. Published by Elsevier Inc.
PY - 2010
Y1 - 2010
N2 - The cardiac I(Ks) current is involved in action potential repolarization, where its primary function is to limit action potential prolongation during sympathetic stimulation. The I(Ks) channel is mainly composed of K(V)7.1 ion channels associated with KCNE1 auxiliary subunits. The availability of KCNE1 solution structure by NMR spectroscopy in conjunction with biochemical assays addressing K(V)7.1/KCNE1 residue interactions has provided new insights into the structural basis for K(V)7.1 modulation by KCNE1. Recent evidence further suggests that KCNE2 may associate with the K(V)7.1/KCNE1 channel complex and modulate its current amplitude. Here we review recent studies in this area, and discuss potential roles for multiple KCNE(x) subunits in I(Ks) generation and modulation as well as the clinical relevance of the new information.
AB - The cardiac I(Ks) current is involved in action potential repolarization, where its primary function is to limit action potential prolongation during sympathetic stimulation. The I(Ks) channel is mainly composed of K(V)7.1 ion channels associated with KCNE1 auxiliary subunits. The availability of KCNE1 solution structure by NMR spectroscopy in conjunction with biochemical assays addressing K(V)7.1/KCNE1 residue interactions has provided new insights into the structural basis for K(V)7.1 modulation by KCNE1. Recent evidence further suggests that KCNE2 may associate with the K(V)7.1/KCNE1 channel complex and modulate its current amplitude. Here we review recent studies in this area, and discuss potential roles for multiple KCNE(x) subunits in I(Ks) generation and modulation as well as the clinical relevance of the new information.
U2 - 10.1016/j.hrthm.2009.12.017
DO - 10.1016/j.hrthm.2009.12.017
M3 - Journal article
C2 - 20206317
VL - 7
SP - 708
EP - 713
JO - Heart Rhythm
JF - Heart Rhythm
SN - 1547-5271
IS - 5
ER -
ID: 18764458