Structure, function, and modification of the voltage sensor in voltage-gated ion channels

SI Börjesson, F Elinder - Cell biochemistry and biophysics, 2008 - Springer
Voltage-gated ion channels are crucial for both neuronal and cardiac excitability. Decades
of research have begun to unravel the intriguing machinery behind voltage sensitivity …

Potassium channel phosphorylation in excitable cells: providing dynamic functional variability to a diverse family of ion channels

KS Park, JW Yang, E Seikel, JS Trimmer - Physiology, 2008 - journals.physiology.org
Phosphorylation of potassium channels affects their function and plays a major role in
regulating cell physiology. Here, we review previous studies of potassium channel …

The Kv2.1 K+ channel targets to the axon initial segment of hippocampal and cortical neurons in culture and in situ

PD Sarmiere, CM Weigle, MM Tamkun - BMC neuroscience, 2008 - Springer
Abstract Background The Kv2. 1 delayed-rectifier K+ channel regulates membrane
excitability in hippocampal neurons where it targets to dynamic cell surface clusters on the …

Dynamic regulation of the Kv2. 1 voltage-gated potassium channel during brain ischemia through neuroglial interaction

H Misonou, SM Thompson, X Cai - Journal of Neuroscience, 2008 - Soc Neuroscience
The physiological significance of neuroglial interactions in the CNS has been emphasized in
neurological conditions such as epilepsy and brain ischemia. The Kv2. 1 voltage-gated …

Formation of Kv2. 1‐FAK complex as a mechanism of FAK activation, cell polarization and enhanced motility

JF Wei, L Wei, X Zhou, ZY Lu, K Francis… - Journal of cellular …, 2008 - Wiley Online Library
Focal adhesion kinase (FAK) plays key roles in cell adhesion and migration. We now report
that the delayed rectifier Kv2. 1 potassium channel, through its LD‐like motif in N‐terminus …

Interdomain cytoplasmic interactions govern the intracellular trafficking, gating, and modulation of the Kv2. 1 channel

DP Mohapatra, DF Siino, JS Trimmer - Journal of Neuroscience, 2008 - Soc Neuroscience
Voltage-gated potassium (Kv) channels comprise four transmembrane α subunits, often
associated with cytoplasmic β subunits that impact channel expression and function. Here …

Localization and mobility of the delayed-rectifer K+ channel Kv2.1 in adult cardiomyocytes

KMS O'Connell, JD Whitesell… - American Journal of …, 2008 - journals.physiology.org
The delayed-rectifier voltage-gated K+ channel (Kv) 2.1 underlies the cardiac slow K+
current in the rodent heart and is particularly interesting in that both its function and …

Surface expression and distribution of voltage-gated potassium channels in neurons

L McKeown, L Swanton, P Robinson… - Molecular membrane …, 2008 - Taylor & Francis
The last decade has witnessed an exponential increase in interest in one of the great
mysteries of nerve cell biology: Specifically, how do neurons know where to place the ion …

Single particle image reconstruction of the human recombinant Kv2. 1 channel

B Adair, R Nunn, S Lewis, I Dukes, L Philipson… - Biophysical journal, 2008 - cell.com
Kv2. 1 channels are widely expressed in neuronal and endocrine cells and generate slowly
activating K+ currents, which contribute to repolarization in these cells. Kv2. 1 is expressed …

Identification of an evolutionarily conserved extracellular threonine residue critical for surface expression and its potential coupling of adjacent voltage-sensing and …

L Mckeown, MP Burnham, C Hodson… - Journal of Biological …, 2008 - ASBMB
The dynamic expression of voltage-gated potassium channels (Kvs) at the cell surface is a
fundamental factor controlling membrane excitability. In exploring possible mechanisms …