Results 41 to 50 of about 2,447,449 (300)

Optical control of an ion channel gate [PDF]

open access: yesProceedings of the National Academy of Sciences, 2013
Significance Engineered light-sensitive ion channels offer the opportunity to govern electrical activity of neurons. To date, developed strategies have relied on specific actions on either ligand-binding or permeation pathways. Here we developed a unique and versatile method, in which the gating machinery of an ATP-activated channel ...
Lemoine, Damien   +9 more
openaire   +2 more sources

A nomenclature for ligand-gated ion channels [PDF]

open access: yesNeuropharmacology, 2009
The ligand-gated ion channels that participate in fast synaptic transmission comprise the nicotinic acetylcholine, 5-hydroxytryptamine3 (5-HT3), gamma-aminobutyric acidA (GABA(A)), glycine, ionotropic glutamate and P2X receptor families. A consistent and systematic nomenclature for the individual subunits that comprise these receptors and the receptors
Collingridge, GL   +3 more
openaire   +3 more sources

Stochastic ion channel gating in dendritic neurons: morphology dependence and probabilistic synaptic activation of dendritic spikes.

open access: yesPLoS Computational Biology, 2010
Neuronal activity is mediated through changes in the probability of stochastic transitions between open and closed states of ion channels. While differences in morphology define neuronal cell types and may underlie neurological disorders, very little is ...
Robert C Cannon   +2 more
doaj   +1 more source

An Unorthodox Mechanism Underlying Voltage Sensitivity of TRPV1 Ion Channel

open access: yesAdvanced Science, 2020
While the capsaicin receptor transient receptor potential vanilloid 1 (TRPV1) channel is a polymodal nociceptor for heat, capsaicin, and protons, the channel's responses to each of these stimuli are profoundly regulated by membrane potential, damping or ...
Fan Yang   +5 more
doaj   +1 more source

Piezo’s membrane footprint and its contribution to mechanosensitivity

open access: yeseLife, 2018
Piezo1 is an ion channel that gates open when mechanical force is applied to a cell membrane, thus allowing cells to detect and respond to mechanical stimulation.
Christoph A Haselwandter   +1 more
doaj   +1 more source

The selectivity, voltage-dependence and acid sensitivity of the tandem pore potassium channel TASK-1 : contributions of the pore domains [PDF]

open access: yes, 2007
We have investigated the contribution to ionic selectivity of residues in the selectivity filter and pore helices of the P1 and P2 domains in the acid sensitive potassium channel TASK-1.
Sutcliffe, M. J.   +14 more
core   +1 more source

Optical control of PIEZO1 channels

open access: yesNature Communications, 2023
PIEZO proteins are large, mechanically-activated trimeric ion channels. Here the authors report a light-gated mouse PIEZO1 channel, mOP1, whereby an azobenzene-based photoswitch covalently localised at the extracellular apex of a transmembrane helix ...
Francisco Andrés Peralta   +8 more
doaj   +1 more source

A biomimetic chiral-driven ionic gate constructed by pillar[6]arene-based host–guest systems

open access: yesNature Communications, 2018
Uptake and release of glucose is regulated by glucose-sensitive ion channels, but complexity of the system impedes investigation of the gating behavior under physiological conditions.
Yue Sun   +9 more
doaj   +1 more source

Polyunsaturated fatty acids modify the gating of Kv channels

open access: yesFrontiers in Pharmacology, 2012
Polyunsaturated fatty acids (PUFAs) have been reported to exhibit antiarrhythmic properties, which are attributed to their capability to modulate ion channels.
Cristina eMoreno   +4 more
doaj   +1 more source

A mechanism of CALHM1 ion channel gating. [PDF]

open access: yesAm J Physiol Cell Physiol
CALHM1 is a voltage- and extracellular Ca2+-regulated large-pore ion channel that plays an essential role in taste perception. The mechanisms that regulate the opening and the closing of the channel are unknown. Here we explored the role of the amino-terminal region of the channel in gating regulation.
Ma Z, Paudel U, Wang M, Foskett JK.
europepmc   +3 more sources

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