Results 31 to 40 of about 43,122 (263)

Markov state models of proton- and pore-dependent activation in a pentameric ligand-gated ion channel

open access: yeseLife, 2021
Ligand-gated ion channels conduct currents in response to chemical stimuli, mediating electrochemical signaling in neurons and other excitable cells.
Cathrine Bergh   +3 more
doaj   +1 more source

Gating Transition of Pentameric Ligand-Gated Ion Channels [PDF]

open access: yesBiophysical Journal, 2009
Pentameric ligand-gated ion channels are an important family of membrane proteins and play key roles in physiological processes, including signal transduction at chemical synapses. Here, we study the conformational changes associated with the opening and closing of the channel pore.
Zhu, F.   +1 more
openaire   +3 more sources

Ligand recognition and gating mechanism through three ligand-binding sites of human TRPM2 channel

open access: yeseLife, 2019
TRPM2 is critically involved in diverse physiological processes including core temperature sensing, apoptosis, and immune response. TRPM2’s activation by Ca2+ and ADP ribose (ADPR), an NAD+-metabolite produced under oxidative stress and neurodegenerative
Yihe Huang, Becca Roth, Wei Lü, Juan Du
doaj   +1 more source

Transcending Markov: non-Markovian rate processes of thermosensitive TRP ion channels

open access: yesRoyal Society Open Science, 2023
The Markov state model (MSM) is a popular theoretical tool for describing the hierarchy of time scales involved in the function of many proteins especially ion channel gating. An MSM is a particular case of the general non-Markovian model, where the rate
Yuval Ben-Abu   +2 more
doaj   +1 more source

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

Role of the Ion Channel Extracellular Collar in AMPA Receptor Gating

open access: yesScientific Reports, 2017
AMPA subtype ionotropic glutamate receptors mediate fast excitatory neurotransmission and are implicated in numerous neurological diseases. Ionic currents through AMPA receptor channels can be allosterically regulated via different sites on the receptor ...
Maria V. Yelshanskaya   +3 more
doaj   +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

The ligand gated ion channel database [PDF]

open access: yesNucleic Acids Research, 1999
The ligand gated ion channels (LGICs) are ionotropic receptors to neurotransmitters. Their physiological effect is carried out by the opening of an ionic channel upon binding of a particular neurotransmitter. These LGICs constitute superfamilies of receptors formed by homologous subunits.
Nicolas Le Novère, Jean-Pierre Changeux
openaire   +2 more sources

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