Results 11 to 20 of about 42,976 (163)

Central cavity dehydration as a gating mechanism of potassium channels

open access: yesNature Communications, 2023
The hydrophobic gating model, in which ion permeation is inhibited by the hydrophobicity, rather than a physical occlusion of the nanopore, functions in various ion channels including potassium channels.
Ruo-Xu Gu, Bert L. de Groot
doaj   +1 more source

Artificial modulation of the gating behavior of a K+ channel in a KvAP-DNA chimera. [PDF]

open access: yesPLoS ONE, 2011
We present experiments where the gating behavior of a voltage-gated ion channel is modulated by artificial ligand binding. We construct a channel-DNA chimera with the KvAP potassium channel reconstituted in an artificial membrane.
Andrew Wang, Giovanni Zocchi
doaj   +1 more source

Ion channels gated by heat [PDF]

open access: yesProceedings of the National Academy of Sciences, 1999
All animals need to sense temperature to avoid hostile environments and to regulate their internal homeostasis. A particularly obvious example is that animals need to avoid damagingly hot stimuli. The mechanisms by which temperature is sensed have until recently been mysterious, but in the last couple of years, we have begun to understand how ...
CESARE P.   +3 more
openaire   +2 more sources

Interplay between Gating and Block of Ligand-Gated Ion Channels

open access: yesBrain Sciences, 2020
Drugs that inhibit ion channel function by binding in the channel and preventing current flow, known as channel blockers, can be used as powerful tools for analysis of channel properties.
Matthew B. Phillips   +2 more
doaj   +1 more source

Force From Filaments: The Role of the Cytoskeleton and Extracellular Matrix in the Gating of Mechanosensitive Channels

open access: yesFrontiers in Cell and Developmental Biology, 2022
The senses of proprioception, touch, hearing, and blood pressure on mechanosensitive ion channels that transduce mechanical stimuli with high sensitivity and speed. This conversion process is usually called mechanotransduction.
Yu-Chia Chuang   +3 more
doaj   +1 more source

Voltage Gated Lipid Ion Channels [PDF]

open access: yesBiophysical Journal, 2013
10 pages, 7 figures - Strongly revised version compared to first version.
Blicher, Andreas   +1 more
openaire   +7 more sources

A new polymodal gating model of the proton-activated chloride channel.

open access: yesPLoS Biology, 2023
The proton-activated chloride (PAC) channel plays critical roles in ischemic neuron death, but its activation mechanisms remain elusive. Here, we investigated the gating of PAC channels using its novel bifunctional modulator C77304.
Piao Zhao   +13 more
doaj   +1 more source

Bubbles, Gating, and Anesthetics in Ion Channels [PDF]

open access: yesBiophysical Journal, 2008
We suggest that bubbles are the bistable hydrophobic gates responsible for the on-off transitions of single channel currents. In this view, many types of channels gate by the same physical mechanism-dewetting by capillary evaporation-but different types of channels use different sensors to modulate hydrophobic properties of the channel wall and thereby
Roth, R.   +3 more
openaire   +3 more sources

Structural and molecular insight into the pH-induced low-permeability of the voltage-gated potassium channel Kv1.2 through dewetting of the water cavity.

open access: yesPLoS Computational Biology, 2020
Understanding the gating mechanism of ion channel proteins is key to understanding the regulation of cell signaling through these channels. Channel opening and closing are regulated by diverse environmental factors that include temperature, electrical ...
Juhwan Lee   +3 more
doaj   +1 more source

Effects of ionic strength on gating and permeation of TREK-2 K2P channels.

open access: yesPLoS ONE, 2021
In addition to the classical voltage-dependent behavior mediated by the voltage-sensing-domains (VSD) of ion channels, a growing number of voltage-dependent gating behaviors are being described in channels that lack canonical VSDs.
Linus J Conrad   +2 more
doaj   +1 more source

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