Results 41 to 50 of about 43,760 (261)

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

Site-directed spin labeling reveals pentameric ligand-gated ion channel gating motions. [PDF]

open access: yesPLoS Biology, 2013
Pentameric ligand-gated ion channels (pLGICs) are neurotransmitter-activated receptors that mediate fast synaptic transmission. In pLGICs, binding of agonist to the extracellular domain triggers a structural rearrangement that leads to the opening of an ...
Cosma D Dellisanti   +9 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

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

Cyclic Nucleotide-Gated Ion Channels [PDF]

open access: yesPhysiological Reviews, 2002
Cyclic nucleotide-gated (CNG) channels are nonselective cation channels first identified in retinal photoreceptors and olfactory sensory neurons (OSNs). They are opened by the direct binding of cyclic nucleotides, cAMP and cGMP. Although their activity shows very little voltage dependence, CNG channels belong to the superfamily of voltage-gated ion ...
U Benjamin, Kaupp, Reinhard, Seifert
openaire   +2 more sources

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   +3 more sources

Distinct gating mechanisms revealed by the structures of a multi-ligand gated K+ channel

open access: yeseLife, 2012
The gating ring-forming RCK domain regulates channel gating in response to various cellular chemical stimuli in eukaryotic Slo channel families and the majority of ligand-gated prokaryotic K+ channels and transporters.
Chunguang Kong   +7 more
doaj   +1 more source

A binding-block ion selective mechanism revealed by a Na/K selective channel

open access: yesProtein & Cell, 2017
Mechanosensitive (MS) channels are extensively studied membrane protein for maintaining intracellular homeostasis through translocating solutes and ions across the membrane, but its mechanisms of channel gating and ion selectivity are largely unknown ...
Jie Yu   +9 more
doaj   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

open access: yesFEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová   +2 more
wiley   +1 more source

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