A biomimetic chiral-driven ionic gate constructed by pillar[6]arene-based host–guest systems
Nature 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
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Optical control of PIEZO1 channels
Nature 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
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Multiple solutions of steady-state Poisson-Nernst-Planck equations with steric effects
, 2014 Experiments measuring currents through single protein channels show unstable currents. Channels switch between 'open' or 'closed' states in a spontaneous stochastic process called gating.
Eisenberg, Bob, Lin, Tai-Chia
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Biophysical Effects Of Ion Concenteration On The Affinity Between Nanopore, OmpF Lumen and Passing Nucleotide [PDF]
, 2010 OmpF an outer-membrane porin channel of _E. Coli_ posses beta-barrel structure, whose conductivity and gating phenomena are affected by changes in pH, salt concentration and so on. The distribution of amino acids in OmpF induces a non homologous electric
Hamid Mobasheri, Saeid Hadi
core +2 more sources
Distinct gating mechanisms revealed by the structures of a multi-ligand gated K+ channel
eLife, 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
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A binding-block ion selective mechanism revealed by a Na/K selective channel
Protein & 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
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Gain of function mutants: Ion channels and G protein-coupled receptors [PDF]
, 2000 Many ion channels and receptors display striking phenotypes for gain-of-function mutations but milder phenotypes for null mutations. Gain of molecular function can have several mechanistic bases: selectivity changes, gating changes including constitutive
Karschin, Andreas, Lester, Henry A.
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Proton block of proton-activated TRPV1 current. [PDF]
, 2015 The TRPV1 cation channel is a polymodal nociceptor that is activated by heat and ligands such as capsaicin and is highly sensitive to changes in extracellular pH. In the body core, where temperature is usually stable and capsaicin is normally absent, H(+)
Lee, Bo Hyun, Zheng, Jie
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Cell surface interactome analysis identifies TSPAN4 as a negative regulator of PD‐L1 in melanoma
Molecular Oncology, EarlyView.Using cell surface proximity biotinylation, we identified tetraspanin TSPAN4 within the PD‐L1 interactome of melanoma cells. TSPAN4 negatively regulates PD‐L1 expression and lateral mobility by limiting its interaction with CMTM6 and promoting PD‐L1 degradation.
Guus A. Franken +7 more
wiley +1 more source
Molecular mechanism of GIRK2 channel gating modulated by cholesteryl hemisuccinate
Frontiers in PhysiologyCholesterol, an essential lipid of cell membranes, regulates G protein-gated inwardly rectifying potassium (GIRK) channel activity. Previous studies have shown that cholesterol activates GIRK2 homotetrameric channels, which are expressed in dopaminergic ...
Meng Cui +8 more
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