Results 31 to 40 of about 65,501 (244)

Characterization of Eag1 channel lateral mobility in rat hippocampal cultures by single-particle-tracking with quantum dots. [PDF]

open access: yesPLoS ONE, 2010
Voltage-gated ion channels are main players involved in fast synaptic events. However, only slow intracellular mechanisms have so far been described for controlling their localization as real-time visualization of endogenous voltage-gated channels at ...
David Gómez-Varela   +8 more
doaj   +1 more source

Functional reconstitution of a voltage-gated potassium channel in giant unilamellar vesicles. [PDF]

open access: yesPLoS ONE, 2011
Voltage-gated ion channels are key players in cellular excitability. Recent studies suggest that their behavior can depend strongly on the membrane lipid composition and physical state. In vivo studies of membrane/channel and channel/channel interactions
Sophie Aimon   +5 more
doaj   +1 more source

Contribution of Axon Initial Segment Structure and Channels to Brain Pathology

open access: yesCells, 2023
Brain channelopathies are a group of neurological disorders that result from genetic mutations affecting ion channels in the brain. Ion channels are specialized proteins that play a crucial role in the electrical activity of nerve cells by controlling ...
Juan José Garrido
doaj   +1 more source

Dual Regulation of Voltage-Sensitive Ion Channels by PIP2

open access: yesFrontiers in Pharmacology, 2012
Over the past 16 years, there has been an impressive number of ion channels shown to be sensitive to the major phosphoinositide in the plasma membrane, phosphatidilinositol 4,5-bisphosphate (PIP2). Among them are voltage-gated channels, which are crucial
Aldo A Rodríguez Menchaca   +3 more
doaj   +1 more source

Hysteretic Behavior in Voltage-Gated Channels

open access: yesFrontiers in Pharmacology, 2020
An ever-growing body of evidence has shown that voltage-gated ion channels are likely molecular systems that display hysteresis in their activity. This phenomenon manifests in the form of dynamic changes in both their voltage dependence of activity and ...
Carlos A. Villalba-Galea, Alvin T. Chiem
doaj   +1 more source

Opposite effects of the S4-S5 linker and PIP2 on voltage-gated channel function: KCNQ1/KCNE1 and other channels

open access: yesFrontiers in Pharmacology, 2012
Voltage-gated potassium (Kv) channels are tetramers, each subunit presenting six transmembrane segments (S1-S6), with each S1-S4 segments forming a voltage-sensing domain (VSD) and the four S5-S6 forming both the conduction pathway and its gate.
Frank S Choveau   +17 more
doaj   +1 more source

Photocontrol of Voltage-Gated Ion Channel Activity by Azobenzene Trimethylammonium Bromide in Neonatal Rat Cardiomyocytes. [PDF]

open access: yesPLoS ONE, 2016
The ability of azobenzene trimethylammonium bromide (azoTAB) to sensitize cardiac tissue excitability to light was recently reported. The dark, thermally relaxed trans- isomer of azoTAB suppressed spontaneous activity and excitation propagation speed ...
Sheyda R Frolova   +4 more
doaj   +1 more source

A Sea Anemone Lebrunia neglecta Venom Fraction Decreases Boar Sperm Cells Capacitation: Possible Involvement of HVA Calcium Channels

open access: yesToxins, 2022
Sea anemones produce venoms characterized by a complex mixture of low molecular weight compounds, proteins and peptides acting on voltage-gated ion channels. Mammal sperm cells, like neurons, are characterized by their ion channels. Calcium channels seem
Fernando Lazcano-Pérez   +12 more
doaj   +1 more source

Cnidarian Toxins Acting on Voltage-Gated Ion Channels

open access: yesMarine Drugs, 2006
: Voltage-gated ion channels generate electrical activity in excitable cells. As such, they are essential components of neuromuscular and neuronal systems, and are targeted by toxins from a wide variety of phyla, including the cnidarians. Here, we review
Robert M. Greenberg, Shanta M. Messerli
doaj   +1 more source

Voltage-Gated Potassium Channels as Regulators of Cell Death

open access: yesFrontiers in Cell and Developmental Biology, 2020
Ion channels allow the flux of specific ions across biological membranes, thereby determining ion homeostasis within the cells. Voltage-gated potassium-selective ion channels crucially contribute to the setting of the plasma membrane potential, to volume
Magdalena Bachmann   +9 more
doaj   +1 more source

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