Results 31 to 40 of about 132,798 (291)

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

Ion channel gating: a first passage time analysis of the Kramers type [PDF]

open access: yes, 2001
The opening rate of voltage-gated potassium ion channels exhibits a characteristic, knee-like turnover where the common exponential voltage-dependence changes suddenly into a linear one.
Blatz   +12 more
core   +4 more sources

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

An evolutionarily-unique heterodimeric voltage-gated cation channel found in aphids [PDF]

open access: yes, 2015
We describe the identification in aphids of a unique heterodimeric voltage-gated sodium channel which has an atypical ion selectivity filter and, unusually for insect channels, is highly insensitive to tetrodotoxin.
Amey, Joanna S.   +9 more
core   +1 more source

Emerging Roles of L-Type Voltage-Gated and Other Calcium Channels in T Lymphocytes [PDF]

open access: yes, 2013
In T lymphocytes, calcium ion controls a variety of biological processes including development, survival, proliferation, and effector functions. These distinct and specific roles are regulated by different calcium signals, which are generated by various ...
Abdallah eBadou   +4 more
core   +2 more sources

Voltage-dependent gating of KCNH potassium channels lacking a covalent link between voltage-sensing and pore domains [PDF]

open access: yes, 2015
Voltage-gated channels open paths for ion permeation upon changes in membrane potential, but how voltage changes are coupled to gating is not entirely understood.
Barros de la Roza, Francisco   +8 more
core   +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

Voltage-dependent gating in a "voltage sensor-less" ion channel. [PDF]

open access: yesPLoS Biology, 2010
The voltage sensitivity of voltage-gated cation channels is primarily attributed to conformational changes of a four transmembrane segment voltage-sensing domain, conserved across many levels of biological complexity.
Harley T Kurata   +4 more
doaj   +1 more source

Comparison of Langevin and Markov channel noise models for neuronal signal generation

open access: yes, 2009
The stochastic opening and closing of voltage-gated ion channels produces noise in neurons. The effect of this noise on the neuronal performance has been modelled using either approximate or Langevin model, based on stochastic differential equations or ...
A. L. Hodgkin   +15 more
core   +1 more source

Home - About - Disclaimer - Privacy