Results 41 to 50 of about 57,423 (108)

Potential roles of voltage-gated ion channel disruption in Tuberous Sclerosis Complex

open access: yesFrontiers in Molecular Neuroscience
Tuberous Sclerosis Complex (TSC) is a lynchpin disorder, as it results in overactive mammalian target of rapamycin (mTOR) signaling, which has been implicated in a multitude of disease states.
Hailey X. Egido-Betancourt   +2 more
doaj   +1 more source

Ionic selectivity and thermal adaptations within the voltage-gated sodium channel family of alkaliphilic Bacillus

open access: yeseLife, 2014
Entry and extrusion of cations are essential processes in living cells. In alkaliphilic prokaryotes, high external pH activates voltage-gated sodium channels (Nav), which allows Na+ to enter and be used as substrate for cation/proton antiporters ...
Paul G DeCaen   +4 more
doaj   +1 more source

Structural modeling of ion channels using AlphaFold2, RoseTTAFold2, and ESMFold

open access: yesChannels
Ion channels play key roles in human physiology and are important targets in drug discovery. The atomic-scale structures of ion channels provide invaluable insights into a fundamental understanding of the molecular mechanisms of channel gating and ...
Phuong Tran Nguyen   +5 more
doaj   +1 more source

Propranolol blocks cardiac and neuronal voltage-gated sodium channels

open access: yesFrontiers in Pharmacology, 2010
Propranolol is a widely-used, nonselective ß-adrenergic receptor antagonist with proven efficacy in treating cardiovascular disorders and in the prevention of migraine headaches.
Dao W Wang   +7 more
doaj   +1 more source

Voltage-Dependent Ion Channels in Vascular Endothelial Cells: An Unexpected Signaling Pathway in Non-Excitable Cells

open access: yesBiomedicines
Voltage-gated ion channels (VGICs) are traditionally associated with electrically excitable cells; however, increasing evidence indicates that they are also expressed in non-excitable cells, including vascular endothelial cells.
Francesco Moccia, Teresa Soda
doaj   +1 more source

Ciguatoxins: Cyclic Polyether Modulators of Voltage-gated Iion Channel Function

open access: yesMarine Drugs, 2006
Ciguatoxins are cyclic polyether toxins, derived from marine dinoflagellates, which are responsible for the symptoms of ciguatera poisoning. Ingestion of tropical and subtropical fin fish contaminated by ciguatoxins results in an illness characterised by
Richard J. Lewis, Graham M. Nicholson
doaj   +1 more source

Voltage-gated sodium channels assemble and gate as dimers

open access: yesNature Communications, 2017
Voltage-gated sodium channels are expressed in excitable tissues and mutations have been linked to cardiac arrhythmias and channelopathies. Here the authors show that the sodium channel α-subunits interact to form a dimer and gate as dimer and that this ...
Jérôme Clatot   +9 more
doaj   +1 more source

Molecular and functional characterization of voltage-gated sodium channels in human sperm

open access: yesReproductive Biology and Endocrinology, 2009
Background We have investigated the expression of voltage-gated sodium channels in human spermatozoa and characterized their role in sperm motility. Methods Freshly ejaculated semen was collected from thirty normozoospermic human donors, with each donor ...
Cejudo-Román Antonio   +5 more
doaj   +1 more source

Dual receptor-sites reveal the structural basis for hyperactivation of sodium channels by poison-dart toxin batrachotoxin

open access: yesNature Communications
The poison dart toxin batrachotoxin is exceptional for its high potency and toxicity, and for its multifaceted modification of the function of voltage-gated sodium channels.
Lige Tonggu   +8 more
doaj   +1 more source

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