Results 21 to 30 of about 456,361 (296)

Diverse Structural Features of Potassium Channels Characterized by Scorpion Toxins as Molecular Probes

open access: yesMolecules, 2019
Scorpion toxins are well-known as the largest potassium channel peptide blocker family. They have been successfully proven to be valuable molecular probes for structural research on diverse potassium channels. The potassium channel pore region, including
Yonghui Zhao   +4 more
doaj   +1 more source

Deletion of the Ca2+-activated potassium (BK) alpha-subunit but not the BK-beta-1-subunit leads to progressive hearing loss [PDF]

open access: yes, 2005
The large conductance voltage- and Ca2+-activated potassium (BK) channel has been suggested to play an important role in the signal transduction process of cochlear inner hair cells.
Arntz, Claudia   +18 more
core   +2 more sources

Effect of channel block on the spiking activity of excitable membranes in a stochastic Hodgkin-Huxley model [PDF]

open access: yes, 2004
The influence of intrinsic channel noise on the spontaneous spiking activity of poisoned excitable membrane patches is studied by use of a stochastic generalization of the Hodgkin-Huxley model.
Chow C C   +17 more
core   +2 more sources

POTASSIUM CHANNELS AS DRUGS TARGETS IN THERAPY OF CARDIOVASCULAR DESEASES: 25 YEARS LATER [PDF]

open access: yesSanamed, 2013
Potassium channels are the most variable ion channel group. They participate in numerous cardiovascular functions, for example regulation of vascular tone, maintenance of resting cardiac membrane potential and excitability of cardiac conduction tissue ...
Protić Dragana   +2 more
doaj   +2 more sources

hERG potassium channel blockage by scorpion toxin BmKKx2 enhances erythroid differentiation of human leukemia cells K562. [PDF]

open access: yesPLoS ONE, 2013
The hERG potassium channel can modulate the proliferation of the chronic myelogenous leukemic K562 cells, and its role in the erythroid differentiation of K562 cells still remains unclear.The hERG potassium channel blockage by a new 36-residue scorpion ...
Jian Ma   +5 more
doaj   +1 more source

Potassium channels: Novel targets for tumor diagnosis and chemoresistance

open access: yesFrontiers in Oncology, 2023
In recent years, the role of potassium channels in tumors has been intensively studied. Potassium channel proteins are widely involved in various physiological and pathological processes of cells.
Meizeng Li   +4 more
doaj   +1 more source

A functional role for small-conductance calcium-activated potassium channels in sensory pathways including nociceptive processes [PDF]

open access: yes, 2005
We investigated the role of small-conductance calcium-activated potassium (SK) and intermediate-conductance calcium-activated potassium channels in modulating sensory transmission from peripheral afferents into the rat spinal cord.
Bahia, PK   +7 more
core   +1 more source

Сardioprotective agents with biaromatic structure. Part 5. Potassium Kv1.5-channels blockers

open access: yesФармакокинетика и Фармакодинамика, 2023
The Kv1.5 potassium channel provides an ultra-rapid delayed rectifier potassium current, IKur, that acts selectively in human atrial cells. This makes selective Kv1.5 blockade a promising approach to control atrial arrhythmias without the adverse ...
G. V. Mokrov
doaj   +1 more source

Effects of Single Nucleotide Polymorphisms in Human KCNMA1 on BK Current Properties

open access: yesFrontiers in Molecular Neuroscience, 2019
BK Ca2+-activated K+ channels are important regulators of membrane excitability. Multiple regulatory mechanisms tailor BK current properties across tissues, such as alternative splicing, posttranslational modifications, and auxiliary subunits.
Amber E. Plante   +3 more
doaj   +1 more source

Putative Structural and Functional Coupling of the Mitochondrial BKCa Channel to the Respiratory Chain. [PDF]

open access: yesPLoS ONE, 2013
Potassium channels have been found in the inner mitochondrial membranes of various cells. These channels regulate the mitochondrial membrane potential, the matrix volume and respiration. The activation of these channels is cytoprotective.
Piotr Bednarczyk   +5 more
doaj   +1 more source

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