Results 21 to 30 of about 274,660 (308)

The response of the tandem pore potassium channel TASK-3 (K2P9.1) to voltage : gating at the cytoplasmic mouth [PDF]

open access: yes, 2009
Although the tandem pore potassium channel TASK-3 is thought to open and shut at its selectivity filter in response to changes of extracellular pH, it is currently unknown whether the channel also shows gating at its inner, cytoplasmic mouth through ...
Feng, J. F.   +23 more
core   +1 more source

Potassium channel regulation [PDF]

open access: yesEMBO reports, 2003
The sulphonylurea receptor (SUR) is a member of the ATP-binding cassette (ABC) family of membrane proteins. It functions as the regulatory subunit of the ATP-sensitive potassium (KATP) channel, which comprises SUR and Kir6.x proteins. Here, we review data demonstrating functional differences between the two nucleotide binding domains (NBDs) of SUR1. In
Campbell, J, Sansom, MS, Ashcroft, F
openaire   +2 more sources

Identification of putative potassium channel homologues in pathogenic protozoa [PDF]

open access: yes, 2012
K(+) channels play a vital homeostatic role in cells and abnormal activity of these channels can dramatically alter cell function and survival, suggesting that they might be attractive drug targets in pathogenic organisms.
Prole, D L   +3 more
core   +1 more source

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

Potassium channels as drugs targets in therapy of cardiovascular diseases: 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

The selectivity, voltage-dependence and acid sensitivity of the tandem pore potassium channel TASK-1 : contributions of the pore domains [PDF]

open access: yes, 2007
We have investigated the contribution to ionic selectivity of residues in the selectivity filter and pore helices of the P1 and P2 domains in the acid sensitive potassium channel TASK-1.
Sutcliffe, M. J.   +14 more
core   +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

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

Pulmonary vasoconstrictor action of KCNQ potassium channel blockers [PDF]

open access: yes, 2006
KCNQ channels have been widely studied in the nervous system, heart and inner ear, where they have important physiological functions. Recent reports indicate that KCNQ channels may also be expressed in portal vein where they are suggested to influence ...
Joshi, Shreena   +9 more
core   +1 more source

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