Results 21 to 30 of about 1,076,274 (226)

Involvement of spinal G-protein inwardly rectifying potassium (GIRK) channels in the enhanced antinociceptive effects of the activation of both μ-opioid and cannabinoid CB1 receptors

open access: yesJournal of Pharmacological Sciences, 2022
Neuropathic pain is refractory to opioid analgesics. Since there are functional linkages between μ-opioid receptors (MOR) and cannabinoid receptors (CBR), the present study was designed to investigate the interactions between MOR and CB1R based on ...
Yoshinori Takemura   +6 more
doaj   +1 more source

CO2-dependent opening of an inwardly rectifying K+ channel [PDF]

open access: yes, 2011
CO2 chemosensing is a vital function for the maintenance of life that helps to control acid–base balance. Most studies have reported that CO2 is measured via its proxy, pH. Here we report an inwardly rectifying channel, in outside-out excised patches
Dale, Nicholas   +3 more
core   +1 more source

INWARD RECTIFIERS AND THEIR REGULATION BY ENDOGENOUS POLYAMINES

open access: yesFrontiers in Physiology, 2014
Inwardly-rectifying potassium (Kir) channels contribute to maintenance of the resting membrane potential and regulation of electrical excitation in many cell types.
Victoria A Baronas   +1 more
doaj   +1 more source

Potassium channels in prostate and colonic cancer [PDF]

open access: yes, 2007
Large conductance Ca2+-activated K+ channels in human prostate cancer The KCNMA1 gene encoding the alpha-subunit of BK channels is amplified and BK channel expression is enhanced in late-stage, metastatic and hormone-refractory human prostate cancer ...
Ousingsawat, Jiraporn
core   +1 more source

Structural insights into GIRK2 channel modulation by cholesterol and PIP2

open access: yesCell Reports, 2021
Summary: G-protein-gated inwardly rectifying potassium (GIRK) channels are important for determining neuronal excitability. In addition to G proteins, GIRK channels are potentiated by membrane cholesterol, which is elevated in the brains of people with ...
Yamuna Kalyani Mathiharan   +5 more
doaj   +1 more source

Alcohol modulation of G-protein-gated inwardly rectifying potassium channels: from binding to therapeutics

open access: yesFrontiers in Physiology, 2014
Alcohol (ethanol)-induced behaviors arise from direct interaction of alcohol with discrete protein cavities within brain proteins. Recent structural and biochemical studies have provided new insights into the mechanism of alcohol-dependent activation of ...
Karthik eBodhinathan, Paul A Slesinger
doaj   +1 more source

Structural mechanism underlying G protein family-specific regulation of G protein-gated inwardly rectifying potassium channel

open access: yesNature Communications, 2019
Opening of G protein-gated inwardly rectifying potassium channels (GIRK) is coupled to the activation of a GPCR. Here the authors use NMR and cell-based BRET assays to gain insights into the mechanisms underlying family-specific activation and find that ...
Hanaho Kano   +7 more
doaj   +1 more source

Why do platelets express K+ channels?

open access: yesPlatelets, 2021
Potassium ions have widespread roles in cellular homeostasis and activation as a consequence of their large outward concentration gradient across the surface membrane and ability to rapidly move through K+-selective ion channels.
Joy R Wright, Martyn P. Mahaut-Smith
doaj   +1 more source

Novel KCNJ10 Compound Heterozygous Mutations Causing EAST/SeSAME-Like Syndrome Compromise Potassium Channel Function

open access: yesFrontiers in Genetics, 2019
Inwardly rectifying K+ channel 4.1 (Kir4.1), encoded by KCNJ10, is a member of the inwardly rectifying potassium channel family. In the brain, Kir4.1 is predominant in astrocytic glia and accounts for the spatial buffering of K+ released by neurons ...
Hongfeng Zhang   +14 more
doaj   +1 more source

What have we learned from two-pore potassium channels? Their molecular configuration and function in the human heart [PDF]

open access: yes, 2012
Two-pore domain potassium channels (K2P) control excitability, stabilize the resting membrane potential below firing threshold, and accelerate repolarisation in different cells.
Szalontai, B.   +23 more
core   +2 more sources

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