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貨期:
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用途:
For Research Use Only. Not for use in diagnostic or therapeutic procedures.
Associates with KCNQ2 or KCNQ5 to form a potassium channel with essentially identical properties to the channel underlying the native M-current, a slowly activating and deactivating potassium conductance which plays a critical role in determining the subthreshold electrical excitability of neurons as well as the responsiveness to synaptic inputs. Therefore, it is important in the regulation of neuronal excitability.
基因功能參考文獻:
Phylogenetic analysis, electrostatic potential mapping, in silico docking, electrophysiology, and radioligand binding assays reveal that the anticonvulsant binding pocket evolved to accommodate endogenous neurotransmitters including gamma-aminobutyric acid, which directly activates KCNQ5 and KCNQ3 via W265. PMID: 29748663
Tannic acid activates Kv7.4 and Kv7.3/7.5 K(+) channels resulting in vasodilation. PMID: 26969140
Carboxyl terminus helix C-D linker residues play a role in KCNQ3 current amplitudes by controlling the exit of the KCNQ3 channel from the endoplasmic reticulum. PMID: 26692086
In bipolar disorder patients' prefrontal cortex, Kcnq3 expression was decreased, DNA methylation was decreased, and Kcnq3 mRNA was decreased compared to controls. PMID: 25041603
the clinical and EEG features of this patient further on expand the phenotypic variability of KCNQ3 gene mutations PMID: 25278462
mutations in KCNQ3, similarly to KCNQ2, can be found in patients with more severe phenotypes including intellectual disability PMID: 25524373
We monitored KCNQ2/3 channel currents and translocation of PHPLCdelta1 domains as real-time indicators of PM PI(4,5)P2, and translocation of PHOSH2x2, and PHOSH1 domains as indicators of plasma membrane and Golgi PI(4)P, respectively. PMID: 24843134
This study demonistrated that benign neonatal sleep myoclonus can show autosomal dominant inheritance but not allelic to KCNQ3. PMID: 22447848
KCNQ3 mutations might be involved in families with infantile seizures. PMID: 23360469
Data show that KCNQ3 and KCNE5 mRNA expressions were significantly upregulated in preeclampsia. PMID: 21730298
Different structural determinants, identified at the N and C termini of KCNQ3, prevent the effects of syntaxin 1A and calmodulin, respectively. PMID: 21976501
This study reported that the presence of this uncommon residue at position 315 has a strong impact on the stability of the homotetramers and on channel trafficking. PMID: 20610766
There may be a genetic contribution of this gene in juvenile myoclonic epilepsy in a South Indian population. PMID: 12928862
Several BFNC mutations of KCNQ2 and KCNQ3 disrupt surface expression or polarized surface distribution of KCNQ channels, thereby revealing impaired targeting of KCNQ channels to axonal surfaces as a benign familial neonatal convulsions (BFNC) etiology. PMID: 16735477
ICA-27243 is a novel and selective KCNQ3 potassium channel activator. PMID: 18089837
The expression of KCNQ3 increased in late fetal life to infancy in brain. PMID: 18166285
This study identified a novel missense mutation of KCNQ3, c.988C>T located within exon 6. c.988C>T led to the substitution Cys for Arg in amino acid position 330 (p.R330C) in KCNQ3 potassium channel. PMID: 18249525
A three-dimensional homology model in the W309R mutant indicated that the R side chain of pore helices is too far from the Y side chain of the selectivity filter to interact via hydrogen bonds with each other and stabilize the pore structure. PMID: 18425618
Sequence variations of the KCNQ2 (and KCNQ3)genes may contribute to the etiology of common idiopathic epilepsy syndromes. PMID: 18625963
among the allowed assembly conformations are KCNQ3/4 and KCNQ4/5 heteromers. PMID: 18786918
most wild-type channels are functionally silent, with rearrangements of the pore-loop architecture induced by the presence of a hydroxyl-containing residue at the 315 position "unlocking" the channels into a conductive conformation PMID: 18790849