Varaico: Literature-Extracted Genetic Variants

Gene:SCN4A
Variant:p.R222W
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SCN4A

NM_000334.4:p.R222W

Associated Papers

Adult genomic medicine: lessons from a multisite study of 2700 patients.

Bakur K et al.

Genome Medicine, 2025

41024252 (PubMed )
Supplement: 13073_2025_1529_MOESM2_ESM.xlsx › Sheet2

Genome-based newborn screening for severe childhood genetic diseases has high positive predictive value and sensitivity in a NICU pilot trial.

Kingsmore SF et al.

American Journal of Human Genetics, 2024

Mapping structural distribution and gating-property impacts of disease-associated mutations in voltage-gated sodium channels.

Akbari Ahangar A et al.

Iscience, 2024

39286500 (PubMed )
Supplement: mmc1.pdf

Novel compound heterozygous mutations in SCN4A as a potential genetic cause contributing to myopathic manifestations: A case report and literature review.

Han JY et al.

Heliyon, 2024

Genetic analysis of 37 cases with primary periodic paralysis in Chinese patients.

Zhao X et al.

Orphanet Journal of Rare Diseases, 2024

Periodic paralysis.

Cannon SC

Handbook of Clinical Neurology, 2024

Optical measurement of gating pore currents in hypokalemic periodic paralysis model cells.

Kubota T et al.

Disease Models & Mechanisms, 2023

Gene panel analysis of 119 index patients with suspected periodic paralysis in Japan.

Yuan JH et al.

Frontiers in Neurology, 2023

Mutations associated with hypokalemic periodic paralysis: from hotspot regions to complete analysis of CACNA1S and SCN4A genes.

Brugnoni R et al.

Neurogenetics, 2022

New Challenges Resulting From the Loss of Function of Nav1.4 in Neuromuscular Diseases.

Nicole S et al.

Frontiers in Pharmacology, 2021

Improving genetic diagnostics of skeletal muscle channelopathies.

Vivekanandam V et al.

Expert Review of Molecular Diagnostics, 2020

Myotonia congenita and periodic hypokalemia paralysis in a consanguineous marriage pedigree: Coexistence of a novel CLCN1 mutation and an SCN4A mutation.

Zhao C et al.

Plos One, 2020

Myotonia in a patient with a mutation in an S4 arginine residue associated with hypokalaemic periodic paralysis and a concomitant synonymous CLCN1 mutation.

Thor MG et al.

Scientific Reports, 2019

SCN5A variant R222Q generated abnormal changes in cardiac sodium current and action potentials in murine myocytes and Purkinje cells.

Daniel LL et al.

Heart Rhythm, 2019

A204E mutation in Nav1.4 DIS3 exerts gain- and loss-of-function effects that lead to periodic paralysis combining hyper- with hypo-kalaemic signs.

Kokunai Y et al.

Scientific Reports, 2018

NaV1.4 DI-S4 periodic paralysis mutation R222W enhances inactivation and promotes leak current to attenuate action potentials and depolarize muscle fibers.

Bayless-Edwards L et al.

Scientific Reports, 2018

Hypokalaemic periodic paralysis and myotonia in a patient with homozygous mutation p.R1451L in NaV1.4.

Luo S et al.

Scientific Reports, 2018

Spider toxin inhibits gating pore currents underlying periodic paralysis.

Männikkö R et al.

Proceedings of the National Academy of Sciences of the United States of America, 2018

29636418 (PubMed )
Supplement: pnas.201720185SI.pdf

[Screening of genetic mutations in a Chinese pedigree affected with hypokalemic periodic paralysis].

Guo M et al.

Zhonghua Yi Xue Yi Chuan Xue Za Zhi = Zhonghua Yixue Yichuanxue Zazhi = Chinese Journal of Medical Genetics, 2018

Sodium Channelopathies of Skeletal Muscle.

Cannon SC

Handbook of Experimental Pharmacology, 2018

Multifactorial Origin of Exertional Rhabdomyolysis, Recurrent Hematuria, and Episodic Pain in a Service Member with Sickle Cell Trait.

Sambuughin N et al.

Case Reports in Genetics, 2018

30533233 (PubMed )
Supplement: 6898546.f1.pdf

An atypical CaV1.1 mutation reveals a common mechanism for hypokalemic periodic paralysis.

Cannon SC

The Journal of General Physiology, 2017

N1366S mutation of human skeletal muscle sodium channel causes paramyotonia congenita.

Ke Q et al.

The Journal of Physiology, 2017

Channelopathies of skeletal muscle excitability.

Cannon SC

Comprehensive Physiology, 2015

Gating pore currents are defects in common with two Nav1.5 mutations in patients with mixed arrhythmias and dilated cardiomyopathy.

Moreau A et al.

The Journal of General Physiology, 2015

Physiological and Pathophysiological Insights of Nav1.4 and Nav1.5 Comparison.

Loussouarn G et al.

Frontiers in Pharmacology, 2015

Paralogue annotation identifies novel pathogenic variants in patients with Brugada syndrome and catecholaminergic polymorphic ventricular tachycardia.

Walsh R et al.

Journal of Medical Genetics, 2014

24136861 (PubMed )
Supplement: jmedgenet-2013-101917-s1.pdf

Genotype and phenotype analysis of patients with sporadic periodic paralysis.

Sung CC et al.

The American Journal of the Medical Sciences, 2012

Pathophysiological role of omega pore current in channelopathies.

Jurkat-Rott K et al.

Frontiers in Pharmacology, 2012

Skeletal muscle na channel disorders.

Simkin D et al.

Frontiers in Pharmacology, 2011

An atypical phenotype of hypokalemic periodic paralysis caused by a mutation in the sodium channel gene SCN4A.

Park YH et al.

Korean Journal of Pediatrics, 2010

A practical approach to genetic hypokalemia.

Lin SH et al.

Electrolyte & Blood Pressure : E & Bp, 2010

Voltage sensor charge loss accounts for most cases of hypokalemic periodic paralysis.

Matthews E et al.

Neurology, 2009

De novo mutations in the sodium-channel gene SCN1A cause severe myoclonic epilepsy of infancy.

Claes L et al.

American Journal of Human Genetics, 2001

Diagnostics in skeletal muscle channelopathies.

Vicino A et al.

Expert Review of Molecular Diagnostics, 0

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Regarding the variants extracted from papers and shown text snippets from research papers, the following holds: "Some rights reserved. This work permits non-commercial use, distribution and reproduction in any medium, provided the original author and source are credited."