Novel Genetic Variants Expand the Functional, Molecular, and Pathological Diversity of KCNA1 Channelopathy

K Paulhus, E Glasscock - International Journal of Molecular Sciences, 2023 - mdpi.com
The KCNA1 gene encodes Kv1. 1 voltage-gated potassium channel α subunits, which are
crucial for maintaining healthy neuronal firing and preventing hyperexcitability. Mutations in …

Clinical Spectrum of KCNA1 Mutations: New Insights into Episodic Ataxia and Epilepsy Comorbidity

K Paulhus, L Ammerman, E Glasscock - International Journal of …, 2020 - mdpi.com
Mutations in the KCNA1 gene, which encodes voltage-gated Kv1. 1 potassium channel α-
subunits, cause a variety of human diseases, complicating simple genotype–phenotype …

Refining Genotypes and Phenotypes in KCNA2-Related Neurological Disorders

JH Döring, J Schröter, J Jüngling, S Biskup… - International Journal of …, 2021 - mdpi.com
Pathogenic variants in KCNA2, encoding for the voltage-gated potassium channel Kv1. 2,
have been identified as the cause for an evolving spectrum of neurological disorders …

Clinical spectrum and genotype–phenotype associations of KCNA2-related encephalopathies

S Masnada, UBS Hedrich, E Gardella, J Schubert… - Brain, 2017 - academic.oup.com
Recently, de novo mutations in the gene KCNA2, causing either a dominant-negative loss-of-
function or a gain-of-function of the voltage-gated K+ channel Kv1. 2, were described to …

De novo KCNA6 variants with attenuated KV1.6 channel deactivation in patients with epilepsy

V Salpietro, V Galassi Deforie, S Efthymiou… - …, 2023 - Wiley Online Library
Objective Mutations in the genes encoding neuronal ion channels are a common cause of
Mendelian neurological diseases. We sought to identify novel de novo sequence variants in …

Molecular mechanisms of epileptic encephalopathy caused by KCNMA1 loss-of-function mutations

Y Yao, D Qu, X Jing, Y Jia, Q Zhong, L Zhuo… - Frontiers in …, 2022 - frontiersin.org
The gene kcnma1 encodes the α-subunit of high-conductance calcium-and voltage-
dependent K+ (BK) potassium channel. With the development of generation gene …

An emerging spectrum of variants and clinical features in KCNMA1-linked channelopathy

JP Miller, HJ Moldenhauer, S Keros, AL Meredith - Channels, 2021 - Taylor & Francis
ABSTRACT KCNMA1-linked channelopathy is an emerging neurological disorder
characterized by heterogeneous and overlapping combinations of movement disorder …

De novo variants in KCNJ3 are associated with early-onset epilepsy

J Li, S Mei, X Mao, L Wan, H Wang, B Xiao… - Journal of Medical …, 2024 - jmg.bmj.com
Background KCNJ3 encodes a subunit of G-protein-coupled inwardly rectifying potassium
channels, which are important for cellular excitability and inhibitory neurotransmission …

Clinical and functional study of a de novo variant in the PVP motif of Kv1. 1 channel associated with epilepsy, developmental delay and ataxia

G Dinoi, M Morin, E Conte, H Mor Shaked… - International Journal of …, 2022 - mdpi.com
Mutations in the KCNA1 gene, encoding the voltage-gated potassium channel Kv1. 1, have
been associated with a spectrum of neurological phenotypes, including episodic ataxia type …

[HTML][HTML] Kv3. 1 channelopathy: a novel loss-of-function variant and the mechanistic basis of its clinical phenotypes

X Li, Y Zheng, S Li, U Nair, C Sun, C Zhao… - Annals of …, 2021 - ncbi.nlm.nih.gov
Background KCNC1 encodes Kv3. 1, a subunit of the Kv3 voltage-gated potassium
channels. It is predominantly expressed in inhibitory GABAergic interneurons and cerebellar …