Mechanisms and physiological implications of cooperative gating of clustered ion channels

RE Dixon, MF Navedo, MD Binder… - Physiological …, 2022 - journals.physiology.org
Ion channels play a central role in the regulation of nearly every cellular process. Dating
back to the classic 1952 Hodgkin–Huxley model of the generation of the action potential, ion …

The physiological function of different voltage-gated sodium channels in pain

G Goodwin, SB McMahon - Nature Reviews Neuroscience, 2021 - nature.com
Evidence from human genetic pain disorders shows that voltage-gated sodium channel α-
subtypes Nav1. 7, Nav1. 8 and Nav1. 9 are important in the peripheral signalling of pain …

SCN1A-deficient excitatory neuronal networks display mutation-specific phenotypes

EJH Van Hugte, EI Lewerissa, KM Wu, N Scheefhals… - Brain, 2023 - academic.oup.com
Dravet syndrome is a severe epileptic encephalopathy, characterized by (febrile) seizures,
behavioural problems and developmental delay. Eighty per cent of patients with Dravet …

Sodium channelopathies of skeletal muscle and brain

M Mantegazza, S Cestèle… - Physiological …, 2021 - journals.physiology.org
Voltage-gated sodium channels initiate action potentials in nerve, skeletal muscle, and other
electrically excitable cells. Mutations in them cause a wide range of diseases. These …

Nonlinear input-output functions of motoneurons

MD Binder, RK Powers, CJ Heckman - Physiology, 2020 - journals.physiology.org
All movements are generated by the activation of motoneurons, and hence their input-output
properties define the final step in processing of all motor commands. A major challenge to …

High-throughput reclassification of SCN5A variants

AM Glazer, Y Wada, B Li, A Muhammad… - The American Journal of …, 2020 - cell.com
Partial or complete loss-of-function variants in SCN5A are the most common genetic cause
of the arrhythmia disorder Brugada syndrome (BrS1). However, the pathogenicity of SCN5A …

SCN1A gain of function in early infantile encephalopathy

G Berecki, A Bryson, J Terhag, S Maljevic… - Annals of …, 2019 - Wiley Online Library
Objective To elucidate the biophysical basis underlying the distinct and severe clinical
presentation in patients with the recurrent missense SCN1A variant, p. Thr226Met. Patients …

Voltage sensors of a Na+ channel dissociate from the pore domain and form inter-channel dimers in the resting state

A Sumino, T Sumikama, M Shibata, K Irie - Nature Communications, 2023 - nature.com
Understanding voltage-gated sodium (Nav) channels is significant since they generate
action potential. Nav channels consist of a pore domain (PD) and a voltage sensor domain …

Pairwise biosynthesis of ion channels stabilizes excitability and mitigates arrhythmias

MB Jameson, EB Ríos-Pérez, F Liu… - Proceedings of the …, 2023 - National Acad Sciences
Coordinated expression of ion channels is crucial for cardiac rhythms, neural signaling, and
cell cycle progression. Perturbation of this balance results in many disorders including …

Modifier genes for sudden cardiac death

PJ Schwartz, L Crotti, AL George Jr - European Heart Journal, 2018 - academic.oup.com
Genetic conditions, even those associated with identical gene mutations, can present with
variable clinical manifestations. One widely accepted explanation for this phenomenon is …