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Sodium channel protein type 3 subunit alpha

Molecular classification
Ion channel, Voltage-gated sodium channel
01

Overview

The sodium channel protein type 3 subunit alpha (Nav1.3), encoded by the SCN3A gene, is a pore-forming subunit of the voltage-gated sodium channel. It mediates the depolarizing phase of action potentials in excitable membranes. Mutations or dysfunctions are associated with various neurological conditions including epilepsy.

Other names
Nav1.3SCN3A
02

Mechanism of action

Voltage-gated sodium channel blockade

03

Biological functions

Membrane depolarizationAction potential generationNeuronal excitability
04

Disease associations

EpilepsyNeurodevelopmental disorders

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