NAV1.4 Voltage-Gated Sodium Channel

**Definition:** A voltage-gated sodium channel subtype that mediates the sodium ion PERMEABILITY of SKELETAL MYOCYTES. Defects in the SCN4A gene, which codes for the alpha subunit of this sodium channel, are associated with several MYOTONIC DISORDERS.

**Tree numbers:** - D12.776.157.530.400.875.750.400 - D12.776.210.500.675 - D12.776.543.550.450.875.750.400 - D12.776.543.585.400.875.750.400

**Synonyms:** - Type 4 Voltage-Gated Sodium Channel - Voltage-Gated Sodium Channel Type 4