GO:0001518; C:voltage-gated sodium channel complex; IC:MGI.
GO:0017080; F:sodium channel regulator activity; IEA:Compara.
GO:0005248; F:voltage-gated sodium channel activity; IMP:MGI.
GO:0086006; F:voltage-gated sodium channel activity involved in regulation of cardiac muscle cell action potential; IEA:Compara.
GO:0086067; P:AV node cell to bundle of His cell communication; IEA:Compara.
GO:0060048; P:cardiac muscle contraction; IEA:Compara.
GO:0010765; P:positive regulation of sodium ion transport; IEA:Compara.
GO:0086002; P:regulation of cardiac muscle cell action potential involved in contraction; IEA:Compara.
GO:0086091; P:regulation of heart rate by cardiac conduction; IEA:Compara.
GO:2000649; P:regulation of sodium ion transmembrane transporter activity; IEA:Compara.
GO:0060307; P:regulation of ventricular cardiac muscle cell membrane repolarization; IEA:Compara.