FUNCTION: Regulatory subunit of multiple voltage-gated sodium channel complexes that play important roles in excitable membranes in brain, heart and skeletal muscle. Enhances the presence of the pore-forming alpha subunit at the cell surface and modulates channel gating characteristics and the rate ...
FUNCTION: Regulatory subunit of multiple voltage-gated sodium channel complexes that play important roles in excitable membranes in brain, heart and skeletal muscle. Enhances the presence of the pore-forming alpha subunit at the cell surface and modulates channel gating characteristics and the rate of channel inactivation. Modulates the activity of multiple pore-forming alpha subunits, such as SCN1A, SCN2A, SCN3A, SCN4A, SCN5A and SCN10A. {ECO:0000269|PubMed:14622265, ECO:0000269|PubMed:15525788, ECO:0000269|PubMed:18464934, ECO:0000269|PubMed:19710327, ECO:0000269|PubMed:21994374, ECO:0000269|PubMed:29992740, ECO:0000269|PubMed:8125980, ECO:0000269|PubMed:8394762}.; FUNCTION: [Isoform 2]: Cell adhesion molecule that plays a critical role in neuronal migration and pathfinding during brain development. Stimulates neurite outgrowth (PubMed:21994374). Has no regulatory function on the SCN2A sodium channel complex (PubMed:14622265). {ECO:0000269|PubMed:14622265, ECO:0000269|PubMed:21994374}.
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GO - Biological processes (BP):
axon guidance [GO:0007411]; cardiac conduction [GO:0061337]; cardiac muscle cell action potential involved in contraction [GO:0086002]; cardiac muscle contraction [GO:0060048]; cell adhesion [GO:0007155]; corticospinal neuron axon guidance [GO:0021966]; locomotion [GO:0040011]; membrane depolarizati...
axon guidance [GO:0007411]; cardiac conduction [GO:0061337]; cardiac muscle cell action potential involved in contraction [GO:0086002]; cardiac muscle contraction [GO:0060048]; cell adhesion [GO:0007155]; corticospinal neuron axon guidance [GO:0021966]; locomotion [GO:0040011]; membrane depolarization [GO:0051899]; membrane depolarization during cardiac muscle cell action potential [GO:0086012]; membrane depolarization during Purkinje myocyte cell action potential [GO:0086047]; neuronal action potential propagation [GO:0019227]; positive regulation of neuron projection development [GO:0010976]; positive regulation of sodium ion transport [GO:0010765]; regulation of atrial cardiac muscle cell membrane depolarization [GO:0060371]; regulation of heart rate by cardiac conduction [GO:0086091]; regulation of sodium ion transmembrane transporter activity [GO:2000649]; regulation of ventricular cardiac muscle cell membrane repolarization [GO:0060307]; sodium ion transmembrane transport [GO:0035725]
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GO - Molecular function (MF):
sodium channel inhibitor activity [GO:0019871]; sodium channel regulator activity [GO:0017080]; transmembrane transporter binding [GO:0044325]; voltage-gated ion channel activity [GO:0005244]; voltage-gated sodium channel activity [GO:0005248]; voltage-gated sodium channel activity involved in cardi...
sodium channel inhibitor activity [GO:0019871]; sodium channel regulator activity [GO:0017080]; transmembrane transporter binding [GO:0044325]; voltage-gated ion channel activity [GO:0005244]; voltage-gated sodium channel activity [GO:0005248]; voltage-gated sodium channel activity involved in cardiac muscle cell action potential [GO:0086006]; voltage-gated sodium channel activity involved in Purkinje myocyte action potential [GO:0086062]
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GO - Cellular component (CC):
extracellular region [GO:0005576]; integral component of plasma membrane [GO:0005887]; intercalated disc [GO:0014704]; node of Ranvier [GO:0033268]; perikaryon [GO:0043204]; plasma membrane [GO:0005886]; T-tubule [GO:0030315]; voltage-gated sodium channel complex [GO:0001518]...
extracellular region [GO:0005576]; integral component of plasma membrane [GO:0005887]; intercalated disc [GO:0014704]; node of Ranvier [GO:0033268]; perikaryon [GO:0043204]; plasma membrane [GO:0005886]; T-tubule [GO:0030315]; voltage-gated sodium channel complex [GO:0001518]
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