1. Gene
  2. Scn3a - sodium channel, voltage-gated, type III, alpha Gene

Scn3a - sodium channel, voltage-gated, type III, alpha Gene

Mus musculus

Also known as Gm1000; Nav1.3

Gene ID: 20269 | Gene type: protein coding

About Scn3a

Chromosome 2: 65,287,462-65,397,971 reverse strand.GRCm39:CM000995.3

This gene has 8 transcripts (splice variants), 130 orthologues, 26 paralogues and is associated with 5 phenotypes. Biased expression in whole brain E14.5 (RPKM 13.5), CNS E18 (RPKM 13.4) and 6 other tissues.

Summary

Predicted to enable Calmodulin binding activity; sodium ion binding activity; and voltage-gated Sodium Channel activity. Predicted to be involved in several processes, including neuronal action potential; response to pyrethroid; and sodium ion transmembrane transport. Predicted to act upstream of or within regulation of ion transmembrane transport and sodium ion transport. Located in cytoplasm and membrane. Is expressed in cerebral cortex; heart; sciatic nerve; sympathetic ganglion; and telencephalon. Human ortholog(s) of this gene implicated in developmental and epileptic encephalopathy 62 and focal epilepsy. Orthologous to human SCN3A (sodium voltage-gated channel alpha subunit 3). [provided by Alliance of Genome Resources, Apr 2022]

Scn3a Products(7)

mRNA Protein Name
NM_001355171.1 NP_001342100.1 sodium channel protein type 3 subunit alpha isoform 7
NM_001355169.1 NP_001342098.1 sodium channel protein type 3 subunit alpha isoform 4
NM_001355168.1 NP_001342097.1 sodium channel protein type 3 subunit alpha isoform 3
NM_018732.3 NP_061202.3 sodium channel protein type 3 subunit alpha isoform 5
NM_001355166.1 NP_001342095.1 sodium channel protein type 3 subunit alpha isoform 1
NM_001355170.1 NP_001342099.1 sodium channel protein type 3 subunit alpha isoform 6
NM_001355167.1 NP_001342096.1 sodium channel protein type 3 subunit alpha isoform 2

Scn3a Protein Structure

Ion_trans

Ion_trans: pfam00520 (126 - 433)

Na_trans_cytopl

Na_trans_cytopl: pfam11933 (557 - 692)

Ion_trans

Ion_trans: pfam00520 (741 - 954)

Na_trans_assoc

Na_trans_assoc: pfam06512 (980 - 1183)

Ion_trans

Ion_trans: pfam00520 (1188 - 1460)

Na_channel_gate

Na_channel_gate: cd13433 (1452 - 1504)

Ion_trans

Ion_trans: pfam00520 (1508 - 1764)

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  • 1979 a.a.
Protein Preferred Names Protein Names

sodium channel protein type 3 subunit alpha

sodium channel protein brain III subunit alpha

sodium channel protein type III subunit alpha

sodium channel, voltage-gated, type III, alpha polypeptide

voltage-gated sodium channel subtype III

voltage-gated sodium channel subunit alpha Nav1.3

Orthologs Information

Species Symbol Source ID
Homo sapiens Scn3a NCBI NCBI:6328