SCN3A - sodium voltage-gated channel alpha subunit 3 Gene

Also Known as NAC3; DEE62; EIEE62; FFEVF4; Nav1.3

Species: Homo sapiens

Gene Type: protein coding
Gene ID: 6328

About SCN3A

Cytogenetic location: 2q24.3 Genomic coordinates (GRCh38): 2:165,087,526-165,204,050 (from NCBI)

This gene has 12 transcripts (splice variants), 130 orthologues, 26 paralogues and is associated with 4 phenotypes. Biased expression in brain (RPKM 5.7), adrenal (RPKM 1.1) and 11 other tissues.

Summary

Voltage-gated sodium channels are Transmembrane Glycoprotein complexes composed of a large alpha subunit with 24 transmembrane domains and one or more regulatory beta subunits. They are responsible for the generation and propagation of action potentials in neurons and muscle. This gene encodes one member of the Sodium Channel alpha subunit gene family, and is found in a cluster of five alpha subunit genes on chromosome 2. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

SCN3A Products (13)

mRNA Protein Name
XM_017004661.3 XP_016860150.1 sodium channel protein type 3 subunit alpha isoform X3
NM_006922.4 NP_008853.3 sodium channel protein type 3 subunit alpha isoform 1
XM_017004660.3 XP_016860149.1 sodium channel protein type 3 subunit alpha isoform X1
XM_017004665.2 XP_016860154.1 sodium channel protein type 3 subunit alpha isoform X9
NM_001081677.2 NP_001075146.1 sodium channel protein type 3 subunit alpha isoform 3
XM_047445394.1 XP_047301350.1 sodium channel protein type 3 subunit alpha isoform X4
NM_001081676.2 NP_001075145.1 sodium channel protein type 3 subunit alpha isoform 2
XM_011511610.4 XP_011509912.1 sodium channel protein type 3 subunit alpha isoform X2
XM_017004662.3 XP_016860151.1 sodium channel protein type 3 subunit alpha isoform X5
XM_047445395.1 XP_047301351.1 sodium channel protein type 3 subunit alpha isoform X7
XM_011511613.4 XP_011509915.1 sodium channel protein type 3 subunit alpha isoform X6
XM_017004664.2 XP_016860153.1 sodium channel protein type 3 subunit alpha isoform X8
XM_017004666.2 XP_016860155.1 sodium channel protein type 3 subunit alpha isoform X10
Molecular Function GO Annotation Evidence References Source
enables voltage-gated sodium channel activity IDA
IDA: Inferred from direct assay
35277491 GOA
Biological Process GO Annotation Evidence References Source
involved in membrane depolarization during action potential IDA
IDA: Inferred from direct assay
35277491 GOA
Cellular Component GO Annotation Evidence References Source
is active in plasma membrane IDA
IDA: Inferred from direct assay
35277491 GOA
part of voltage-gated sodium channel complex IDA
IDA: Inferred from direct assay
35277491 GOA
EXP: Inferred from Experiment IDA: Inferred from direct assay IPI: Inferred from physical interaction IMP: Inferred from mutant phenotype IGI: Inferred from genetic interaction IEP: Inferred from expression pattern

SCN3A Protein Structure

Ion_trans

Ion_trans: Ion transport protein (157 - 423)

Na_trans_cytopl

Na_trans_cytopl: Cytoplasmic domain of voltage-gated Na+ ion channel (486 - 708)

Ion_trans

Ion_trans: Ion transport protein (796 - 982)

Na_trans_assoc

Na_trans_assoc: Sodium ion transport-associated (998 - 1216)

Ion_trans

Ion_trans: Ion transport protein (1242 - 1467)

Ion_trans

Ion_trans: Ion transport protein (1561 - 1770)

  • 0
  • 400
  • 800
  • 1200
  • 1600
  • 2000 a.a.
Protein Preferred Names Protein Names

sodium channel protein type 3 subunit alpha

  • brain III voltage-gated sodium channel

  • sodium channel protein brain III subunit alpha

  • sodium channel protein type III subunit alpha

  • sodium channel, voltage gated, type III alpha subunit

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

  • voltage-gated sodium channel subtype III

  • voltage-gated sodium channel subunit alpha Nav1.3

Related Diseases

Diseases Alias
Autism
  • Autistic Disorder

  • Autism Susceptibility 1

  • Childhood Autism

  • Autistic Disorder Of Childhood Onset

  • Infantile Autism

  • Kanner'S Syndrome

  • Autistic

Migraine, Familial Hemiplegic, 3
  • FHM3

  • Familial Hemiplegic Migraine 3

  • Mhp3

  • Migraine, Hemiplegic, Familial, Type 3

Progressive Familial Heart Block, Type Ia
  • PFHB1A

  • Bundle Branch Block

  • Heart Block, Nonprogressive

  • Lenegre-Lev Disease

  • Hereditary Bundle Branch System Defect

  • Progressive Familial Heart Block Type Ia

  • Pfhbia

  • Pccd

  • Hbbd

  • Progressive Familial Heart Block, Type 1a

  • Heart Block, Progressive Familial, Type I

  • Pfhbi

  • Cardiac Conduction Defect, Progressive

  • Heart Block, Progressive, Type Ia

  • Progressive Familial Heart Block Type 1a

  • Familial Progressive Cardiac Conduction Defect

  • Heart Block Progressive Familial Type 1

  • Familial Lenègre Disease

  • Familial Lev Disease

  • Familial Lev-Lenègre Disease

  • Familial Pccd

  • Familial Progressive Heart Block

  • Hereditary Bundle Branch Defect

  • Progressive Familial Heart Block

  • Progressive Familial Heart Block 1a

  • Cardiac Conduction Defect

  • Progressive Cardiac Conduction Defect

  • Progressive Familial Heart Block Type I

  • Heart Block, Progressive, Familial, Type 1a

  • Bundle-Branch Block

  • Conduction Disorder Of The Heart

Epilepsy, Idiopathic Generalized 12
  • EIG12

  • Epilepsy, Idiopathic Generalized, Susceptibility To, 12

  • Idiopathic Generalized Epilepsy 12

  • Susceptibility To Idiopathic Generalized Epilepsy 12

  • Epilepsy, Idiopathic, Generalized, Susceptibility To, Type 12

Early Infantile Epileptic Encephalopathy
  • Early Infantile Epileptic Encephalopathy With Suppression Bursts

  • Early Infantile Epileptic Encephalopathy With Burst-Suppression

  • Eiee

  • Early Infantile Epileptic Encephalopathy With Suppression-Bursts

  • Ohtahara Syndrome

  • Encephalopathy, Epileptic, Early Infantile

Migraine With Or Without Aura 1
  • Migraine

  • Migraine With Or Without Aura, Susceptibility To, 1

  • Migraine Disorder

  • Migraine Variant

  • Migraines

  • Migraine Disorders

  • Mgr1

  • Mgau

  • Ma

  • Migraine With Or Without Aura

  • Classic Migraine

  • Common Migraine

  • Disorder, Migraine

  • Headache Migraine

  • Headache Migrainous

  • Migraine Headache

  • Migraine Syndrome

  • Headache Including Migraine

  • Migraine, Susceptibility To

Epilepsy
  • Epilepsy Syndrome

  • Epileptic Syndrome

  • Epilepsies

  • Symptomatic Epilepsies

  • Post Traumatic Epilepsy

  • Traumatic Epilepsy

  • Traumatic Epileptic

  • Epilepsy Due To Hippocampal Sclerosis

  • Epilepsy With Ammon'S Horn Sclerosis

  • Epilepsy Due To Cortical Dysplasia

  • Epilepsy Due To Neuronal Migration Disorders

Dravet Syndrome
  • Severe Myoclonic Epilepsy Of Infancy

  • Smei

  • Severe Myoclonic Epilepsy In Infancy

  • Epileptic Encephalopathy, Early Infantile, 6

  • DRVT

  • Developmental And Epileptic Encephalopathy 6a

  • Dee6a

  • Eiee6

  • Dee6

  • Developmental And Epileptic Encephalopathy 6

  • Early Infantile Epileptic Encephalopathy 6

  • Myoclonic Epilepsy, Severe, Of Infancy

  • Sme

  • Severe Myoclonus Epilepsy Of Infancy

  • Borderline Smei

  • Smeb

  • Smeb-M

  • Smeb-O

  • Smeb-Sw

  • Smei-Borderland

  • Smei-Borderland More Than One Feature

  • Smei-Borderland-Myoclonic Seizures

  • Smei-Borderland-Spike Wave

  • Intractable Childhood Epilepsy With Generalized Tonic-Clonic Seizures

  • ICEGTC

  • Developmental And Epileptic Encephalopathy, 6

  • Infantile Severe Myoclonic Epilepsy

  • Epilepsy, Intractable Childhood, With Generalized Tonic-Clonic Seizures

Autonomic Nervous System Disease
  • Autonomic Nervous System Dysfunction

  • Autonomic Nervous System Disorders

  • Autonomic Nervous System Disorder

  • Autonomic Nervous System Diseases

  • Abnormality Of The Autonomic Nervous System

West Syndrome
  • Infantile Spasms

  • Infantile Spasms Syndrome

  • Infantile Spasm

  • X-Linked Infantile Spasm Syndrome

  • X-Linked Infantile Spasms

  • Epileptic Encephalopathy, Early Infantile, 1

  • Is

  • Tonic Spasms With Clustering, Arrest Of Psychomotor Development And Hypsarrhythmia On Eeg

  • West'S Syndrome

  • Spasms, Infantile

  • Is -[Infantile Spasm]

  • Salaam Spasm

  • Salaam Tic

Epilepsy, Idiopathic Generalized
  • Idiopathic Generalized Epilepsy

  • Generalised Epilepsy

  • Epilepsy, Generalized

  • EIG

  • Ige

  • Epilepsy, Idiopathic Generalized, Susceptibility To, 1

  • Epilepsy, Idiopathic Generalized 1

  • Epilepsy, Idiopathic Generalized, Susceptibility To

  • Epilepsy, Idiopathic, Generalized

  • Epilepsy, Idiopathic, Generalized, Susceptibility To, Type 1

Paroxysmal Extreme Pain Disorder
  • PEPD

  • Familial Rectal Pain

  • Pexpd

  • Submandibular, Ocular, And Rectal Pain With Flushing

  • Pain, Submandibular, Ocular, And Rectal, With Flushing

  • Rectal Pain, Familial

  • Submandibular, Ocular And Rectal Pain With Flushing

  • Familial Rectal Syndrome

  • Frp

  • Pain Disorder, Paroxysmal, Extreme

Polymicrogyria, Bilateral Perisylvian, X-Linked
  • Bilateral Perisylvian Polymicrogyria

  • Polymicrogyria, Bilateral Perisylvian

  • Pmgx

  • Perisylvian Syndrome, Congenital Bilateral

  • Cbps

  • Congenital Bilateral Perisylvian Syndrome

  • Perisylvian Syndrome

  • BPPX

  • Bpp

Episodic Pain Syndrome, Familial, 3
  • FEPS3

  • Familial Episodic Pain Syndrome With Predominantly Lower Limb Involvement

  • Familial Episodic Pain Syndrome 3

Neonatal Period Electroclinical Syndrome
Generalized Epilepsy With Febrile Seizures Plus
  • Gefs+

  • Genetic Epilepsy With Febrile Seizures Plus

  • Generalized Epilepsy With Febrile Seizures-Plus

  • Genetic Epilepsy With Febrile Seizures-Plus

  • Epilepsy, Generalized, With Febrile Seizures Plus

Scn3a-Related Neurodevelopmental Disorder
Abnormality Of Glucagon Secretion
  • Glucagon Secretion Abnormality

  • Abnormality Of Secretion Of Glucagon

Familial Hemiplegic Migraine
  • Hemiplegic Migraine, Familial

  • Hemiplegic-Ophthalmoplegic Migraine

  • Fhm

  • Hemiplegic Migraine Familial

Temporal Lobe Epilepsy
  • Epilepsy, Temporal Lobe

  • Epilepsy Temporal Lobe

Paine Syndrome
  • Pain Disorder

  • Pain

  • Microcephaly With Spastic Diplegia

  • Pain Syndrome

Non-Specific Early-Onset Epileptic Encephalopathy
  • Undetermined Early-Onset Epileptic Encephalopathy

  • Non-Specific Eoee

  • Undetermined Eoee

Long Qt Syndrome
  • Romano-Ward Syndrome

  • Long Q-T Syndrome

  • Lqt

  • Qt Syndrome, Long

  • Congenital Long Qt Syndrome

  • Familial Long Qt Syndrome

Trigeminal Nerve Disease
  • Trigeminal Nerve Diseases

  • Disorders Of 5th Cranial Nerve

  • Disorders Of The Fifth Cranial Nerve

Somatoform Disorder
  • Physiological Malfunction Arising From Mental Factor

  • Psychosomatic Disorder

  • Psychophysiologic Disorders

Brugada Syndrome
  • Sudden Unexpected Nocturnal Death Syndrome

  • Sudden Unexplained Nocturnal Death Syndrome

  • Bangungut

  • Brugada Type Idiopathic Ventricular Fibrillation

  • Pokkuri Death Syndrome

  • Sunds

  • Idiopathic Ventricular Fibrillation, Brugada Type

  • Sudden Unexplained Death

  • Dream Disease

  • Right Bundle Branch Block, St Segment Elevation, And Sudden Death Syndrome

  • Sudden Unexplained Death Syndrome

  • Suds

  • Sunds - [Sudden Unexplained Nocturnal Death Syndrome]

Parietal Foramina
  • Enlarged Parietal Foramina

  • Hereditary Cranium Bifidum

  • Symmetric Parietal Foramina

  • Catlin Marks

  • Foramina Parietalia Permagna

  • Caitlin Marks

  • Cranium Bifidum

  • Cranium Bifidum Occultum

  • Fenestrae Parietals Symmetricae

  • Fpp

  • Giant Parietal Foramina

  • Pfm

  • Fenestrae Parietales Symmetricae

  • Foramina, Parietal

Lennox-Gastaut Syndrome
  • Epileptic Encephalopathy Lennox-Gastaut Type

  • Lennox Syndrome

  • Encephalopathy Of Childhood

  • Childhood Epileptic Encephalopathy With Diffuse Slow Spikes And Waves

  • Lgs

Childhood Absence Epilepsy
  • Pyknolepsy

  • Petit Mal Epilepsy

  • Absence Seizures

  • Absence Seizure

  • Petit Mal Seizure

  • Absence Epilepsy, Childhood

  • Pykno-Epilepsy

  • Epilepsy, Absence

  • Absence Epilepsy

  • Pycnolepsy

Episodic Pain Syndrome, Familial, 2
  • FEPS2

  • Familial Episodic Pain Syndrome 2

Developmental And Epileptic Encephalopathy 13
  • Epileptic Encephalopathy, Early Infantile, 13

  • DEE13

  • Eiee13

  • Developmental And Epileptic Encephalopathy, 13

  • Early Infantile Epileptic Encephalopathy 13

  • Scn8a Encephalopathy

  • Early Infantile Epileptic Encephalopathy-13

  • Scn8a Epilepsy

  • Encephalopathy, Developmental And Epileptic, Type 13

Polymicrogyria
  • Pmg

Erythromelalgia
  • Primary Erythromelalgia

  • Erythermalgia

  • Primary Erythermalgia

  • Mitchell Disease

  • Familial Erythromelalgia

Diabetic Neuropathy
  • Diabetic Neuropathies

Dystonia 9
  • DYT9

  • Choreoathetosis/Spasticity, Episodic

  • Episodic Choreoathetosis/Spasticity

  • Cse Choreoathetosis, Paroxysmal, With Episodic Ataxia

  • Choreoathetosis, Kinesigenic, With Episodic Ataxia And Spasticity

  • Paroxysmal Dystonic Choreathetosis With Episodic Ataxia And Spasticity

  • Cse

  • Dystonia-9

  • Kinesigenic Choreoathetosis With Episodic Ataxia And Spasticity

  • Paroxysmal Choreoathetosis With Episodic Ataxia

  • Dystonia, Type 9

Developmental And Epileptic Encephalopathy
  • Encephalopathy, Developmental And Epileptic

Familial Febrile Seizures
  • Familial Febrile Convulsions

  • Feb

  • Febrile Seizures, Familial

Epilepsy, Familial Focal, With Variable Foci 4
  • FFEVF4

  • Epilepsy, Familial Focal, With Variable Foci, Type 4

Peripheral Nervous System Disease
  • Peripheral Neuropathy

  • Peripheral Nerve Disease

  • Peripheral Nerve Disorders

  • Neuropathy, Peripheral

  • Peripheral Neuropathy Due To Vitamin Pyridoxine Hyperalimentation

Developmental And Epileptic Encephalopathy 62
  • DEE62

  • Epileptic Encephalopathy, Early Infantile, 62

  • Eiee62

  • Developmental And Epileptic Encephalopathy, 62

  • Early Infantile Epileptic Encephalopathy 62

  • Encephalopathy, Epileptic, Early Infantile, Type 62

Trigeminal Neuralgia
  • Tic Douloureux

  • Trifacial Neuralgia

  • Trifocal Neuralgia

  • Neuralgia Of The Fifth Cranial Nerve

  • Neuralgia Of 5th Cranial Nerve

  • Infraorbital Neuralgia

Benign Familial Infantile Epilepsy
  • Benign Familial Infantile Seizures

  • Bfie

  • Benign Familial Infantile Convulsion

  • Bfic

  • Bfis

  • Benign Familial Infantile Convulsions

  • Familial Benign Neonatal Epilepsy

  • Watanabe-Vigevano Syndrome

Diseases Alias
Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Orthologs Information

Species Symbol Source ID
Rattus norvegicus SCN3A RGD RGD:3635
Mus musculus SCN3A MGD MGI:98249
Bos taurus SCN3A VGNC VGNC:55078
Felis catus SCN3A VGNC VGNC:64922
Macaca mulatta SCN3A VGNC VGNC:76985
Canis familiaris SCN3A VGNC VGNC:45918
Others SCN3A NCBI