SCN1A - sodium voltage-gated channel alpha subunit 1 Gene
Also Known as DEE6; DRVT; FEB3; FHM3; NAC1; SCN1; SMEI; DEE6A; DEE6B; EIEE6; FEB3A; HBSCI; GEFSP2; Nav1.1
Species: Homo sapiens
About SCN1A
This gene has 25 transcripts (splice variants), 140 orthologues, 26 paralogues and is associated with 11 phenotypes. Biased expression in brain (RPKM 5.3), lung (RPKM 1.3) and 1 other tissue.
Summary
Voltage-dependent sodium channels are heteromeric complexes that regulate sodium exchange between intracellular and extracellular spaces and are essential for the generation and propagation of action potentials in muscle cells and neurons. Each Sodium Channel is composed of a large pore-forming, glycosylated alpha subunit and two smaller beta subunits. This gene encodes a Sodium Channel alpha subunit, which has four homologous domains, each of which contains six transmembrane regions. Allelic variants of this gene are associated with generalized epilepsy with febrile seizures and epileptic encephalopathy. Alternative splicing results in multiple transcript variants. The RefSeq Project has decided to create four representative RefSeq records. Three of the transcript variants are supported by experimental evidence and the fourth contains alternate 5' untranslated exons, the exact combination of which have not been experimentally confirmed for the full-length transcript. [provided by RefSeq, Oct 2015]
SCN1A Products (18)
| mRNA | Protein | Name |
|---|---|---|
| NM_001165963.4 | NP_001159435.1 | sodium channel protein type 1 subunit alpha isoform 1 |
| NM_001353952.2 | NP_001340881.1 | sodium channel protein type 1 subunit alpha isoform 2 |
| XM_047445393.1 | XP_047301349.1 | sodium channel protein type 1 subunit alpha isoform X2 |
| NM_001353957.2 | NP_001340886.1 | sodium channel protein type 1 subunit alpha isoform 3 |
| NM_006920.6 | NP_008851.3 | sodium channel protein type 1 subunit alpha isoform 2 |
| NM_001353954.2 | NP_001340883.1 | sodium channel protein type 1 subunit alpha isoform 4 |
| NM_001353951.2 | NP_001340880.1 | sodium channel protein type 1 subunit alpha isoform 2 |
| NM_001202435.3 | NP_001189364.1 | sodium channel protein type 1 subunit alpha isoform 1 |
| XM_047445392.1 | XP_047301348.1 | sodium channel protein type 1 subunit alpha isoform X1 |
| NM_001353948.2 | NP_001340877.1 | sodium channel protein type 1 subunit alpha isoform 1 |
| NM_001353961.2 | NP_001340890.1 | sodium channel protein type 1 subunit alpha isoform 6 |
| NM_001353955.2 | NP_001340884.1 | sodium channel protein type 1 subunit alpha isoform 4 |
| NM_001165964.3 | NP_001159436.1 | sodium channel protein type 1 subunit alpha isoform 3 |
| NM_001353960.2 | NP_001340889.1 | sodium channel protein type 1 subunit alpha isoform 5 |
| NM_001353958.2 | NP_001340887.1 | sodium channel protein type 1 subunit alpha isoform 3 |
| NR_148667.2 | ||
| NM_001353950.2 | NP_001340879.1 | sodium channel protein type 1 subunit alpha isoform 2 |
| NM_001353949.2 | NP_001340878.1 | sodium channel protein type 1 subunit alpha isoform 2 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential |
IDA
IDA: Inferred from direct assay
|
22150645 | GOA |
| enables voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential |
IMP
IMP: Inferred from mutant phenotype
|
22150645 | GOA |
| enables voltage-gated sodium channel activity |
IMP
IMP: Inferred from mutant phenotype
|
14672992 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in cardiac muscle cell action potential involved in contraction |
IMP
IMP: Inferred from mutant phenotype
|
27207958 | GOA |
| involved in membrane depolarization during action potential |
IMP
IMP: Inferred from mutant phenotype
|
14672992 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| is active in plasma membrane |
IDA
IDA: Inferred from direct assay
|
14672992 | GOA |
SCN1A Protein Structure
Ion_trans: Ion transport protein (157 - 422)
Na_trans_cytopl: Cytoplasmic domain of voltage-gated Na+ ion channel (484 - 718)
Ion_trans: Ion transport protein (804 - 990)
Na_trans_assoc: Sodium ion transport-associated (1006 - 1228)
Ion_trans: Ion transport protein (1254 - 1482)
Ion_trans: Ion transport protein (1576 - 1785)
- 0
- 400
- 800
- 1200
- 1600
- 2009 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
sodium channel protein type 1 subunit alpha |
|
|
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Epilepsy |
|
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| Partial Motor Epilepsy |
|
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| Generalized Epilepsy With Febrile Seizures Plus, Type 1 |
|
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| Developmental And Epileptic Encephalopathy 9 |
|
|
| Noonan Syndrome 1 |
|
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| Congenital Nervous System Abnormality |
|
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| Febrile Seizures |
|
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| Epilepsy, Idiopathic Generalized |
|
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| Somatoform Disorder |
|
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| Sudden Infant Death Syndrome |
|
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| Paroxysmal Extreme Pain Disorder |
|
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| Polymicrogyria |
|
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| Developmental And Epileptic Encephalopathy 21 |
|
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| Lennox-Gastaut Syndrome |
|
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| Epilepsy With Myoclonic-Atonic Seizures |
|
|
| Childhood Absence Epilepsy |
|
|
| Atrioventricular Block |
|
|
| Developmental And Epileptic Encephalopathy 1 |
|
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| Developmental And Epileptic Encephalopathy 13 |
|
|
| Landau-Kleffner Syndrome |
|
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| Epilepsy, Pyridoxine-Dependent |
|
|
| Developmental And Epileptic Encephalopathy 6b |
|
|
| Familial Or Sporadic Hemiplegic Migraine |
|
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| Benign Epilepsy With Centrotemporal Spikes |
|
|
| Chromosome 1p36 Deletion Syndrome |
|
|
| Long Qt Syndrome 3 |
|
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| Severe Congenital Neutropenia 2 |
|
|
| Adolescence-Adult Electroclinical Syndrome |
|
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| Migraine, Familial Hemiplegic, 2 |
|
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| Retinal Arteries, Tortuosity Of |
|
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| Erythromelalgia |
|
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| Migraine, Familial Hemiplegic, 1 |
|
|
| Benign Neonatal Seizures |
|
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| Sturge-Weber Syndrome |
|
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| Migraine Without Aura |
|
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| Photosensitive Epilepsy |
|
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| Episodic Ataxia |
|
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| Epilepsy, Familial Temporal Lobe, 1 |
|
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| Patent Foramen Ovale |
|
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| Benign Familial Neonatal Epilepsy |
|
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| Epilepsy, Familial Temporal Lobe, 8 |
|
|
| Epilepsy, Myoclonic Juvenile |
|
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| Familial Febrile Seizures |
|
|
| Alternating Hemiplegia Of Childhood |
|
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| Benign Familial Infantile Epilepsy |
|
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| Megalencephaly, Autosomal Dominant |
|
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| Progressive Myoclonus Epilepsy |
|
|
| Migraine With Aura |
|
|
| Developmental And Epileptic Encephalopathy 14 |
|
|
| Severe Congenital Neutropenia 6 |
|
|
| Hemiplegia |
|
|
| Pyruvate Dehydrogenase E1-Alpha Deficiency |
|
|
| Coffin-Siris Syndrome 1 |
|
|
| Developmental And Epileptic Encephalopathy 43 |
|
|
| Autism Spectrum Disorder |
|
|
| Autosomal Dominant Nocturnal Frontal Lobe Epilepsy |
|
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| Trigeminal Neuralgia |
|
|
| Unverricht-Lundborg Syndrome |
|
|
| Febrile Seizures, Familial, 1 |
|
|
| Body Mass Index Quantitative Trait Locus 11 |
|
|
| Scn1a Seizure Disorders |
|
|
| Progressive Familial Heart Block, Type Ia |
|
|
| Childhood Electroclinical Syndrome |
|
|
| Developmental And Epileptic Encephalopathy 2 |
|
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| Hypertelorism |
|
|
| Hyperkalemic Periodic Paralysis |
|
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| Episodic Ataxia, Type 2 |
|
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| Autism |
|
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| Familial Periodic Paralysis |
|
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| Migraine, Familial Hemiplegic, 3 |
|
|
| Glycine Encephalopathy |
|
|
| Contractures, Pterygia, And Spondylocarpotarsal Fusion Syndrome 1a |
|
|
| Dravet Syndrome |
|
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| Autonomic Nervous System Disease |
|
|
| Developmental And Epileptic Encephalopathy |
|
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| Gastroenteritis |
|
|
| Early Infantile Epileptic Encephalopathy |
|
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| Epilepsy With Generalized Tonic-Clonic Seizures |
|
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| Alzheimer Disease 9 |
|
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| Developmental And Epileptic Encephalopathy 7 |
|
|
| Reflex Epilepsy |
|
|
| Migraine With Or Without Aura 1 |
|
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| Episodic Pain Syndrome, Familial, 3 |
|
|
| Periventricular Nodular Heterotopia |
|
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| Generalized Epilepsy With Febrile Seizures Plus |
|
|
| Early Myoclonic Encephalopathy |
|
|
| Myoclonic Epilepsy Of Lafora |
|
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| West Syndrome |
|
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| Hemimegalencephaly |
|
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| Infancy Electroclinical Syndrome |
|
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| Juvenile Absence Epilepsy |
|
|
| Developmental And Epileptic Encephalopathy 52 |
|
|
| Neonatal Period Electroclinical Syndrome |
|
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| Rett Syndrome |
|
|
| Pervasive Developmental Disorder |
|
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| Autosomal Genetic Disease |
|
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| Headache |
|
|
| Generalized Epilepsy With Febrile Seizures Plus, Type 2 |
|
|
| Microcephaly |
|
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| Axonal Neuropathy |
|
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| Familial Hemiplegic Migraine |
|
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| Autosomal Dominant Severe Congenital Neutropenia |
|
|
| Hypokalemic Periodic Paralysis, Type 1 |
|
|
| Attention Deficit-Hyperactivity Disorder |
|
|
| 3-Methylglutaconic Aciduria, Type Iii |
|
|
| Specific Developmental Disorder |
|
|
| Febrile Seizures, Familial, 4 |
|
|
| Ohtahara Syndrome |
|
|
| Long Qt Syndrome |
|
|
| Epilepsy, Familial Temporal Lobe, 5 |
|
|
| Generalized Epilepsy With Febrile Seizures Plus, Type 7 |
|
|
| Early Onset Absence Epilepsy |
|
|
| Encephalopathy |
|
|
| Paine Syndrome |
|
|
| Spinocerebellar Ataxia 6 |
|
|
| Paramyotonia Congenita Of Von Eulenburg |
|
|
| Neuronal Migration Disorders |
|
|
| Status Epilepticus |
|
|
| Focal Epilepsy |
|
|
| Nervous System Disease |
|
|
| Brugada Syndrome |
|
|
| Trigeminal Nerve Disease |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Bos taurus | SCN1A | VGNC | VGNC:34345 |
| Felis catus | SCN1A | VGNC | VGNC:64920 |
| Canis familiaris | SCN1A | VGNC | VGNC:45915 |
| Mus musculus | SCN1A | MGD | MGI:98246 |
| Rattus norvegicus | SCN1A | RGD | RGD:69364 |
| Macaca mulatta | SCN1A | VGNC | VGNC:76982 |
| Others | SCN1A | NCBI |