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Aliases for SCN2B Gene

Aliases for SCN2B Gene

  • Sodium Voltage-Gated Channel Beta Subunit 2 2 3
  • Sodium Channel, Voltage Gated, Type II Beta Subunit 2 3 5
  • Sodium Channel, Voltage-Gated, Type II, Beta Polypeptide 2 3
  • Sodium Channel, Voltage-Gated, Type II, Beta Subunit 2
  • Neuronal Voltage-Gated Sodium Channel Beta 2 Subunit 3
  • Sodium Channel, Voltage-Gated, Type II, Beta 2
  • ATFB14 3

External Ids for SCN2B Gene

Previous GeneCards Identifiers for SCN2B Gene

  • GC11M120392
  • GC11M119545
  • GC11M118070
  • GC11M117573
  • GC11M117542
  • GC11M118033
  • GC11M113967

Summaries for SCN2B Gene

Entrez Gene Summary for SCN2B Gene

  • The protein encoded by this gene is the beta 2 subunit of the type II voltage-gated sodium channel. The encoded protein is involved in cell-cell adhesion and cell migration. Defects in this gene can be a cause of Brugada Syndrome, atrial fibrillation, or sudden infant death syndrome. [provided by RefSeq, Jul 2015]

GeneCards Summary for SCN2B Gene

SCN2B (Sodium Voltage-Gated Channel Beta Subunit 2) is a Protein Coding gene. Diseases associated with SCN2B include Atrial Fibrillation, Familial, 14 and Scn2b-Related Familial Atrial Fibrillation. Among its related pathways are Neuropathic Pain-Signaling in Dorsal Horn Neurons and Activation of cAMP-Dependent PKA. GO annotations related to this gene include sodium channel regulator activity and voltage-gated sodium channel activity involved in cardiac muscle cell action potential. An important paralog of this gene is MPZL1.

UniProtKB/Swiss-Prot for SCN2B Gene

  • Crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the sodium channel. The subunit beta-2 causes an increase in the plasma membrane surface area and in its folding into microvilli. Interacts with TNR may play a crucial role in clustering and regulation of activity of sodium channels at nodes of Ranvier (By similarity).

Tocris Summary for SCN2B Gene

  • Voltage-gated sodium channels (NaV) are responsible for action potential initiation and propagation in excitable cells, including nerve, muscle, and neuroendocrine cell types. They are also expressed at low levels in non-excitable cells, where their physiological role is unclear.

Gene Wiki entry for SCN2B Gene

No data available for PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for SCN2B Gene

Genomics for SCN2B Gene

Regulatory Elements for SCN2B Gene

Enhancers for SCN2B Gene
GeneHancer Identifier Score Enhancer Sources TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Other Gene Targets for Enhancer

Enhancers around SCN2B on UCSC Golden Path with GeneCards custom track

Genomic Location for SCN2B Gene

118,161,951 bp from pter
118,176,673 bp from pter
14,723 bases
Minus strand

Genomic View for SCN2B Gene

Genes around SCN2B on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
SCN2B Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for SCN2B Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for SCN2B Gene

Proteins for SCN2B Gene

  • Protein details for SCN2B Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Sodium channel subunit beta-2
    Protein Accession:
    Secondary Accessions:
    • O75302
    • Q9UNN3

    Protein attributes for SCN2B Gene

    215 amino acids
    Molecular mass:
    24326 Da
    Quaternary structure:
    • The voltage-sensitive sodium channel consists of an ion conducting pore forming alpha-subunit regulated by one or more beta-1, beta-2, beta-3 and/or beta-4 subunits. Beta-1 and beta-3 are non-covalently associated with alpha, while beta-2 and beta-4 are covalently linked by disulfide bonds (By similarity).

neXtProt entry for SCN2B Gene

Proteomics data for SCN2B Gene at MOPED

Post-translational modifications for SCN2B Gene

  • Glycosylation at Asn 42, Asn 66, and Asn 74
  • Modification sites at PhosphoSitePlus

Other Protein References for SCN2B Gene

ENSEMBL proteins:
REFSEQ proteins:

Antibody Products

  • Cell Signaling Technology (CST) Antibodies for SCN2B (SCN2B)

No data available for DME Specific Peptides for SCN2B Gene

Domains & Families for SCN2B Gene

Protein Domains for SCN2B Gene

Suggested Antigen Peptide Sequences for SCN2B Gene

Graphical View of Domain Structure for InterPro Entry



  • Contains 1 Ig-like C2-type (immunoglobulin-like) domain.
  • Belongs to the sodium channel auxiliary subunit SCN2B (TC 8.A.17) family.
  • Contains 1 Ig-like C2-type (immunoglobulin-like) domain.
  • Belongs to the sodium channel auxiliary subunit SCN2B (TC 8.A.17) family.
genes like me logo Genes that share domains with SCN2B: view

Function for SCN2B Gene

Molecular function for SCN2B Gene

GENATLAS Biochemistry:
sodium voltage-gated channel,type II,auxilliary subunit beta homolog to rat contactin,involved in the initiation and conduction of electrical impulses in nerves,highly similar to myelin protein zero may be involved in demyelinating diseases,CMT2B excluded
UniProtKB/Swiss-Prot Function:
Crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the sodium channel. The subunit beta-2 causes an increase in the plasma membrane surface area and in its folding into microvilli. Interacts with TNR may play a crucial role in clustering and regulation of activity of sodium channels at nodes of Ranvier (By similarity).
genes like me logo Genes that share phenotypes with SCN2B: view

Human Phenotype Ontology for SCN2B Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Models for SCN2B Gene

MGI Knock Outs for SCN2B:

Animal Model Products

No data available for Enzyme Numbers (IUBMB) , Gene Ontology (GO) - Molecular Function , Transcription Factor Targets and HOMER Transcription for SCN2B Gene

Localization for SCN2B Gene

Subcellular locations from UniProtKB/Swiss-Prot for SCN2B Gene

Membrane; Single-pass type I membrane protein.

Subcellular locations from

Jensen Localization Image for SCN2B Gene COMPARTMENTS Subcellular localization image for SCN2B gene
Compartment Confidence
plasma membrane 5
extracellular 3
endoplasmic reticulum 1
golgi apparatus 1
mitochondrion 1

No data available for Gene Ontology (GO) - Cellular Components for SCN2B Gene

Pathways & Interactions for SCN2B Gene

genes like me logo Genes that share pathways with SCN2B: view

Pathways by source for SCN2B Gene

Interacting Proteins for SCN2B Gene

Gene Ontology (GO) - Biological Process for SCN2B Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0007268 synaptic transmission TAS 9295116
GO:0007399 nervous system development IEA --
GO:0060078 regulation of postsynaptic membrane potential IEA --
GO:0060371 regulation of atrial cardiac muscle cell membrane depolarization IMP 19808477
GO:0086012 membrane depolarization during cardiac muscle cell action potential IMP 19808477
genes like me logo Genes that share ontologies with SCN2B: view

No data available for SIGNOR curated interactions for SCN2B Gene

Drugs & Compounds for SCN2B Gene

(4) Drugs for SCN2B Gene - From: DrugBank, DGIdb, HMDB, and Tocris

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Zonisamide Approved, Investigational Pharma blocker, Target, inhibitor Antiepileptic with anticonvulsant and mechanistic effect 65
Valproic Acid Approved, Investigational Pharma Target HDAC1 inhibitor, Histone deacetylase (HDAC)inhibitors 312
Veratridine Pharma Activator Voltage-gated Na+ channel opener 0
Vinpocetine Pharma Inhibition, Inhibitor PDE inhibitor, Na+ channel blocker 4

(4) Additional Compounds for SCN2B Gene - From: Tocris and HMDB

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
  • Sodium
  • Sodium ion
Amiloride hydrochloride
Flunarizine dihydrochloride
Riluzole hydrochloride

(5) Tocris Compounds for SCN2B Gene

Compound Action Cas Number
Amiloride hydrochloride Na+ channel blocker; also I2 imidazoline ligand 2016-88-8
Flunarizine dihydrochloride Dual Na+/Ca2+ channel (T-type) blocker 30484-77-6
Riluzole hydrochloride Glutamate release inhibitor/GABA uptake inhibitor 850608-87-6
Veratridine Voltage-gated Na+ channel opener 71-62-5
Vinpocetine Na+ channel blocker 42971-09-5
genes like me logo Genes that share compounds with SCN2B: view

Transcripts for SCN2B Gene

mRNA/cDNA for SCN2B Gene

(1) REFSEQ mRNAs :
(11) Additional mRNA sequences :
(67) Selected AceView cDNA sequences:
(1) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Unigene Clusters for SCN2B Gene

Sodium channel, voltage-gated, type II, beta subunit:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for SCN2B Gene

No ASD Table

Relevant External Links for SCN2B Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for SCN2B Gene

mRNA expression in normal human tissues for SCN2B Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for SCN2B Gene

This gene is overexpressed in Brain - Frontal Cortex (BA9) (x5.6), Brain - Cortex (x5.6), Brain - Cerebellar Hemisphere (x5.5), Brain - Cerebellum (x5.3), Brain - Anterior cingulate cortex (BA24) (x4.8), and Brain - Nucleus accumbens (basal ganglia) (x4.7).

Protein differential expression in normal tissues from HIPED for SCN2B Gene

This gene is overexpressed in Frontal cortex (60.1).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, and MOPED for SCN2B Gene

SOURCE GeneReport for Unigene cluster for SCN2B Gene Hs.129783

mRNA Expression by UniProt/SwissProt for SCN2B Gene

Tissue specificity: Brain specific.
genes like me logo Genes that share expression patterns with SCN2B: view

Protein tissue co-expression partners for SCN2B Gene

- Elite partner

Primer Products

Orthologs for SCN2B Gene

This gene was present in the common ancestor of chordates.

Orthologs for SCN2B Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia SCN2B 35
  • 92.4 (n)
  • 94.88 (a)
SCN2B 36
  • 95 (a)
(Canis familiaris)
Mammalia SCN2B 35
  • 91.16 (n)
  • 93.95 (a)
SCN2B 36
  • 78 (a)
(Mus musculus)
Mammalia Scn2b 35
  • 87.75 (n)
  • 92.09 (a)
Scn2b 16
Scn2b 36
  • 92 (a)
(Pan troglodytes)
Mammalia SCN2B 35
  • 99.38 (n)
  • 99.53 (a)
SCN2B 36
  • 100 (a)
(Rattus norvegicus)
Mammalia Scn2b 35
  • 88.53 (n)
  • 93.02 (a)
(Monodelphis domestica)
Mammalia SCN2B 36
  • 82 (a)
(Gallus gallus)
Aves SCN2B 35
  • 77.05 (n)
  • 72.56 (a)
SCN2B 36
  • 73 (a)
(Anolis carolinensis)
Reptilia SCN2B 36
  • 66 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia scn2b 35
  • 65.7 (n)
  • 63.29 (a)
(Danio rerio)
Actinopterygii scn2b 35
  • 60.33 (n)
  • 53.66 (a)
scn2b 36
  • 48 (a)
Species with no ortholog for SCN2B:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • platypus (Ornithorhynchus anatinus)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for SCN2B Gene

Gene Tree for SCN2B (if available)
Gene Tree for SCN2B (if available)

Paralogs for SCN2B Gene

Paralogs for SCN2B Gene

(1) SIMAP similar genes for SCN2B Gene using alignment to 2 proteins:

genes like me logo Genes that share paralogs with SCN2B: view

Variants for SCN2B Gene

Sequence variations from dbSNP and Humsavar for SCN2B Gene

SNP ID Clin Chr 11 pos Sequence Context AA Info Type
rs17121819 Atrial fibrillation, familial, 14 (ATFB14) 118,168,740(-) CAGGA(C/T)GGAGC reference, missense
rs17121818 - 118,168,682(-) CGCCC(A/G)CCTGC reference, missense
VAR_070229 Atrial fibrillation, familial, 14 (ATFB14)
VAR_070230 -
rs583581 -- 118,165,288(-) ttcCA(A/G)CTGAC utr-variant-3-prime

Structural Variations from Database of Genomic Variants (DGV) for SCN2B Gene

Variant ID Type Subtype PubMed ID
dgv1318n71 CNV Gain 21882294
nsv898412 CNV Gain 21882294
nsv519116 CNV Loss 19592680

Variation tolerance for SCN2B Gene

Residual Variation Intolerance Score: 42.3% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 0.41; 8.92% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for SCN2B Gene

Human Gene Mutation Database (HGMD)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for SCN2B Gene

Disorders for SCN2B Gene

MalaCards: The human disease database

(9) MalaCards diseases for SCN2B Gene - From: OMIM, ClinVar, GeneTests, Orphanet, Swiss-Prot, DISEASES, and GeneCards

Disorder Aliases PubMed IDs
atrial fibrillation, familial, 14
  • atfb14
scn2b-related familial atrial fibrillation
  • atrial fibrillation, familial, 14
atrial fibrillation
  • a-fib
rasmussen encephalitis
  • re
brugada syndrome
  • sudden unexpected nocturnal death syndrome
- elite association - COSMIC cancer census association via MalaCards
Search SCN2B in MalaCards View complete list of genes associated with diseases


  • Atrial fibrillation, familial, 14 (ATFB14) [MIM:615378]: A familial form of atrial fibrillation, a common sustained cardiac rhythm disturbance. Atrial fibrillation is characterized by disorganized atrial electrical activity and ineffective atrial contraction promoting blood stasis in the atria and reduces ventricular filling. It can result in palpitations, syncope, thromboembolic stroke, and congestive heart failure. {ECO:0000269 PubMed:19808477}. Note=The disease is caused by mutations affecting the gene represented in this entry.
  • Note=Genetic variations in SCN2B may be involved in Brugada syndrome (PubMed:23559163). This tachyarrhythmia is characterized by right bundle branch block and ST segment elevation on an electrocardiogram (ECG). It can cause the ventricles to beat so fast that the blood is prevented from circulating efficiently in the body. When this situation occurs, the individual will faint and may die in a few minutes if the heart is not reset. {ECO:0000269 PubMed:23559163}.

Relevant External Links for SCN2B

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with SCN2B: view

No data available for Genatlas for SCN2B Gene

Publications for SCN2B Gene

  1. Mutations in sodium channel I^1- and I^2-subunits associated with atrial fibrillation. (PMID: 19808477) Watanabe H. … Roden D.M. (Circ Arrhythm Electrophysiol 2009) 3 4 48 67
  2. The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. (PMID: 19948168) Sonsalla P.K. … Buckley B. (Exp. Neurol. 2010) 25 26
  3. Zonisamide in the treatment of epilepsy. (PMID: 20001433) Schulze-Bonhage A. (Expert Opin Pharmacother 2010) 25 26
  4. Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. (PMID: 19557119) Zaccara G. … Specchio L.M. (Neuropsychiatr Dis Treat 2009) 25 26
  5. [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. (PMID: 20025128) Janszky J. (Ideggyogy Sz 2009) 25 26

Products for SCN2B Gene

Sources for SCN2B Gene