Gene Gene information from NCBI Gene database.
Entrez ID 2706
Gene name Gap junction protein beta 2
Gene symbol GJB2
Synonyms (NCBI Gene)
BAPSCX26DFNA3DFNA3ADFNB1DFNB1AHIDKIDNSRD1PPK
Chromosome 13
Chromosome location 13q12.11
Summary This gene encodes a member of the gap junction protein family. The gap junctions were first characterized by electron microscopy as regionally specialized structures on plasma membranes of contacting adherent cells. These structures were shown to consist
SNPs SNP information provided by dbSNP.
141
SNP ID Visualize variation Clinical significance Consequence
rs1801002 C>A,T Uncertain-significance, pathogenic, pathogenic-likely-pathogenic, likely-pathogenic Coding sequence variant, missense variant
rs28929485 G>A,C Pathogenic, uncertain-significance Missense variant, coding sequence variant
rs28931593 C>T Pathogenic Missense variant, coding sequence variant
rs28931594 C>A,T Pathogenic Missense variant, coding sequence variant
rs28931595 C>A,G,T Pathogenic, uncertain-significance Missense variant, coding sequence variant
miRNA miRNA information provided by mirtarbase database.
77
miRTarBase ID miRNA Experiments Reference
MIRT016358 hsa-miR-193b-3p Microarray 20304954
MIRT017821 hsa-miR-335-5p Microarray 18185580
MIRT496250 hsa-miR-4524b-3p PAR-CLIP 22291592
MIRT496249 hsa-miR-1245b-5p PAR-CLIP 22291592
MIRT496248 hsa-miR-3142 PAR-CLIP 22291592
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
31
GO ID Ontology Definition Evidence Reference
GO:0005243 Function Gap junction channel activity IBA
GO:0005243 Function Gap junction channel activity IDA 12767933, 21094651
GO:0005243 Function Gap junction channel activity IEA
GO:0005509 Function Calcium ion binding IDA 26753910
GO:0005515 Function Protein binding IPI 32296183
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
121011 4284 ENSG00000165474
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
P29033
Protein name Gap junction beta-2 protein (Connexin-26) (Cx26)
Protein function Structural component of gap junctions (PubMed:16849369, PubMed:17551008, PubMed:19340074, PubMed:19384972, PubMed:21094651, PubMed:26753910). Gap junctions are dodecameric channels that connect the cytoplasm of adjoining cells. They are formed b
PDB 2ZW3 , 3IZ1 , 3IZ2 , 5ER7 , 5ERA , 5KJ3 , 5KJG , 6UVR , 6UVS , 6UVT , 7QEO , 7QEQ , 7QER , 7QES , 7QET , 7QEU , 7QEV , 7QEW , 7QEY , 8Q9Z , 8QA0 , 8QA1 , 8QA2 , 8QA3
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00029 Connexin 2 215 Connexin Family
Sequence
Sequence length 226
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  Reactome
    Transport of connexons to the plasma membrane
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
77
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Autism spectrum disorder Pathogenic rs80338943, rs111033204 RCV003313925
RCV003313933
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Autosomal dominant keratitis-ichthyosis-hearing loss syndrome Likely pathogenic; Pathogenic rs2137307322, rs1555341945, rs35887622, rs28931594, rs104894408, rs28929485, rs72561723, rs1566528711 RCV001730114
RCV004565138
RCV004783726
RCV000018546
RCV000018548
View all (4 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Autosomal dominant nonsyndromic hearing loss 3A Likely pathogenic; Pathogenic rs587783647, rs786204597, rs532203068, rs35887622, rs104894396, rs104894397, rs80338939, rs80338950, rs80338948, rs80338942, rs104894402, rs80338943, rs80338945, rs104894401, rs104894406
View all (27 more)
RCV000411907
RCV000411925
RCV000490342
RCV000487479
RCV000411010
View all (38 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Autosomal recessive nonsyndromic hearing loss 104 Pathogenic; Likely pathogenic rs80338939, rs80338940 RCV003335044
RCV003458323
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
AUTISM SPECTRUM DISORDERS Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTOSOMAL DOMINANT ISOLATED SENSORINEURAL DEAFNESS TYPE DFNA Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTOSOMAL DOMINANT NONSYNDROMIC HEARING LOSS GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTOSOMAL RECESSIVE ISOLATED SENSORINEURAL DEAFNESS TYPE DFNB Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Adult Medulloblastoma Medulloblastoma BEFREE 30204287
★☆☆☆☆
Found in Text Mining only
Allergic rhinitis (disorder) Allergic rhinitis BEFREE 22391066
★☆☆☆☆
Found in Text Mining only
Allergic sensitization Allergic Sensitization BEFREE 22391066
★☆☆☆☆
Found in Text Mining only
Alopecia Alopecia BEFREE 22031297
★☆☆☆☆
Found in Text Mining only
Alopecia Alopecia HPO_DG
★☆☆☆☆
Found in Text Mining only
Amniotic Bands Amniotic Bands HPO_DG
★☆☆☆☆
Found in Text Mining only
Anaplasia Anaplasia BEFREE 11872644
★☆☆☆☆
Found in Text Mining only
Anophthalmia with pulmonary hypoplasia Anophthalmia Pubtator 32228510 Associate
★☆☆☆☆
Found in Text Mining only
Anxiety Disorders Anxiety Disorder BEFREE 31146170
★☆☆☆☆
Found in Text Mining only
Aphasia Aphasia BEFREE 16549217
★☆☆☆☆
Found in Text Mining only