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 categorized as Causal (Pathogenic/Likely Pathogenic) or Unknown.
1052
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Autism spectrum disorder Pathogenic rs80338943, rs111033204 RCV003313925
RCV003313933
Autosomal dominant keratitis-ichthyosis-hearing loss syndrome Likely pathogenic; Pathogenic rs2137307322, rs1555341945, rs35887622, rs28931594, rs104894408, rs28929485, rs72561723, rs1566528711 RCV001730114
RCV004565138
RCV004783726
RCV000018546
RCV000018548
RCV000018549
RCV000018556
RCV000018561
RCV000735855
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
RCV000412297
RCV000411531
RCV001112462
RCV001196233
RCV000409300
RCV000018535
RCV000410166
RCV000409625
RCV000018542
RCV000018544
RCV000018545
RCV001002768
RCV000018553
RCV000018555
RCV003147300
RCV000018559
RCV000410225
RCV000412324
RCV000409438
RCV000409815
RCV000411084
RCV000410120
RCV000410947
RCV000411693
RCV000410366
RCV001109960
RCV000022511
RCV000487475
RCV000623392
RCV001836634
RCV000411009
RCV000411497
RCV000412394
RCV000409236
RCV000411577
RCV001078465
RCV000721922
RCV001809798
Autosomal recessive nonsyndromic hearing loss 104 Pathogenic; Likely pathogenic rs80338939, rs80338940 RCV003335044
RCV003458323
Unknown Diseases with uncertain, conflicting, or no pathogenic evidence in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Autosomal recessive nonsyndromic hearing loss 12 Uncertain significance rs878853241 RCV000225073
Keratitis ichthyosis and deafness syndrome Uncertain significance; Benign rs886050025, rs11839674 RCV000259327
RCV000329077
Lung cancer Uncertain significance rs551625098 RCV005901438
Nonsyndromic Hearing Loss, Dominant Uncertain significance; Benign rs886050025, rs11839674 RCV000319140
RCV000398293
Associations from Text MiningDisease associations identified through Pubtator
Disease Name Relationship Type References
3 Hydroxy 3 Methylglutaryl CoA Lyase Deficiency Associate 18278224, 24804242, 26399936, 26896187, 33638616
Abnormalities Drug Induced Associate 30287322
Acrocephalosyndactylia Associate 15482471
Adenocarcinoma of Lung Associate 32243356, 34111567, 35196203, 35571564, 35689561, 35783192
Age Related Hearing Impairment 1 Associate 24959830
Anophthalmia with pulmonary hypoplasia Associate 32228510
Arthritis Psoriatic Associate 22298274, 9008232, 9665389
Auditory Neuropathy Nonsyndromic Recessive Associate 33466560
Autoimmune Lymphoproliferative Syndrome Associate 21298644
Bone Diseases Associate 19235794, 21298644