Gene
Entrez ID Entrez Gene ID - the GENE ID in NCBI Gene database.
2706
Gene name Gene Name - the full gene name approved by the HGNC.
Gap junction protein beta 2
Gene symbol Gene Symbol - the official gene symbol approved by the HGNC.
GJB2
Synonyms (NCBI Gene) Gene synonyms aliases
BAPS, CX26, DFNA3, DFNA3A, DFNB1, DFNB1A, HID, KID, NSRD1, PPK
Chromosome Chromosome number
13
Chromosome location Chromosomal Location - indicates the cytogenetic location of the gene or region on the chromosome.
13q12.11
Summary Summary of gene provided in NCBI Entrez Gene.
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.
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.
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 information of associated ontologies with gene provided by GO database.
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 ids of gene in databases such as OMIM, HGNC, ENSEMBLE.
MIM HGNC e!Ensembl
121011 4284 ENSG00000165474
Protein
UniProt ID 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
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Associated diseases Disease associations categorized as Causal (pathogenic variants), Unknown (uncertain genetic evidence), or Text Mining (literature-based associations)
Causal Diseases caused by PATHOGENIC or LIKELY PATHOGENIC variants from ClinVar only
Disease merge term Disease name dbSNP ID References
Deafness Autosomal recessive nonsyndromic hearing loss 1A, Autosomal dominant nonsyndromic hearing loss 3A rs774518779, rs111033297, rs1555341926, rs80338940, rs199883710, rs80338942, rs80338944, rs1801002, rs1378679640, rs80338943, rs104894413, rs750188782, rs104894398, rs587783646, rs111033451
View all (89 more)
N/A
hearing impairment Hearing impairment rs80338939, rs587783646, rs111033253, rs111033294, rs80338940, rs80338942, rs104894398, rs143343083, rs1801002, rs104894396, rs80338945, rs72474224, rs76434661, rs104894408, rs80338947
View all (10 more)
N/A
hearing loss Hearing loss rs28931594, rs730880338, rs998045226, rs111033253, rs397516874, rs80338940, rs104894398, rs80338942, rs375759781, rs143343083, rs104894396, rs80338941, rs80338945, rs76434661, rs1057517519
View all (13 more)
N/A
Hearing Loss Hearing loss, autosomal recessive rs80338944, rs104894402, rs150529554 N/A
Unknown Includes: (1) ClinVar NON-pathogenic variants (Uncertain, Benign, Conflicting, VUS), (2) GenCC associations, (3) GWAS associations, (4) CBGDA evidence-based associations. NOTE: Diseases with pathogenic evidence are excluded to avoid conflicts.
Disease merge term Disease name Evidence References Source
Ichthyosis Hystrix ichthyosis, hystrix-like, with hearing loss N/A N/A GenCC
KID Syndrome KID syndrome N/A N/A GenCC
Associations from Text Mining Disease 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