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Aliases for GJC3 Gene

Aliases for GJC3 Gene

  • Gap Junction Protein Gamma 3 2 3 5
  • Gap Junction Protein, Gamma 3, 30.2kDa 2 3
  • Gap Junction Epsilon-1 Protein 3 4
  • Connexin-30.2 3 4
  • Connexin-31.3 3 4
  • GJE1 3 4
  • Gap Junction Protein, Epsilon 1, 29kDa 2
  • Gap Junction Gamma-3 Protein 3
  • Connexin 30.2 2
  • Connexin 29 3
  • CX30.2 3
  • CX31.3 3
  • Cx30.2 4
  • Cx31.3 4
  • CX29 3

External Ids for GJC3 Gene

Previous HGNC Symbols for GJC3 Gene

  • GJE1

Previous GeneCards Identifiers for GJC3 Gene

  • GC07M099360
  • GC07M099520
  • GC07M094156

Summaries for GJC3 Gene

Entrez Gene Summary for GJC3 Gene

  • This gene encodes a gap junction protein. The encoded protein, also known as a connexin, plays a role in formation of gap junctions, which provide direct connections between neighboring cells. Mutations in this gene have been reported to be associated with nonsyndromic hearing loss.[provided by RefSeq, Feb 2010]

GeneCards Summary for GJC3 Gene

GJC3 (Gap Junction Protein Gamma 3) is a Protein Coding gene. Diseases associated with GJC3 include Mental Retardation, Enteropathy, Deafness, Peripheral Neuropathy, Ichthyosis, And Keratoderma and Charcot-Marie-Tooth Disease, X-Linked Dominant, 1. Gene Ontology (GO) annotations related to this gene include protein homodimerization activity. An important paralog of this gene is GJB1.

UniProtKB/Swiss-Prot for GJC3 Gene

  • One gap junction consists of a cluster of closely packed pairs of transmembrane channels, the connexons, through which materials of low MW diffuse from one cell to a neighboring cell.

Tocris Summary for GJC3 Gene

  • Gap channels (gap junctions) are specialized cell-cell contacts that provide direct intracellular communication. They allow passive diffusion of molecules up to 1 kDa, including nutrients, metabolites (glucose), ions (K+, Ca2+) and second messengers (IP3, cAMP).

Gene Wiki entry for GJC3 Gene

Additional gene information for GJC3 Gene

No data available for CIViC summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for GJC3 Gene

Genomics for GJC3 Gene

GeneHancer (GH) Regulatory Elements for GJC3 Gene

Promoters and enhancers for GJC3 Gene
GeneHancer (GH) Identifier GH Type GH
GH Sources Gene Association Score Total Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor
Binding Sites
Gene Targets
GH07J099929 Promoter/Enhancer 1.9 EPDnew Ensembl ENCODE 650.4 +5.4 5388 1 HDAC1 PKNOX1 ARID4B SIN3A ZBTB40 ZNF48 RAD21 ZNF335 GLIS2 ZNF366 ENSG00000237640 GJC3 ZNF3 TRIM4 ZSCAN25 LOC100131859 ZSCAN21 ZNF655 STAG3L5P GIGYF1
GH07J099975 Promoter/Enhancer 1.4 EPDnew ENCODE 650.3 -41.1 -41119 1 FOXA2 MLX ZFP64 ARID4B DMAP1 ZNF48 YY1 FOS NFKBIZ RXRA AZGP1 GJC3 TRIM4 AZGP1P1
GH07J099935 Promoter 0.9 EPDnew 650.7 -0.2 -171 0.1 HDAC1 L3MBTL2 MNT ZNF592 SP1 CC2D1A NFIC SMARCA4 GABPB1 TRIM24 ENSG00000199711 GC07P099978 GJC3 ENSG00000237640
GH07J099934 Promoter 0.5 EPDnew 650.7 +0.8 785 0.1 GJC3 LAMTOR4 C7orf43 GAL3ST4 GPC2 ENSG00000237640
GH07J099990 Enhancer 1.3 Ensembl ENCODE dbSUPER 11.7 -55.9 -55858 0.9 SMAD1 ATF1 ARNT ZNF766 E2F8 ZNF143 ATF7 REST KAT8 NFIL3 LOC100128334 TRIM4 ZSCAN21 GJC3 ENSG00000237640 ZSCAN25 AZGP1P1
- Elite GeneHancer and/or Elite GeneHancer-gene association Download GeneHancer data from 2017 publication | Request up-to-date GeneHancer data (full dataset)

GeneHancers around GJC3 on UCSC Golden Path with GeneCards custom track

Top Transcription factor binding sites by QIAGEN in the GJC3 gene promoter:
  • Spz1
  • Max1
  • CP2
  • SRF (504 AA)
  • SRF
  • TBP
  • Pax-4a
  • FOXJ2
  • FOXJ2 (long isoform)
  • HFH-3

Genomic Locations for GJC3 Gene

Genomic Locations for GJC3 Gene
11,823 bases
Minus strand
6,352 bases
Minus strand

Genomic View for GJC3 Gene

Genes around GJC3 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
GJC3 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for GJC3 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for GJC3 Gene

Proteins for GJC3 Gene

  • Protein details for GJC3 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Gap junction gamma-3 protein
    Protein Accession:
    Secondary Accessions:
    • A4D296
    • Q86XI9

    Protein attributes for GJC3 Gene

    279 amino acids
    Molecular mass:
    31299 Da
    Quaternary structure:
    • A connexon is composed of a hexamer of connexins.

neXtProt entry for GJC3 Gene

Post-translational modifications for GJC3 Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for GJC3 Gene

ENSEMBL proteins:
REFSEQ proteins:

No data available for DME Specific Peptides for GJC3 Gene

Domains & Families for GJC3 Gene

Gene Families for GJC3 Gene

Human Protein Atlas (HPA):
  • Predicted membrane proteins
  • Transporters

Protein Domains for GJC3 Gene

Suggested Antigen Peptide Sequences for GJC3 Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the connexin family. Gamma-type subfamily.
  • Belongs to the connexin family. Gamma-type subfamily.
genes like me logo Genes that share domains with GJC3: view

Function for GJC3 Gene

Molecular function for GJC3 Gene

UniProtKB/Swiss-Prot Function:
One gap junction consists of a cluster of closely packed pairs of transmembrane channels, the connexons, through which materials of low MW diffuse from one cell to a neighboring cell.

Phenotypes From GWAS Catalog for GJC3 Gene

Gene Ontology (GO) - Molecular Function for GJC3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0042803 protein homodimerization activity IEA --
GO:0086077 NOT gap junction channel activity involved in AV node cell-bundle of His cell electrical coupling NAS 21742272
genes like me logo Genes that share ontologies with GJC3: view
genes like me logo Genes that share phenotypes with GJC3: view

Animal Models for GJC3 Gene

MGI Knock Outs for GJC3:
  • Gjc3 Gjc3<tm1.1Kwi>
  • Gjc3 Gjc3<tm1Paul>

Animal Model Products

Clone Products

No data available for Enzyme Numbers (IUBMB) , Human Phenotype Ontology , Transcription Factor Targets and HOMER Transcription for GJC3 Gene

Localization for GJC3 Gene

Subcellular locations from UniProtKB/Swiss-Prot for GJC3 Gene

Cell membrane; Multi-pass membrane protein. Cell junction, gap junction.

Subcellular locations from

Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
COMPARTMENTS Subcellular localization image for GJC3 gene
Compartment Confidence
plasma membrane 4

Gene Ontology (GO) - Cellular Components for GJC3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005921 gap junction IEA --
GO:0005922 connexin complex IEA --
GO:0016020 membrane IEA --
GO:0016021 integral component of membrane IEA --
GO:0030054 cell junction IEA --
genes like me logo Genes that share ontologies with GJC3: view

No data available for Subcellular locations from the Human Protein Atlas (HPA) for GJC3 Gene

Pathways & Interactions for GJC3 Gene

No Data Available

Gene Ontology (GO) - Biological Process for GJC3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0007154 cell communication IEA --
GO:0007605 sensory perception of sound IEA --
GO:0042552 myelination IEA --
GO:0086053 NOT AV node cell to bundle of His cell communication by electrical coupling NAS 21742272
genes like me logo Genes that share ontologies with GJC3: view

No data available for Pathways by source and SIGNOR curated interactions for GJC3 Gene

Drugs & Compounds for GJC3 Gene

(9) Drugs for GJC3 Gene - From: DGIdb, IUPHAR, and Tocris

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Carbenoxolone Experimental Pharma Inhibitor 0
Flufenamic Acid Experimental Pharma Channel blocker, Inhibitor, Pore Blocker, Antagonist Calcium-activated chloride channel blocker; NSAID. Also activates TRPC6 1
octanol Investigational Pharma Inhibitor 0
Gap 27 Pharma Selective gap junction blocker 0
Ca<sup>2+</sup> Pharma Activator, Full agonist, Agonist, Inhibitor, Antagonist, Channel blocker 0

(5) Tocris Compounds for GJC3 Gene

Compound Action Cas Number
10Panx Panx-1 mimetic inhibitory peptide; blocks pannexin-1 gap junctions 955091-53-9
Carbenoxolone disodium Gap junction blocker. Also inhibitor of 11 beta-hydroxysteroid dehydrogenase 7421-40-1
Gap 26 Gap junction blocker; inhibits smooth muscle contraction and IP3-mediated ATP release 197250-15-0
Gap 27 Selective gap junction blocker 198284-64-9
Scrambled 10Panx Scrambled version of 10Panx (Cat. No. 3348), Panx-1 mimetic inhibitory peptide 1315378-72-3
genes like me logo Genes that share compounds with GJC3: view

Transcripts for GJC3 Gene

mRNA/cDNA for GJC3 Gene

(1) REFSEQ mRNAs :
(5) Additional mRNA sequences :
(1) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Unigene Clusters for GJC3 Gene

Gap junction protein, gamma 3, 30.2kDa:
Representative Sequences:

Clone Products

Alternative Splicing Database (ASD) splice patterns (SP) for GJC3 Gene

No ASD Table

Relevant External Links for GJC3 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for GJC3 Gene

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and CGAP SAGE for GJC3 Gene

mRNA differential expression in normal tissues according to GTEx for GJC3 Gene

This gene is overexpressed in Nerve - Tibial (x11.9), Pancreas (x6.7), Breast - Mammary Tissue (x6.0), and Minor Salivary Gland (x5.4).

Protein differential expression in normal tissues from HIPED for GJC3 Gene

This gene is overexpressed in Spinal cord (69.0).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB and MOPED for GJC3 Gene

Protein tissue co-expression partners for GJC3 Gene

NURSA nuclear receptor signaling pathways regulating expression of GJC3 Gene:


SOURCE GeneReport for Unigene cluster for GJC3 Gene:


mRNA Expression by UniProt/SwissProt for GJC3 Gene:

Tissue specificity: CNS specific. Expression is restricted to brain, spinal cord, and sciatic nerve. According to PubMed:12881038, expression is abundant in skeletal muscle, liver, and heart, and to a minor degree in pancreas and kidney.

Evidence on tissue expression from TISSUES for GJC3 Gene

  • Nervous system(4.4)
  • Pancreas(4.2)
genes like me logo Genes that share expression patterns with GJC3: view

No data available for Phenotype-based relationships between genes and organs from Gene ORGANizer for GJC3 Gene

Orthologs for GJC3 Gene

This gene was present in the common ancestor of chordates.

Orthologs for GJC3 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia GJC3 34 33
  • 99.52 (n)
(Canis familiaris)
Mammalia GJC3 34 33
  • 85.4 (n)
(Bos Taurus)
Mammalia GJC3 34 33
  • 81.21 (n)
(Mus musculus)
Mammalia Gjc3 16 34 33
  • 74.84 (n)
(Rattus norvegicus)
Mammalia Gjc3 33
  • 73.93 (n)
(Anolis carolinensis)
Reptilia GJC3 34
  • 39 (a)
sea squirt
(Ciona savignyi)
Ascidiacea -- 34
  • 13 (a)
-- 34
  • 12 (a)
-- 34
  • 6 (a)
Species where no ortholog for GJC3 was found in the sources mined by GeneCards:
  • 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)
  • chicken (Gallus gallus)
  • 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)
  • oppossum (Monodelphis domestica)
  • 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 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)
  • tropical clawed frog (Silurana tropicalis)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)
  • zebrafish (Danio rerio)

Evolution for GJC3 Gene

Gene Tree for GJC3 (if available)
Gene Tree for GJC3 (if available)
Evolutionary constrained regions (ECRs) for GJC3: view image

Paralogs for GJC3 Gene

Paralogs for GJC3 Gene

(9) SIMAP similar genes for GJC3 Gene using alignment to 1 proteins:

  • CXG3_HUMAN Pseudogenes for GJC3 Gene

genes like me logo Genes that share paralogs with GJC3: view

Variants for GJC3 Gene

Sequence variations from dbSNP and Humsavar for GJC3 Gene

SNP ID Clin Chr 07 pos Variation AA Info Type
rs1000151093 -- 99,925,355(-) G/T intron_variant
rs1000336889 -- 99,931,221(-) G/A upstream_transcript_variant
rs1001102546 -- 99,926,731(-) A/G intron_variant
rs1001156367 -- 99,926,909(-) A/G intron_variant
rs1002101702 -- 99,927,815(-) G/T intron_variant

Structural Variations from Database of Genomic Variants (DGV) for GJC3 Gene

Variant ID Type Subtype PubMed ID
esv3614286 OTHER inversion 21293372
nsv607930 CNV loss 21841781

Variation tolerance for GJC3 Gene

Residual Variation Intolerance Score: 69.6% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 3.00; 49.90% of all genes are more intolerant (likely to be disease-causing)

Additional Variant Information for GJC3 Gene

Human Gene Mutation Database (HGMD)
SNPedia medical, phenotypic, and genealogical associations of SNPs for

SNP Genotyping and Copy Number Assay Products

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for GJC3 Gene

Disorders for GJC3 Gene

MalaCards: The human disease database

(3) MalaCards diseases for GJC3 Gene - From: HGMD and DISEASES

- elite association - COSMIC cancer census association via MalaCards
Search GJC3 in MalaCards View complete list of genes associated with diseases

Additional Disease Information for GJC3

Genetic Association Database
Human Genome Epidemiology Navigator
ATLAS of Genetics and Cytogenetics in Oncology and Haematology
genes like me logo Genes that share disorders with GJC3: view

No data available for UniProtKB/Swiss-Prot and Genatlas for GJC3 Gene

Publications for GJC3 Gene

  1. Connexin29 is uniquely distributed within myelinating glial cells of the central and peripheral nervous systems. (PMID: 12151525) Altevogt BM … Paul DL (The Journal of neuroscience : the official journal of the Society for Neuroscience 2002) 3 4 22 58
  2. Prospective variants screening of connexin genes in children with hearing impairment: genotype/phenotype correlation. (PMID: 20593197) Yang JJ … Li SY (Human genetics 2010) 3 44 58
  3. Mutations in the connexin 29 gene are not a major cause of nonsyndromic hearing impairment in India. (PMID: 20632892) Ramchander PV … Panda AK (Genetic testing and molecular biomarkers 2010) 3 44 58
  4. A novel mutation in the connexin 29 gene may contribute to nonsyndromic hearing loss. (PMID: 19876648) Hong HM … Li SY (Human genetics 2010) 3 22 58
  5. Identification of novel variants in the Cx29 gene of nonsyndromic hearing loss patients using buccal cells and restriction fragment length polymorphism method. (PMID: 19657183) Wang WH … Li SY (Audiology & neuro-otology 2010) 3 22 58

Products for GJC3 Gene

Sources for GJC3 Gene

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