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Aliases for GJA9 Gene

Aliases for GJA9 Gene

  • Gap Junction Protein Alpha 9 2 3 5
  • Gap Junction Protein, Alpha 9, 59kDa 2 3
  • Connexin 59 2 3
  • Connexin-58 3 4
  • GJA10 3 4
  • CX58 3 4
  • CX59 3 4
  • Gap Junction Protein, Alpha 10, 59kDa 2
  • Gap Junction Alpha-10 Protein 4
  • Gap Junction Alpha-9 Protein 3
  • Gap Junction Alpha 10 3
  • Connexin-59 4

External Ids for GJA9 Gene

Previous HGNC Symbols for GJA9 Gene

  • GJA10

Previous GeneCards Identifiers for GJA9 Gene

  • GC15M032832
  • GC01M039112
  • GC01M039339
  • GC01M037457

Summaries for GJA9 Gene

Entrez Gene Summary for GJA9 Gene

  • Connexins, such as GJA9, are involved in the formation of gap junctions, intercellular conduits that directly connect the cytoplasms of contacting cells. Each gap junction channel is formed by docking of 2 hemichannels, each of which contains 6 connexin subunits (Sohl et al., 2003 [PubMed 12881038]).[supplied by OMIM, Mar 2008]

GeneCards Summary for GJA9 Gene

GJA9 (Gap Junction Protein Alpha 9) is a Protein Coding gene. Among its related pathways are Gap junction trafficking and Vesicle-mediated transport. An important paralog of this gene is GJA10.

UniProtKB/Swiss-Prot for GJA9 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 GJA9 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).

Additional gene information for GJA9 Gene

No data available for CIViC summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for GJA9 Gene

Genomics for GJA9 Gene

GeneHancer (GH) Regulatory Elements for GJA9 Gene

Promoters and enhancers for GJA9 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
GH01I038881 Promoter 0.5 EPDnew 550.8 +0.0 19 0.1 GJA9-MYCBP GJA9 ENSG00000274944 ENSG00000273637 LOC105378663
GH01I038989 Promoter/Enhancer 2.3 EPDnew Ensembl ENCODE dbSUPER 10.4 -109.6 -109645 4 HDGF SMAD1 FOXA2 ARNT ARID4B SIN3A DMAP1 YY1 POLR2B ZNF766 AKIRIN1 NDUFS5 RHBDL2 GJA9 MYCBP UTP11 PIR42637 GC01M038902
GH01I039025 Promoter/Enhancer 2.1 EPDnew Ensembl ENCODE 10.1 -144.9 -144940 2.4 HDGF PKNOX1 SMAD1 ARID4B SIN3A DMAP1 YBX1 ZNF2 YY1 SLC30A9 NDUFS5 PPIE MYCBP AKIRIN1 PPIEL GJA9 RRAGC TRIT1 LOC105378663 GC01M038902
GH01I039102 Promoter/Enhancer 1.7 Ensembl ENCODE dbSUPER 9.7 -224.1 -224105 7.1 PKNOX1 FOXA2 SMAD1 ARNT ARID4B SIN3A DMAP1 YY1 ZNF766 ZNF213 KIAA0754 MACF1 ENSG00000226438 OXCT2P1 ENSG00000182109 GJA9 MYCBP PABPC4 BMP8A OXCT2
GH01I039085 Enhancer 1.2 FANTOM5 Ensembl ENCODE dbSUPER 10.2 -205.3 -205281 2 SMARCE1 MEIS2 PKNOX1 JUN DPF2 ZNF335 FOSL1 ZFHX2 PRDM10 FOS RNU6-608P GJA9 MYCBP OXCT2P1 MACF1 KIAA0754 GC01M039121
- Elite GeneHancer and/or Elite GeneHancer-gene association Download GeneHancer data dump

GeneHancers around GJA9 on UCSC Golden Path with GeneCards custom track

Top Transcription factor binding sites by QIAGEN in the GJA9 gene promoter:

Genomic Locations for GJA9 Gene

Genomic Locations for GJA9 Gene
7,560 bases
Minus strand

Genomic View for GJA9 Gene

Genes around GJA9 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
GJA9 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for GJA9 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for GJA9 Gene

Proteins for GJA9 Gene

  • Protein details for GJA9 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Gap junction alpha-9 protein
    Protein Accession:
    Secondary Accessions:
    • B2R722
    • B3KVQ2
    • Q5TA63
    • Q96KG0

    Protein attributes for GJA9 Gene

    515 amino acids
    Molecular mass:
    58842 Da
    Quaternary structure:
    • A connexon is composed of a hexamer of connexins.

    Alternative splice isoforms for GJA9 Gene


neXtProt entry for GJA9 Gene

Post-translational modifications for GJA9 Gene

No Post-translational modifications

Other Protein References for GJA9 Gene

ENSEMBL proteins:
REFSEQ proteins:

No data available for DME Specific Peptides for GJA9 Gene

Domains & Families for GJA9 Gene

Gene Families for GJA9 Gene

Human Protein Atlas (HPA):
  • Predicted membrane proteins

Protein Domains for GJA9 Gene

Suggested Antigen Peptide Sequences for GJA9 Gene

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the connexin family. Alpha-type (group II) subfamily.
  • Belongs to the connexin family. Alpha-type (group II) subfamily.
genes like me logo Genes that share domains with GJA9: view

Function for GJA9 Gene

Molecular function for GJA9 Gene

GENATLAS Biochemistry:
gap junction protein alpha 9,31kDa,(connexin 31),expressed in epidermis,mouse Cx 31 homolog,monomer of the connexon (six subunits)
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 GJA9 Gene

Phenotypes for GJA9 Gene

genes like me logo Genes that share phenotypes with GJA9: view

Clone Products

No data available for Enzyme Numbers (IUBMB) , Gene Ontology (GO) - Molecular Function , Human Phenotype Ontology , Animal Models , Transcription Factor Targets and HOMER Transcription for GJA9 Gene

Localization for GJA9 Gene

Subcellular locations from UniProtKB/Swiss-Prot for GJA9 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 GJA9 gene
Compartment Confidence
plasma membrane 4

Gene Ontology (GO) - Cellular Components for GJA9 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 GJA9: view

No data available for Subcellular locations from the Human Protein Atlas (HPA) for GJA9 Gene

Pathways & Interactions for GJA9 Gene

genes like me logo Genes that share pathways with GJA9: view

Interacting Proteins for GJA9 Gene

STRING Interaction Network Preview (showing 5 interactants - click image to see 20)
Selected Interacting proteins: P57773-CXA9_HUMAN ENSP00000350415 for GJA9 Gene via IID STRING

Gene Ontology (GO) - Biological Process for GJA9 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0007154 cell communication IEA --
genes like me logo Genes that share ontologies with GJA9: view

No data available for SIGNOR curated interactions for GJA9 Gene

Drugs & Compounds for GJA9 Gene

(10) Drugs for GJA9 Gene - From: ApexBio, 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 1
octanol Investigational Pharma Inhibitor 0
10Panx Pharma Panx-1 mimetic inhibitor, Panx-1 mimetic inhibitory peptide; blocks pannexin-1 gap junctions 0
Ca<sup>2+</sup> Pharma Activator 0

(5) Tocris Compounds for GJA9 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

(2) ApexBio Compounds for GJA9 Gene

Compound Action Cas Number
10Panx Panx-1 mimetic inhibitor 955091-53-9
Scrambled 10Panx Panx-1 mimetic inhibitory peptide, blocks pannexin-1 gap junctions 1315378-72-3
genes like me logo Genes that share compounds with GJA9: view

Drug Products

Transcripts for GJA9 Gene

mRNA/cDNA for GJA9 Gene

Clone Products

Alternative Splicing Database (ASD) splice patterns (SP) for GJA9 Gene

ExUns: 1 ^ 2 ^ 3 ^ 4a · 4b ^ 5 ^ 6a · 6b ^ 7 ^ 8a · 8b
SP1: - - - -
SP2: -
SP3: - - -
SP5: -

Relevant External Links for GJA9 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for GJA9 Gene

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and CGAP SAGE for GJA9 Gene

NURSA nuclear receptor signaling pathways regulating expression of GJA9 Gene:


mRNA Expression by UniProt/SwissProt for GJA9 Gene:

Tissue specificity: Highly abundant in skeletal muscle. Also detected in testis.
genes like me logo Genes that share expression patterns with GJA9: view

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery , mRNA differential expression in normal tissues , Protein differential expression in normal tissues , Protein expression , Protein tissue co-expression partners , Evidence on tissue expression from TISSUES and Phenotype-based relationships between genes and organs from Gene ORGANizer for GJA9 Gene

Orthologs for GJA9 Gene

This gene was present in the common ancestor of chordates.

Orthologs for GJA9 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia GJA9 34 33
  • 99.81 (n)
(Bos Taurus)
Mammalia GJA9 34 33
  • 86.65 (n)
(Canis familiaris)
Mammalia GJA9 34 33
  • 86.09 (n)
(Ornithorhynchus anatinus)
Mammalia GJA9 34
  • 53 (a)
(Mus musculus)
Mammalia Gja1 34
  • 32 (a)
(Gallus gallus)
Aves GJA9 33 34
  • 60.5 (n)
tropical clawed frog
(Silurana tropicalis)
Amphibia gja9 33
  • 59.9 (n)
(Danio rerio)
Actinopterygii cx52.9 34 33
  • 58.28 (n)
CX55.5 34
  • 49 (a)
Species where no ortholog for GJA9 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)
  • 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)
  • lizard (Anolis carolinensis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • oppossum (Monodelphis domestica)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rat (Rattus norvegicus)
  • 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 GJA9 Gene

Gene Tree for GJA9 (if available)
Gene Tree for GJA9 (if available)

Paralogs for GJA9 Gene

Paralogs for GJA9 Gene

(19) SIMAP similar genes for GJA9 Gene using alignment to 3 proteins:

genes like me logo Genes that share paralogs with GJA9: view

Variants for GJA9 Gene

Sequence variations from dbSNP and Humsavar for GJA9 Gene

SNP ID Clin Chr 01 pos Variation AA Info Type
rs1000430978 -- 38,880,954(-) G/A intron_variant
rs1001189791 -- 38,878,520(-) A/G intron_variant
rs1001570331 -- 38,880,852(-) A/G/T intron_variant
rs1001674950 -- 38,880,188(-) A/T intron_variant
rs1002084368 -- 38,874,208(-) A/G 3_prime_UTR_variant

Structural Variations from Database of Genomic Variants (DGV) for GJA9 Gene

Variant ID Type Subtype PubMed ID
esv3585774 CNV loss 21293372

Variation tolerance for GJA9 Gene

Residual Variation Intolerance Score: 56% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 5.08; 68.98% of all genes are more intolerant (likely to be disease-causing)

Additional Variant Information for GJA9 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 GJA9 Gene

Disorders for GJA9 Gene

Additional Disease Information for GJA9

Genetic Association Database
Human Genome Epidemiology Navigator
ATLAS of Genetics and Cytogenetics in Oncology and Haematology

No disorders were found for GJA9 Gene.

No data available for MalaCards , UniProtKB/Swiss-Prot and Genatlas for GJA9 Gene

Publications for GJA9 Gene

  1. Personalized smoking cessation: interactions between nicotine dose, dependence and quit-success genotype score. (PMID: 20379614) Rose JE … Uhl GR (Molecular medicine (Cambridge, Mass.) 2010) 3 44 58
  2. Expression profiles of the novel human connexin genes hCx30.2, hCx40.1, and hCx62 differ from their putative mouse orthologues. (PMID: 12881038) Söhl G … Willecke K (Cell communication & adhesion 2003) 3 4 58
  3. Selected reaction monitoring mass spectrometry reveals the dynamics of signaling through the GRB2 adaptor. (PMID: 21706016) Bisson N … Pawson T (Nature biotechnology 2011) 3 58
  4. Expression of connexin genes in the human retina. (PMID: 20979653) Söhl G … Willecke K (BMC ophthalmology 2010) 3 58
  5. Single-nucleotide polymorphisms, acute rejection, and severity of tubulitis in kidney transplantation, accounting for center-to-center variation. (PMID: 21085059) Israni A … DeKAF Investigators (Transplantation 2010) 44 58

Products for GJA9 Gene

Sources for GJA9 Gene

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