Gene Gene information from NCBI Gene database.
Entrez ID 2700
Gene name Gap junction protein alpha 3
Gene symbol GJA3
Synonyms (NCBI Gene)
CTRCT14CX46CZP3
Chromosome 13
Chromosome location 13q12.11
Summary The protein encoded by this gene is a connexin and is a component of lens fiber gap junctions. Defects in this gene are a cause of zonular pulverulent cataract type 3 (CZP3). [provided by RefSeq, Jan 2010]
SNPs SNP information provided by dbSNP.
14
SNP ID Visualize variation Clinical significance Consequence
rs121917823 T>C Pathogenic Missense variant, coding sequence variant
rs121917825 G>A Pathogenic Missense variant, coding sequence variant
rs121917827 C>T Pathogenic Missense variant, coding sequence variant
rs140332366 T>A,C,G Pathogenic Missense variant, coding sequence variant
rs397514703 C>T Pathogenic Coding sequence variant, missense variant
miRNA miRNA information provided by mirtarbase database.
131
miRTarBase ID miRNA Experiments Reference
MIRT045585 hsa-miR-149-5p CLASH 23622248
MIRT1019627 hsa-miR-106a CLIP-seq
MIRT1019628 hsa-miR-106b CLIP-seq
MIRT1019629 hsa-miR-1245 CLIP-seq
MIRT1019630 hsa-miR-1256 CLIP-seq
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
17
GO ID Ontology Definition Evidence Reference
GO:0005243 Function Gap junction channel activity IBA
GO:0005243 Function Gap junction channel activity IEA
GO:0005886 Component Plasma membrane IDA 30044662
GO:0005886 Component Plasma membrane IEA
GO:0005921 Component Gap junction IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
121015 4277 ENSG00000121743
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q9Y6H8
Protein name Gap junction alpha-3 protein (Connexin-46) (Cx46)
Protein function Structural component of lens fiber gap junctions (PubMed:30044662). Gap junctions are dodecameric channels that connect the cytoplasm of adjoining cells (By similarity). They are formed by the docking of two hexameric hemichannels, one from each
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00029 Connexin 3 227 Connexin Family
Sequence
MGDWSFLGRLLENAQEHSTVIGKVWLTVLFIFRILVLGAAAEDVWGDEQSDFTCNTQQPG
CENVCYDRAFPISHIRFWALQIIFVSTPTLIYLGHVLHIVRMEEKKKEREEEEQLKRESP
SPKEPPQDNPSSRDDRGRVRMAGALLRTYVFNIIFKTLFEVGFIAGQYFLYGFELKPLYR
CDRWPCPNTVDCFISRPTEKTIFIIFMLAVACASLLLNMLEIYHLGW
KKLKQGVTSRLGP
DASEAPLGTADPPPLPPSSRPPAVAIGFPPYYAHTAAPLGQARAVGYPGAPPPAADFKLL
ALTEARGKGQSAKLYNGHHHLLMTEQNWANQAAERQPPALKAYPAASTPAAPSPVGSSSP
PLAHEAEAGAAPLLLDGSGSSLEGSALAGTPEEEEQAVTTAAQMHQPPLPLGDPGRASKA
SRASSGRARPEDLAI
Sequence length 435
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  Reactome
    Gap junction assembly
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
15
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
Cataract 14 multiple types Likely pathogenic; Pathogenic rs2141138365, rs2141138396, rs1566515310, rs2141138391, rs2141138370, rs374701362, rs2500171362, rs2500173859, rs864309687, rs864309691, rs1114167307, rs864309694, rs121917823, rs1593332981, rs121917825
View all (19 more)
RCV001542775
RCV001542776
RCV001988373
RCV001971221
RCV002049782
View all (29 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Congenital cataracts-facial dysmorphism-neuropathy syndrome Likely pathogenic; Pathogenic rs1114167307 RCV002272192
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Developmental cataract Likely pathogenic; Pathogenic rs864309687, rs864309691, rs1114167307 RCV000203373
RCV000203321
RCV000490765
★★★★☆
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
CATARACT 14 MULTIPLE TYPE S ClinVar, GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CATARACT 14, MULTIPLE TYPE S HPO
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CATARACT, PULVERULENT Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CATARACT, ZONULAR PULVERULENT 3 CTD, Disgenet
CTD, 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
Adrenocortical Carcinoma Hereditary Adrenocortical carcinoma Pubtator 38178039 Associate
★☆☆☆☆
Found in Text Mining only
Amyotrophic Lateral Sclerosis Amyotrophic lateral sclerosis Pubtator 35312356 Associate
★☆☆☆☆
Found in Text Mining only
Atherosclerosis Atherosclerosis Pubtator 28901429 Stimulate
★☆☆☆☆
Found in Text Mining only
Bilateral microphthalmos Microphthalmos BEFREE 29461140
★☆☆☆☆
Found in Text Mining only
Breast Carcinoma Breast Carcinoma BEFREE 20013805, 25383624
★☆☆☆☆
Found in Text Mining only
Breast Neoplasms Breast neoplasm Pubtator 23374644, 40148950 Associate
★☆☆☆☆
Found in Text Mining only
Breast Neoplasms Breast neoplasm Pubtator 34830485 Stimulate
★☆☆☆☆
Found in Text Mining only
Cardiomyopathy Dilated Dilated cardiomyopathy Pubtator 28934278 Inhibit
★☆☆☆☆
Found in Text Mining only
Cataract Cataract Pubtator 10205266, 15208569, 16254549, 16885921, 16971895, 17615540, 20431721, 21386927, 21552498, 21647269, 21897748, 22550389, 22876138, 23592915, 23734083
View all (15 more)
Associate
★☆☆☆☆
Found in Text Mining only
Cataract Cataract BEFREE 15208569, 16885921, 16971895, 17615540, 17893674, 20844585, 21031021, 21681855, 22843197, 22876138, 23300808, 23302783, 23734083, 27228968, 28546921
View all (4 more)
★☆☆☆☆
Found in Text Mining only