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GJA5

Gene

gap junction protein alpha 5

HGNCHGNC:4279EnsemblENSG00000265107NCBI Gene2702
Locus: gene with protein productLocation: 1q21.2

Also known as

Symbols and names change; identity (the HGNC ID) does not. Previous and alternative forms are kept distinct.

Also known asCX40
View full nomenclature history (5)
Alias symbolsCX40
Previous namesgap junction protein, alpha 5, 40kD (connexin 40), gap junction protein, alpha 5, 40kDa (connexin 40), gap junction protein, alpha 5, 40kDa
Alias namesconnexin 40

Associated diseases

via associated_with

Diseases linked to this gene through the canonical GENE→DISEASE (associated_with) relation, drawn from Open Targets' top-ranked associations by overall score — not the full association set. Disease-level detail lives on each disease's own page.

Atrial Fibrillation
Atrial Flutter
Arrhythmias, Cardiac
Pulmonary Disease, Chronic Obstructive
Genetic Diseases, Inborn

Drawn from Open Targets’ top 10 associations by overall score for this gene — the subset resolved to a canonical disease. Lower-ranked associations, and diseases not yet canonicalised, are not shown.

Gene family

HGNC gene-group membership.

Gap junction proteins

Provenance

HGNCCanonical human gene identity from HGNC (release 2026-07-07), updated 2023-01-20.
Open TargetsGene–disease associations from the Open Targets Platform.