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GeneE
1 sources retrieved · Most recent: April 2026 · Index updated 14 days ago
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OR3A3
olfactory receptor family 3 subfamily A member 3
Chromosome 17 · 17p13.2
NCBI Gene: 8392Ensembl: ENSG00000159961.3HGNC: HGNC:8284UniProt: A0A126GWB3
10PubMed Papers
5Diseases
0Drugs
0Pathogenic Variants
FUNCTIONAL ROLE
Receptor
DATA QUALITY
✓ Experimental GO Evidence✓ Swiss-Prot Reviewed
signal transductionplasma membraneolfactory receptor activitymembranegastric carcinomaautismMental deteriorationdiabetes mellitus
✦AI Summary

OR3A3 encodes an olfactory receptor with odorant receptor activity localized to the plasma membrane, functioning in signal transduction. Based on limited published evidence, OR3A3 shows a female-specific protective association with amyloid-beta (Aβ) accumulation in Alzheimer's disease neuropathology 1. This association was identified and replicated in single-nucleus transcriptomic analysis of dorsolateral prefrontal cortex neurons, suggesting potential sex-specific mechanisms in neurodegeneration.

Sources cited
1
OR3A3 identified as a female-specific gene with protective association to amyloid-beta accumulation in Alzheimer's disease pathology, replicated in neuronal cell types
PMID: 41457042
⚠Limited data available — This gene has 1 indexed publication. Summary and analysis may be incomplete.
Disease Associationsⓘ5
gastric carcinomaOpen Targets
0.01Suggestive
autismOpen Targets
0.00Suggestive
Mental deteriorationOpen Targets
0.00Suggestive
diabetes mellitusOpen Targets
0.00Suggestive
AnosmiaOpen Targets
0.00Suggestive
Pathogenic Variants
No pathogenic variants reported on ClinVar for this gene.
View on ClinVar ↗
Related Genes
LOC124905359Shared pathway100%OR4M2BShared pathway100%LOC112268384Shared pathway100%OR4N4CShared pathway100%OR9G9Shared pathway100%OR2A2Shared pathway100%
Tissue Expression6 tissues
Heart
0%
Ovary
0%
Bone Marrow
0%
Liver
0%
Brain
0%
Lung
0%
Gene Interaction Network
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OR3A3LOC124905359OR4M2BLOC112268384OR4N4COR9G9OR2A2
PROTEIN STRUCTURE
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AlphaFoldAI-predicted · UniProt P47888
View on AlphaFold ↗
RankingsWhere OR3A3 stands among ~20K protein-coding genes
  • #17,127of 20,598
    Most Researched10
Genes detectedOR3A3
Sources retrieved1 papers
Response time—
📄 Sources
1
1
Single-cell landscape of sex-specific drivers of Alzheimer's disease.
PMID: 41457042
Alzheimers Dement · 2025
1.00