OR4A5 Gene

HGNC Family G protein-coupled receptors
Name olfactory receptor, family 4, subfamily A, member 5
Description Olfactory receptors interact with odorant molecules in the nose, to initiate a neuronal response that triggers the perception of a smell. The olfactory receptor proteins are members of a large family of G-protein-coupled receptors (GPCR) arising from single coding-exon genes. Olfactory receptors share a 7-transmembrane domain structure with many neurotransmitter and hormone receptors and are responsible for the recognition and G protein-mediated transduction of odorant signals. The olfactory receptor gene family is the largest in the genome. [provided by RefSeq, Jul 2008]
Summary
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Synonyms OR11-111
Proteins OR4A5_HUMAN
NCBI Gene ID 81318
API
Download Associations
Predicted Functions View OR4A5's ARCHS4 Predicted Functions.
Co-expressed Genes View OR4A5's ARCHS4 Predicted Functions.
Expression in Tissues and Cell Lines View OR4A5's ARCHS4 Predicted Functions.

Functional Associations

OR4A5 has 729 functional associations with biological entities spanning 8 categories (molecular profile, organism, functional term, phrase or reference, disease, phenotype or trait, chemical, structural feature, cell line, cell type or tissue, gene, protein or microRNA) extracted from 44 datasets.

Click the + buttons to view associations for OR4A5 from the datasets below.

If available, associations are ranked by standardized value

Dataset Summary
Allen Brain Atlas Aging Dementia and Traumatic Brain Injury Tissue Sample Gene Expression Profiles tissue samples with high or low expression of OR4A5 gene relative to other tissue samples from the Allen Brain Atlas Aging Dementia and Traumatic Brain Injury Tissue Sample Gene Expression Profiles dataset.
Allen Brain Atlas Developing Human Brain Tissue Gene Expression Profiles by Microarray tissue samples with high or low expression of OR4A5 gene relative to other tissue samples from the Allen Brain Atlas Developing Human Brain Tissue Gene Expression Profiles by Microarray dataset.
BioGPS Human Cell Type and Tissue Gene Expression Profiles cell types and tissues with high or low expression of OR4A5 gene relative to other cell types and tissues from the BioGPS Human Cell Type and Tissue Gene Expression Profiles dataset.
BioGPS Mouse Cell Type and Tissue Gene Expression Profiles cell types and tissues with high or low expression of OR4A5 gene relative to other cell types and tissues from the BioGPS Mouse Cell Type and Tissue Gene Expression Profiles dataset.
CCLE Cell Line Gene CNV Profiles cell lines with high or low copy number of OR4A5 gene relative to other cell lines from the CCLE Cell Line Gene CNV Profiles dataset.
ChEA Transcription Factor Binding Site Profiles transcription factor binding site profiles with transcription factor binding evidence at the promoter of OR4A5 gene from the CHEA Transcription Factor Binding Site Profiles dataset.
ChEA Transcription Factor Targets transcription factors binding the promoter of OR4A5 gene in low- or high-throughput transcription factor functional studies from the CHEA Transcription Factor Targets dataset.
ChEA Transcription Factor Targets 2022 transcription factors binding the promoter of OR4A5 gene in low- or high-throughput transcription factor functional studies from the CHEA Transcription Factor Targets 2022 dataset.
COMPARTMENTS Curated Protein Localization Evidence Scores cellular components containing OR4A5 protein from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.
COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 cellular components co-occuring with OR4A5 protein in abstracts of biomedical publications from the COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 dataset.
COSMIC Cell Line Gene CNV Profiles cell lines with high or low copy number of OR4A5 gene relative to other cell lines from the COSMIC Cell Line Gene CNV Profiles dataset.
COSMIC Cell Line Gene Mutation Profiles cell lines with OR4A5 gene mutations from the COSMIC Cell Line Gene Mutation Profiles dataset.
DepMap CRISPR Gene Dependency cell lines with fitness changed by OR4A5 gene knockdown relative to other cell lines from the DepMap CRISPR Gene Dependency dataset.
DISEASES Experimental Gene-Disease Association Evidence Scores 2025 diseases associated with OR4A5 gene in GWAS datasets from the DISEASES Experimental Gene-Disease Assocation Evidence Scores 2025 dataset.
DISEASES Text-mining Gene-Disease Association Evidence Scores 2025 diseases co-occuring with OR4A5 gene in abstracts of biomedical publications from the DISEASES Text-mining Gene-Disease Assocation Evidence Scores 2025 dataset.
ENCODE Histone Modification Site Profiles histone modification site profiles with high histone modification abundance at OR4A5 gene from the ENCODE Histone Modification Site Profiles dataset.
ENCODE Transcription Factor Binding Site Profiles transcription factor binding site profiles with transcription factor binding evidence at the promoter of OR4A5 gene from the ENCODE Transcription Factor Binding Site Profiles dataset.
ENCODE Transcription Factor Targets transcription factors binding the promoter of OR4A5 gene in ChIP-seq datasets from the ENCODE Transcription Factor Targets dataset.
GEO Signatures of Differentially Expressed Genes for Gene Perturbations gene perturbations changing expression of OR4A5 gene from the GEO Signatures of Differentially Expressed Genes for Gene Perturbations dataset.
GEO Signatures of Differentially Expressed Genes for Kinase Perturbations kinase perturbations changing expression of OR4A5 gene from the GEO Signatures of Differentially Expressed Genes for Kinase Perturbations dataset.
GEO Signatures of Differentially Expressed Genes for Small Molecules small molecule perturbations changing expression of OR4A5 gene from the GEO Signatures of Differentially Expressed Genes for Small Molecules dataset.
GEO Signatures of Differentially Expressed Genes for Transcription Factor Perturbations transcription factor perturbations changing expression of OR4A5 gene from the GEO Signatures of Differentially Expressed Genes for Transcription Factor Perturbations dataset.
GEO Signatures of Differentially Expressed Genes for Viral Infections virus perturbations changing expression of OR4A5 gene from the GEO Signatures of Differentially Expressed Genes for Viral Infections dataset.
GO Biological Process Annotations 2015 biological processes involving OR4A5 gene from the curated GO Biological Process Annotations 2015 dataset.
GO Cellular Component Annotations 2015 cellular components containing OR4A5 protein from the curated GO Cellular Component Annotations 2015 dataset.
GO Molecular Function Annotations 2015 molecular functions performed by OR4A5 gene from the curated GO Molecular Function Annotations 2015 dataset.
GO Molecular Function Annotations 2025 molecular functions performed by OR4A5 gene from the curated GO Molecular Function Annotations 2025 dataset.
GTEx Tissue Gene Expression Profiles tissues with high or low expression of OR4A5 gene relative to other tissues from the GTEx Tissue Gene Expression Profiles dataset.
GWAS Catalog SNP-Phenotype Associations phenotypes associated with OR4A5 gene in GWAS datasets from the GWAS Catalog SNP-Phenotype Associations dataset.
GWAS Catalog SNP-Phenotype Associations 2025 phenotypes associated with OR4A5 gene in GWAS datasets from the GWAS Catalog SNP-Phenotype Associations 2025 dataset.
Heiser et al., PNAS, 2011 Cell Line Gene Expression Profiles cell lines with high or low expression of OR4A5 gene relative to other cell lines from the Heiser et al., PNAS, 2011 Cell Line Gene Expression Profiles dataset.
InterPro Predicted Protein Domain Annotations protein domains predicted for OR4A5 protein from the InterPro Predicted Protein Domain Annotations dataset.
JASPAR Predicted Human Transcription Factor Targets 2025 transcription factors regulating expression of OR4A5 gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Human Transcription Factor Targets dataset.
JASPAR Predicted Transcription Factor Targets transcription factors regulating expression of OR4A5 gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Transcription Factor Targets dataset.
KEGG Pathways 2026 pathways involving OR4A5 protein from the KEGG Pathways 2026 dataset.
Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene CNV Profiles cell lines with high or low copy number of OR4A5 gene relative to other cell lines from the Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene CNV Profiles dataset.
KnockTF Gene Expression Profiles with Transcription Factor Perturbations transcription factor perturbations changing expression of OR4A5 gene from the KnockTF Gene Expression Profiles with Transcription Factor Perturbations dataset.
Reactome Pathways 2014 pathways involving OR4A5 protein from the Reactome Pathways dataset.
Reactome Pathways 2024 pathways involving OR4A5 protein from the Reactome Pathways 2024 dataset.
Roadmap Epigenomics Histone Modification Site Profiles histone modification site profiles with high histone modification abundance at OR4A5 gene from the Roadmap Epigenomics Histone Modification Site Profiles dataset.
Rummagene Transcription Factor Associations 2026 transcription factors regulating expression of OR4A5 gene from the Rummagene Transcription Factor Associations 2026 dataset.
TargetScan Predicted Nonconserved microRNA Targets microRNAs regulating expression of OR4A5 gene predicted using nonconserved miRNA seed sequences from the TargetScan Predicted Nonconserved microRNA Targets dataset.
TCGA Signatures of Differentially Expressed Genes for Tumors tissue samples with high or low expression of OR4A5 gene relative to other tissue samples from the TCGA Signatures of Differentially Expressed Genes for Tumors dataset.
TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 tissues co-occuring with OR4A5 protein in abstracts of biomedical publications from the TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 dataset.