| HGNC Family | G protein-coupled receptors |
| Name | olfactory receptor, family 2, subfamily AE, member 1 |
| 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 |
{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nc‐Rel – a member of the NF‑κB transcription factor family – has emerged as a pivotal regulator of immune cell development and function. Multiple studies have demonstrated that c‐Rel is critical for proper dendritic cell maturation and cytokine production (e.g., IL‑12 and IL‑23) as well as for the development and homeostasis of T‐cell subsets including Th1 cells, regulatory T cells, and memory‐supporting populations. In B lymphocytes, c‐Rel is required for antigen receptor–induced cell growth and proliferation via regulation of key cell cycle regulators. These early discoveries underscore its essential role in orchestrating both innate and adaptive immunity by modulating gene expression programs during immune activation and differentiation."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "10"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nAt the molecular level, c‐Rel directs transcriptional activation by binding to specific κB elements in the promoters of target genes. Its activity is crucial for chromatin remodeling events that support IL‑2 gene transcription and for the formation of enhanceosomes that govern Foxp3 induction during regulatory T‐cell differentiation. In antigen‐presenting cells, c‐Rel is indispensable for the induction of cytokine subunits (such as those forming IL‑12 and IL‑23) following Toll‑like receptor engagement. Such regulation is achieved through its ability to cooperate with other transcription factors and co‐activators, ensuring the integration of signals from TCR and co-stimulatory molecules. These findings highlight how c‐Rel controls not only the amplitude but also the qualitative nature of immune responses."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "11", "end_ref": "24"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nBeyond its fundamental roles in immune regulation, c‐Rel has been implicated in diverse pathological contexts. In models of autoimmune inflammation and experimental encephalomyelitis, c‐Rel modulates the balance between pathogenic Th subsets and regulatory T cells. In tumorigenesis, aberrant c‐Rel activity contributes to lymphomagenesis and mammary tumor formation through the dysregulation of cell proliferation genes, while in neural contexts, c‐Rel activation downstream of metabotropic receptor signaling promotes neuroprotection against toxic insults. Moreover, post‐transcriptional regulation by microRNAs and interactions with other signaling mediators further refine c‐Rel’s activity, impacting inflammatory cytokine output and cellular survival decisions. Collectively, these studies reveal that c‐Rel functions as a multifaceted transcriptional regulator whose activity must be tightly controlled to maintain immune homeostasis and prevent disease."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "25", "end_ref": "39"}]}, {"type": "t", "text": "\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Fateh Ouaaz, Joseph Arron, Ye Zheng, et al. 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| Synonyms | OR2AE2 |
| Proteins | O2AE1_HUMAN |
| NCBI Gene ID | 81392 |
| API | |
| Download Associations | |
| Predicted Functions |
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| Co-expressed Genes |
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| Expression in Tissues and Cell Lines |
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OR2AE1 has 1,121 functional associations with biological entities spanning 8 categories (molecular profile, functional term, phrase or reference, disease, phenotype or trait, chemical, structural feature, cell line, cell type or tissue, gene, protein or microRNA, sequence feature) extracted from 48 datasets.
Click the + buttons to view associations for OR2AE1 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 OR2AE1 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 OR2AE1 gene relative to other tissue samples from the Allen Brain Atlas Developing Human Brain Tissue Gene Expression Profiles by Microarray dataset. | |
| Allen Brain Atlas Prenatal Human Brain Tissue Gene Expression Profiles | tissues with high or low expression of OR2AE1 gene relative to other tissues from the Allen Brain Atlas Prenatal Human Brain Tissue Gene Expression Profiles dataset. | |
| BioGPS Human Cell Type and Tissue Gene Expression Profiles | cell types and tissues with high or low expression of OR2AE1 gene relative to other cell types and tissues from the BioGPS Human Cell Type and Tissue Gene Expression Profiles dataset. | |
| CCLE Cell Line Gene CNV Profiles | cell lines with high or low copy number of OR2AE1 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 OR2AE1 gene from the CHEA Transcription Factor Binding Site Profiles dataset. | |
| ChEA Transcription Factor Targets | transcription factors binding the promoter of OR2AE1 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 OR2AE1 gene in low- or high-throughput transcription factor functional studies from the CHEA Transcription Factor Targets 2022 dataset. | |
| CM4AI KOLF21J CRISPRi Gene Perturbation Atlas | gene perturbations changing expression of OR2AE1 gene from the CM4AI KOLF21J CRISPRi Gene Perturbation Atlas dataset. | |
| COMPARTMENTS Curated Protein Localization Evidence Scores | cellular components containing OR2AE1 protein from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset. | |
| COSMIC Cell Line Gene CNV Profiles | cell lines with high or low copy number of OR2AE1 gene relative to other cell lines from the COSMIC Cell Line Gene CNV Profiles dataset. | |
| COSMIC Cell Line Gene Mutation Profiles | cell lines with OR2AE1 gene mutations from the COSMIC Cell Line Gene Mutation Profiles dataset. | |
| DepMap CRISPR Gene Dependency | cell lines with fitness changed by OR2AE1 gene knockdown relative to other cell lines from the DepMap CRISPR Gene Dependency dataset. | |
| DISEASES Text-mining Gene-Disease Association Evidence Scores 2025 | diseases co-occuring with OR2AE1 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 OR2AE1 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 OR2AE1 gene from the ENCODE Transcription Factor Binding Site Profiles dataset. | |
| ENCODE Transcription Factor Targets | transcription factors binding the promoter of OR2AE1 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 OR2AE1 gene from the GEO Signatures of Differentially Expressed Genes for Gene Perturbations dataset. | |
| GEO Signatures of Differentially Expressed Genes for Small Molecules | small molecule perturbations changing expression of OR2AE1 gene from the GEO Signatures of Differentially Expressed Genes for Small Molecules dataset. | |
| GO Biological Process Annotations 2015 | biological processes involving OR2AE1 gene from the curated GO Biological Process Annotations 2015 dataset. | |
| GO Biological Process Annotations 2023 | biological processes involving OR2AE1 gene from the curated GO Biological Process Annotations 2023 dataset. | |
| GO Biological Process Annotations 2025 | biological processes involving OR2AE1 gene from the curated GO Biological Process Annotations2025 dataset. | |
| GO Cellular Component Annotations 2015 | cellular components containing OR2AE1 protein from the curated GO Cellular Component Annotations 2015 dataset. | |
| GO Molecular Function Annotations 2015 | molecular functions performed by OR2AE1 gene from the curated GO Molecular Function Annotations 2015 dataset. | |
| GO Molecular Function Annotations 2023 | molecular functions performed by OR2AE1 gene from the curated GO Molecular Function Annotations 2023 dataset. | |
| GO Molecular Function Annotations 2025 | molecular functions performed by OR2AE1 gene from the curated GO Molecular Function Annotations 2025 dataset. | |
| GTEx eQTL 2025 | SNPs regulating expression of OR2AE1 gene from the GTEx eQTL 2025 dataset. | |
| GTEx Tissue Gene Expression Profiles 2023 | tissues with high or low expression of OR2AE1 gene relative to other tissues from the GTEx Tissue Gene Expression Profiles 2023 dataset. | |
| GWAS Catalog SNP-Phenotype Associations 2025 | phenotypes associated with OR2AE1 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 OR2AE1 gene relative to other cell lines from the Heiser et al., PNAS, 2011 Cell Line Gene Expression Profiles dataset. | |
| HPA Tissue Gene Expression Profiles | tissues with high or low expression of OR2AE1 gene relative to other tissues from the HPA Tissue Gene Expression Profiles dataset. | |
| HPA Tissue Protein Expression Profiles | tissues with high or low expression of OR2AE1 protein relative to other tissues from the HPA Tissue Protein Expression Profiles dataset. | |
| InterPro Predicted Protein Domain Annotations | protein domains predicted for OR2AE1 protein from the InterPro Predicted Protein Domain Annotations dataset. | |
| JASPAR Predicted Human Transcription Factor Targets 2025 | transcription factors regulating expression of OR2AE1 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 OR2AE1 gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Transcription Factor Targets dataset. | |
| KEGG Pathways 2026 | pathways involving OR2AE1 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 OR2AE1 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 OR2AE1 gene from the KnockTF Gene Expression Profiles with Transcription Factor Perturbations dataset. | |
| LOCATE Predicted Protein Localization Annotations | cellular components predicted to contain OR2AE1 protein from the LOCATE Predicted Protein Localization Annotations dataset. | |
| MotifMap Predicted Transcription Factor Targets | transcription factors regulating expression of OR2AE1 gene predicted using known transcription factor binding site motifs from the MotifMap Predicted Transcription Factor Targets dataset. | |
| Reactome Pathways 2014 | pathways involving OR2AE1 protein from the Reactome Pathways dataset. | |
| Reactome Pathways 2024 | pathways involving OR2AE1 protein from the Reactome Pathways 2024 dataset. | |
| Rummagene Transcription Factor Associations 2026 | transcription factors regulating expression of OR2AE1 gene from the Rummagene Transcription Factor Associations 2026 dataset. | |
| RummaGEO Drug Perturbation Signatures | drug perturbations changing expression of OR2AE1 gene from the RummaGEO Drug Perturbation Signatures dataset. | |
| RummaGEO Gene Perturbation Signatures | gene perturbations changing expression of OR2AE1 gene from the RummaGEO Gene Perturbation Signatures dataset. | |
| TCGA Signatures of Differentially Expressed Genes for Tumors | tissue samples with high or low expression of OR2AE1 gene relative to other tissue samples from the TCGA Signatures of Differentially Expressed Genes for Tumors dataset. | |
| TISSUES Experimental Tissue Protein Expression Evidence Scores 2025 | tissues with high expression of OR2AE1 protein in proteomics datasets from the TISSUES Experimental Tissue Protein Expression Evidence Scores 2025 dataset. | |
| TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 | tissues co-occuring with OR2AE1 protein in abstracts of biomedical publications from the TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 dataset. | |