OR2AG1
Olfactory receptor 2AG1
Also known as: O2AG1_HUMAN, OR2AG3
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9H205
- Gene
- OR2AG1
- Ensembl
- ENSG00000279486
- Chromosome
- 11
- Canonical length
- 316 aa
- Protein class
- G-protein coupled receptors, Predicted membrane proteins, Transporters
OverviewNCBI Gene
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. This olfactory receptor gene is a segregating pseudogene, where some individuals have an allele that encodes a functional olfactory receptor, while other individuals have an allele encoding a protein that is predicted to be non-functional. [provided by RefSeq, Jul 2015]
Canonical amino-acid sequenceUniProt
316 residues, UniProt reviewed canonical sequence.
>Q9H205|OR2AG1
1 MELWNFTLGS GFILVGILND SGSPELLCAT ITILYLLALI SNGLLLLAIT MEARLHMPMY
61 LLLGQLSLMD LLFTSVVTPK ALADFLRREN TISFGGCALQ MFLALTMGGA EDLLLAFMAY
121 DRYVAICHPL TYMTLMSSRA CWLMVATSWI LASLSALIYT VYTMHYPFCR AQEIRHLLCE
181 IPHLLKVACA DTSRYELMVY VMGVTFLIPS LAAILASYTQ ILLTVLHMPS NEGRKKALVT
241 CSSHLTVVGM FYGAATFMYV LPSSFHSTRQ DNIISVFYTI VTPALNPLIY SLRNKEVMRA
301 LRRVLGKYML PAHSTLLocalizationUniProt · AlphaFold · HPA
Whether an antibody against OR2AG1 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 7
- Mean surface accessibility (rSASA)
- 0.28
- Highest tissue expression
- 0.1 nTPM
Expression across tissuesHPA
Tissue
- bone marrow: 0.1 nTPM
- retina: 0.1 nTPM
- adipose tissue: 0 nTPM
- adrenal gland: 0 nTPM
- amygdala: 0 nTPM
- appendix: 0 nTPM
Single-cell type
- cone photoreceptor cells: 4.1 nCPM
- hematopoietic stem cells: 2.4 nCPM
- adipocytes: 1 nCPM
- plasma cells: 0.8 nCPM
- retinal amacrine cells: 0.8 nCPM
- thymocytes: 0.8 nCPM
Immune cell
- neutrophil: 0.2 nTPM
- basophil: 0.1 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
Brain region
- cerebral cortex: 2.8 nTPM
- basal ganglia: 2.5 nTPM
- amygdala: 2.4 nTPM
- medulla oblongata: 2.4 nTPM
- white matter: 2.4 nTPM
- hippocampal formation: 2.3 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.98
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.7
- DepMap mean gene effect
- 0
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads OR2AG1 as an antibody target. Whether an autoantibody or antibody against OR2AG1 could matter depends on whether native OR2AG1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
OR2AG1 is annotated at the cell surface, where native OR2AG1 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label OR2AG1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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