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AliasesOR3A1, OLFRA03, OR17-40, OR17-82, OR40, olfactory receptor family 3 subfamily A member 1
External IDsMGI: 3030236 HomoloGene: 1915 GeneCards: OR3A1
Gene location (Human)
Chromosome 17 (human)
Chr.Chromosome 17 (human)[1]
Chromosome 17 (human)
Genomic location for OR3A1
Genomic location for OR3A1
Band17p13.3Start3,291,017 bp[1]
End3,298,360 bp[1]
RNA expression pattern
PBB GE OR3A1 221353 at fs.png
More reference expression data
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC)Chr 17: 3.29 – 3.3 MbChr 11: 74.15 – 74.16 Mb
PubMed search[3][4]
View/Edit HumanView/Edit Mouse

Olfactory receptor 3A1 is a protein that in humans is encoded by the OR3A1 gene.[5][6][7]

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. The nomenclature assigned to the olfactory receptor genes and proteins for this organism is independent of other organisms.[7]

See also[edit]


  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000180090 - Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000070379 - Ensembl, May 2017
  3. ^ "Human PubMed Reference:". 
  4. ^ "Mouse PubMed Reference:". 
  5. ^ Glusman G, Clifton S, Roe B, Lancet D (Feb 1997). "Sequence analysis in the olfactory receptor gene cluster on human chromosome 17: recombinatorial events affecting receptor diversity". Genomics. 37 (2): 147–60. doi:10.1006/geno.1996.0536. PMID 8921386. 
  6. ^ Crowe ML, Perry BN, Connerton IF (Jul 1996). "Olfactory receptor-encoding genes and pseudogenes are expressed in humans". Gene. 169 (2): 247–9. doi:10.1016/0378-1119(95)00849-7. PMID 8647456. 
  7. ^ a b "Entrez Gene: OR3A1 olfactory receptor, family 3, subfamily A, member 1". 

Further reading[edit]

External links[edit]

This article incorporates text from the United States National Library of Medicine, which is in the public domain.