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Aliases OR3A1, OLFRA03, OR17-40, OR17-82, OR40, olfactory receptor family 3 subfamily A member 1
External IDs MGI: 3030236 HomoloGene: 1915 GeneCards: 4994
RNA expression pattern
PBB GE OR3A1 221353 at tn.png
More reference expression data
Species Human Mouse
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC) Chr 17: 3.29 – 3.29 Mb Chr 11: 74.16 – 74.16 Mb
PubMed search [1] [2]
View/Edit Human View/Edit Mouse

Olfactory receptor 3A1 is a protein that in humans is encoded by the OR3A1 gene.[3][4][5]

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.[5]

See also[edit]


  1. ^ "Human PubMed Reference:". 
  2. ^ "Mouse PubMed Reference:". 
  3. ^ 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. 
  4. ^ 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. 
  5. ^ 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.