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Olfactory receptor, family 3, subfamily A, member 1
Symbols OR3A1 ; OLFRA03; OR17-40; OR17-82; OR40
External IDs MGI3030236 HomoloGene1915 GeneCards: OR3A1 Gene
RNA expression pattern
PBB GE OR3A1 221353 at tn.png
More reference expression data
Species Human Mouse
Entrez 4994 258703
Ensembl ENSG00000180090 ENSMUSG00000070379
UniProt P47881 Q8VFX7
RefSeq (mRNA) NM_002550 NM_146708
RefSeq (protein) NP_002541 NP_666919
Location (UCSC) Chr 17:
3.19 – 3.2 Mb
Chr 11:
74.16 – 74.16 Mb
PubMed search [1] [2]

Olfactory receptor 3A1 is a protein that in humans is encoded by the OR3A1 gene.[1][2][3]

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.[3]

See also[edit]


  1. ^ 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. 
  2. ^ 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. 
  3. ^ 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.