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Olfactory receptor, family 2, subfamily A, member 5
Symbols OR2A5 ; OR2A11P; OR2A26; OR2A8; OR7-138; OR7-141
External IDs MGI3030282 HomoloGene64846 GeneCards: OR2A5 Gene
Species Human Mouse
Entrez 393046 258270
Ensembl ENSG00000221836 ENSMUSG00000043119
UniProt Q96R48 Q8VES9
RefSeq (mRNA) NM_012365 NM_146273
RefSeq (protein) NP_036497 NP_666385
Location (UCSC) Chr 7:
144.05 – 144.05 Mb
Chr 6:
42.9 – 42.9 Mb
PubMed search [1] [2]

Olfactory receptor 2A5 is a protein that in humans is encoded by the OR2A5 gene.[1][2]

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.[2]

See also[edit]


  1. ^ Rouquier S, Taviaux S, Trask BJ, Brand-Arpon V, van den Engh G, Demaille J, Giorgi D (Mar 1998). "Distribution of olfactory receptor genes in the human genome". Nat Genet 18 (3): 243–50. doi:10.1038/ng0398-243. PMID 9500546. 
  2. ^ a b "Entrez Gene: OR2A5 olfactory receptor, family 2, subfamily A, member 5". 

Further reading[edit]

  • Fuchs T; Malecova B; Linhart C; et al. (2003). "DEFOG: a practical scheme for deciphering families of genes". Genomics 80 (3): 295–302. doi:10.1006/geno.2002.6830. PMID 12213199. 

External links[edit]

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