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Olfactory receptor, family 4, subfamily D, member 9
Symbols OR4D9 ; OR11-253
External IDs MGI3031260 HomoloGene17398 GeneCards: OR4D9 Gene
RNA expression pattern
PBB GE OR4D9 gnf1h02110 at tn.png
More reference expression data
Species Human Mouse
Entrez 390199 258155
Ensembl ENSG00000172742 ENSMUSG00000067526
UniProt Q8NGE8 Q8VG74
RefSeq (mRNA) NM_001004711 NM_001011853
RefSeq (protein) NP_001004711 NP_001011853
Location (UCSC) Chr 11:
59.51 – 59.52 Mb
Chr 19:
12.07 – 12.07 Mb
PubMed search [1] [2]

Olfactory receptor 4D9 is a protein that in humans is encoded by the OR4D9 gene.[1]

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.[1]

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