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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]
People with the OR7D4 R88W/T133M polymorphism are less sensitive to these odorants and find them less offensive smelling, as they are characteristically described as "sweaty".[8]
^Hornung J, Noack H, Thomas M, Farger G, Nieratschker V, Freiherr J, Derntl B (February 2018). "Bayesian informed evidence against modulation of androstadienone-effects by genotypic receptor variants and participant sex: A study assessing Stroop interference control, mood and olfaction". Hormones and Behavior. 98: 45–54. doi:10.1016/j.yhbeh.2017.12.003. PMID29246659. S2CID3577638.