Olfactory receptor family 8 subfamily G member 5 (OR8G5)

Olfactory receptor family 8 subfamily G member 5 (OR8G5) is a gene that encodes a member of the large olfactory receptor family involved in the initial detection of odorant molecules in the nasal epithelium, triggering neuronal signals responsible for the perception of smell[1][4]. These proteins are G protein-coupled receptors (GPCRs) with a characteristic seven-transmembrane domain structure, sharing similarities with many neurotransmitter and hormone receptors[1][4]. Notably, multiple authoritative gene and protein databases annotate OR8G5 as a **pseudogene** in humans (frequently referenced as OR8G5P or OR8G5 pseudogene); evidence for protein-level expression or therapeutic relevance is lacking, and no documented drug interactions exist[1][4][5]. Additional context: - The olfactory receptor gene family is the largest in the human genome, and loss-of-function mutations leading to pseudogenization are common[1][6][7]. - While olfactory receptors as a class have been explored for roles beyond smell, such as tumorigenesis or metabolic disease signaling[10], OR8G5 has not been indicated as a therapeutic target, functional receptor, or biomarker for patient selection or efficacy in any disease context. - The various aliases represent historical nomenclature, alternative splicing, or closely related pseudogenes. - Functionally, pseudogenes such as OR8G5 do not produce functional protein due to disruptive mutations, so they generally lack “biological function” and are typically not considered actionable drug targets[1][4][6][11]. In summary, **Olfactory receptor family 8 subfamily G member 5 (OR8G5) is best described in humans as a probable pseudogene, not considered a functional or druggable therapeutic target**. There is no evidence for clinical pharmacology, mechanism of action, biomarker utility, or safety discussion specifically for this receptor in the scientific literature[1][4][6].

Other names

Olfactory receptor 8G5OR8G5POR8G6Olfactory receptor 8G6Olfactory receptor OR11-298OR11-298olfactory receptor 8G6olfactory receptor OR11-298olfactory receptor, family 8, subfamily G, member 5 pseudogeneolfactory receptor, family 8, subfamily G, member 6