OR7D4 | |||||||||||||||||||||||||
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Identifiers | |||||||||||||||||||||||||
Aliases | OR7D4 , OR19-7, OR19-B, OR19B, OR7D4P, hg105, olfactory receptor family 7 subfamily D member 4 | ||||||||||||||||||||||||
External IDs | OMIM: 611538 MGI: 1313142 HomoloGene: 81583 GeneCards: OR7D4 | ||||||||||||||||||||||||
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Orthologs | |||||||||||||||||||||||||
Species | Human | Mouse | |||||||||||||||||||||||
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Location (UCSC) | Chr 19: 9.21 – 9.22 Mb | n/a | |||||||||||||||||||||||
PubMed search | [2] | [3] | |||||||||||||||||||||||
Wikidata | |||||||||||||||||||||||||
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Olfactory receptor 7D4 is a protein that in humans is encoded by the OR7D4 gene. [4] [5] [6] [7] [8] [9] [10]
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. [4]
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". [7]
Olfactory receptors (ORs), also known as odorant receptors, are expressed in the cell membranes of olfactory receptor neurons and are responsible for the detection of odorants which give rise to the sense of smell. Activated olfactory receptors trigger nerve impulses which transmit information about odor to the brain. These receptors are members of the class A rhodopsin-like family of G protein-coupled receptors (GPCRs). The olfactory receptors form a multigene family consisting of around 800 genes in humans and 1400 genes in mice.
Androstenone (5α-androst-16-en-3-one) is a steroidal pheromone. It is found in boar's saliva, celery cytoplasm, and truffle fungus. Androstenone was the first mammalian pheromone to be identified. It is found in high concentrations in the saliva of male pigs, and, when inhaled by a female pig that is in heat, results in the female assuming the mating stance. Androstenone is the active ingredient in 'Boarmate', a commercial product made by DuPont sold to pig farmers to test sows for timing of artificial insemination.
Hyperosmia is an increased olfactory acuity, usually caused by a lower threshold for odor. This perceptual disorder arises when there is an abnormally increased signal at any point between the olfactory receptors and the olfactory cortex. The causes of hyperosmia may be genetic, hormonal, environmental or the result of benzodiazepine withdrawal syndrome.
Olfactory receptor 2C1 is a protein that in humans is encoded by the OR2C1 gene.
Olfactory receptor 1A1 is a protein that in humans is encoded by the OR1A1 gene.
Olfactory receptor 2W1 is a protein that in humans is encoded by the OR2W1 gene.
Olfactory receptor 2J2 is a protein that in humans is encoded by the OR2J2 gene.
Olfactory receptor 51E2 is a protein that in humans is encoded by the OR51E2 gene.
Olfactory receptor 51L1 is a protein that in humans is encoded by the OR51L1 gene.
Olfactory receptor 56A4 is a protein that in humans is encoded by the OR56A4 gene.
Olfactory receptor 10J5 is a protein that in humans is encoded by the OR10J5 gene.
Olfactory receptor 11H6 is a protein that in humans is encoded by the OR11H6 gene.
Olfactory receptor 2M3 is a protein that in humans is encoded by the OR2M3 gene.
Olfactory receptor 2AG1 is a protein that in humans is encoded by the OR2AG1 gene.
Olfactory receptor 51E1 is a protein that in humans is encoded by the OR51E1 gene.
Olfactory receptor 13C9 is a protein that in humans is encoded by the OR13C9 gene.
Olfactory receptor 5W2 is a protein that in humans is encoded by the OR5W2 gene.
Olfactory receptor 11H4 is a protein that in humans is encoded by the OR11H4 gene.
Olfactory receptor 2M7 is a protein that in humans is encoded by the OR2M7 gene.
Olfactory receptor 2J3 is a protein that in humans is encoded by the OR2J3 gene.
This article incorporates text from the United States National Library of Medicine, which is in the public domain.