Olfactory marker protein (OMP) is a phylogenetically conserved, 19kDa, cytoplasmic protein of unknown function expressed almost exclusively in mature olfactory sensory neurons, in essentially all vertebrate species. The gene encoding OMP is localized on rat chromosome 1. OMP expression is initially detected in rat and mouse embryo during the last trimester of gestation and reaches adult levels at 2-4 weeks postnatally. It has been suggested that OMP is a novel modulatory component of the odor detection signal transduction cascade that is developmentally and physiologically regulated.
Immunogen
synthetic peptide corresponding to amino acids 119-137 located near the C-terminus of rat OMP conjugated to KLH.
Application
Anti-OMP antibody produced in rabbit has been used in immunohistochemistry.
Anti-OMP antibody produced in rabbit has been used in:
immunoblotting
double immunofluorescence
staining
Biochem/physiol Actions
Olfactory marker protein (OMP) helps to modulate the formation and refinement of the olfactory glomerular map. OMP-deficient mice generated by gene targeting in embryonic stem (ES) cells are compromised in their ability to respond to odor stimuli. In the OMP-null mouse, in addition to reduced odorant response, the levels of neural tyrosine hydroxylase (TH) and neuropeptide cholecystokinin (CCK) are severely reduced. It has been suggested that OMP is a novel modulatory component of the odor detection signal transduction cascade that is developmentally and physiologically regulated.
Physical form
Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.
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Animals : an open access journal from MDPI, 13(12) (2023-06-28)
Chemical communication in mammals is ensured by exchanging chemical signals through the vomeronasal organ (VNO) and its ability to detect pheromones. The alteration of this organ has been proven to impact animal life, participating in the onset of aggressive behaviors
Olfactory marker protein (OMP) exhibits a beta-clam fold in solution: implications for target peptide interaction and olfactory signal transduction.
Baldisseri DM,
Journal of Molecular Biology, 319(3), 823-837 (2002)
Expression of CD36 by olfactory receptor cells and its abundance on the epithelial surface in mice
Lee S, et al.
PLoS ONE, 10(7), e0133412-e0133412 (2015)
Diverse populations of intrinsic cholinergic interneurons in the mouse olfactory bulb
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