منابع مشابه
Olfactory Receptors, Vomeronasal Receptors, and the Organization of Olfactory Information
observed with a variety of molecular markers. For examThe main olfactory system of mammals recognizes the ple, the Ga protein Gi2 is expressed at high levels only universe of odorants using as many as a thousand rein apical neurons, while the Ga protein Go is expressed lated G protein–coupled receptors (Buck and Axel, at high levels only in basal neurons (Halpern et al., 1995; 1991). Oddly enou...
متن کاملGenomics of olfactory receptors.
In many species, the sense of smell plays important roles in locating food, detecting predators, navigating, and communicating social information. The olfactory system has evolved complex repertoires of odor receptors (ORs) to fulfill these functions. Through computational data mining, OR repertoires of multiple species were identified, revealing a surprisingly large OR gene family in rodents a...
متن کاملIonotropic Crustacean Olfactory Receptors
The nature of the olfactory receptor in crustaceans, a major group of arthropods, has remained elusive. We report that spiny lobsters, Panulirus argus, express ionotropic receptors (IRs), the insect chemosensory variants of ionotropic glutamate receptors. Unlike insects IRs, which are expressed in a specific subset of olfactory cells, two lobster IR subunits are expressed in most, if not all, l...
متن کاملMammalian Olfactory Receptors
Perception of chemical stimuli from the environment is essential to most animals; accordingly, they are equipped with a complex olfactory system capable of receiving a nearly unlimited number of odorous substances and pheromones. This enormous task is accomplished by olfactory sensory neurons (OSNs) arranged in several chemosensory compartments in the nose. The sensitive and selective responsiv...
متن کاملEvolution of insect olfactory receptors
The olfactory sense detects a plethora of behaviorally relevant odor molecules; gene families involved in olfaction exhibit high diversity in different animal phyla. Insects detect volatile molecules using olfactory (OR) or ionotropic receptors (IR) and in some cases gustatory receptors (GRs). While IRs are expressed in olfactory organs across Protostomia, ORs have been hypothesized to be an ad...
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ژورنال
عنوان ژورنال: Nature Reviews Neuroscience
سال: 2004
ISSN: 1471-003X,1471-0048
DOI: 10.1038/nrn1361