Journal
NATURE REVIEWS NEUROSCIENCE
Volume 5, Issue 4, Pages 263-278Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nrn1365
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The chemical senses ( smell and taste) have evolved complex repertoires of chemosensory receptors - G-protein coupled receptors with a seven-transmembrane domain structure. In the mouse, similar to 1,000 odorant receptors are dedicated to the conventional sense of smell, similar to 300 vomeronasal receptors mediate the detection of chemical stimuli ( such as pheromones) by the vomeronasal organ, and similar to 40 taste receptors are implicated in bitter, sweet and umami taste. Nearly all receptor genes have now been identified as the result of genome sequencing, but few receptor - ligand interactions have been characterized. Targeted expression of the green fluorescent protein in chemosensory cells is a promising approach to achieve this objective.
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