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Keyword - Taste (KW-0919)

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Protein involved in taste signal transduction. Human perceives five basic taste qualities: bitter, salty, sour, sweet, and umami, the taste of glutamate. Taste perception begins when a taste-eliciting molecule, or tastant, interacts with specialized receptors in the membrane of taste receptor cells. Taste responses to bitter, sweet, and umami compounds are initiated by G-protein-coupled receptors and transduced via G-protein signaling cascades. Salty and sour tastes are transduced by ion channels.


  • Gustation


Biological process

Gene Ontology


sensory perception of taste [ GO:0050909 ]


TasteSensory transductionBiological process
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