25su
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cryo-EM structure of human TAS2R4
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Structural highlights
FunctionTA2R4_HUMAN Gustducin-coupled receptor for denatonium and N(6)-propyl-2-thiouracil implicated in the perception of bitter compounds in the oral cavity and the gastrointestinal tract. Signals through PLCB2 and the calcium-regulated cation channel TRPM5. In airway epithelial cells, binding of denatonium increases the intracellular calcium ion concentration and stimulates ciliary beat frequency.[1] References
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This page was last modified 06:57, 15 July 2026.