A dimer of T1R2 and T1R3 receptors responds to diverse stimuli associated with the human sense of sweet taste, such as sucrose, d-tryptophan, aspartame, and saccharin. Signaling occurs via the Gi family G-protein Gustducin (Caicedo et al. 2003).
Li, X, Staszewski, L, Xu, H, Durick, K, Zoller, M, Adler, E
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