- EMDB-49606: Local refinement map of the human sweet taste receptor lower-half... -
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データベース: EMDB / ID: EMD-49606
タイトル
Local refinement map of the human sweet taste receptor lower-half of the Cysteine-Rich domains (CR) and transmembrane domains (TMD) from the combined datasets
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複合体: human sweet taste receptor lower-half of the Cysteine-Rich domains (CR) and transmembrane domains (TMD)
ジャーナル: Cell / 年: 2025 タイトル: The structure of human sweetness. 著者: Zhang Juen / Zhengyuan Lu / Ruihuan Yu / Andrew N Chang / Brian Wang / Anthony W P Fitzpatrick / Charles S Zuker / 要旨: In humans, the detection and ultimately the perception of sweetness begin in the oral cavity, where taste receptor cells (TRCs) dedicated to sweet-sensing interact with sugars, artificial sweeteners, ...In humans, the detection and ultimately the perception of sweetness begin in the oral cavity, where taste receptor cells (TRCs) dedicated to sweet-sensing interact with sugars, artificial sweeteners, and other sweet-tasting chemicals. Human sweet TRCs express on their cell surface a sweet receptor that initiates the cascade of signaling events responsible for our strong attraction to sweet stimuli. Here, we describe the cryo-electron microscopy (cryo-EM) structure of the human sweet receptor bound to two of the most widely used artificial sweeteners-sucralose and aspartame. Our results reveal the structural basis for sweet detection, provide insights into how a single receptor mediates all our responses to such a wide range of sweet-tasting compounds, and open up unique possibilities for designing a generation of taste modulators informed by the structure of the human receptor.