- EMDB-49610: Local refinement map of the human sweet taste receptor lower-half... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-49610
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 PEG400 dataset
マップデータ
Local refinement map of the human sweet taste receptor lower-half of the Cysteine-Rich domains (CR) and transmembrane domains (TMD) from the PEG400 dataset
試料
細胞: Local refinement map of the human sweet taste receptor lower-half of the Cysteine-Rich domains (CR) and transmembrane domains (TMD) from the PEG400 dataset
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.
ダウンロード / ファイル: emd_49610.map.gz / 形式: CCP4 / 大きさ: 343 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
注釈
Local refinement map of the human sweet taste receptor lower-half of the Cysteine-Rich domains (CR) and transmembrane domains (TMD) from the PEG400 dataset
全体 : Local refinement map of the human sweet taste receptor lower-half...
全体
名称: Local refinement map of the human sweet taste receptor lower-half of the Cysteine-Rich domains (CR) and transmembrane domains (TMD) from the PEG400 dataset
要素
細胞: Local refinement map of the human sweet taste receptor lower-half of the Cysteine-Rich domains (CR) and transmembrane domains (TMD) from the PEG400 dataset
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超分子 #1: Local refinement map of the human sweet taste receptor lower-half...
超分子
名称: Local refinement map of the human sweet taste receptor lower-half of the Cysteine-Rich domains (CR) and transmembrane domains (TMD) from the PEG400 dataset タイプ: cell / ID: 1 / 親要素: 0 / 含まれる分子: #1-#2
由来(天然)
生物種: Homo sapiens (ヒト)
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実験情報
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構造解析
手法
クライオ電子顕微鏡法
解析
単粒子再構成法
試料の集合状態
particle
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試料調製
緩衝液
pH: 7.5
凍結
凍結剤: ETHANE
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電子顕微鏡法
顕微鏡
TFS KRIOS
撮影
フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 平均電子線量: 59.0 e/Å2