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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 9o38 | ||||||
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| タイトル | Transmembrane domains of the human sweet receptor (TAS1R2 + TAS1R3) from Class 3 particles (rigidly fitted from PDB:9NOX and 9NOR) | ||||||
要素 |
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キーワード | HYDROLASE/IMMUNE SYSTEM / Sweet / taste / receptor / GPCR / TAS1R2 / TAS1R3 / T1R2 / T1R3 / HYDROLASE-IMMUNE SYSTEM complex / human | ||||||
| 機能・相同性 | 機能・相同性情報sweet taste receptor complex / detection of chemical stimulus involved in sensory perception of sweet taste / sweet taste receptor activity / taste receptor activity / sensory perception of umami taste / sensory perception of sweet taste / Class C/3 (Metabotropic glutamate/pheromone receptors) / positive regulation of cytokinesis / adenylate cyclase-activating G protein-coupled bile acid receptor signaling pathway / adenylate cyclase-activating serotonin receptor signaling pathway ...sweet taste receptor complex / detection of chemical stimulus involved in sensory perception of sweet taste / sweet taste receptor activity / taste receptor activity / sensory perception of umami taste / sensory perception of sweet taste / Class C/3 (Metabotropic glutamate/pheromone receptors) / positive regulation of cytokinesis / adenylate cyclase-activating G protein-coupled bile acid receptor signaling pathway / adenylate cyclase-activating serotonin receptor signaling pathway / regulation of skeletal muscle contraction / PKA activation in glucagon signalling / hair follicle placode formation / developmental growth / intracellular transport / D1 dopamine receptor binding / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / activation of adenylate cyclase activity / Hedgehog 'off' state / cellular response to acidic pH / adenylate cyclase-activating adrenergic receptor signaling pathway / cellular response to glucagon stimulus / intracellular glucose homeostasis / positive regulation of insulin secretion involved in cellular response to glucose stimulus / adenylate cyclase activator activity / trans-Golgi network membrane / negative regulation of inflammatory response to antigenic stimulus / response to prostaglandin E / bone development / platelet aggregation / G protein-coupled receptor activity / cognition / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G protein-coupled acetylcholine receptor signaling pathway / positive regulation of insulin secretion / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / sensory perception of smell / photoreceptor disc membrane / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / G-protein beta-subunit binding / G alpha (12/13) signalling events / positive regulation of cold-induced thermogenesis / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / sensory perception of taste / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity / retina development in camera-type eye / GTPase binding / G protein activity / fibroblast proliferation / Ca2+ pathway / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / signaling receptor complex / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / GTP binding / protein-containing complex binding / Golgi apparatus / signal transduction / extracellular exosome 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト)![]() | ||||||
| 手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3 Å | ||||||
データ登録者 | Juen, Z. / Lu, Z. / Yu, R. / Chang, A.N. / Wang, B. / Fitzpatrick, A.W.P. / Zuker, C.S. | ||||||
| 資金援助 | 米国, 1件
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引用 | 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. | ||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 9o38.cif.gz | 299.1 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9o38.ent.gz | 208.1 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9o38.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/o3/9o38 ftp://data.pdbj.org/pub/pdb/validation_reports/o3/9o38 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 70072MC ![]() 9norC ![]() 9nosC ![]() 9notC ![]() 9nouC ![]() 9novC ![]() 9nowC ![]() 9noxC ![]() 9noyC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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リンク
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集合体
| 登録構造単位 | ![]()
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要素
| #1: タンパク質 | 分子量: 124469.336 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: TAS1R3, T1R3, TR3, GNAS, GNAS1, GSP / 発現宿主: Homo sapiens (ヒト)参照: UniProt: Q7RTX0, UniProt: P63092, 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 #2: タンパク質 | | 分子量: 37416.930 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GNB1 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P62873#3: タンパク質 | | 分子量: 7861.143 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GNG2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P59768#4: 抗体 | | 分子量: 17352.498 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #5: タンパク質 | | 分子量: 96239.008 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: TAS1R2, GPR71, T1R2, TR2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q8TE23Has protein modification | Y | |
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-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
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| EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
| 構成要素 | 名称: Transmembrane domains of the Human sweet receptor (TAS1R2 + TAS1R3) タイプ: COMPLEX / Entity ID: all / 由来: MULTIPLE SOURCES |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) |
| 緩衝液 | pH: 7.5 |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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| 顕微鏡 | モデル: TFS KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1200 nm |
| 撮影 | 電子線照射量: 59 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
| CTF補正 | タイプ: NONE |
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| 3次元再構成 | 解像度: 3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 723893 / 対称性のタイプ: POINT |
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万見について




Homo sapiens (ヒト)

米国, 1件
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FIELD EMISSION GUN