+
データを開く
-
基本情報
| 登録情報 | データベース: PDB / ID: 9kpe | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| タイトル | Cryo-EM structure of GPCR16-GiH5 complex | ||||||||||||||||||||||||
要素 |
| ||||||||||||||||||||||||
キーワード | SIGNALING PROTEIN / GPCR / Complex | ||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報bitter taste receptor activity / detection of chemical stimulus involved in sensory perception of bitter taste / ganglioside catabolic process / Class C/3 (Metabotropic glutamate/pheromone receptors) / oligosaccharide catabolic process / exo-alpha-sialidase / exo-alpha-sialidase activity / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / Adenylate cyclase inhibitory pathway ...bitter taste receptor activity / detection of chemical stimulus involved in sensory perception of bitter taste / ganglioside catabolic process / Class C/3 (Metabotropic glutamate/pheromone receptors) / oligosaccharide catabolic process / exo-alpha-sialidase / exo-alpha-sialidase activity / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / Adenylate cyclase inhibitory pathway / T cell migration / D2 dopamine receptor binding / response to prostaglandin E / adenylate cyclase regulator activity / G protein-coupled serotonin receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cellular response to forskolin / regulation of mitotic spindle organization / Regulation of insulin secretion / trans-Golgi network / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / G protein-coupled receptor activity / response to peptide hormone / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / centriolar satellite / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / photoreceptor disc membrane / 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 / GDP binding / 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 / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / G protein activity / GTPase binding / Ca2+ pathway / fibroblast proliferation / midbody / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / cell cortex / 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 / Extra-nuclear estrogen signaling / cell population proliferation / ciliary basal body / G protein-coupled receptor signaling pathway / lysosomal membrane / cell division / external side of plasma membrane / intracellular membrane-bounded organelle / GTPase activity / synapse / centrosome / GTP binding / protein-containing complex binding / nucleolus / magnesium ion binding / endoplasmic reticulum / Golgi apparatus / signal transduction 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: 3.35 Å | ||||||||||||||||||||||||
データ登録者 | Wang, X. / Wu, L.J. / Hua, T. / Liu, Z.J. | ||||||||||||||||||||||||
| 資金援助 | 中国, 1件
| ||||||||||||||||||||||||
引用 | ジャーナル: Cell Rep / 年: 2025タイトル: Structural basis of β-glucopyranoside salicin recognition by a human bitter taste GPCR. 著者: Xin Wang / Cui Zhou / Weizhen Ao / Lijie Wu / Yiran Wu / Weixiu Xu / Shenhui Liu / Qiwen Tan / Ling Wang / Fei Zhao / Junlin Liu / Yuan Pei / Suwen Zhao / Tian Hua / ![]() 要旨: The human perception of bitterness is mediated by type 2 taste receptors (TAS2Rs), which recognize a broad array of bitter substances with distinct chemical properties. TAS2R16 exhibits a pronounced ...The human perception of bitterness is mediated by type 2 taste receptors (TAS2Rs), which recognize a broad array of bitter substances with distinct chemical properties. TAS2R16 exhibits a pronounced selectivity for β-glucoside-moiety-containing compounds, such as salicin from willow bark. However, the molecular mechanism of moiety-specific recognition and receptor activation in TAS2R16 remains unclear. Here, we present cryoelectron microscopy structures of the salicin-activated human TAS2R16 complexed with gustducin and G and G proteins. The binding mode of salicin with TAS2R16 and the specific interactions of the β-D-glucopyranoside moiety are detailed. Together with molecular docking and mutagenesis data, this study uncovers the structural underpinnings of TAS2R16's group-specific recognition, receptor activation, and subsequent gustducin and G protein coupling. These findings advance our understanding of human bitter taste receptors and provide a foundation for structural modifications of bitter glycosides, opening potential therapeutic applications. | ||||||||||||||||||||||||
| 履歴 |
|
-
構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
|---|
-
ダウンロードとリンク
-
ダウンロード
| PDBx/mmCIF形式 | 9kpe.cif.gz | 255.8 KB | 表示 | PDBx/mmCIF形式 |
|---|---|---|---|---|
| PDB形式 | pdb9kpe.ent.gz | 187.8 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9kpe.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
| 文書・要旨 | 9kpe_validation.pdf.gz | 460 KB | 表示 | wwPDB検証レポート |
|---|---|---|---|---|
| 文書・詳細版 | 9kpe_full_validation.pdf.gz | 489.3 KB | 表示 | |
| XML形式データ | 9kpe_validation.xml.gz | 26.1 KB | 表示 | |
| CIF形式データ | 9kpe_validation.cif.gz | 40.1 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/kp/9kpe ftp://data.pdbj.org/pub/pdb/validation_reports/kp/9kpe | HTTPS FTP |
-関連構造データ
-
リンク
-
集合体
| 登録構造単位 | ![]()
|
|---|---|
| 1 |
|
-
要素
-Guanine nucleotide-binding protein ... , 3種, 3分子 ABG
| #1: タンパク質 | 分子量: 42191.777 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: GNAI1発現宿主: ![]() 参照: UniProt: P63096, 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: 39728.426 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: ![]() 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: ![]() 参照: UniProt: P59768 |
-タンパク質 / 抗体 / 糖 , 3種, 3分子 RS

| #4: タンパク質 | 分子量: 113855.758 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Homo sapiens (ヒト), (組換発現) ![]() 遺伝子: nanA_3, SAMEA2467335_02052, TAS2R16 発現宿主: ![]() 参照: UniProt: A0A4J1WX37, UniProt: Q9NYV7, exo-alpha-sialidase |
|---|---|
| #5: 抗体 | 分子量: 28666.820 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト)発現宿主: ![]() |
| #6: 糖 | ChemComp-SA0 / |
-詳細
| 研究の焦点であるリガンドがあるか | Y |
|---|---|
| Has protein modification | Y |
-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
|---|---|
| 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 |
-
試料調製
| 構成要素 | 名称: complex of GPCR with Gigust. / タイプ: COMPLEX / Entity ID: #1-#5 / 由来: RECOMBINANT | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 由来(天然) |
| ||||||||||||
| 由来(組換発現) | 生物種: ![]() | ||||||||||||
| 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 |
-
電子顕微鏡撮影
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
|---|---|
| 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: 60 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
-
解析
| EMソフトウェア |
| ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.35 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 103932 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL | ||||||||||||||||||||||||
| 原子モデル構築 | Source name: AlphaFold / タイプ: in silico model | ||||||||||||||||||||||||
| 拘束条件 |
|
ムービー
コントローラー
万見について




Homo sapiens (ヒト)

中国, 1件
引用






PDBj

































FIELD EMISSION GUN