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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: 6ni2 | |||||||||
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タイトル | Stabilized beta-arrestin 1-V2T subcomplex of a GPCR-G protein-beta-arrestin mega-complex | |||||||||
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![]() | SIGNALING PROTEIN/IMMUNE SYSTEM / arrestin / GPCR signaling transducer / scaffolding protein / SIGNALING PROTEIN-IMMUNE SYSTEM complex | |||||||||
機能・相同性 | ![]() renal water retention / Defective AVP does not bind AVPR2 and causes neurohypophyseal diabetes insipidus (NDI) / MAP2K and MAPK activation / Vasopressin-like receptors / regulation of systemic arterial blood pressure by vasopressin / vasopressin receptor activity / Activation of SMO / Golgi Associated Vesicle Biogenesis / Lysosome Vesicle Biogenesis / AP-2 adaptor complex binding ...renal water retention / Defective AVP does not bind AVPR2 and causes neurohypophyseal diabetes insipidus (NDI) / MAP2K and MAPK activation / Vasopressin-like receptors / regulation of systemic arterial blood pressure by vasopressin / vasopressin receptor activity / Activation of SMO / Golgi Associated Vesicle Biogenesis / Lysosome Vesicle Biogenesis / AP-2 adaptor complex binding / clathrin heavy chain binding / Ub-specific processing proteases / clathrin coat of coated pit / hemostasis / desensitization of G protein-coupled receptor signaling pathway / telencephalon development / Cargo recognition for clathrin-mediated endocytosis / positive regulation of systemic arterial blood pressure / inositol hexakisphosphate binding / Clathrin-mediated endocytosis / clathrin-dependent endocytosis / G protein-coupled receptor internalization / acetylcholine receptor binding / Thrombin signalling through proteinase activated receptors (PARs) / G alpha (s) signalling events / positive regulation of intracellular signal transduction / clathrin binding / negative regulation of Notch signaling pathway / pseudopodium / phosphatidylinositol-3,4,5-trisphosphate binding / positive regulation of receptor internalization / endocytic vesicle / small molecule binding / positive regulation of vasoconstriction / cellular response to hormone stimulus / activation of adenylate cyclase activity / visual perception / response to cytokine / G protein-coupled receptor binding / peptide binding / clathrin-coated endocytic vesicle membrane / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / receptor internalization / Vasopressin regulates renal water homeostasis via Aquaporins / protein transport / Cargo recognition for clathrin-mediated endocytosis / Clathrin-mediated endocytosis / cytoplasmic vesicle / ubiquitin-dependent protein catabolic process / G alpha (s) signalling events / molecular adaptor activity / positive regulation of ERK1 and ERK2 cascade / endosome / positive regulation of protein phosphorylation / G protein-coupled receptor signaling pathway / negative regulation of cell population proliferation / positive regulation of cell population proliferation / positive regulation of gene expression / perinuclear region of cytoplasm / Golgi apparatus / endoplasmic reticulum / signal transduction / membrane / nucleus / plasma membrane / cytoplasm / cytosol 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() ![]() ![]() ![]() synthetic construct (人工物) | |||||||||
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: 4 Å | |||||||||
![]() | Nguyen, A.H. / Thomsen, A.R.B. / Cahill, T.J. / des Georges, A. / Lefkowitz, R.J. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structure of an endosomal signaling GPCR-G protein-β-arrestin megacomplex. 著者: Anthony H Nguyen / Alex R B Thomsen / Thomas J Cahill / Rick Huang / Li-Yin Huang / Tara Marcink / Oliver B Clarke / Søren Heissel / Ali Masoudi / Danya Ben-Hail / Fadi Samaan / Venkata P ...著者: Anthony H Nguyen / Alex R B Thomsen / Thomas J Cahill / Rick Huang / Li-Yin Huang / Tara Marcink / Oliver B Clarke / Søren Heissel / Ali Masoudi / Danya Ben-Hail / Fadi Samaan / Venkata P Dandey / Yong Zi Tan / Chuan Hong / Jacob P Mahoney / Sarah Triest / John Little / Xin Chen / Roger Sunahara / Jan Steyaert / Henrik Molina / Zhiheng Yu / Amedee des Georges / Robert J Lefkowitz / ![]() ![]() ![]() 要旨: Classically, G-protein-coupled receptors (GPCRs) are thought to activate G protein from the plasma membrane and are subsequently desensitized by β-arrestin (β-arr). However, some GPCRs continue to ...Classically, G-protein-coupled receptors (GPCRs) are thought to activate G protein from the plasma membrane and are subsequently desensitized by β-arrestin (β-arr). However, some GPCRs continue to signal through G protein from internalized compartments, mediated by a GPCR-G protein-β-arr 'megaplex'. Nevertheless, the molecular architecture of the megaplex remains unknown. Here, we present its cryo-electron microscopy structure, which shows simultaneous engagement of human G protein and bovine β-arr to the core and phosphorylated tail, respectively, of a single active human chimeric β-adrenergic receptor with the C-terminal tail of the arginine vasopressin type 2 receptor (βVR). All three components adopt their canonical active conformations, suggesting that a single megaplex GPCR is capable of simultaneously activating G protein and β-arr. Our findings provide a structural basis for GPCR-mediated sustained internalized G protein signaling. | |||||||||
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 172.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 130.2 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 759 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 766.4 KB | 表示 | |
XML形式データ | ![]() | 27 KB | 表示 | |
CIF形式データ | ![]() | 39.3 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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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: 抗体 | 分子量: 13665.136 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
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#2: タンパク質 | 分子量: 44309.578 Da / 分子数: 1 / Fragment: UNP residues 6-361 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() 参照: UniProt: P17870 |
#3: 抗体 | 分子量: 25512.354 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) |
#4: 抗体 | 分子量: 23435.064 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) |
#5: タンパク質・ペプチド | 分子量: 3115.718 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P30518 |
研究の焦点であるリガンドがあるか | Y |
-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 |
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分子量 | 単位: MEGADALTONS / 実験値: NO | ||||||||||||||||||||||||||||||||||||
由来(天然) |
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由来(組換発現) |
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緩衝液 | pH: 7.4 | ||||||||||||||||||||||||||||||||||||
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||||||||||||||||||
試料支持 | 詳細: unidentified | ||||||||||||||||||||||||||||||||||||
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: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD |
撮影 | 電子線照射量: 104 e/Å2 / 検出モード: SUPER-RESOLUTION フィルム・検出器のモデル: GATAN K2 QUANTUM (4k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.13_2998: / 分類: 精密化 | |||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||
対称性 | 点対称性: C1 (非対称) | |||||||||||||||
3次元再構成 | 解像度: 4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 230021 / 対称性のタイプ: POINT |