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基本情報
| 登録情報 | データベース: PDB / ID: 8jpb | ||||||
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| タイトル | cryo-EM structure of NTSR1-GRK2-Galpha(q) complexes 1 | ||||||
要素 |
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キーワード | SIGNALING PROTEIN / Biased signaling | ||||||
| 機能・相同性 | 機能・相同性情報Calmodulin induced events / negative regulation of the force of heart contraction by chemical signal / negative regulation of relaxation of smooth muscle / beta-adrenergic-receptor kinase / Activation of SMO / G protein-coupled neurotensin receptor activity / Edg-2 lysophosphatidic acid receptor binding / inositol phosphate catabolic process / alpha-2A adrenergic receptor binding / symmetric synapse ...Calmodulin induced events / negative regulation of the force of heart contraction by chemical signal / negative regulation of relaxation of smooth muscle / beta-adrenergic-receptor kinase / Activation of SMO / G protein-coupled neurotensin receptor activity / Edg-2 lysophosphatidic acid receptor binding / inositol phosphate catabolic process / alpha-2A adrenergic receptor binding / symmetric synapse / beta-adrenergic receptor kinase activity / G protein-coupled receptor kinase activity / tachykinin receptor signaling pathway / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / phospholipase C-activating G protein-coupled glutamate receptor signaling pathway / negative regulation of striated muscle contraction / D-aspartate import across plasma membrane / positive regulation of gamma-aminobutyric acid secretion / Cargo recognition for clathrin-mediated endocytosis / positive regulation of protein localization to cilium / phospholipase C-activating serotonin receptor signaling pathway / PLC beta mediated events / desensitization of G protein-coupled receptor signaling pathway / regulation of membrane depolarization / cytoplasmic side of mitochondrial outer membrane / regulation of platelet activation / entrainment of circadian clock / positive regulation of arachidonate secretion / L-glutamate import across plasma membrane / regulation of the force of heart contraction / regulation of respiratory gaseous exchange / positive regulation of inhibitory postsynaptic potential / positive regulation of smoothened signaling pathway / negative regulation of systemic arterial blood pressure / G protein-coupled receptor internalization / negative regulation of release of sequestered calcium ion into cytosol / positive regulation of glutamate secretion / regulation of canonical Wnt signaling pathway / G alpha (s) signalling events / glutamate receptor signaling pathway / G alpha (q) signalling events / temperature homeostasis / response to lipid / positive regulation of inositol phosphate biosynthetic process / detection of temperature stimulus involved in sensory perception of pain / phototransduction, visible light / photoreceptor outer segment / regulation of signal transduction / neuropeptide signaling pathway / postsynaptic cytosol / cardiac muscle contraction / adenylate cyclase-activating adrenergic receptor signaling pathway / enzyme regulator activity / response to prostaglandin E / GTPase activator activity / viral genome replication / Peptide ligand-binding receptors / Turbulent (oscillatory, disturbed) flow shear stress activates signaling by PIEZO1 and integrins in endothelial cells / positive regulation of release of sequestered calcium ion into cytosol / dendritic shaft / adult locomotory behavior / learning / cell projection / intracellular protein transport / G protein-coupled receptor binding / G protein-coupled receptor activity / G-protein beta/gamma-subunit complex binding / cytoplasmic side of plasma membrane / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / G-protein activation / terminal bouton / blood coagulation / ADP signalling through P2Y purinoceptor 1 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / heterotrimeric G-protein complex / presynapse / Thrombin signalling through proteinase activated receptors (PARs) / heart development / G protein activity / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / nuclear membrane / phospholipase C-activating G protein-coupled receptor signaling pathway / perikaryon / G alpha (q) signalling events / dendritic spine / chemical synaptic transmission / 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 / protein phosphorylation / protein kinase activity / postsynapse / protein stabilization / positive regulation of apoptotic process / G protein-coupled receptor signaling pathway / membrane raft / lysosomal membrane / GTPase activity / positive regulation of gene expression 類似検索 - 分子機能 | ||||||
| 生物種 | ![]() Homo sapiens (ヒト)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: 3.07 Å | ||||||
データ登録者 | Duan, J. / Liu, H. / Zhao, F. / Yuan, Q. / Ji, Y. / Xu, H.E. | ||||||
| 資金援助 | 中国, 1件
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引用 | ジャーナル: Nature / 年: 2023タイトル: GPCR activation and GRK2 assembly by a biased intracellular agonist. 著者: Jia Duan / Heng Liu / Fenghui Zhao / Qingning Yuan / Yujie Ji / Xiaoqing Cai / Xinheng He / Xinzhu Li / Junrui Li / Kai Wu / Tianyu Gao / Shengnan Zhu / Shi Lin / Ming-Wei Wang / Xi Cheng / ...著者: Jia Duan / Heng Liu / Fenghui Zhao / Qingning Yuan / Yujie Ji / Xiaoqing Cai / Xinheng He / Xinzhu Li / Junrui Li / Kai Wu / Tianyu Gao / Shengnan Zhu / Shi Lin / Ming-Wei Wang / Xi Cheng / Wanchao Yin / Yi Jiang / Dehua Yang / H Eric Xu / ![]() 要旨: Phosphorylation of G-protein-coupled receptors (GPCRs) by GPCR kinases (GRKs) desensitizes G-protein signalling and promotes arrestin signalling, which is also modulated by biased ligands. The ...Phosphorylation of G-protein-coupled receptors (GPCRs) by GPCR kinases (GRKs) desensitizes G-protein signalling and promotes arrestin signalling, which is also modulated by biased ligands. The molecular assembly of GRKs on GPCRs and the basis of GRK-mediated biased signalling remain largely unknown owing to the weak GPCR-GRK interactions. Here we report the complex structure of neurotensin receptor 1 (NTSR1) bound to GRK2, Gα and the arrestin-biased ligand SBI-553. The density map reveals the arrangement of the intact GRK2 with the receptor, with the N-terminal helix of GRK2 docking into the open cytoplasmic pocket formed by the outward movement of the receptor transmembrane helix 6, analogous to the binding of the G protein to the receptor. SBI-553 binds at the interface between GRK2 and NTSR1 to enhance GRK2 binding. The binding mode of SBI-553 is compatible with arrestin binding but clashes with the binding of Gα protein, thus providing a mechanism for its arrestin-biased signalling capability. In sum, our structure provides a rational model for understanding the details of GPCR-GRK interactions and GRK2-mediated biased signalling. | ||||||
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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 | 8jpb.cif.gz | 259.7 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8jpb.ent.gz | 196.7 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8jpb.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/jp/8jpb ftp://data.pdbj.org/pub/pdb/validation_reports/jp/8jpb | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 36474MC ![]() 8jpcC ![]() 8jpdC ![]() 8jpeC ![]() 8jpfC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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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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| 1 |
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要素
-タンパク質 , 3種, 3分子 GQR
| #1: タンパク質 | 分子量: 79644.727 Da / 分子数: 1 / 変異: A292P,R295I,S455D / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() 参照: UniProt: P21146, beta-adrenergic-receptor kinase |
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| #3: タンパク質 | 分子量: 41282.895 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: GNAQ, GAQ発現宿主: ![]() 参照: UniProt: P50148 |
| #4: タンパク質 | 分子量: 46307.594 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: NTSR1発現宿主: ![]() 参照: UniProt: P30989 |
-タンパク質・ペプチド , 1種, 1分子 L
| #2: タンパク質・ペプチド | 分子量: 819.007 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) |
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-非ポリマー , 5種, 5分子 








| #5: 化合物 | ChemComp-STU / |
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| #6: 化合物 | ChemComp-GDP / |
| #7: 化合物 | ChemComp-MG / |
| #8: 化合物 | ChemComp-ALF / |
| #9: 化合物 | ChemComp-SRW / |
-詳細
| 研究の焦点であるリガンドがあるか | N |
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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: NTSR1-GRK2-Galpha(q) complexes 1 / タイプ: COMPLEX / Entity ID: #1-#4 / 由来: RECOMBINANT |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: ![]() |
| 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 |
| 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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: DARK FIELD / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 1200 nm |
| 撮影 | 電子線照射量: 50 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: 3.07 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 474232 / 対称性のタイプ: POINT |
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万見について





Homo sapiens (ヒト)
中国, 1件
引用








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FIELD EMISSION GUN