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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 | ||||||
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![]() | SIGNALING PROTEIN / Biased signaling | ||||||
機能・相同性 | ![]() 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 / beta-adrenergic receptor kinase activity / G protein-coupled neurotensin receptor activity / G protein-coupled receptor kinase activity / Edg-2 lysophosphatidic acid receptor binding / alpha-2A adrenergic receptor binding ...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 / beta-adrenergic receptor kinase activity / G protein-coupled neurotensin receptor activity / G protein-coupled receptor kinase activity / Edg-2 lysophosphatidic acid receptor binding / alpha-2A adrenergic receptor binding / inositol phosphate catabolic process / tachykinin receptor signaling pathway / symmetric synapse / 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 / positive regulation of protein localization to cilium / Cargo recognition for clathrin-mediated endocytosis / 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 / entrainment of circadian clock / regulation of platelet activation / positive regulation of arachidonate secretion / regulation of the force of heart contraction / L-glutamate import across plasma membrane / regulation of respiratory gaseous exchange / positive regulation of inhibitory postsynaptic potential / positive regulation of smoothened signaling pathway / G protein-coupled receptor internalization / negative regulation of systemic arterial blood pressure / positive regulation of glutamate secretion / negative regulation of release of sequestered calcium ion into cytosol / regulation of canonical Wnt signaling pathway / G alpha (s) signalling events / glutamate receptor signaling pathway / G alpha (q) signalling events / positive regulation of inositol phosphate biosynthetic process / response to lipid / temperature homeostasis / detection of temperature stimulus involved in sensory perception of pain / phototransduction, visible light / postsynaptic cytosol / photoreceptor outer segment / neuropeptide signaling pathway / regulation of signal transduction / cardiac muscle contraction / enzyme regulator activity / response to prostaglandin E / GTPase activator activity / viral genome replication / positive regulation of release of sequestered calcium ion into cytosol / dendritic shaft / Peptide ligand-binding receptors / adult locomotory behavior / learning / Turbulent (oscillatory, disturbed) flow shear stress activates signaling by PIEZO1 and integrins in endothelial cells / negative regulation of protein kinase activity / cell projection / intracellular protein transport / G protein-coupled receptor binding / terminal bouton / G protein-coupled receptor activity / G-protein beta/gamma-subunit complex binding / cytoplasmic side of plasma membrane / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G-protein activation / 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) / peptidyl-serine phosphorylation / G protein activity / heart development / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / 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 / phospholipase C-activating G protein-coupled receptor signaling pathway / chemical synaptic transmission / nuclear membrane / G alpha (q) signalling events / dendritic spine / perikaryon / postsynapse / protein kinase activity / protein stabilization / protein phosphorylation / G protein-coupled receptor signaling pathway / positive regulation of apoptotic process / membrane raft / symbiont entry into host cell / lysosomal membrane 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: 3.07 Å | ||||||
![]() | Duan, J. / Liu, H. / Zhao, F. / Yuan, Q. / Ji, Y. / Xu, H.E. | ||||||
資金援助 | ![]()
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![]() | ![]() 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. | ||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 259.7 KB | 表示 | ![]() |
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PDB形式 | ![]() | 196.7 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | 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 ![]() |
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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) ![]() 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) ![]() 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: ![]() |
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: ![]() |
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 |