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基本情報
登録情報 | データベース: PDB / ID: 9ee9 | |||||||||||||||||||||||||||
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タイトル | GPCR A family receptor | |||||||||||||||||||||||||||
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![]() | SIGNALING PROTEIN/IMMUNE SYSTEM / GPCR / Heterotrimer / Receptor / cryo-EM / SIGNALING PROTEIN-IMMUNE SYSTEM complex | |||||||||||||||||||||||||||
機能・相同性 | ![]() regulation of norepinephrine secretion / positive regulation of circadian sleep/wake cycle, sleep / positive regulation of acetylcholine secretion, neurotransmission / negative regulation of alpha-beta T cell activation / Adenosine P1 receptors / G protein-coupled adenosine receptor activity / response to purine-containing compound / G protein-coupled adenosine receptor signaling pathway / NGF-independant TRKA activation / sensory perception ...regulation of norepinephrine secretion / positive regulation of circadian sleep/wake cycle, sleep / positive regulation of acetylcholine secretion, neurotransmission / negative regulation of alpha-beta T cell activation / Adenosine P1 receptors / G protein-coupled adenosine receptor activity / response to purine-containing compound / G protein-coupled adenosine receptor signaling pathway / NGF-independant TRKA activation / sensory perception / Surfactant metabolism / positive regulation of urine volume / synaptic transmission, dopaminergic / inhibitory postsynaptic potential / type 5 metabotropic glutamate receptor binding / negative regulation of vascular permeability / positive regulation of glutamate secretion / synaptic transmission, cholinergic / response to caffeine / blood circulation / intermediate filament / eating behavior / alpha-actinin binding / presynaptic active zone / regulation of calcium ion transport / PKA activation in glucagon signalling / membrane depolarization / asymmetric synapse / axolemma / hair follicle placode formation / developmental growth / D1 dopamine receptor binding / phagocytosis / intracellular transport / prepulse inhibition / vascular endothelial cell response to laminar fluid shear stress / cellular defense response / renal water homeostasis / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / presynaptic modulation of chemical synaptic transmission / response to amphetamine / regulation of insulin secretion / cellular response to glucagon stimulus / positive regulation of synaptic transmission, glutamatergic / adenylate cyclase activator activity / neuron projection morphogenesis / regulation of mitochondrial membrane potential / central nervous system development / positive regulation of apoptotic signaling pathway / trans-Golgi network membrane / positive regulation of long-term synaptic potentiation / excitatory postsynaptic potential / positive regulation of synaptic transmission, GABAergic / synaptic transmission, glutamatergic / positive regulation of protein secretion / locomotory behavior / astrocyte activation / apoptotic signaling pathway / negative regulation of inflammatory response to antigenic stimulus / bone development / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / negative regulation of inflammatory response / platelet aggregation / Olfactory Signaling Pathway / cognition / 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 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / 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 / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / blood coagulation / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / vasodilation / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / sensory perception of smell / GPER1 signaling 類似検索 - 分子機能 | |||||||||||||||||||||||||||
生物種 | ![]() ![]() ![]() | |||||||||||||||||||||||||||
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: 3.16 Å | |||||||||||||||||||||||||||
![]() | Bi, M. / Wang, X. / Ye, L. / Cheng, Y. | |||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structure and function of a near fully-activated intermediate GPCR-Gαβγ complex. 著者: Maxine Bi / Xudong Wang / Jinan Wang / Jun Xu / Wenkai Sun / Victor Ayo Adediwura / Yinglong Miao / Yifan Cheng / Libin Ye / ![]() 要旨: Unraveling the signaling roles of intermediate complexes is pivotal for G protein-coupled receptor (GPCR) drug development. Despite hundreds of GPCR-Gαβγ structures, these snapshots primarily ...Unraveling the signaling roles of intermediate complexes is pivotal for G protein-coupled receptor (GPCR) drug development. Despite hundreds of GPCR-Gαβγ structures, these snapshots primarily capture the fully activated complex. Consequently, the functions of intermediate GPCR-G protein complexes remain elusive. Guided by a conformational landscape visualized via F quantitative NMR and molecular dynamics (MD) simulations, we determined the structure of an intermediate GPCR-mini-Gαβγ complex at 2.6 Å using cryo-EM, by blocking its transition to the fully activated complex. Furthermore, we present direct evidence that the complex at this intermediate state initiates a rate-limited nucleotide exchange before transitioning to the fully activated complex. In this state, BODIPY-GDP/GTP based nucleotide exchange assays further indicated the α-helical domain of the Gα is partially open, allowing it to grasp a nucleotide at a non-canonical binding site, distinct from the canonical nucleotide-binding site. These advances bridge a significant gap in our understanding of the complexity of GPCR signaling. | |||||||||||||||||||||||||||
履歴 |
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構造の表示
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 | ![]() | 367.6 KB | 表示 | ![]() |
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PDB形式 | ![]() | 294.8 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 | ![]() 47952MC ![]() 9ee8C ![]() 9eeaC 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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要素
-Guanine nucleotide-binding protein ... , 3種, 3分子 BCD
#2: タンパク質 | 分子量: 37728.152 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: P62873 |
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#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) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P59768 |
#4: タンパク質 | 分子量: 30776.713 Da / 分子数: 1 / Fragment: UNP residues 5-64,204-394 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() 参照: 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 |
-タンパク質 / 抗体 / 非ポリマー , 3種, 3分子 AE

#1: タンパク質 | 分子量: 39517.078 Da / 分子数: 1 / 変異: V229C, R291A / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#5: 抗体 | 分子量: 16926.076 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
#6: 化合物 | ChemComp-ADN / |
-詳細
研究の焦点であるリガンドがあるか | Y |
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Has protein modification | 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: CELL / 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: Cryo-EM structure of the GPCR bound to a miniGs heterotrimer タイプ: COMPLEX / Entity ID: #1-#5 / 由来: MULTIPLE SOURCES |
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分子量 | 値: 0.144 MDa / 実験値: YES |
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 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K |
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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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 1800 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 47.7 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.16 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 43472 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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