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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: 8thl | |||||||||
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| タイトル | Cryo-EM structure of epinephrine-bound alpha-1A-adrenergic receptor in complex with heterotrimeric Gq-protein | |||||||||
要素 |
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キーワード | SIGNALING PROTEIN / Alpha-1A-adrenergic receptor / Epinephrine | |||||||||
| 機能・相同性 | 機能・相同性情報negative regulation of heart rate involved in baroreceptor response to increased systemic arterial blood pressure / alpha1-adrenergic receptor activity / norepinephrine-epinephrine vasoconstriction involved in regulation of systemic arterial blood pressure / positive regulation of heart rate by epinephrine-norepinephrine / positive regulation of the force of heart contraction by epinephrine-norepinephrine / pilomotor reflex / phospholipase C-activating adrenergic receptor signaling pathway / neuron-glial cell signaling / cell growth involved in cardiac muscle cell development / negative regulation of adenylate cyclase-activating adrenergic receptor signaling pathway ...negative regulation of heart rate involved in baroreceptor response to increased systemic arterial blood pressure / alpha1-adrenergic receptor activity / norepinephrine-epinephrine vasoconstriction involved in regulation of systemic arterial blood pressure / positive regulation of heart rate by epinephrine-norepinephrine / positive regulation of the force of heart contraction by epinephrine-norepinephrine / pilomotor reflex / phospholipase C-activating adrenergic receptor signaling pathway / neuron-glial cell signaling / cell growth involved in cardiac muscle cell development / negative regulation of adenylate cyclase-activating adrenergic receptor signaling pathway / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / sensory perception of itch / phospholipase C-activating G protein-coupled glutamate receptor signaling pathway / positive regulation of action potential / PLC beta mediated events / phospholipase C-activating serotonin receptor signaling pathway / negative regulation of calcium ion-dependent exocytosis / regulation of platelet activation / G protein-coupled adenosine receptor signaling pathway / positive regulation of smooth muscle contraction / entrainment of circadian clock / negative regulation of adenylate cyclase activity / positive regulation of neural precursor cell proliferation / negative regulation of synaptic transmission / adult heart development / Adrenoceptors / positive regulation of urine volume / regulation of canonical Wnt signaling pathway / glutamate receptor signaling pathway / mast cell degranulation / gamma-aminobutyric acid signaling pathway / positive regulation of cardiac muscle hypertrophy / regulation of calcium ion transport / adenylate cyclase-activating G protein-coupled bile acid receptor signaling pathway / adenylate cyclase-activating serotonin receptor signaling pathway / regulation of skeletal muscle contraction / smooth muscle contraction / negative regulation of apoptotic signaling pathway / phototransduction, visible light / PKA activation in glucagon signalling / positive regulation of vasoconstriction / hair follicle placode formation / developmental growth / intracellular transport / photoreceptor outer segment / D1 dopamine receptor binding / postsynaptic cytosol / viral release from host cell by cytolysis / neuronal dense core vesicle / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / activation of adenylate cyclase activity / Hedgehog 'off' state / positive regulation of vascular associated smooth muscle cell proliferation / cellular response to acidic pH / adenylate cyclase-activating adrenergic receptor signaling pathway / positive regulation of superoxide anion generation / peptidoglycan catabolic process / Adenylate cyclase inhibitory pathway / hormone-mediated signaling pathway / positive regulation of cardiac muscle contraction / response to hormone / response to nutrient / cellular response to glucagon stimulus / intracellular glucose homeostasis / Turbulent (oscillatory, disturbed) flow shear stress activates signaling by PIEZO1 and integrins in endothelial cells / positive regulation of insulin secretion involved in cellular response to glucose stimulus / adenylate cyclase activator activity / positive regulation of synaptic transmission, GABAergic / hippocampal mossy fiber to CA3 synapse / trans-Golgi network membrane / GTPase activator activity / negative regulation of autophagy / negative regulation of inflammatory response to antigenic stimulus / Regulation of insulin secretion / neuropeptide signaling pathway / response to prostaglandin E / bone development / G protein-coupled receptor binding / caveola / platelet aggregation / cognition / G-protein beta/gamma-subunit complex binding / cell wall macromolecule catabolic process / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / blood coagulation / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G protein-coupled acetylcholine receptor signaling pathway / positive regulation of insulin secretion / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / lysozyme / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / lysozyme activity / Glucagon signaling in metabolic regulation 類似検索 - 分子機能 | |||||||||
| 生物種 | Homo sapiens (ヒト) Enterobacteria phage T4 (ファージ) | |||||||||
| 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: 3.1 Å | |||||||||
データ登録者 | Su, M. / Huang, X.Y. | |||||||||
| 資金援助 | 米国, 2件
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引用 | ジャーナル: Nat Commun / 年: 2023タイトル: Structural basis of agonist specificity of α-adrenergic receptor. 著者: Minfei Su / Jinan Wang / Guoqing Xiang / Hung Nguyen Do / Joshua Levitz / Yinglong Miao / Xin-Yun Huang / ![]() 要旨: α-adrenergic receptors (α-ARs) play critical roles in the cardiovascular and nervous systems where they regulate blood pressure, cognition, and metabolism. However, the lack of specific agonists ...α-adrenergic receptors (α-ARs) play critical roles in the cardiovascular and nervous systems where they regulate blood pressure, cognition, and metabolism. However, the lack of specific agonists for all α subtypes has limited our understanding of the physiological roles of different α-AR subtypes, and led to the stagnancy in agonist-based drug development for these receptors. Here we report cryo-EM structures of α-AR in complex with heterotrimeric G-proteins and either the endogenous common agonist epinephrine or the α-AR-specific synthetic agonist A61603. These structures provide molecular insights into the mechanisms underlying the discrimination between α-AR and α-AR by A61603. Guided by the structures and corresponding molecular dynamics simulations, we engineer α-AR mutants that are not responsive to A61603, and α-AR mutants that can be potently activated by A61603. Together, these findings advance our understanding of the agonist specificity for α-ARs at the molecular level, opening the possibility of rational design of subtype-specific agonists. | |||||||||
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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 | 8thl.cif.gz | 223.8 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8thl.ent.gz | 165.6 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8thl.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/th/8thl ftp://data.pdbj.org/pub/pdb/validation_reports/th/8thl | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 41268MC ![]() 8thkC 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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要素
-Guanine nucleotide-binding protein ... , 3種, 3分子 ABG
| #1: タンパク質 | 分子量: 28084.832 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: GNAI2, GNAI2B, GNAS, GNAS1, GSP, GNAQ, GAQ発現宿主: ![]() 参照: UniProt: P04899, UniProt: P63092, UniProt: P50148 |
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| #2: タンパク質 | 分子量: 39418.086 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 |
-抗体 / タンパク質 / 非ポリマー , 3種, 3分子 FR

| #4: 抗体 | 分子量: 28668.922 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: ![]() |
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| #5: タンパク質 | 分子量: 56485.246 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Enterobacteria phage T4 (ファージ), (組換発現) Homo sapiens (ヒト)遺伝子: E, ADRA1A, ADRA1C 発現宿主: ![]() 参照: UniProt: P00720, UniProt: P35348, lysozyme |
| #6: 化合物 | ChemComp-ALE / |
-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: 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: Epinephrine-bound alpha-1A-adrenergic receptor in complex with heterotrimeric Gq-protein タイプ: COMPLEX / Entity ID: #1-#5 / 由来: RECOMBINANT |
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| 分子量 | 値: 0.16 MDa / 実験値: NO |
| 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 |
| 試料 | 濃度: 2.5 mg/ml / 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 |
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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: 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): 1000 nm |
| 撮影 | 電子線照射量: 52 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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| 3次元再構成 | 解像度: 3.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 219834 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 拘束条件 |
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ムービー
コントローラー
万見について




Homo sapiens (ヒト)
Enterobacteria phage T4 (ファージ)
米国, 2件
引用


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FIELD EMISSION GUN