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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: 6k41 | |||||||||||||||||||||||||||||||||
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| タイトル | cryo-EM structure of alpha2BAR-GoA complex | |||||||||||||||||||||||||||||||||
要素 |
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キーワード | MEMBRANE PROTEIN / GPCR / Complex / cryo-EM | |||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報Adrenoceptors / Adrenaline signalling through Alpha-2 adrenergic receptor / Surfactant metabolism / Activation of the phototransduction cascade / Olfactory Signaling Pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Prostacyclin signalling through prostacyclin receptor / alpha2-adrenergic receptor activity / Adrenaline signalling through Alpha-2 adrenergic receptor ...Adrenoceptors / Adrenaline signalling through Alpha-2 adrenergic receptor / Surfactant metabolism / Activation of the phototransduction cascade / Olfactory Signaling Pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Prostacyclin signalling through prostacyclin receptor / alpha2-adrenergic receptor activity / Adrenaline signalling through Alpha-2 adrenergic receptor / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / G alpha (z) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 / Sensory perception of sweet, bitter, and umami (glutamate) taste / alpha-2C adrenergic receptor binding / epinephrine binding / Adrenaline,noradrenaline inhibits insulin secretion / phospholipase C-activating adrenergic receptor signaling pathway / ADP signalling through P2Y purinoceptor 12 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Thromboxane signalling through TP receptor / G beta:gamma signalling through BTK / positive regulation of uterine smooth muscle contraction / Thrombin signalling through proteinase activated receptors (PARs) / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / negative regulation of norepinephrine secretion / G alpha (s) signalling events / negative regulation of epinephrine secretion / Ca2+ pathway / G-protein activation / Extra-nuclear estrogen signaling / G alpha (12/13) signalling events / G alpha (q) signalling events / Vasopressin regulates renal water homeostasis via Aquaporins / GPER1 signaling / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / heterotrimeric G-protein binding / regulation of vascular associated smooth muscle contraction / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / ADP signalling through P2Y purinoceptor 1 / regulation of smooth muscle contraction / positive regulation of blood pressure / G alpha (i) signalling events / dopaminergic synapse / mu-type opioid receptor binding / fear response / vesicle docking involved in exocytosis / corticotropin-releasing hormone receptor 1 binding / thioesterase binding / negative regulation of insulin secretion involved in cellular response to glucose stimulus / adenylate cyclase-inhibiting adrenergic receptor signaling pathway / norepinephrine binding / positive regulation of membrane protein ectodomain proteolysis / Adrenoceptors / G protein-coupled dopamine receptor signaling pathway / Adrenaline,noradrenaline inhibits insulin secretion / G alpha (z) signalling events / photoreceptor outer segment membrane / adrenergic receptor signaling pathway / spectrin binding / positive regulation of wound healing / G alpha (i) signalling events / regulation of heart contraction / alkylglycerophosphoethanolamine phosphodiesterase activity / parallel fiber to Purkinje cell synapse / phototransduction, visible light / photoreceptor outer segment / regulation of vasoconstriction / negative regulation of lipid catabolic process / viral release from host cell by cytolysis / postsynaptic modulation of chemical synaptic transmission / positive regulation of epidermal growth factor receptor signaling pathway / cellular response to hormone stimulus / adenylate cyclase-activating adrenergic receptor signaling pathway / cardiac muscle cell apoptotic process / peptidoglycan catabolic process / photoreceptor inner segment / positive regulation of neuron differentiation / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding / presynaptic modulation of chemical synaptic transmission / muscle contraction / positive regulation of cytokine production / locomotory behavior / female pregnancy / platelet activation / negative regulation of insulin secretion / GABA-ergic synapse / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / epidermal growth factor receptor signaling pathway / cell wall macromolecule catabolic process / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / Activation of G protein gated Potassium channels 類似検索 - 分子機能 | |||||||||||||||||||||||||||||||||
| 生物種 | Homo sapiens (ヒト)![]() ![]() Enterobacteria phage RB59 (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: 2.9 Å | |||||||||||||||||||||||||||||||||
データ登録者 | Yuan, D. / Liu, Z. / Wang, H.W. / Kobilka, B.K. | |||||||||||||||||||||||||||||||||
引用 | ジャーナル: Nat Chem Biol / 年: 2020タイトル: Activation of the α adrenoceptor by the sedative sympatholytic dexmedetomidine. 著者: Daopeng Yuan / Zhongmin Liu / Jonas Kaindl / Shoji Maeda / Jiawei Zhao / Xiaoou Sun / Jun Xu / Peter Gmeiner / Hong-Wei Wang / Brian K Kobilka / ![]() 要旨: The α adrenergic receptors (αARs) are G protein-coupled receptors (GPCRs) that respond to adrenaline and noradrenaline and couple to the Gi/o family of G proteins. αARs play important roles in ...The α adrenergic receptors (αARs) are G protein-coupled receptors (GPCRs) that respond to adrenaline and noradrenaline and couple to the Gi/o family of G proteins. αARs play important roles in regulating the sympathetic nervous system. Dexmedetomidine is a highly selective αAR agonist used in post-operative patients as an anxiety-reducing, sedative medicine that decreases the requirement for opioids. As is typical for selective αAR agonists, dexmedetomidine consists of an imidazole ring and a substituted benzene moiety lacking polar groups, which is in contrast to βAR-selective agonists, which share an ethanolamine group and an aromatic system with polar, hydrogen-bonding substituents. To better understand the structural basis for the selectivity and efficacy of adrenergic agonists, we determined the structure of the αAR in complex with dexmedetomidine and Go at a resolution of 2.9 Å by single-particle cryo-EM. The structure reveals the mechanism of αAR-selective activation and provides insights into Gi/o coupling specificity. | |||||||||||||||||||||||||||||||||
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構造の表示
| ムービー |
ムービービューア |
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| 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 | 6k41.cif.gz | 211.8 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb6k41.ent.gz | 158.7 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 6k41.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/k4/6k41 ftp://data.pdbj.org/pub/pdb/validation_reports/k4/6k41 | HTTPS FTP |
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-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
-Guanine nucleotide-binding protein ... , 3種, 3分子 ABG
| #1: タンパク質 | 分子量: 40100.500 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: GNAO1 / 発現宿主: Spodoptera (蝶・蛾) / 参照: UniProt: P09471 |
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| #2: タンパク質 | 分子量: 38402.867 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Spodoptera (蝶・蛾) / 参照: UniProt: P62874 |
| #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: Spodoptera (蝶・蛾) / 参照: UniProt: P59768 |
-タンパク質 / 抗体 / 非ポリマー , 3種, 3分子 RH

| #4: タンパク質 | 分子量: 58156.211 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() Enterobacteria phage RB59 (ファージ), (組換発現) Homo sapiens (ヒト)遺伝子: ADRA2A, e, RB59_126, ADRA2B, ADRA2L1, ADRA2RL1 / 発現宿主: Spodoptera (蝶・蛾)参照: UniProt: Q28838, UniProt: A0A097J809, UniProt: P18089, lysozyme |
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| #5: 抗体 | 分子量: 32898.781 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Spodoptera (蝶・蛾) |
| #6: 化合物 | ChemComp-CZX / |
-詳細
| Has protein modification | Y |
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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: alpha2BAR-GoA complex / タイプ: COMPLEX / Entity ID: #1-#5 / 由来: MULTIPLE SOURCES |
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| 分子量 | 値: 0.15 MDa / 実験値: YES |
| 由来(天然) | 生物種: Spodoptera (蝶・蛾) |
| 緩衝液 | pH: 7.5 |
| 試料 | 濃度: 10 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 400 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 |
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % |
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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: SPOT SCAN |
| 電子レンズ | モード: BRIGHT FIELD |
| 撮影 | 電子線照射量: 50 e/Å2 / 検出モード: SUPER-RESOLUTION フィルム・検出器のモデル: GATAN K2 SUMMIT (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 | 名称: PHENIX / カテゴリ: モデル精密化 |
| CTF補正 | タイプ: NONE |
| 3次元再構成 | 解像度: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 258283 / 対称性のタイプ: POINT |
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コントローラー
万見について




Homo sapiens (ヒト)
Enterobacteria phage RB59 (ファージ)
引用

UCSF Chimera











PDBj
























Spodoptera (蝶・蛾)
