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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: 7t2g | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| タイトル | CryoEM structure of mu-opioid receptor - Gi protein complex bound to mitragynine pseudoindoxyl (MP) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
要素 |
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キーワード | MEMBRANE PROTEIN / GPCR / mu-opioid receptor / lofentanil (LFT) / mitragynine pseudoindoxyl (MP) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報Opioid Signalling / spine apparatus / positive regulation of appetite / sperm ejaculation / G-protein activation / adenylate cyclase-inhibiting opioid receptor signaling pathway / Peptide ligand-binding receptors / beta-endorphin receptor activity / morphine receptor activity / negative regulation of Wnt protein secretion ...Opioid Signalling / spine apparatus / positive regulation of appetite / sperm ejaculation / G-protein activation / adenylate cyclase-inhibiting opioid receptor signaling pathway / Peptide ligand-binding receptors / beta-endorphin receptor activity / morphine receptor activity / negative regulation of Wnt protein secretion / negative regulation of luteinizing hormone secretion / G protein-coupled opioid receptor activity / G protein-coupled opioid receptor signaling pathway / regulation of cellular response to stress / G alpha (i) signalling events / negative regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / negative regulation of nitric oxide biosynthetic process / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / behavioral response to ethanol / regulation of NMDA receptor activity / neuropeptide binding / positive regulation of neurogenesis / eating behavior / negative regulation of cytosolic calcium ion concentration / transmission of nerve impulse / G-protein alpha-subunit binding / social behavior / voltage-gated calcium channel activity / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / T cell migration / positive regulation of relaxation of smooth muscle / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding / T-tubule / sensory perception of pain / positive regulation of gluconeogenesis / dendrite membrane / cellular response to forskolin / presynaptic modulation of chemical synaptic transmission / dendrite cytoplasm / regulation of mitotic spindle organization / chemokine-mediated signaling pathway / sarcoplasmic reticulum / Regulation of insulin secretion / neuropeptide signaling pathway / response to prostaglandin E / locomotory behavior / excitatory postsynaptic potential / electron transport chain / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / sarcolemma / response to peptide hormone / G protein-coupled receptor activity / GABA-ergic synapse / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / centriolar satellite / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G protein-coupled acetylcholine 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 / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / GDP binding / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / G-protein beta-subunit binding / G alpha (12/13) signalling events / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / sensory perception of taste 類似検索 - 分子機能 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 生物種 | Homo sapiens (ヒト)![]() ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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: 2.5 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
データ登録者 | Seven, A.B. / Qu, Q. / Robertson, M.J. / Wang, H. / Kobilka, B.K. / Skiniotis, G. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nat Chem Biol / 年: 2023タイトル: Insights into distinct signaling profiles of the µOR activated by diverse agonists. 著者: Qianhui Qu / Weijiao Huang / Deniz Aydin / Joseph M Paggi / Alpay B Seven / Haoqing Wang / Soumen Chakraborty / Tao Che / Jeffrey F DiBerto / Michael J Robertson / Asuka Inoue / Carl-Mikael ...著者: Qianhui Qu / Weijiao Huang / Deniz Aydin / Joseph M Paggi / Alpay B Seven / Haoqing Wang / Soumen Chakraborty / Tao Che / Jeffrey F DiBerto / Michael J Robertson / Asuka Inoue / Carl-Mikael Suomivuori / Bryan L Roth / Susruta Majumdar / Ron O Dror / Brian K Kobilka / Georgios Skiniotis / ![]() 要旨: Drugs targeting the μ-opioid receptor (μOR) are the most effective analgesics available but are also associated with fatal respiratory depression through a pathway that remains unclear. Here we ...Drugs targeting the μ-opioid receptor (μOR) are the most effective analgesics available but are also associated with fatal respiratory depression through a pathway that remains unclear. Here we investigated the mechanistic basis of action of lofentanil (LFT) and mitragynine pseudoindoxyl (MP), two μOR agonists with different safety profiles. LFT, one of the most lethal opioids, and MP, a kratom plant derivative with reduced respiratory depression in animal studies, exhibited markedly different efficacy profiles for G protein subtype activation and β-arrestin recruitment. Cryo-EM structures of μOR-Gi1 complex with MP (2.5 Å) and LFT (3.2 Å) revealed that the two ligands engage distinct subpockets, and molecular dynamics simulations showed additional differences in the binding site that promote distinct active-state conformations on the intracellular side of the receptor where G proteins and β-arrestins bind. These observations highlight how drugs engaging different parts of the μOR orthosteric pocket can lead to distinct signaling outcomes. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 履歴 |
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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 | 7t2g.cif.gz | 197.5 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb7t2g.ent.gz | 145.8 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 7t2g.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/t2/7t2g ftp://data.pdbj.org/pub/pdb/validation_reports/t2/7t2g | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 25612MC ![]() 7t2hC 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 ABC
| #1: タンパク質 | 分子量: 40415.031 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: GNAI1発現宿主: ![]() 参照: UniProt: P63096 |
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| #2: タンパク質 | 分子量: 37671.102 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: ![]() 株 (発現宿主): GNG2 / 参照: UniProt: P59768 |
-タンパク質 , 1種, 1分子 R
| #4: タンパク質 | 分子量: 55123.824 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: cybC, Oprm1, Mor, Oprm 発現宿主: ![]() 参照: UniProt: P0ABE7, UniProt: P42866 |
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-非ポリマー , 3種, 11分子 




| #5: 化合物 | ChemComp-EIG / | ||
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| #6: 化合物 | | #7: 水 | ChemComp-HOH / | |
-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: mu-opioid receptor / Gi protein complex bound to mitragynine pseudoindoxyl (MP). タイプ: COMPLEX 詳細: mu-opioid receptor / Gi protein complex bound to mitragynine pseudoindoxyl (MP). Entity ID: #1-#4 / 由来: MULTIPLE SOURCES |
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| 分子量 | 実験値: NO |
| 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: 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): 2000 nm / 最小 デフォーカス(公称値): 1000 nm |
| 撮影 | 電子線照射量: 56 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 413821 / 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)


米国, 1件
引用




PDBj



































FIELD EMISSION GUN