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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: 8dwg | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| タイトル | CryoEM structure of Gq-coupled MRGPRX1 with peptide ligand BAM8-22 and positive allosteric modulator ML382 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
要素 |
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キーワード | SIGNALING PROTEIN / GPCR | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報Peptide ligand-binding receptors / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / Post-translational protein phosphorylation / response to chloroquine / chromaffin granule lumen / opioid peptide activity / aggressive behavior / G protein-coupled opioid receptor signaling pathway / sensory perception / G alpha (i) signalling events ...Peptide ligand-binding receptors / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / Post-translational protein phosphorylation / response to chloroquine / chromaffin granule lumen / opioid peptide activity / aggressive behavior / G protein-coupled opioid receptor signaling pathway / sensory perception / G alpha (i) signalling events / startle response / transmission of nerve impulse / neuropeptide signaling pathway / behavioral fear response / axon terminus / sensory perception of pain / acute-phase response / locomotory behavior / G protein-coupled receptor activity / Olfactory Signaling Pathway / 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 / 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 / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / ADP signalling through P2Y purinoceptor 1 / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / transmembrane signaling receptor activity / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / GTPase binding / Ca2+ pathway / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / chemical synaptic transmission / G alpha (q) signalling events / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell surface receptor signaling pathway / cell population proliferation / defense response to bacterium / G protein-coupled receptor signaling pathway / lysosomal membrane / neuronal cell body / GTPase activity / synapse / dendrite / protein-containing complex binding / cell surface / signal transduction / extracellular exosome / extracellular region / membrane / plasma membrane / cytosol / cytoplasm 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: 2.71 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
データ登録者 | Liu, Y. / Cao, C. / Fay, J.F. / Roth, B.L. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 資金援助 | 米国, 2件
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引用 | ジャーナル: Nat Chem Biol / 年: 2023タイトル: Ligand recognition and allosteric modulation of the human MRGPRX1 receptor. 著者: Yongfeng Liu / Can Cao / Xi-Ping Huang / Ryan H Gumpper / Moira M Rachman / Sheng-Luen Shih / Brian E Krumm / Shicheng Zhang / Brian K Shoichet / Jonathan F Fay / Bryan L Roth / ![]() 要旨: The human MAS-related G protein-coupled receptor X1 (MRGPRX1) is preferentially expressed in the small-diameter primary sensory neurons and involved in the mediation of nociception and pruritus. ...The human MAS-related G protein-coupled receptor X1 (MRGPRX1) is preferentially expressed in the small-diameter primary sensory neurons and involved in the mediation of nociception and pruritus. Central activation of MRGPRX1 by the endogenous opioid peptide fragment BAM8-22 and its positive allosteric modulator ML382 has been shown to effectively inhibit persistent pain, making MRGPRX1 a promising target for non-opioid pain treatment. However, the activation mechanism of MRGPRX1 is still largely unknown. Here we report three high-resolution cryogenic electron microscopy structures of MRGPRX1-Gαq in complex with BAM8-22 alone, with BAM8-22 and ML382 simultaneously as well as with a synthetic agonist compound-16. These structures reveal the agonist binding mode for MRGPRX1 and illuminate the structural requirements for positive allosteric modulation. Collectively, our findings provide a molecular understanding of the activation and allosteric modulation of the MRGPRX1 receptor, which could facilitate the structure-based design of non-opioid pain-relieving drugs. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | 8dwg.cif.gz | 204.4 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8dwg.ent.gz | 155.3 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8dwg.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
| 文書・要旨 | 8dwg_validation.pdf.gz | 1.2 MB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 8dwg_full_validation.pdf.gz | 1.2 MB | 表示 | |
| XML形式データ | 8dwg_validation.xml.gz | 45.8 KB | 表示 | |
| CIF形式データ | 8dwg_validation.cif.gz | 70.3 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/dw/8dwg ftp://data.pdbj.org/pub/pdb/validation_reports/dw/8dwg | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 27753MC ![]() 8dwcC ![]() 8dwhC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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
-タンパク質 , 2種, 2分子 BR
| #2: 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)発現宿主: ![]() |
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| #5: タンパク質 | 分子量: 36299.879 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: MRGPRX1, MRGX1, SNSR3, SNSR4発現宿主: ![]() 参照: UniProt: Q96LB2 |
-Guanine nucleotide-binding protein ... , 2種, 2分子 CD
| #3: 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) Homo sapiens (ヒト) / 遺伝子: GNB1発現宿主: ![]() 参照: UniProt: P62873 |
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| #4: 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 |
-タンパク質・ペプチド / 抗体 / 非ポリマー , 3種, 3分子 AE

| #1: タンパク質・ペプチド | 分子量: 1974.225 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: P01211 |
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| #6: 抗体 | 分子量: 27409.588 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() |
| #7: 化合物 | ChemComp-U39 / |
-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: MRGPRX1-Gq BAM8-22 / タイプ: COMPLEX / Entity ID: #1-#6 / 由来: RECOMBINANT | ||||||||||||
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| 分子量 | 値: 150 kDa/nm / 実験値: NO | ||||||||||||
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| 由来(組換発現) |
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| 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-PROPANE |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Talos Arctica / 画像提供: FEI Company |
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| 顕微鏡 | モデル: FEI TALOS ARCTICA |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 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): 2400 nm / 最小 デフォーカス(公称値): 200 nm |
| 撮影 | 電子線照射量: 45 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| ソフトウェア | 名称: PHENIX / バージョン: 1.18.2_3874: / 分類: 精密化 | ||||||||||||||||||||||||
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| EMソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.71 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 290962 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 拘束条件 |
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万見について





Homo sapiens (ヒト)
米国, 2件
引用




PDBj























gel filtration

