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基本情報
登録情報 | データベース: PDB / ID: 9mqj | ||||||||||||
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タイトル | Locally-refined Inactive Mu-Opioid Receptor with Nb6M, NabFab, and isoquinuclidine compound #020_E1 | ||||||||||||
![]() | Mu-type opioid receptor | ||||||||||||
![]() | MEMBRANE PROTEIN / G-protein coupled receptor / Mu-opioid / isoquinuclidine / antagonist / nanobodies / fabs | ||||||||||||
機能・相同性 | ![]() Opioid Signalling / positive regulation of cAMP-mediated signaling / beta-endorphin receptor activity / morphine receptor activity / negative regulation of Wnt protein secretion / regulation of cellular response to stress / G protein-coupled opioid receptor signaling pathway / negative regulation of nitric oxide biosynthetic process / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / behavioral response to ethanol ...Opioid Signalling / positive regulation of cAMP-mediated signaling / beta-endorphin receptor activity / morphine receptor activity / negative regulation of Wnt protein secretion / regulation of cellular response to stress / G protein-coupled opioid receptor signaling pathway / negative regulation of nitric oxide biosynthetic process / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / behavioral response to ethanol / sensory perception / neuropeptide binding / regulation of NMDA receptor activity / positive regulation of neurogenesis / negative regulation of cytosolic calcium ion concentration / negative regulation of cAMP-mediated signaling / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / G-protein alpha-subunit binding / neuropeptide signaling pathway / voltage-gated calcium channel activity / MECP2 regulates neuronal receptors and channels / sensory perception of pain / Peptide ligand-binding receptors / G protein-coupled receptor activity / G-protein activation / positive regulation of nitric oxide biosynthetic process / G-protein beta-subunit binding / positive regulation of cytosolic calcium ion concentration / G alpha (i) signalling events / Interleukin-4 and Interleukin-13 signaling / phospholipase C-activating G protein-coupled receptor signaling pathway / perikaryon / positive regulation of ERK1 and ERK2 cascade / endosome / neuron projection / axon / negative regulation of cell population proliferation / synapse / dendrite / Golgi apparatus / endoplasmic reticulum / plasma membrane 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: 3.23 Å | ||||||||||||
![]() | Kim, J.Y. / Vigneron, S.F. / Billesbolle, C. / Manglik, A. / Shoichet, B.K. | ||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Docking 14 million virtual isoquinuclidines against the mu and kappa opioid receptors reveals dual antagonists-inverse agonists with reduced withdrawal effects. 著者: Seth F Vigneron / Shohei Ohno / Joao Braz / Joseph Y Kim / Oh Sang Kweon / Chase Webb / Christian Billesbølle / Karnika Bhardwaj / John Irwin / Aashish Manglik / Allan I Basbaum / Jonathan A ...著者: Seth F Vigneron / Shohei Ohno / Joao Braz / Joseph Y Kim / Oh Sang Kweon / Chase Webb / Christian Billesbølle / Karnika Bhardwaj / John Irwin / Aashish Manglik / Allan I Basbaum / Jonathan A Ellman / Brian K Shoichet / ![]() 要旨: Large library docking of tangible molecules has revealed potent ligands across many targets. While make-on-demand libraries now exceed 75 billion enumerated molecules, their synthetic routes are ...Large library docking of tangible molecules has revealed potent ligands across many targets. While make-on-demand libraries now exceed 75 billion enumerated molecules, their synthetic routes are dominated by a few reaction types, reducing diversity and inevitably leaving many interesting bioactive-like chemotypes unexplored. Here, we investigate the large-scale enumeration and targeted docking of isoquinuclidines. These "natural-product-like" molecules are rare in the current libraries and are functionally congested, making them interesting as receptor probes. Using a modular, four-component reaction scheme, we built and docked a virtual library of over 14.6 million isoquinuclidines against both the μ- and -opioid receptors (MOR and KOR, respectively). Synthesis and experimental testing of 18 prioritized compounds found nine ligands with low μM affinities. Structure-based optimization revealed low- and sub-nM antagonists and inverse agonists targeting both receptors. Cryo-electron microscopy (cryoEM) structures illuminate the origins of activity on each target. In mouse behavioral studies, a potent member of the series with joint MOR-antagonist and KOR-inverse-agonist activity reversed morphine-induced analgesia, phenocopying the MOR-selective anti-overdose agent naloxone. Encouragingly, the new molecule induced less severe opioid-induced withdrawal symptoms compared to naloxone during withdrawal precipitation, and did not induce conditioned-place aversion, likely reflecting a reduction of dysphoria due to the compound's KOR-inverse agonism. The strengths and weaknesses of bespoke library docking, and of docking for opioid receptor polypharmacology, will be considered. | ||||||||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 71.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 表示 | ![]() | |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
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-検証レポート
文書・要旨 | ![]() | 1.1 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.1 MB | 表示 | |
XML形式データ | ![]() | 24.8 KB | 表示 | |
CIF形式データ | ![]() | 32.4 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 48526MC ![]() 9mqhC ![]() 9mqiC ![]() 9mqkC ![]() 9mqlC 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 ![]() |
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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
#1: タンパク質 | 分子量: 46081.359 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#2: 化合物 | ChemComp-A1BNM / 分子量: 395.495 Da / 分子数: 1 / 由来タイプ: 合成 / 式: C23H29N3O3 / タイプ: SUBJECT OF INVESTIGATION |
研究の焦点であるリガンドがあるか | Y |
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: Human Mu-Opioid Receptor / タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT |
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分子量 | 値: 46 MDa / 実験値: NO |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.5 |
試料 | 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 / グリッドのタイプ: UltrAuFoil R1.2/1.3 |
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: 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): 2100 nm / 最小 デフォーカス(公称値): 800 nm / アライメント法: BASIC |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
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 BIOQUANTUM (6k x 4k) |
電子光学装置 | 位相板: OTHER |
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解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.21.1_5286: / カテゴリ: モデル精密化 |
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CTF補正 | タイプ: PHASE FLIPPING ONLY |
3次元再構成 | 解像度: 3.23 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 259816 / アルゴリズム: FOURIER SPACE / 対称性のタイプ: POINT |