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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: 9v6o | |||||||||||||||||||||
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| タイトル | Cryo-EM structure of human kappa opioid receptor - G protein signaling complex bound with nalfurafine. | |||||||||||||||||||||
要素 |
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キーワード | MEMBRANE PROTEIN / signal transduction | |||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報response to acrylamide / adenylate cyclase-inhibiting opioid receptor signaling pathway / dynorphin receptor activity / regulation of saliva secretion / negative regulation of luteinizing hormone secretion / sensory perception of temperature stimulus / positive regulation of eating behavior / G protein-coupled opioid receptor activity / G protein-coupled opioid receptor signaling pathway / positive regulation of dopamine secretion ...response to acrylamide / adenylate cyclase-inhibiting opioid receptor signaling pathway / dynorphin receptor activity / regulation of saliva secretion / negative regulation of luteinizing hormone secretion / sensory perception of temperature stimulus / positive regulation of eating behavior / G protein-coupled opioid receptor activity / G protein-coupled opioid receptor signaling pathway / positive regulation of dopamine secretion / sensory perception / maternal behavior / positive regulation of potassium ion transmembrane transport / receptor serine/threonine kinase binding / positive regulation of p38MAPK cascade / neuropeptide binding / eating behavior / conditioned place preference / neuropeptide signaling pathway / estrous cycle / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / MECP2 regulates neuronal receptors and channels / behavioral response to cocaine / T cell migration / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / response to prostaglandin E / adenylate cyclase regulator activity / G protein-coupled serotonin receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / axon terminus / sensory perception of pain / T-tubule / cellular response to forskolin / regulation of mitotic spindle organization / Peptide ligand-binding receptors / sarcoplasmic reticulum / response to nicotine / Regulation of insulin secretion / locomotory behavior / cellular response to glucose stimulus / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / response to insulin / response to peptide hormone / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / response to estrogen / centriolar satellite / G-protein beta/gamma-subunit complex binding / 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 / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / 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 / photoreceptor disc membrane / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GDP binding / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / synaptic vesicle membrane / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / 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 / 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 / cellular response to lipopolysaccharide / G protein activity / presynaptic membrane / GTPase binding / Ca2+ pathway / fibroblast proliferation / midbody 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: 2.76 Å | |||||||||||||||||||||
データ登録者 | Suno-Ikeda, C. / Takai, T. / Hirose, M. / Inoue, A. / Sugita, Y. / Kato, T. / Kobayashi, T. / Suno, R. | |||||||||||||||||||||
| 資金援助 | 日本, 6件
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引用 | ジャーナル: Nat Commun / 年: 2025タイトル: Structural and dynamic insights into the biased signaling mechanism of the human kappa opioid receptor. 著者: Chiyo Suno-Ikeda / Ryo Nishikawa / Riko Suzuki / Shun Yokoi / Seiya Iwata / Tomoyo Takai / Takaya Ogura / Mika Hirose / Akihisa Tokuda / Risako Katamoto / Akitoshi Inoue / Eri Asai / Ryoji ...著者: Chiyo Suno-Ikeda / Ryo Nishikawa / Riko Suzuki / Shun Yokoi / Seiya Iwata / Tomoyo Takai / Takaya Ogura / Mika Hirose / Akihisa Tokuda / Risako Katamoto / Akitoshi Inoue / Eri Asai / Ryoji Kise / Yukihiko Sugita / Takayuki Kato / Hiroshi Nagase / Ayori Mitsutake / Tsuyoshi Saitoh / Kota Katayama / Asuka Inoue / Hideki Kandori / Takuya Kobayashi / Ryoji Suno / ![]() 要旨: The κ-opioid receptor (KOR) is a member of the G protein-coupled receptor (GPCR) family, modulating cellular responses through transducers such as G proteins and β-arrestins. G-protein-biased KOR ...The κ-opioid receptor (KOR) is a member of the G protein-coupled receptor (GPCR) family, modulating cellular responses through transducers such as G proteins and β-arrestins. G-protein-biased KOR agonists aim to retain analgesic and antipruritic actions while limiting aversion and sedation. Aiming to inform G-biased KOR agonist design, we analyze signaling-relevant residues from structural and dynamic views. Here we show, using multiple complementary methods, shared residues that determine β-arrestin recruitment by nalfurafine and U-50,488H. Cryo-electron microscopy structures of the KOR-G signaling complexes identify the ligand binding mode in the activated state. Vibrational spectroscopy reveals ligand-induced conformational changes. Cell-based mutant experiments pinpoint four amino acids (K227, C286, H291, and Y312; Ballesteros-Weinstein numbering is shown in superscript) that play crucial roles in β-arrestin recruitment. Furthermore, MD simulations revealed that the four mutants tend to adopt conformations with reduced β-arrestin recruitment activity. Our research findings provide a foundation for enhancing KOR-mediated therapeutic effects while minimizing unwanted side effects by targeting specific residues within the KOR ligand-binding pocket, including K227 and Y312, which have previously been implicated in biased signaling. | |||||||||||||||||||||
| 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 | 9v6o.cif.gz | 230.9 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9v6o.ent.gz | 174.7 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9v6o.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 | 9v6o_validation.pdf.gz | 1.3 MB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 9v6o_full_validation.pdf.gz | 1.3 MB | 表示 | |
| XML形式データ | 9v6o_validation.xml.gz | 41.7 KB | 表示 | |
| CIF形式データ | 9v6o_validation.cif.gz | 62.6 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/v6/9v6o ftp://data.pdbj.org/pub/pdb/validation_reports/v6/9v6o | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 64947MC ![]() 9w49C 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: 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: 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 |
| #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 |
-タンパク質 / 抗体 / 非ポリマー , 3種, 3分子 RS

| #4: タンパク質 | 分子量: 38707.777 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: OPRK1発現宿主: ![]() 参照: UniProt: P41145 |
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| #5: 抗体 | 分子量: 27318.389 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: ![]() |
| #6: 化合物 | ChemComp-IVB / |
-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: Cryo-EM structure of the nalfurafine bound human opioid receptor タイプ: COMPLEX / Entity ID: #1-#5 / 由来: RECOMBINANT |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 7.5 |
| 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: TFS 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): 1500 nm / 最小 デフォーカス(公称値): 700 nm / C2レンズ絞り径: 50 µm |
| 撮影 | 電子線照射量: 60 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| EMソフトウェア | 名称: PHENIX / バージョン: 1.21_5207 / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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| CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.76 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 7066947 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 精密化 | 最高解像度: 2.76 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
| 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)
日本, 6件
引用


PDBj



































FIELD EMISSION GUN