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基本情報
登録情報 | データベース: PDB / ID: 8feg | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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タイトル | CryoEM structure of Kappa Opioid Receptor bound to a semi-peptide and Gi1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() | MEMBRANE PROTEIN / GPCR / KAPPA OPIOID Receptor / ROSETTA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
機能・相同性 | ![]() 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 / positive regulation of potassium ion transmembrane transport / receptor serine/threonine kinase binding / maternal behavior / conditioned place preference / neuropeptide binding / positive regulation of p38MAPK cascade / eating behavior / behavioral response to cocaine / neuropeptide signaling pathway / positive regulation of protein localization to cell cortex / Adenylate cyclase inhibitory pathway / T cell migration / estrous cycle / MECP2 regulates neuronal receptors and channels / D2 dopamine receptor binding / response to prostaglandin E / G protein-coupled serotonin receptor binding / adenylate cyclase regulator activity / 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 / locomotory behavior / Regulation of insulin secretion / response to insulin / response to nicotine / positive regulation of cholesterol biosynthetic process / G protein-coupled receptor binding / cellular response to glucose stimulus / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / response to peptide hormone / G-protein beta/gamma-subunit complex binding / centriolar satellite / 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 / response to estrogen / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / synaptic vesicle membrane / 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 / GDP binding / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / 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) / presynaptic membrane / G protein activity / cellular response to lipopolysaccharide / GTPase binding / retina development in camera-type eye / Ca2+ pathway / midbody / cell cortex / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / fibroblast proliferation 類似検索 - 分子機能 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
生物種 | ![]() ![]() ![]() synthetic construct (人工物) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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: 2.54 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Fay, J.F. / Che, T. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Design and structural validation of peptide-drug conjugate ligands of the kappa-opioid receptor. 著者: Edin Muratspahić / Kristine Deibler / Jianming Han / Nataša Tomašević / Kirtikumar B Jadhav / Aina-Leonor Olivé-Marti / Nadine Hochrainer / Roland Hellinger / Johannes Koehbach / ...著者: Edin Muratspahić / Kristine Deibler / Jianming Han / Nataša Tomašević / Kirtikumar B Jadhav / Aina-Leonor Olivé-Marti / Nadine Hochrainer / Roland Hellinger / Johannes Koehbach / Jonathan F Fay / Mohammad Homaidur Rahman / Lamees Hegazy / Timothy W Craven / Balazs R Varga / Gaurav Bhardwaj / Kevin Appourchaux / Susruta Majumdar / Markus Muttenthaler / Parisa Hosseinzadeh / David J Craik / Mariana Spetea / Tao Che / David Baker / Christian W Gruber / ![]() ![]() ![]() 要旨: Despite the increasing number of GPCR structures and recent advances in peptide design, the development of efficient technologies allowing rational design of high-affinity peptide ligands for single ...Despite the increasing number of GPCR structures and recent advances in peptide design, the development of efficient technologies allowing rational design of high-affinity peptide ligands for single GPCRs remains an unmet challenge. Here, we develop a computational approach for designing conjugates of lariat-shaped macrocyclized peptides and a small molecule opioid ligand. We demonstrate its feasibility by discovering chemical scaffolds for the kappa-opioid receptor (KOR) with desired pharmacological activities. The designed De Novo Cyclic Peptide (DNCP)-β-naloxamine (NalA) exhibit in vitro potent mixed KOR agonism/mu-opioid receptor (MOR) antagonism, nanomolar binding affinity, selectivity, and efficacy bias at KOR. Proof-of-concept in vivo efficacy studies demonstrate that DNCP-β-NalA(1) induces a potent KOR-mediated antinociception in male mice. The high-resolution cryo-EM structure (2.6 Å) of the DNCP-β-NalA-KOR-Gi1 complex and molecular dynamics simulations are harnessed to validate the computational design model. This reveals a network of residues in ECL2/3 and TM6/7 controlling the intrinsic efficacy of KOR. In general, our computational de novo platform overcomes extensive lead optimization encountered in ultra-large library docking and virtual small molecule screening campaigns and offers innovation for GPCR ligand discovery. This may drive the development of next-generation therapeutics for medical applications such as pain conditions. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 212.3 KB | 表示 | ![]() |
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PDB形式 | ![]() | 160.3 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 29026MC 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 ![]() |
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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 CDE
#1: タンパク質 | 分子量: 40414.047 Da / 分子数: 1 / 変異: S47N,G203A,E245A,A326S / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P63096 |
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#2: タンパク質 | 分子量: 39418.086 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: 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) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P59768 |
-抗体 / タンパク質 / タンパク質・ペプチド / 非ポリマー , 4種, 5分子 FBA

#4: 抗体 | 分子量: 26679.721 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() |
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#5: タンパク質 | 分子量: 34944.617 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: P41145 |
#6: タンパク質・ペプチド | 分子量: 1307.512 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) |
#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: Kappa Opioid Receptor in complex with Gi1 heterotrimer and a peptide ligand タイプ: COMPLEX / Entity ID: #1-#6 / 由来: MULTIPLE SOURCES |
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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 |
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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2900 nm / 最小 デフォーカス(公称値): 200 nm |
撮影 | 電子線照射量: 49 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 実像数: 4027 |
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解析
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: 2.54 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 491092 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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