+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7cx3 | ||||||
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タイトル | Cryo-EM structure of the Taprenepag-bound EP2-Gs complex | ||||||
要素 |
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キーワード | MEMBRANE PROTEIN (膜タンパク質) / GPCR (Gタンパク質共役受容体) / EP2 / Complex / Taprenepag | ||||||
機能・相同性 | 機能・相同性情報 prostaglandin E receptor activity / Prostanoid ligand receptors / response to nematode / PKA activation in glucagon signalling / hair follicle placode formation / developmental growth / intracellular transport / D1 dopamine receptor binding / positive regulation of cAMP-mediated signaling / Hedgehog 'off' state ...prostaglandin E receptor activity / Prostanoid ligand receptors / response to nematode / PKA activation in glucagon signalling / hair follicle placode formation / developmental growth / intracellular transport / D1 dopamine receptor binding / positive regulation of cAMP-mediated signaling / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / adenylate cyclase activator activity / trans-Golgi network membrane / response to progesterone / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / 骨 / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G-protein activation / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / 認識 / photoreceptor disc membrane / 血小板 / Adrenaline,noradrenaline inhibits insulin secretion / positive regulation of GTPase activity / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / sensory perception of smell / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / GTPase binding / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / positive regulation of cold-induced thermogenesis / regulation of cell population proliferation / G alpha (i) signalling events / positive regulation of cytosolic calcium ion concentration / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / cell population proliferation / Ras protein signal transduction / response to lipopolysaccharide / Extra-nuclear estrogen signaling / 炎症 / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / シナプス / protein-containing complex binding / GTP binding / シグナル伝達 / extracellular exosome / 生体膜 / metal ion binding / 細胞膜 / 細胞質基質 / 細胞質 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) 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: 2.8 Å | ||||||
データ登録者 | Qu, C. / Mao, C. / Xiao, P. / Shen, Q. / Zhong, Y. / Yang, F. / Shen, D. / Tao, X. / Zhang, H. / Yan, X. ...Qu, C. / Mao, C. / Xiao, P. / Shen, Q. / Zhong, Y. / Yang, F. / Shen, D. / Tao, X. / Zhang, H. / Yan, X. / Zhao, R. / He, J. / Guan, Y. / Zhang, C. / Hou, G. / Zhang, P. / Yu, X. / Guan, Y. / Sun, J. / Zhang, Y. | ||||||
引用 | ジャーナル: Sci Adv / 年: 2021 タイトル: Ligand recognition, unconventional activation, and G protein coupling of the prostaglandin E receptor EP2 subtype. 著者: Changxiu Qu / Chunyou Mao / Peng Xiao / Qingya Shen / Ya-Ni Zhong / Fan Yang / Dan-Dan Shen / Xiaona Tao / Huibing Zhang / Xu Yan / Ru-Jia Zhao / Junyan He / Ying Guan / Chao Zhang / Guihua ...著者: Changxiu Qu / Chunyou Mao / Peng Xiao / Qingya Shen / Ya-Ni Zhong / Fan Yang / Dan-Dan Shen / Xiaona Tao / Huibing Zhang / Xu Yan / Ru-Jia Zhao / Junyan He / Ying Guan / Chao Zhang / Guihua Hou / Peng-Ju Zhang / Guige Hou / Zijian Li / Xiao Yu / Ren-Jie Chai / You-Fei Guan / Jin-Peng Sun / Yan Zhang / 要旨: Selective modulation of the heterotrimeric G protein α S subunit-coupled prostaglandin E (PGE) receptor EP2 subtype is a promising therapeutic strategy for osteoporosis, ocular hypertension, ...Selective modulation of the heterotrimeric G protein α S subunit-coupled prostaglandin E (PGE) receptor EP2 subtype is a promising therapeutic strategy for osteoporosis, ocular hypertension, neurodegenerative diseases, and cardiovascular disorders. Here, we report the cryo-electron microscopy structure of the EP2-G complex with its endogenous agonist PGE and two synthesized agonists, taprenepag and evatanepag (CP-533536). These structures revealed distinct features of EP2 within the EP receptor family in terms of its unconventional receptor activation and G protein coupling mechanisms, including activation in the absence of a typical W "toggle switch" and coupling to G via helix 8. Moreover, inspection of the agonist-bound EP2 structures uncovered key motifs governing ligand selectivity. Our study provides important knowledge for agonist recognition and activation mechanisms of EP2 and will facilitate the rational design of drugs targeting the PGE signaling system. | ||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7cx3.cif.gz | 191.2 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7cx3.ent.gz | 151.5 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7cx3.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/cx/7cx3 ftp://data.pdbj.org/pub/pdb/validation_reports/cx/7cx3 | HTTPS FTP |
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-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-Guanine nucleotide-binding protein ... , 3種, 3分子 ABG
#2: タンパク質 | 分子量: 45683.434 Da / 分子数: 1 Mutation: S54N, G226A, E268A, N271K, K274D, R280K, T284D, I285T 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GNAS, GNAS1, GSP / Cell (発現宿主): sf9 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P63092 |
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#3: タンパク質 | 分子量: 39489.160 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 / Cell (発現宿主): sf9 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P62873 |
#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 / Cell (発現宿主): sf9 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P59768 |
-タンパク質 / 抗体 / 非ポリマー , 3種, 3分子 RN
#1: タンパク質 | 分子量: 39800.430 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: PTGER2 / Cell (発現宿主): sf9 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P43116 |
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#5: 抗体 | 分子量: 13885.439 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) synthetic construct (人工物) / 発現宿主: Escherichia coli (大腸菌) |
#6: 化合物 | ChemComp-GNO / |
-詳細
研究の焦点であるリガンドがあるか | Y |
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-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 |
-試料調製
構成要素 |
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由来(天然) |
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由来(組換発現) |
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緩衝液 | pH: 7.5 | ||||||||||||||||||||||||||||||
試料 | 濃度: 5 mg/ml / 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: Quantifoil | ||||||||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE |
-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 FIELDBright-field microscopy / 倍率(公称値): 29000 X / 倍率(補正後): 49310 X / Cs: 2.7 mm |
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: 64 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) 実像数: 4785 |
画像スキャン | 動画フレーム数/画像: 40 |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.16_3549: / 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 | ||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 3451005 | ||||||||||||||||||||||||
3次元再構成 | 解像度: 2.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 243913 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 7CFM | ||||||||||||||||||||||||
拘束条件 |
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