+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8xvk | ||||||
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タイトル | Cryo-EM structure of ETAR bound with Ambrisentan | ||||||
要素 |
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キーワード | SIGNALING PROTEIN / GPCR / COMPLEX / ETA / AMBRISENTAN | ||||||
機能・相同性 | 機能・相同性情報 regulation of protein localization to cell leading edge / endothelin receptor activity / cellular response to human chorionic gonadotropin stimulus / meiotic cell cycle process involved in oocyte maturation / semaphorin-plexin signaling pathway involved in axon guidance / neural crest cell fate commitment / atrial cardiac muscle tissue development / glomerular endothelium development / sympathetic neuron axon guidance / vascular associated smooth muscle cell development ...regulation of protein localization to cell leading edge / endothelin receptor activity / cellular response to human chorionic gonadotropin stimulus / meiotic cell cycle process involved in oocyte maturation / semaphorin-plexin signaling pathway involved in axon guidance / neural crest cell fate commitment / atrial cardiac muscle tissue development / glomerular endothelium development / sympathetic neuron axon guidance / vascular associated smooth muscle cell development / noradrenergic neuron differentiation / cardiac chamber formation / heparin metabolic process / developmental pigmentation / pharyngeal arch artery morphogenesis / regulation of D-glucose transmembrane transport / endothelin receptor signaling pathway involved in heart process / cardiac neural crest cell migration involved in outflow tract morphogenesis / endothelin receptor signaling pathway / response to acetylcholine / sodium ion homeostasis / podocyte differentiation / podocyte apoptotic process / renal sodium ion absorption / embryonic skeletal system development / left ventricular cardiac muscle tissue morphogenesis / artery smooth muscle contraction / mesenchymal cell apoptotic process / glomerular filtration / protein transmembrane transport / enteric nervous system development / axonogenesis involved in innervation / positive regulation of cation channel activity / cellular response to follicle-stimulating hormone stimulus / cranial skeletal system development / cellular response to luteinizing hormone stimulus / renal albumin absorption / respiratory gaseous exchange by respiratory system / sympathetic nervous system development / phosphatidylinositol phospholipase C activity / norepinephrine metabolic process / vasoconstriction / embryonic heart tube development / axon extension / establishment of endothelial barrier / aorta development / middle ear morphogenesis / cellulase / neuromuscular process / beta-glucosidase activity / cellulase activity / neuron remodeling / branching involved in blood vessel morphogenesis / face development / thyroid gland development / smooth muscle contraction / blood vessel remodeling / canonical Wnt signaling pathway / cellulose catabolic process / activation of adenylate cyclase activity / protein kinase A signaling / response to amphetamine / regulation of heart rate / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Peptide ligand-binding receptors / mitochondrion organization / calcium ion transmembrane transport / electron transport chain / regulation of blood pressure / response to wounding / intracellular calcium ion homeostasis / mitotic cell cycle / phospholipase C-activating G protein-coupled receptor signaling pathway / cellular response to oxidative stress / positive regulation of cytosolic calcium ion concentration / gene expression / G alpha (q) signalling events / positive regulation of canonical NF-kappaB signal transduction / in utero embryonic development / cell population proliferation / periplasmic space / electron transfer activity / response to hypoxia / iron ion binding / G protein-coupled receptor signaling pathway / heme binding / cell surface / signal transduction / extracellular region / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) synthetic construct (人工物) Acetivibrio thermocellus ATCC 27405 (バクテリア) Escherichia coli (大腸菌) | ||||||
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: 3.21 Å | ||||||
データ登録者 | Hou, J.Y. / Liu, S.H. / Wu, L.J. / Liu, Z.J. / Hua, T. | ||||||
資金援助 | 中国, 1件
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引用 | ジャーナル: Cell Discov / 年: 2024 タイトル: Structural basis of antagonist selectivity in endothelin receptors. 著者: Junyi Hou / Shenhui Liu / Xiaodan Zhang / Guowei Tu / Lijie Wu / Yijie Zhang / Hao Yang / Xiangcheng Li / Junlin Liu / Longquan Jiang / Qiwen Tan / Fang Bai / Zhijie Liu / Changhong Miao / Tian Hua / Zhe Luo / 要旨: Endothelins and their receptors, ET and ET, play vital roles in maintaining vascular homeostasis. Therapeutically targeting endothelin receptors, particularly through ET antagonists, has shown ...Endothelins and their receptors, ET and ET, play vital roles in maintaining vascular homeostasis. Therapeutically targeting endothelin receptors, particularly through ET antagonists, has shown efficacy in treating pulmonary arterial hypertension (PAH) and other cardiovascular- and renal-related diseases. Here we present cryo-electron microscopy structures of ET in complex with two PAH drugs, macitentan and ambrisentan, along with zibotentan, a selective ET antagonist, respectively. Notably, a specialized anti-ET antibody facilitated the structural elucidation. These structures, together with the active-state structures of ET-1-bound ET and ET, and the agonist BQ3020-bound ET, in complex with G, unveil the molecular basis of agonist/antagonist binding modes in endothelin receptors. Key residues that confer antagonist selectivity to endothelin receptors were identified along with the activation mechanism of ET. Furthermore, our results suggest that ECL2 in ET can serve as an epitope for antibody-mediated receptor antagonism. Collectively, these insights establish a robust theoretical framework for the rational design of small-molecule drugs and antibodies with selective activity against endothelin receptors. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8xvk.cif.gz | 209.8 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8xvk.ent.gz | 表示 | PDB形式 | |
PDBx/mmJSON形式 | 8xvk.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 | 8xvk_validation.pdf.gz | 1 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8xvk_full_validation.pdf.gz | 1.1 MB | 表示 | |
XML形式データ | 8xvk_validation.xml.gz | 42 KB | 表示 | |
CIF形式データ | 8xvk_validation.cif.gz | 61.6 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/xv/8xvk ftp://data.pdbj.org/pub/pdb/validation_reports/xv/8xvk | HTTPS FTP |
-関連構造データ
関連構造データ | 38707MC 8xveC 8xvhC 8xviC 8xvjC 8xvlC 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 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
#1: 抗体 | 分子量: 28577.918 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: Mammalian expression vector Flag-MCS-pcDNA3.1 (その他) |
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#2: 抗体 | 分子量: 15071.431 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) |
#3: 抗体 | 分子量: 25575.604 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: Mammalian expression vector Flag-MCS-pcDNA3.1 (その他) |
#4: タンパク質 | 分子量: 89090.867 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Acetivibrio thermocellus ATCC 27405 (バクテリア), (組換発現) Homo sapiens (ヒト), (組換発現) Escherichia coli (大腸菌) 遺伝子: celH, Cthe_1472, EDNRA, ETA, ETRA, cybC 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P16218, UniProt: P25101, UniProt: P0ABE7, cellulase |
#5: 化合物 | ChemComp-A1D5J / ( 分子量: 378.421 Da / 分子数: 1 / 由来タイプ: 合成 / 式: C22H22N2O4 |
研究の焦点であるリガンドがあるか | 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 |
-試料調製
構成要素 | 名称: Complex of Endothelin receptor type A with ambrisentan タイプ: COMPLEX / Entity ID: #1-#4 / 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: Spodoptera frugiperda (ツマジロクサヨトウ) |
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 |
-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 FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 60 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
-解析
CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
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3次元再構成 | 解像度: 3.21 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 568027 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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