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基本情報
登録情報 | データベース: PDB / ID: 8xvi | ||||||
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タイトル | Cryo-EM structure of ETAR bound with Endothelin1 | ||||||
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![]() | SIGNALING PROTEIN / GPCR / COMPLEX / ETA / ENDOTHELIN-1 | ||||||
機能・相同性 | ![]() regulation of protein localization to cell leading edge / : / endothelin A receptor binding / phospholipase D-activating G protein-coupled receptor signaling pathway / rhythmic excitation / negative regulation of phospholipase C/protein kinase C signal transduction / endothelin receptor activity / peptide hormone secretion / endothelin B receptor binding / cellular response to human chorionic gonadotropin stimulus ...regulation of protein localization to cell leading edge / : / endothelin A receptor binding / phospholipase D-activating G protein-coupled receptor signaling pathway / rhythmic excitation / negative regulation of phospholipase C/protein kinase C signal transduction / endothelin receptor activity / peptide hormone secretion / endothelin B receptor binding / cellular response to human chorionic gonadotropin stimulus / meiotic cell cycle process involved in oocyte maturation / semaphorin-plexin signaling pathway involved in axon guidance / positive regulation of artery morphogenesis / cellular response to mineralocorticoid stimulus / histamine secretion / neural crest cell fate commitment / vein smooth muscle contraction / glomerular endothelium development / response to prostaglandin F / sympathetic neuron axon guidance / positive regulation of sarcomere organization / noradrenergic neuron differentiation / atrial cardiac muscle tissue development / vascular associated smooth muscle cell development / leukocyte activation / maternal process involved in parturition / positive regulation of chemokine-mediated signaling pathway / cardiac chamber formation / body fluid secretion / rough endoplasmic reticulum lumen / heparin proteoglycan metabolic process / positive regulation of renal sodium excretion / : / pharyngeal arch artery morphogenesis / regulation of D-glucose transmembrane transport / endothelin receptor signaling pathway involved in heart process / positive regulation of odontogenesis / epithelial fluid transport / cardiac neural crest cell migration involved in outflow tract morphogenesis / negative regulation of hormone secretion / response to leptin / Weibel-Palade body / endothelin receptor signaling pathway / response to acetylcholine / response to ozone / podocyte differentiation / podocyte apoptotic process / developmental pigmentation / left ventricular cardiac muscle tissue morphogenesis / positive regulation of cell growth involved in cardiac muscle cell development / renal sodium ion absorption / embryonic skeletal system development / sodium ion homeostasis / enteric nervous system development / mesenchymal cell apoptotic process / positive regulation of cation channel activity / axonogenesis involved in innervation / glomerular filtration / protein transmembrane transport / artery smooth muscle contraction / cellular response to follicle-stimulating hormone stimulus / cellular response to luteinizing hormone stimulus / cranial skeletal system development / renal albumin absorption / positive regulation of prostaglandin secretion / respiratory gaseous exchange by respiratory system / regulation of pH / basal part of cell / positive regulation of smooth muscle contraction / sympathetic nervous system development / response to salt / positive regulation of hormone secretion / phosphatidylinositol-4,5-bisphosphate phospholipase C activity / norepinephrine metabolic process / positive regulation of urine volume / regulation of systemic arterial blood pressure by endothelin / cellular response to toxic substance / vasoconstriction / embryonic heart tube development / dorsal/ventral pattern formation / axon extension / establishment of endothelial barrier / cellulase / signal transduction involved in regulation of gene expression / positive regulation of neutrophil chemotaxis / prostaglandin biosynthetic process / superoxide anion generation / cellular response to glucocorticoid stimulus / aorta development / cartilage development / middle ear morphogenesis / negative regulation of protein metabolic process / cellulase activity / cellular response to fatty acid / nitric oxide transport / neuromuscular process / neuron remodeling / beta-glucosidase activity / branching involved in blood vessel morphogenesis / positive regulation of cardiac muscle hypertrophy 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: 3.32 Å | ||||||
![]() | Hou, J.Y. / Liu, S.H. / Wu, L.J. / Liu, Z.J. / Hua, T. | ||||||
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![]() | ![]() 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. | ||||||
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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 | ![]() | 236.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 179 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 407.9 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 422.3 KB | 表示 | |
XML形式データ | ![]() | 22.4 KB | 表示 | |
CIF形式データ | ![]() | 34.3 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 | ![]() 38705MC ![]() 8xveC ![]() 8xvhC ![]() 8xvjC ![]() 8xvkC ![]() 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 ( |
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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
-タンパク質 , 2種, 2分子 AR
#1: タンパク質 | 分子量: 30464.314 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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#5: タンパク質 | 分子量: 77879.422 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: celH, Cthe_1472, EDNRA, ETA, ETRA 発現宿主: ![]() ![]() 参照: UniProt: P16218, UniProt: P25101, cellulase |
-Guanine nucleotide-binding protein ... , 2種, 2分子 BG
#2: タンパク質 | 分子量: 38045.629 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 |
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#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・ペプチド , 2種, 2分子 NT
#4: 抗体 | 分子量: 17057.271 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
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#6: タンパク質・ペプチド | 分子量: 2497.951 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-詳細
Has protein modification | 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 |
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試料調製
構成要素 | 名称: Complex of protein Gs/q with ETA and Endothelin-1 / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.4 |
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 |
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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: FEI TITAN 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): 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) |
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解析
CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
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3次元再構成 | 解像度: 3.32 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 114666 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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