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基本情報
登録情報 | データベース: PDB / ID: 7zub | ||||||||||||
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タイトル | Cryo-EM structure of the indirubin-bound Hsp90-XAP2-AHR complex | ||||||||||||
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![]() | GENE REGULATION / complex / nuclear receptor / chemical pollutants / detoxification / cancer | ||||||||||||
機能・相同性 | ![]() GAF domain binding / cytosolic aryl hydrocarbon receptor complex / regulation of B cell proliferation / negative regulation of T cell mediated immune response to tumor cell / cellular response to molecule of bacterial origin / : / regulation of adaptive immune response / cellular response to 2,3,7,8-tetrachlorodibenzodioxine / nuclear aryl hydrocarbon receptor complex / positive regulation of cyclin-dependent protein kinase activity ...GAF domain binding / cytosolic aryl hydrocarbon receptor complex / regulation of B cell proliferation / negative regulation of T cell mediated immune response to tumor cell / cellular response to molecule of bacterial origin / : / regulation of adaptive immune response / cellular response to 2,3,7,8-tetrachlorodibenzodioxine / nuclear aryl hydrocarbon receptor complex / positive regulation of cyclin-dependent protein kinase activity / HSP90-CDC37 chaperone complex / negative regulation of proteasomal protein catabolic process / Aryl hydrocarbon receptor signalling / aryl hydrocarbon receptor complex / dynein axonemal particle / histone methyltransferase binding / regulation of protein kinase A signaling / Xenobiotics / protein targeting to mitochondrion / positive regulation of protein localization to cell surface / ATP-dependent protein binding / protein kinase regulator activity / Phase I - Functionalization of compounds / protein maturation by protein folding / negative regulation of protein metabolic process / positive regulation of tau-protein kinase activity / telomerase holoenzyme complex assembly / Respiratory syncytial virus genome replication / Uptake and function of diphtheria toxin / TPR domain binding / blood vessel development / positive regulation of transforming growth factor beta receptor signaling pathway / Assembly and release of respiratory syncytial virus (RSV) virions / E-box binding / dendritic growth cone / positive regulation of phosphoprotein phosphatase activity / aryl hydrocarbon receptor binding / TFIID-class transcription factor complex binding / : / Sema3A PAK dependent Axon repulsion / The NLRP3 inflammasome / regulation of protein ubiquitination / HSF1-dependent transactivation / response to unfolded protein / telomere maintenance via telomerase / chaperone-mediated protein complex assembly / HSF1 activation / Attenuation phase / cellular response to interleukin-4 / Endogenous sterols / cis-regulatory region sequence-specific DNA binding / RHOBTB2 GTPase cycle / Purinergic signaling in leishmaniasis infection / axonal growth cone / DNA polymerase binding / supramolecular fiber organization / cellular response to cAMP / cellular response to forskolin / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / heat shock protein binding / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / nitric-oxide synthase regulator activity / TBP-class protein binding / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / xenobiotic metabolic process / cAMP-mediated signaling / ESR-mediated signaling / peptidyl-prolyl cis-trans isomerase activity / positive regulation of cell differentiation / ATP-dependent protein folding chaperone / peptide binding / circadian regulation of gene expression / Hsp90 protein binding / DDX58/IFIH1-mediated induction of interferon-alpha/beta / tau protein binding / placenta development / PPARA activates gene expression / response to toxic substance / Regulation of actin dynamics for phagocytic cup formation / kinase binding / transcription coactivator binding / histone deacetylase binding / negative regulation of inflammatory response / Chaperone Mediated Autophagy / cell cycle / The role of GTSE1 in G2/M progression after G2 checkpoint / nuclear receptor activity / regulation of protein localization / positive regulation of nitric oxide biosynthetic process / double-stranded RNA binding / disordered domain specific binding / sequence-specific double-stranded DNA binding / unfolded protein binding / melanosome / protein folding / MHC class II protein complex binding / cellular response to heat / regulation of gene expression / secretory granule lumen / Estrogen-dependent gene expression 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: 2.85 Å | ||||||||||||
![]() | Gruszczyk, J. / Savva, C.G. / Lai-Kee-Him, J. / Bous, J. / Ancelin, A. / Kwong, H.S. / Grandvuillemin, L. / Bourguet, W. | ||||||||||||
資金援助 | European Union, ![]()
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![]() | ![]() タイトル: Cryo-EM structure of the agonist-bound Hsp90-XAP2-AHR cytosolic complex. 著者: Jakub Gruszczyk / Loïc Grandvuillemin / Josephine Lai-Kee-Him / Matteo Paloni / Christos G Savva / Pierre Germain / Marina Grimaldi / Abdelhay Boulahtouf / Hok-Sau Kwong / Julien Bous / ...著者: Jakub Gruszczyk / Loïc Grandvuillemin / Josephine Lai-Kee-Him / Matteo Paloni / Christos G Savva / Pierre Germain / Marina Grimaldi / Abdelhay Boulahtouf / Hok-Sau Kwong / Julien Bous / Aurélie Ancelin / Cherine Bechara / Alessandro Barducci / Patrick Balaguer / William Bourguet / ![]() ![]() ![]() 要旨: The aryl hydrocarbon receptor (AHR) is a ligand-dependent transcription factor that mediates a broad spectrum of (patho)physiological processes in response to numerous substances including ...The aryl hydrocarbon receptor (AHR) is a ligand-dependent transcription factor that mediates a broad spectrum of (patho)physiological processes in response to numerous substances including pollutants, natural products and metabolites. However, the scarcity of structural data precludes understanding of how AHR is activated by such diverse compounds. Our 2.85 Å structure of the human indirubin-bound AHR complex with the chaperone Hsp90 and the co-chaperone XAP2, reported herein, reveals a closed conformation Hsp90 dimer with AHR threaded through its lumen and XAP2 serving as a brace. Importantly, we disclose the long-awaited structure of the AHR PAS-B domain revealing a unique organisation of the ligand-binding pocket and the structural determinants of ligand-binding specificity and promiscuity of the receptor. By providing structural details of the molecular initiating event leading to AHR activation, our study rationalises almost forty years of biochemical data and provides a framework for future mechanistic studies and structure-guided drug design. | ||||||||||||
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 | ![]() | 674 KB | 表示 | ![]() |
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PDB形式 | ![]() | 555.2 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 | ![]() | 1.3 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.3 MB | 表示 | |
XML形式データ | ![]() | 59.1 KB | 表示 | |
CIF形式データ | ![]() | 89.8 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 | ![]() 14971MC 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 , 3種, 4分子 ABCD
#1: タンパク質 | 分子量: 84213.141 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P08238 #2: タンパク質 | | 分子量: 37691.047 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: O00170 #3: タンパク質 | | 分子量: 49767.879 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: P35869 |
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-非ポリマー , 4種, 7分子 ![](data/chem/img/ADP.gif)
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#4: 化合物 | #5: 化合物 | #6: 化合物 | #7: 化合物 | ChemComp-JY6 / ( | |
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-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 |
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試料調製
構成要素 | 名称: Hsp90-XAP2-AHR complex / タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT | |||||||||||||||||||||||||||||||||||
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分子量 | 値: 0.256 MDa / 実験値: YES | |||||||||||||||||||||||||||||||||||
由来(天然) | 生物種: ![]() | |||||||||||||||||||||||||||||||||||
由来(組換発現) | 生物種: ![]() ![]() | |||||||||||||||||||||||||||||||||||
緩衝液 | pH: 7 | |||||||||||||||||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.2 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 / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: C-flat-1.2/1.3 | |||||||||||||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 295 K |
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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 / 倍率(公称値): 81000 X / 最大 デフォーカス(公称値): 1500 nm / 最小 デフォーカス(公称値): 800 nm / Cs: 2.7 mm / C2レンズ絞り径: 50 µm / アライメント法: COMA FREE |
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 | 平均露光時間: 3 sec. / 電子線照射量: 1.1 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 1 / 実像数: 9300 |
電子光学装置 | エネルギーフィルター名称: GIF Bioquantum / エネルギーフィルタースリット幅: 20 eV |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.20_4459: / 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 ONLY | ||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 11546649 | ||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 2.85 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 678724 / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL | ||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 |
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