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基本情報
登録情報 | データベース: PDB / ID: 8h77 | ||||||
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タイトル | Hsp90-AhR-p23-XAP2 complex | ||||||
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![]() | CYTOSOLIC PROTEIN / Hsp90 / AhR / PASB doamin / complex / p23 / XAP2 | ||||||
機能・相同性 | ![]() circumferential growth involved in left ventricle morphogenesis / cellular response to 3-methylcholanthrene / GAF domain binding / ESR-mediated signaling / cytosolic aryl hydrocarbon receptor complex / glomerulus morphogenesis / regulation of protein kinase A signaling / gland development / DDX58/IFIH1-mediated induction of interferon-alpha/beta / The NLRP3 inflammasome ...circumferential growth involved in left ventricle morphogenesis / cellular response to 3-methylcholanthrene / GAF domain binding / ESR-mediated signaling / cytosolic aryl hydrocarbon receptor complex / glomerulus morphogenesis / regulation of protein kinase A signaling / gland development / DDX58/IFIH1-mediated induction of interferon-alpha/beta / The NLRP3 inflammasome / regulation of heart growth / HSF1-dependent transactivation / Phase I - Functionalization of compounds / Xenobiotics / Aryl hydrocarbon receptor signalling / HSF1 activation / kidney morphogenesis / lung saccule development / RHOBTB2 GTPase cycle / Sema3A PAK dependent Axon repulsion / prostaglandin-E synthase / prostaglandin-E synthase activity / positive regulation of growth rate / : / Attenuation phase / lymphocyte homeostasis / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / Endogenous sterols / cellular response to 2,3,7,8-tetrachlorodibenzodioxine / regulation of adaptive immune response / HSP90-CDC37 chaperone complex / Synthesis of Prostaglandins (PG) and Thromboxanes (TX) / nuclear aryl hydrocarbon receptor complex / nuclear receptor-mediated glucocorticoid signaling pathway / The role of GTSE1 in G2/M progression after G2 checkpoint / negative regulation of proteasomal protein catabolic process / cardiac left ventricle morphogenesis / aryl hydrocarbon receptor complex / prostate gland development / reproductive structure development / negative regulation of T cell mediated immune response to tumor cell / Regulation of actin dynamics for phagocytic cup formation / B-1 B cell homeostasis / dynein axonemal particle / histone methyltransferase binding / Estrogen-dependent gene expression / receptor ligand inhibitor activity / COP9 signalosome / post-embryonic hemopoiesis / ATP-dependent protein binding / camera-type eye development / positive regulation of protein localization to cell surface / glycogen biosynthetic process / vasculature development / negative regulation of systemic arterial blood pressure / telomerase holoenzyme complex / protein folding chaperone complex / blood vessel morphogenesis / prostaglandin biosynthetic process / blood circulation / protein targeting to mitochondrion / negative regulation of vasoconstriction / skin development / branching involved in blood vessel morphogenesis / telomerase holoenzyme complex assembly / blood vessel development / positive regulation of transforming growth factor beta receptor signaling pathway / E-box binding / TPR domain binding / T cell homeostasis / aryl hydrocarbon receptor binding / B cell homeostasis / dendritic growth cone / : / protein phosphatase activator activity / blood vessel remodeling / immune system process / positive regulation of RNA polymerase II transcription preinitiation complex assembly / positive regulation of cell size / regulation of protein ubiquitination / telomere maintenance via telomerase / chaperone-mediated protein complex assembly / axonal growth cone / cis-regulatory region sequence-specific DNA binding / supramolecular fiber organization / spleen development / : / DNA polymerase binding / heat shock protein binding / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / positive regulation of telomere maintenance via telomerase / Neutrophil degranulation / nitric-oxide synthase regulator activity / protein folding chaperone / xenobiotic metabolic process / B cell differentiation / cellular response to interleukin-4 / peptide binding / liver development / peptidyl-prolyl cis-trans isomerase activity 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: 3.2 Å | ||||||
![]() | Wen, Z.L. / Zhai, Y.J. / Zhu, Y. / Sun, F. | ||||||
資金援助 | 1件
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![]() | ![]() タイトル: Cryo-EM structure of the cytosolic AhR complex. 著者: Zuoling Wen / Yuebin Zhang / Beirong Zhang / Yumo Hang / Li Xu / Yangsheng Chen / Qunhui Xie / Qun Zhao / Lihua Zhang / Guohui Li / Bin Zhao / Fei Sun / Yujia Zhai / Yun Zhu / ![]() 要旨: Aryl hydrocarbon receptor (AhR) is an important ligand-activated transcription factor involved in the regulation of various important physiological functions. Here, we report the cryo-EM structures ...Aryl hydrocarbon receptor (AhR) is an important ligand-activated transcription factor involved in the regulation of various important physiological functions. Here, we report the cryo-EM structures of the Hsp90-AhR-p23 complex with or without bound XAP2, where the structure of the mouse AhR PAS-B domain is resolved. A highly conserved bridge motif of AhR is responsible for the interaction with the Hsp90 dimeric lumen. The ligand-free AhR PAS-B domain is attached to the Hsp90 dimer and is stabilized in the complex with bound XAP2. In addition, the DE-loop and a group of conserved pocket inner residues in the AhR PAS-B domain are found to be important for ligand binding. These results reveal the structural basis of the biological functions of AhR. Moreover, the protein purification method presented here allows the isolation of stable mouse AhR protein, which could be used to develop high-sensitivity biosensors for environmental pollutant detection. | ||||||
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-関連構造データ
関連構造データ | ![]() 34519MC ![]() 7y04C 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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集合体
登録構造単位 | ![]()
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要素
-タンパク質 , 4種, 6分子 ABCDEF
#1: タンパク質 | 分子量: 86590.688 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: P11499 #2: タンパク質 | 分子量: 20133.994 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: Q9R0Q7, prostaglandin-E synthase #3: タンパク質 | | 分子量: 50507.441 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: P30561 #4: タンパク質 | | 分子量: 38744.102 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: O08915 |
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-非ポリマー , 2種, 4分子 


#5: 化合物 | #6: 化合物 | |
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-詳細
研究の焦点であるリガンドがあるか | N |
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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 |
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由来(組換発現) |
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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 |
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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): 1800 nm / 最小 デフォーカス(公称値): 1200 nm |
撮影 | 電子線照射量: 60 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.18.2_3874: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 266830 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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