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基本情報
登録情報 | データベース: PDB / ID: 8u1l | |||||||||||||||||||||||||||||||||||||||||||||
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タイトル | Cryo-EM structure of the RAF1-HSP90-CDC37 complex in the closed state | |||||||||||||||||||||||||||||||||||||||||||||
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![]() | SIGNALING PROTEIN/CHAPERONE / CRAF / RAF1 / HSP90 / CDC37 / SIGNALING PROTEIN-CHAPERONE complex | |||||||||||||||||||||||||||||||||||||||||||||
機能・相同性 | ![]() regulation of type II interferon-mediated signaling pathway / HSP90-CDC37 chaperone complex / death-inducing signaling complex assembly / intermediate filament cytoskeleton organization / type B pancreatic cell proliferation / regulation of Rho protein signal transduction / positive regulation of type 2 mitophagy / SHOC2 M1731 mutant abolishes MRAS complex function / Gain-of-function MRAS complexes activate RAF signaling / Rap1 signalling ...regulation of type II interferon-mediated signaling pathway / HSP90-CDC37 chaperone complex / death-inducing signaling complex assembly / intermediate filament cytoskeleton organization / type B pancreatic cell proliferation / regulation of Rho protein signal transduction / positive regulation of type 2 mitophagy / SHOC2 M1731 mutant abolishes MRAS complex function / Gain-of-function MRAS complexes activate RAF signaling / Rap1 signalling / protein kinase regulator activity / insulin secretion involved in cellular response to glucose stimulus / protein folding chaperone complex / regulation of cyclin-dependent protein serine/threonine kinase activity / Negative feedback regulation of MAPK pathway / IFNG signaling activates MAPKs / post-transcriptional regulation of gene expression / GP1b-IX-V activation signalling / ERBB2-ERBB3 signaling pathway / Drug-mediated inhibition of ERBB2 signaling / Resistance of ERBB2 KD mutants to trastuzumab / Resistance of ERBB2 KD mutants to sapitinib / Resistance of ERBB2 KD mutants to tesevatinib / Resistance of ERBB2 KD mutants to neratinib / Resistance of ERBB2 KD mutants to osimertinib / Resistance of ERBB2 KD mutants to afatinib / Resistance of ERBB2 KD mutants to AEE788 / Resistance of ERBB2 KD mutants to lapatinib / Drug resistance in ERBB2 TMD/JMD mutants / regulation of type I interferon-mediated signaling pathway / face development / pseudopodium / neurotrophin TRK receptor signaling pathway / regulation of cell differentiation / thyroid gland development / somatic stem cell population maintenance / extrinsic apoptotic signaling pathway via death domain receptors / MAP kinase kinase kinase activity / type II interferon-mediated signaling pathway / negative regulation of protein-containing complex assembly / protein targeting / Schwann cell development / RHOBTB2 GTPase cycle / negative regulation of extrinsic apoptotic signaling pathway via death domain receptors / activation of adenylate cyclase activity / positive regulation of peptidyl-serine phosphorylation / heat shock protein binding / response to muscle stretch / Signaling by ERBB2 / myelination / CD209 (DC-SIGN) signaling / insulin-like growth factor receptor signaling pathway / Constitutive Signaling by Overexpressed ERBB2 / thymus development / Hsp90 protein binding / RAF activation / ATP-dependent protein folding chaperone / wound healing / Signaling by ERBB2 TMD/JMD mutants / Signaling by high-kinase activity BRAF mutants / Constitutive Signaling by EGFRvIII / MAP2K and MAPK activation / Signaling by ERBB2 ECD mutants / Signaling by ERBB2 KD Mutants / Regulation of necroptotic cell death / Stimuli-sensing channels / kinase binding / Downregulation of ERBB2 signaling / Signaling by RAF1 mutants / Negative regulation of MAPK pathway / Signaling by moderate kinase activity BRAF mutants / Paradoxical activation of RAF signaling by kinase inactive BRAF / Signaling downstream of RAS mutants / Signaling by BRAF and RAF1 fusions / MAPK cascade / unfolded protein binding / insulin receptor signaling pathway / protein folding / Constitutive Signaling by Ligand-Responsive EGFR Cancer Variants / protein-folding chaperone binding / scaffold protein binding / regulation of apoptotic process / mitochondrial outer membrane / eukaryotic translation initiation factor 2alpha kinase activity / 3-phosphoinositide-dependent protein kinase activity / DNA-dependent protein kinase activity / ribosomal protein S6 kinase activity / histone H3S10 kinase activity / histone H2AXS139 kinase activity / histone H3S28 kinase activity / histone H4S1 kinase activity / histone H2BS14 kinase activity / histone H3T3 kinase activity / histone H2AS121 kinase activity / Rho-dependent protein serine/threonine kinase activity / histone H2BS36 kinase activity / histone H3S57 kinase activity / histone H2AT120 kinase activity / AMP-activated protein kinase activity / histone H2AS1 kinase 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: 3.7 Å | |||||||||||||||||||||||||||||||||||||||||||||
![]() | Finci, L.I. / Simanshu, D.K. | |||||||||||||||||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural dynamics of RAF1-HSP90-CDC37 and HSP90 complexes reveal asymmetric client interactions and key structural elements. 著者: Lorenzo I Finci / Mayukh Chakrabarti / Gulcin Gulten / Joseph Finney / Carissa Grose / Tara Fox / Renbin Yang / Dwight V Nissley / Frank McCormick / Dominic Esposito / Trent E Balius / Dhirendra K Simanshu / ![]() 要旨: RAF kinases are integral to the RAS-MAPK signaling pathway, and proper RAF1 folding relies on its interaction with the chaperone HSP90 and the cochaperone CDC37. Understanding the intricate molecular ...RAF kinases are integral to the RAS-MAPK signaling pathway, and proper RAF1 folding relies on its interaction with the chaperone HSP90 and the cochaperone CDC37. Understanding the intricate molecular interactions governing RAF1 folding is crucial for comprehending this process. Here, we present a cryo-EM structure of the closed-state RAF1-HSP90-CDC37 complex, where the C-lobe of the RAF1 kinase domain binds to one side of the HSP90 dimer, and an unfolded N-lobe segment of the RAF1 kinase domain threads through the center of the HSP90 dimer. CDC37 binds to the kinase C-lobe, mimicking the N-lobe with its HxNI motif. We also describe structures of HSP90 dimers without RAF1 and CDC37, displaying only N-terminal and middle domains, which we term the semi-open state. Employing 1 μs atomistic simulations, energetic decomposition, and comparative structural analysis, we elucidate the dynamics and interactions within these complexes. Our quantitative analysis reveals that CDC37 bridges the HSP90-RAF1 interaction, RAF1 binds HSP90 asymmetrically, and that HSP90 structural elements engage RAF1's unfolded region. Additionally, N- and C-terminal interactions stabilize HSP90 dimers, and molecular interactions in HSP90 dimers rearrange between the closed and semi-open states. Our findings provide valuable insight into the contributions of HSP90 and CDC37 in mediating client folding. | |||||||||||||||||||||||||||||||||||||||||||||
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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 | ![]() | 304 KB | 表示 | ![]() |
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PDB形式 | ![]() | 233.8 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 41816MC ![]() 8u1mC ![]() 8u1nC 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
#1: タンパク質 | 分子量: 83322.133 Da / 分子数: 2 / Mutation: 0 / 由来タイプ: 天然 由来: (天然) ![]() 参照: UniProt: A0A7E5VSK5 #2: タンパク質 | | 分子量: 74021.445 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #3: タンパク質 | | 分子量: 44622.363 Da / 分子数: 1 / Mutation: 0 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #4: 化合物 | #5: 化合物 | 研究の焦点であるリガンドがあるか | N | 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 |
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分子量 |
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由来(天然) |
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由来(組換発現) | 生物種: ![]() | |||||||||||||||||||||||||||||||||||
緩衝液 | pH: 7.3 | |||||||||||||||||||||||||||||||||||
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: COPPER / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 | |||||||||||||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 詳細: Grids were blotted for 4.5 seconds before plunging |
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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): 3000 nm / 最小 デフォーカス(公称値): 1500 nm |
撮影 | 電子線照射量: 50 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) |
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解析
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: 1877778 | ||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 97569 / 対称性のタイプ: POINT |