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基本情報
登録情報 | データベース: PDB / ID: 7znn | ||||||
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タイトル | Cryo-EM structure of RCMV-E E27 bound to human DDB1 (deltaBPB) and full-length rat STAT2 | ||||||
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![]() | VIRUS / Interferon / ubiquitin-proteasome system / Cullin-RING ubiquitin ligases (CRL) / DDB1 / DCAFs / viral DCAF (vDCAF) / cytomegalovirus / STAT2 / IRF9 | ||||||
機能・相同性 | ![]() Interleukin-20 family signaling / Interferon alpha/beta signaling / Regulation of IFNA/IFNB signaling / ISGF3 complex / positive regulation by virus of viral protein levels in host cell / epigenetic programming in the zygotic pronuclei / spindle assembly involved in female meiosis / Cul4-RING E3 ubiquitin ligase complex / UV-damage excision repair / biological process involved in interaction with symbiont ...Interleukin-20 family signaling / Interferon alpha/beta signaling / Regulation of IFNA/IFNB signaling / ISGF3 complex / positive regulation by virus of viral protein levels in host cell / epigenetic programming in the zygotic pronuclei / spindle assembly involved in female meiosis / Cul4-RING E3 ubiquitin ligase complex / UV-damage excision repair / biological process involved in interaction with symbiont / WD40-repeat domain binding / regulation of mitotic cell cycle phase transition / Cul4A-RING E3 ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / negative regulation of type I interferon-mediated signaling pathway / type I interferon-mediated signaling pathway / regulation of mitochondrial fission / negative regulation of reproductive process / negative regulation of developmental process / ubiquitin-like protein ligase binding / cell surface receptor signaling pathway via JAK-STAT / cullin family protein binding / viral release from host cell / ectopic germ cell programmed cell death / proteasomal protein catabolic process / positive regulation of viral genome replication / positive regulation of gluconeogenesis / nucleotide-excision repair / Recognition of DNA damage by PCNA-containing replication complex / regulation of protein phosphorylation / DNA Damage Recognition in GG-NER / regulation of circadian rhythm / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / Wnt signaling pathway / defense response / response to peptide hormone / cytokine-mediated signaling pathway / Formation of Incision Complex in GG-NER / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / positive regulation of protein catabolic process / cellular response to UV / rhythmic process / protein-macromolecule adaptor activity / Neddylation / site of double-strand break / regulation of cell population proliferation / ubiquitin-dependent protein catabolic process / proteasome-mediated ubiquitin-dependent protein catabolic process / defense response to virus / chromosome, telomeric region / damaged DNA binding / DNA-binding transcription factor activity, RNA polymerase II-specific / protein ubiquitination / RNA polymerase II cis-regulatory region sequence-specific DNA binding / DNA repair / apoptotic process / DNA damage response / protein-containing complex binding / nucleolus / regulation of transcription by RNA polymerase II / negative regulation of apoptotic process / positive regulation of transcription by RNA polymerase II / protein-containing complex / DNA binding / extracellular space / extracellular exosome / nucleoplasm / identical protein binding / nucleus / plasma membrane / cytoplasm / cytosol 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: 4.8 Å | ||||||
![]() | Lauer, S. / Spahn, C.M.T. / Schwefel, D. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural mechanism of CRL4-instructed STAT2 degradation via a novel cytomegaloviral DCAF receptor. 著者: Vu Thuy Khanh Le-Trilling / Sofia Banchenko / Darius Paydar / Pia Madeleine Leipe / Lukas Binting / Simon Lauer / Andrea Graziadei / Robin Klingen / Christine Gotthold / Jörg Bürger / Thilo ...著者: Vu Thuy Khanh Le-Trilling / Sofia Banchenko / Darius Paydar / Pia Madeleine Leipe / Lukas Binting / Simon Lauer / Andrea Graziadei / Robin Klingen / Christine Gotthold / Jörg Bürger / Thilo Bracht / Barbara Sitek / Robert Jan Lebbink / Anna Malyshkina / Thorsten Mielke / Juri Rappsilber / Christian Mt Spahn / Sebastian Voigt / Mirko Trilling / David Schwefel / ![]() ![]() ![]() ![]() 要旨: Human cytomegalovirus (CMV) is a ubiquitously distributed pathogen whose rodent counterparts such as mouse and rat CMV serve as common infection models. Here, we conducted global proteome profiling ...Human cytomegalovirus (CMV) is a ubiquitously distributed pathogen whose rodent counterparts such as mouse and rat CMV serve as common infection models. Here, we conducted global proteome profiling of rat CMV-infected cells and uncovered a pronounced loss of the transcription factor STAT2, which is crucial for antiviral interferon signalling. Via deletion mutagenesis, we found that the viral protein E27 is required for CMV-induced STAT2 depletion. Cellular and in vitro analyses showed that E27 exploits host-cell Cullin4-RING ubiquitin ligase (CRL4) complexes to induce poly-ubiquitylation and proteasomal degradation of STAT2. Cryo-electron microscopy revealed how E27 mimics molecular surface properties of cellular CRL4 substrate receptors called DCAFs (DDB1- and Cullin4-associated factors), thereby displacing them from the catalytic core of CRL4. Moreover, structural analyses showed that E27 recruits STAT2 through a bipartite binding interface, which partially overlaps with the IRF9 binding site. Structure-based mutations in M27, the murine CMV homologue of E27, impair the interferon-suppressing capacity and virus replication in mouse models, supporting the conserved importance of DCAF mimicry for CMV immune evasion. | ||||||
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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 | ![]() | 347.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 267.8 KB | 表示 | ![]() |
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その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.2 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.2 MB | 表示 | |
XML形式データ | ![]() | 55.4 KB | 表示 | |
CIF形式データ | ![]() | 82.4 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 | ![]() 14812MC ![]() 7zn7C C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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: 93671.461 Da / 分子数: 1 変異: Residues 396-705 have been replaced by a GNGNSG-linker 由来タイプ: 組換発現 詳細: Residues 396-705 from the reference database entry UNP Q16531 have been replaced by a GNGNSG-linker,Residues 396-705 from the reference database entry UNP Q16531 have been replaced by a GNGNSG-linker 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: Q16531 |
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#2: タンパク質 | 分子量: 76341.898 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 株: isolate England / 遺伝子: E27a, B27a / プラスミド: pHisSUMO / 発現宿主: ![]() ![]() |
#3: タンパク質 | 分子量: 97172.953 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
#4: 化合物 | ChemComp-ZN / |
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 |
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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: 7.8 | |||||||||||||||||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.13 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | |||||||||||||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 99 % / 凍結前の試料温度: 277.15 K / 詳細: 45 seconds adsorption 2 seconds blot |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Tecnai Polara / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI POLARA 300 |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 31000 X / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 500 nm / Cs: 2 mm |
撮影 | 平均露光時間: 10 sec. / 電子線照射量: 62 e/Å2 / 検出モード: SUPER-RESOLUTION フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 撮影したグリッド数: 4 / 実像数: 8069 |
画像スキャン | 動画フレーム数/画像: 50 / 利用したフレーム数/画像: 1-50 |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158: / 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 AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 974291 | ||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 4.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 31976 / アルゴリズム: FOURIER SPACE / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||
原子モデル構築 | B value: 112 / プロトコル: RIGID BODY FIT / 空間: REAL Target criteria: Fast gradient-driven minimization of combined map and restraints target | ||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 6ZUE Accession code: 6ZUE / Source name: PDB / タイプ: experimental model | ||||||||||||||||||||||||||||||||||||
拘束条件 |
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