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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 8x77 | ||||||
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タイトル | Enterovirus proteinase with host factor | ||||||
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![]() | CELL INVASION / host protein / VIRAL PROTEIN | ||||||
機能・相同性 | ![]() peptidyl-histidine methylation / regulation of uterine smooth muscle contraction / protein-histidine N-methyltransferase / protein-L-histidine N-tele-methyltransferase activity / actin modification / histone H3K36 methyltransferase activity / histone H3K4 methyltransferase activity / positive regulation of muscle cell differentiation / viral process / cysteine-type peptidase activity ...peptidyl-histidine methylation / regulation of uterine smooth muscle contraction / protein-histidine N-methyltransferase / protein-L-histidine N-tele-methyltransferase activity / actin modification / histone H3K36 methyltransferase activity / histone H3K4 methyltransferase activity / positive regulation of muscle cell differentiation / viral process / cysteine-type peptidase activity / PKMTs methylate histone lysines / virion component / actin binding / RNA polymerase II-specific DNA-binding transcription factor binding / host cell cytoplasm / transcription coactivator activity / chromatin / positive regulation of DNA-templated transcription / positive regulation of transcription by RNA polymerase II / proteolysis / nucleoplasm / metal ion binding / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() ![]() | ||||||
手法 | ![]() ![]() ![]() | ||||||
![]() | Gao, X. / Cui, S. | ||||||
資金援助 | 1件
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![]() | ![]() タイトル: The EV71 2A protease occupies the central cleft of SETD3 and disrupts SETD3-actin interaction. 著者: Xiaopan Gao / Bei Wang / Kaixiang Zhu / Linyue Wang / Bo Qin / Kun Shang / Wei Ding / Jianwei Wang / Sheng Cui / ![]() 要旨: SETD3 is an essential host factor for the replication of a variety of enteroviruses that specifically interacts with viral protease 2A. However, the interaction between SETD3 and the 2A protease has ...SETD3 is an essential host factor for the replication of a variety of enteroviruses that specifically interacts with viral protease 2A. However, the interaction between SETD3 and the 2A protease has not been fully characterized. Here, we use X-ray crystallography and cryo-electron microscopy to determine the structures of SETD3 complexed with the 2A protease of EV71 to 3.5 Å and 3.1 Å resolution, respectively. We find that the 2A protease occupies the V-shaped central cleft of SETD3 through two discrete sites. The relative positions of the two proteins vary in the crystal and cryo-EM structures, showing dynamic binding. A biolayer interferometry assay shows that the EV71 2A protease outcompetes actin for SETD3 binding. We identify key 2A residues involved in SETD3 binding and demonstrate that 2A's ability to bind SETD3 correlates with EV71 production in cells. Coimmunoprecipitation experiments in EV71 infected and 2A expressing cells indicate that 2A interferes with the SETD3-actin complex, and the disruption of this complex reduces enterovirus replication. Together, these results reveal the molecular mechanism underlying the interplay between SETD3, actin, and viral 2A during virus replication. | ||||||
履歴 |
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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 | ![]() | 545.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 434.1 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 | ![]() 8x8qC 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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単位格子 |
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要素
#1: タンパク質 | 分子量: 67342.047 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() 参照: UniProt: Q86TU7 #2: タンパク質 | 分子量: 16562.418 Da / 分子数: 4 / Mutation: C110A / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 発現宿主: ![]() 参照: UniProt: R9YK28 #3: 化合物 | ChemComp-SAH / | #4: 化合物 | ChemComp-ZN / #5: 水 | ChemComp-HOH / | 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: ![]() |
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試料調製
結晶 | マシュー密度: 2.37 Å3/Da / 溶媒含有率: 48.04 % |
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結晶化 | 温度: 296 K / 手法: 蒸気拡散法, ハンギングドロップ法 詳細: 0.02M Citric acid, 0.08M BIS-TRIS propane, pH8.8, 16% PEG 3350 |
-データ収集
回折 | 平均測定温度: 100 K / Serial crystal experiment: N |
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放射光源 | 由来: ![]() ![]() ![]() |
検出器 | タイプ: DECTRIS PILATUS3 S 6M / 検出器: PIXEL / 日付: 2020年7月3日 |
放射 | プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
放射波長 | 波長: 0.9785 Å / 相対比: 1 |
Reflection twin | Operator: h,-k,-h-l / Fraction: 0.09 |
反射 | 解像度: 3.5→49.34 Å / Num. obs: 76091 / % possible obs: 97.9 % / 冗長度: 3.51 % / CC1/2: 0.93 / Net I/σ(I): 2.29 |
反射 シェル | 解像度: 3.5→3.51 Å / Rmerge(I) obs: 2.09 / Num. unique obs: 11533 |
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解析
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精密化 | 構造決定の手法: ![]() 詳細: There are 4 pairs of molecules in the ASU. Only chains A/C have been conducted in-depth analysis and optimization and used for further structure analysis. Other molecules have poor electron ...詳細: There are 4 pairs of molecules in the ASU. Only chains A/C have been conducted in-depth analysis and optimization and used for further structure analysis. Other molecules have poor electron density and were not carried out in-depth optimization.
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溶媒の処理 | 減衰半径: 0.9 Å / VDWプローブ半径: 1.11 Å / 溶媒モデル: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso max: 231.48 Å2 / Biso mean: 90.9712 Å2 / Biso min: 0.23 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: final / 解像度: 3.52→19.99 Å
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LS精密化 シェル | Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 14
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