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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: 6wwa | ||||||
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タイトル | Crystal structure of human SHLD2-SHLD3-REV7 complex | ||||||
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![]() | NUCLEAR PROTEIN / REV7 / SHLD2 / SHLD3 | ||||||
機能・相同性 | ![]() somatic diversification of immunoglobulins involved in immune response / DNA damage response, signal transduction resulting in transcription / zeta DNA polymerase complex / positive regulation of isotype switching / negative regulation of transcription by competitive promoter binding / positive regulation of double-strand break repair via nonhomologous end joining / negative regulation of cell-cell adhesion mediated by cadherin / JUN kinase binding / negative regulation of epithelial to mesenchymal transition / regulation of double-strand break repair via homologous recombination ...somatic diversification of immunoglobulins involved in immune response / DNA damage response, signal transduction resulting in transcription / zeta DNA polymerase complex / positive regulation of isotype switching / negative regulation of transcription by competitive promoter binding / positive regulation of double-strand break repair via nonhomologous end joining / negative regulation of cell-cell adhesion mediated by cadherin / JUN kinase binding / negative regulation of epithelial to mesenchymal transition / regulation of double-strand break repair via homologous recombination / negative regulation of ubiquitin protein ligase activity / mitotic spindle assembly checkpoint signaling / telomere maintenance in response to DNA damage / positive regulation of peptidyl-serine phosphorylation / error-prone translesion synthesis / negative regulation of double-strand break repair via homologous recombination / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI / actin filament organization / regulation of cell growth / negative regulation of canonical Wnt signaling pathway / negative regulation of protein catabolic process / spindle / transcription corepressor activity / site of double-strand break / double-strand break repair / actin cytoskeleton / chromosome / RNA polymerase II-specific DNA-binding transcription factor binding / cell division / DNA repair / chromatin / positive regulation of DNA-templated transcription / nucleolus / negative regulation of transcription by RNA polymerase II / nucleoplasm / nucleus / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | ![]() | ||||||
手法 | ![]() ![]() ![]() | ||||||
![]() | Xie, W. / Patel, D.J. | ||||||
![]() | ![]() タイトル: Molecular mechanisms of assembly and TRIP13-mediated remodeling of the human Shieldin complex. 著者: Wei Xie / Shengliu Wang / Juncheng Wang / M Jason de la Cruz / Guotai Xu / Maurizio Scaltriti / Dinshaw J Patel / ![]() 要旨: The Shieldin complex, composed of REV7, SHLD1, SHLD2, and SHLD3, protects DNA double-strand breaks (DSBs) to promote nonhomologous end joining. The AAA ATPase TRIP13 remodels Shieldin to regulate DNA ...The Shieldin complex, composed of REV7, SHLD1, SHLD2, and SHLD3, protects DNA double-strand breaks (DSBs) to promote nonhomologous end joining. The AAA ATPase TRIP13 remodels Shieldin to regulate DNA repair pathway choice. Here we report crystal structures of human SHLD3-REV7 binary and fused SHLD2-SHLD3-REV7 ternary complexes, revealing that assembly of Shieldin requires fused SHLD2-SHLD3 induced conformational heterodimerization of open (O-REV7) and closed (C-REV7) forms of REV7. We also report the cryogenic electron microscopy (cryo-EM) structures of the ATPγS-bound fused SHLD2-SHLD3-REV7-TRIP13 complexes, uncovering the principles underlying the TRIP13-mediated disassembly mechanism of the Shieldin complex. We demonstrate that the N terminus of REV7 inserts into the central channel of TRIP13, setting the stage for pulling the unfolded N-terminal peptide of C-REV7 through the central TRIP13 hexameric channel. The primary interface involves contacts between the safety-belt segment of C-REV7 and a conserved and negatively charged loop of TRIP13. This process is mediated by ATP hydrolysis-triggered rotatory motions of the TRIP13 ATPase, thereby resulting in the disassembly of the Shieldin complex. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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-検証レポート
文書・要旨 | ![]() | 476.1 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 489 KB | 表示 | |
XML形式データ | ![]() | 30.6 KB | 表示 | |
CIF形式データ | ![]() | 40.5 KB | 表示 | |
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-関連構造データ
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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: 24323.348 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #2: タンパク質 | 分子量: 10678.139 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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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: 6.69 Å3/Da / 溶媒含有率: 81.6 % |
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結晶化 | 温度: 293 K / 手法: 蒸気拡散法, ハンギングドロップ法 / pH: 5.6 / 詳細: 0.1 M Na acetate pH 5.6, 1.5 M Na formate |
-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: PSI PILATUS 6M / 検出器: PIXEL / 日付: 2019年12月16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: 0.9792 Å / 相対比: 1 |
反射 | 解像度: 3.8→40 Å / Num. obs: 30856 / % possible obs: 99.74 % / 冗長度: 35.8 % / Biso Wilson estimate: 153.27 Å2 / CC1/2: 0.999 / CC star: 1 / Rmerge(I) obs: 0.4031 / Rpim(I) all: 0.06797 / Rrim(I) all: 0.4089 / Net I/σ(I): 10.3 |
反射 シェル | 解像度: 3.8→3.936 Å / Rmerge(I) obs: 4.971 / Mean I/σ(I) obs: 0.86 / Num. unique obs: 3027 / CC1/2: 0.472 / CC star: 0.801 / Rpim(I) all: 0.8316 / Rrim(I) all: 5.04 |
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解析
ソフトウェア |
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精密化 | 構造決定の手法: ![]() 開始モデル: 3ABD 解像度: 3.8→39.66 Å / SU ML: 0.5072 / 交差検証法: FREE R-VALUE / σ(F): 1.34 / 位相誤差: 29.5099 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2
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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 mean: 189.45 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: LAST / 解像度: 3.8→39.66 Å
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拘束条件 |
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LS精密化 シェル |
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精密化 TLS | 手法: refined / Origin x: 109.905339802 Å / Origin y: 14.6069753103 Å / Origin z: 133.372128478 Å
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精密化 TLSグループ | Selection details: all |