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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: 7axz | |||||||||||||||||||||||||||||||||||||||||||||
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| タイトル | Ku70/80 complex apo form | |||||||||||||||||||||||||||||||||||||||||||||
要素 |
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キーワード | DNA BINDING PROTEIN / NHEJ / Ku70/80 / XRCC5 / XRCC6 / DNA damage | |||||||||||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報Ku70:Ku80 complex / negative regulation of t-circle formation / DNA end binding / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / nonhomologous end joining complex / regulation of smooth muscle cell proliferation / cellular response to X-ray ...Ku70:Ku80 complex / negative regulation of t-circle formation / DNA end binding / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / nonhomologous end joining complex / regulation of smooth muscle cell proliferation / cellular response to X-ray / double-strand break repair via classical nonhomologous end joining / nuclear telomere cap complex / Cytosolic sensors of pathogen-associated DNA / IRF3-mediated induction of type I IFN / regulation of telomere maintenance / recombinational repair / protein localization to chromosome, telomeric region / U3 snoRNA binding / positive regulation of neurogenesis / cellular hyperosmotic salinity response / 2-LTR circle formation / hematopoietic stem cell proliferation / telomeric repeat DNA binding / DNA 3'-5' helicase / 5'-deoxyribose-5-phosphate lyase activity / hematopoietic stem cell differentiation / ATP-dependent activity, acting on DNA / telomere maintenance via telomerase / site of DNA damage / activation of innate immune response / neurogenesis / telomere maintenance / cyclin binding / DNA-(apurinic or apyrimidinic site) lyase / DNA helicase activity / cellular response to leukemia inhibitory factor / Nonhomologous End-Joining (NHEJ) / small-subunit processome / cellular response to gamma radiation / protein-DNA complex / double-strand break repair via nonhomologous end joining / enzyme activator activity / double-strand break repair / double-stranded DNA binding / scaffold protein binding / DNA recombination / secretory granule lumen / transcription regulator complex / ficolin-1-rich granule lumen / damaged DNA binding / chromosome, telomeric region / transcription cis-regulatory region binding / ribonucleoprotein complex / innate immune response / negative regulation of DNA-templated transcription / DNA damage response / Neutrophil degranulation / ubiquitin protein ligase binding / positive regulation of DNA-templated transcription / protein-containing complex binding / nucleolus / ATP hydrolysis activity / positive regulation of transcription by RNA polymerase II / protein-containing complex / DNA binding / RNA binding / extracellular region / nucleoplasm / ATP binding / membrane / nucleus / plasma membrane / cytosol 類似検索 - 分子機能 | |||||||||||||||||||||||||||||||||||||||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||||||||||||||||||||||||||||||||||||||
| 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 | |||||||||||||||||||||||||||||||||||||||||||||
データ登録者 | Hnizda, A. / Tesina, P. / Novak, P. / Blundell, T.L. | |||||||||||||||||||||||||||||||||||||||||||||
| 資金援助 | 英国, 1件
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引用 | ジャーナル: FEBS J / 年: 2021タイトル: SAP domain forms a flexible part of DNA aperture in Ku70/80. 著者: Aleš Hnízda / Petr Tesina / Thanh-Binh Nguyen / Zdeněk Kukačka / Lukas Kater / Amanda K Chaplin / Roland Beckmann / David B Ascher / Petr Novák / Tom L Blundell / ![]() 要旨: Nonhomologous end joining (NHEJ) is a DNA repair mechanism that religates double-strand DNA breaks to maintain genomic integrity during the entire cell cycle. The Ku70/80 complex recognizes DNA ...Nonhomologous end joining (NHEJ) is a DNA repair mechanism that religates double-strand DNA breaks to maintain genomic integrity during the entire cell cycle. The Ku70/80 complex recognizes DNA breaks and serves as an essential hub for recruitment of NHEJ components. Here, we describe intramolecular interactions of the Ku70 C-terminal domain, known as the SAP domain. Using single-particle cryo-electron microscopy, mass spectrometric analysis of intermolecular cross-linking and molecular modelling simulations, we captured variable positions of the SAP domain depending on DNA binding. The first position was localized at the DNA aperture in the Ku70/80 apo form but was not observed in the DNA-bound state. The second position, which was observed in both apo and DNA-bound states, was found below the DNA aperture, close to the helical arm of Ku70. The localization of the SAP domain in the DNA aperture suggests a function as a flexible entry gate for broken DNA. DATABASES: EM maps have been deposited in EMDB (EMD-11933). Coordinates have been deposited in Protein Data Bank (PDB 7AXZ). Other data are available from corresponding authors upon a request. | |||||||||||||||||||||||||||||||||||||||||||||
| 履歴 |
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構造の表示
| ムービー |
ムービービューア |
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| 構造ビューア | 分子: Molmil Jmol/JSmol |
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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 | 7axz.cif.gz | 198.2 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb7axz.ent.gz | 152.4 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 7axz.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ax/7axz ftp://data.pdbj.org/pub/pdb/validation_reports/ax/7axz | HTTPS FTP |
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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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要素
| #1: タンパク質 | 分子量: 69945.039 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: XRCC6, G22P1発現宿主: ![]() 参照: UniProt: P12956, 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与, 付加脱離酵素(リアーゼ); 炭素- ...参照: UniProt: P12956, 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与, 付加脱離酵素(リアーゼ); 炭素-酸素リアーゼ類; その他の炭素-酸素リアーゼ |
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| #2: タンパク質 | 分子量: 82812.438 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: XRCC5, G22P2発現宿主: ![]() 参照: UniProt: P13010, 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与 |
| Has protein modification | N |
-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 | 名称: Ku70/80 complex / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 7 |
| 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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD |
| 撮影 | 電子線照射量: 39.3 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k 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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| EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
| 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: 226000 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 拘束条件 |
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ムービー
コントローラー
万見について




Homo sapiens (ヒト)
英国, 1件
引用

UCSF Chimera










PDBj











