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データを開く
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基本情報
| 登録情報 | ![]() | |||||||||
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| タイトル | DNA-PK bound to 153 bp H2AX nucleosome with ATPyS | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | DNA-binding protein / NHEJ / Ku70/80 / nucleosome / DNA BINDING PROTEIN | |||||||||
| 機能・相同性 | 機能・相同性情報positive regulation of platelet formation / Ku70:Ku80 complex / T cell receptor V(D)J recombination / negative regulation of t-circle formation / pro-B cell differentiation / DNA end binding / DNA-dependent protein kinase activity / small-subunit processome assembly / positive regulation of lymphocyte differentiation / histone H2AXS139 kinase activity ...positive regulation of platelet formation / Ku70:Ku80 complex / T cell receptor V(D)J recombination / negative regulation of t-circle formation / pro-B cell differentiation / DNA end binding / DNA-dependent protein kinase activity / small-subunit processome assembly / positive regulation of lymphocyte differentiation / histone H2AXS139 kinase activity / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / immunoglobulin V(D)J recombination / nonhomologous end joining complex / immature B cell differentiation / regulation of smooth muscle cell proliferation / cellular response to X-ray / regulation of epithelial cell proliferation / double-strand break repair via alternative nonhomologous end joining / double-strand break repair via classical nonhomologous end joining / nuclear telomere cap complex / Cytosolic sensors of pathogen-associated DNA / protein localization to site of double-strand break / XY body / telomere capping / IRF3-mediated induction of type I IFN / chromatin-protein adaptor activity / regulation of hematopoietic stem cell differentiation / regulation of telomere maintenance / recombinational repair / protein localization to chromosome, telomeric region / U3 snoRNA binding / peptidyl-threonine phosphorylation / positive regulation of neurogenesis / maturation of 5.8S rRNA / T cell lineage commitment / cellular hyperosmotic salinity response / positive regulation of double-strand break repair via nonhomologous end joining / 2-LTR circle formation / negative regulation of cGAS/STING signaling pathway / B cell lineage commitment / hematopoietic stem cell proliferation / response to ionizing radiation / telomeric repeat DNA binding / negative regulation of protein phosphorylation / DNA 3'-5' helicase / 5'-deoxyribose-5-phosphate lyase activity / hematopoietic stem cell differentiation / negative regulation of tumor necrosis factor-mediated signaling pathway / ectopic germ cell programmed cell death / ATP-dependent activity, acting on DNA / somitogenesis / telomere maintenance via telomerase / site of DNA damage / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / mitotic G1 DNA damage checkpoint signaling / CENP-A containing nucleosome / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / activation of innate immune response / Deposition of new CENPA-containing nucleosomes at the centromere / epigenetic regulation of gene expression / neurogenesis / telomere organization / positive regulation of erythrocyte differentiation / Interleukin-7 signaling / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / telomere maintenance / RNA Polymerase I Promoter Opening / DNA damage checkpoint signaling / Inhibition of DNA recombination at telomere / cyclin binding / Assembly of the ORC complex at the origin of replication / Meiotic synapsis / SUMOylation of chromatin organization proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / DNA-(apurinic or apyrimidinic site) lyase / positive regulation of DNA repair / protein modification process / DNA helicase activity / peptidyl-serine phosphorylation / replication fork / DNA methylation / Condensation of Prophase Chromosomes / cellular response to leukemia inhibitory factor / Chromatin modifications during the maternal to zygotic transition (MZT) / SIRT1 negatively regulates rRNA expression / HCMV Late Events / condensed nuclear chromosome / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / male germ cell nucleus / response to gamma radiation / PRC2 methylates histones and DNA / positive regulation of translation / innate immune response in mucosa 類似検索 - 分子機能 | |||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||
| 手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 5.0 Å | |||||||||
データ登録者 | Hall C / Chaplin AK | |||||||||
| 資金援助 | カナダ, 英国, 2件
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引用 | ジャーナル: Nat Commun / 年: 2025タイトル: Cryo-EM structures of NHEJ assemblies with nucleosomes. 著者: Chloe Hall / Philippe Frit / Antonia Kefala-Stavridi / Amandine Pelletier / Steven W Hardwick / Himani Amin / Matthew K Bilyard / Taiana Maia De Oliviera / Ammarah Tariq / Sayma Zahid / ...著者: Chloe Hall / Philippe Frit / Antonia Kefala-Stavridi / Amandine Pelletier / Steven W Hardwick / Himani Amin / Matthew K Bilyard / Taiana Maia De Oliviera / Ammarah Tariq / Sayma Zahid / Dimitri Y Chirgadze / Shankar Balasubramanian / Katheryn Meek / Virginie Ropars / Jean-Baptiste Charbonnier / Mauro Modesti / Patrick Calsou / Sébastien Britton / Tom L Blundell / Thomas Schalch / Amanda K Chaplin / ![]() 要旨: DNA double-strand breaks (DSBs) are highly deleterious lesions that can trigger cell death or carcinogenesis if unrepaired or misrepaired. In mammals, most DSBs are repaired by non-homologous end ...DNA double-strand breaks (DSBs) are highly deleterious lesions that can trigger cell death or carcinogenesis if unrepaired or misrepaired. In mammals, most DSBs are repaired by non-homologous end joining (NHEJ), which begins when Ku70/80 binds DNA ends and recruits DNA-PKcs to form the DNA-PK holoenzyme. Although recent cryo-EM studies have resolved several NHEJ assemblies, how these factors access DSBs within nucleosomes remains unclear. Here, we present cryo-EM structures of human Ku70/80 and DNA-PK bound to nucleosomes. Ku70/80 binds the DNA end and bends it away from the nucleosome core, while the Ku70 C-terminal SAP domain makes an additional, specific DNA contact. Our DNA-PK-nucleosome structure further reveals the opening of the Ku80 vWA domain, and we show that non-hydrolysable ATP promotes synapsis by stabilising the Ku80-mediated DNA-PK dimer. These structures reveal a model for DSB recognition on nucleosomal DNA and provide insights relevant to targeting NHEJ in cancer therapy. | |||||||||
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構造の表示
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_53237.map.gz | 143.7 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-53237-v30.xml emd-53237.xml | 35.4 KB 35.4 KB | 表示 表示 | EMDBヘッダ |
| FSC (解像度算出) | emd_53237_fsc.xml | 13.8 KB | 表示 | FSCデータファイル |
| 画像 | emd_53237.png | 30.4 KB | ||
| Filedesc metadata | emd-53237.cif.gz | 11.4 KB | ||
| その他 | emd_53237_additional_1.map.gz emd_53237_half_map_1.map.gz emd_53237_half_map_2.map.gz | 135 MB 262.5 MB 262.5 MB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-53237 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-53237 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 9qmsMC ![]() 9igwC ![]() 9igxC ![]() 9q80C ![]() 9q8xC ![]() 9q9fC ![]() 9qcrC ![]() 9qcsC M: このマップから作成された原子モデル 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 F&H 検索 |
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リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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| 「今月の分子」の関連する項目 |
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マップ
| ファイル | ダウンロード / ファイル: emd_53237.map.gz / 形式: CCP4 / 大きさ: 282.6 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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| ボクセルのサイズ | X=Y=Z: 2.472 Å | ||||||||||||||||||||
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| 対称性 | 空間群: 1 | ||||||||||||||||||||
| 詳細 | EMDB XML:
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-添付データ
-追加マップ: #1
| ファイル | emd_53237_additional_1.map | ||||||||||||
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| 投影像・断面図 |
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| 密度ヒストグラム |
-ハーフマップ: #2
| ファイル | emd_53237_half_map_1.map | ||||||||||||
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| 投影像・断面図 |
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| 密度ヒストグラム |
-ハーフマップ: #1
| ファイル | emd_53237_half_map_2.map | ||||||||||||
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| 投影像・断面図 |
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| 密度ヒストグラム |
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試料の構成要素
+全体 : DNA-PK dimer bound to 153bp H2AX nucleosomes with ATPyS
+超分子 #1: DNA-PK dimer bound to 153bp H2AX nucleosomes with ATPyS
+分子 #1: DNA-dependent protein kinase catalytic subunit
+分子 #2: X-ray repair cross-complementing protein 5
+分子 #3: Histone H2AX
+分子 #4: Histone H2B type 1-J
+分子 #5: Histone H3.1
+分子 #6: Histone H4
+分子 #7: X-ray repair cross-complementing protein 6
+分子 #8: DNA
+分子 #9: DNA
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
| 試料の集合状態 | particle |
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試料調製
| 緩衝液 | pH: 7.4 |
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| グリッド | モデル: Quantifoil R1.2/1.3 / 材質: COPPER / メッシュ: 300 / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 30 sec. / 前処理 - 雰囲気: AIR / 詳細: 30mA |
| 凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
| 顕微鏡 | TFS KRIOS |
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| 撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 平均電子線量: 50.87 e/Å2 |
| 電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.0 µm / 最小 デフォーカス(公称値): 0.8 µm |
| 試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
ムービー
コントローラー
万見について




キーワード
Homo sapiens (ヒト)
データ登録者
カナダ,
英国, 2件
引用

































Z
Y
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解析
FIELD EMISSION GUN

