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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: 7z87 | ||||||
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| タイトル | DNA-PK in the active state | ||||||
要素 |
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キーワード | DNA BINDING PROTEIN / DNA-dependent protein kinase | ||||||
| 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 / pro-B cell differentiation / negative regulation of t-circle formation / 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 / pro-B cell differentiation / negative regulation of t-circle formation / 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 classical nonhomologous end joining / double-strand break repair via alternative nonhomologous end joining / nuclear telomere cap complex / Cytosolic sensors of pathogen-associated DNA / telomere capping / IRF3-mediated induction of type I IFN / regulation of hematopoietic stem cell differentiation / recombinational repair / regulation of telomere maintenance / 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 / B cell lineage commitment / negative regulation of cGAS/STING signaling pathway / hematopoietic stem cell proliferation / telomeric repeat DNA binding / negative regulation of protein phosphorylation / DNA 3'-5' helicase / 5'-deoxyribose-5-phosphate lyase activity / hematopoietic stem cell differentiation / ectopic germ cell programmed cell death / somitogenesis / ATP-dependent activity, acting on DNA / telomere maintenance via telomerase / site of DNA damage / mitotic G1 DNA damage checkpoint signaling / activation of innate immune response / neurogenesis / positive regulation of erythrocyte differentiation / telomere maintenance / cyclin binding / DNA-(apurinic or apyrimidinic site) lyase / peptidyl-serine phosphorylation / protein modification process / cellular response to leukemia inhibitory factor / DNA helicase activity / response to gamma radiation / positive regulation of translation / Nonhomologous End-Joining (NHEJ) / small-subunit processome / cellular response to gamma radiation / protein-DNA complex / regulation of circadian rhythm / brain development / protein destabilization / double-strand break repair via nonhomologous end joining / enzyme activator activity / intrinsic apoptotic signaling pathway in response to DNA damage / cellular response to insulin stimulus / T cell differentiation in thymus / rhythmic process / double-strand break repair / E3 ubiquitin ligases ubiquitinate target proteins / heart development / double-stranded DNA binding / scaffold protein binding / DNA recombination / secretory granule lumen / transcription regulator complex / ficolin-1-rich granule lumen / protein phosphorylation / damaged DNA binding / RNA polymerase II-specific DNA-binding transcription factor binding / protein kinase activity / chromosome, telomeric region / non-specific serine/threonine protein kinase / transcription cis-regulatory region binding / positive regulation of apoptotic process / ribonucleoprotein complex / protein domain specific binding / innate immune response / protein serine kinase activity / negative regulation of DNA-templated transcription / protein serine/threonine kinase activity / DNA damage response / Neutrophil degranulation 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: 2.91 Å | ||||||
データ登録者 | Liang, S. / Blundell, T.L. | ||||||
| 資金援助 | 英国, 1件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2023タイトル: Human DNA-dependent protein kinase activation mechanism. 著者: Shikang Liang / Tom L Blundell / ![]() 要旨: DNA-dependent protein kinase (DNA-PK), a multicomponent complex including the DNA-PK catalytic subunit and Ku70/80 heterodimer together with DNA, is central to human DNA damage response and repair. ...DNA-dependent protein kinase (DNA-PK), a multicomponent complex including the DNA-PK catalytic subunit and Ku70/80 heterodimer together with DNA, is central to human DNA damage response and repair. Using a DNA-PK-selective inhibitor (M3814), we identified from one dataset two cryo-EM structures of the human DNA-PK complex in different states, the intermediate state and the active state. Here we show that activation of the kinase is regulated through conformational changes caused by the binding ligand and the string region (residues 802-846) of the DNA-PK catalytic subunit, particularly the helix-hairpin-helix motif (residues 816-836) that interacts with DNA. These observations demonstrate the regulatory role of the ligand and explain why DNA-PK is DNA dependent. Cooperation and coordination among binding partners, disordered flexible regions and mechanically flexible HEAT repeats modulate the activation of the kinase. Together with previous findings, these results provide a better molecular understanding of DNA-PK catalysis. | ||||||
| 履歴 |
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構造の表示
| 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 | 7z87.cif.gz | 895.1 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb7z87.ent.gz | 713.9 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 7z87.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/z8/7z87 ftp://data.pdbj.org/pub/pdb/validation_reports/z8/7z87 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 14545MC ![]() 7z88C M: このデータのモデリングに利用したマップデータ 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
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集合体
| 登録構造単位 | ![]()
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| 1 |
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要素
-タンパク質 , 1種, 1分子 A
| #1: タンパク質 | 分子量: 469673.219 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト)参照: UniProt: P78527, non-specific serine/threonine protein kinase |
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-X-ray repair cross-complementing protein ... , 2種, 2分子 BC
| #2: 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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| #3: 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 |
-DNA鎖 , 2種, 2分子 DE
| #4: DNA鎖 | 分子量: 7900.079 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) Homo sapiens (ヒト) |
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| #5: DNA鎖 | 分子量: 8078.203 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) Homo sapiens (ヒト) |
-非ポリマー , 2種, 195分子 


| #6: 化合物 | ChemComp-1IX / (~{ |
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| #7: 水 | ChemComp-HOH / |
-詳細
| 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: 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: Human DNA-dependent protein kinase / タイプ: COMPLEX / Entity ID: #1-#5 / 由来: NATURAL |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 緩衝液 | pH: 7.6 |
| 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 / 最大 デフォーカス(公称値): 2300 nm / 最小 デフォーカス(公称値): 1100 nm |
| 撮影 | 電子線照射量: 47.22 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 3次元再構成 | 解像度: 2.91 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 275300 / 対称性のタイプ: POINT |
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万見について




Homo sapiens (ヒト)
英国, 1件
引用


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microscopy

