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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: 7z88 | ||||||
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タイトル | DNA-PK in the intermediate state | ||||||
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![]() | DNA BINDING PROTEIN / DNA-dependent protein kinase | ||||||
機能・相同性 | ![]() positive regulation of platelet formation / Ku70:Ku80 complex / negative regulation of t-circle formation / T cell receptor V(D)J recombination / DNA end binding / pro-B cell differentiation / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase activity / DNA-dependent protein kinase complex ...positive regulation of platelet formation / Ku70:Ku80 complex / negative regulation of t-circle formation / T cell receptor V(D)J recombination / DNA end binding / pro-B cell differentiation / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase activity / DNA-dependent protein kinase complex / histone H2AXS139 kinase activity / DNA-dependent protein kinase-DNA ligase 4 complex / nonhomologous end joining complex / immunoglobulin V(D)J recombination / immature B cell differentiation / regulation of smooth muscle cell proliferation / positive regulation of double-strand break repair via nonhomologous end joining / cellular response to X-ray / nuclear telomere cap complex / double-strand break repair via alternative nonhomologous end joining / double-strand break repair via classical nonhomologous end joining / regulation of epithelial cell proliferation / telomere capping / Cytosolic sensors of pathogen-associated DNA / IRF3-mediated induction of type I IFN / positive regulation of neurogenesis / regulation of hematopoietic stem cell differentiation / regulation of telomere maintenance / recombinational repair / U3 snoRNA binding / protein localization to chromosome, telomeric region / maturation of 5.8S rRNA / T cell lineage commitment / cellular hyperosmotic salinity response / negative regulation of cGAS/STING signaling pathway / 2-LTR circle formation / telomeric DNA binding / B cell lineage commitment / hematopoietic stem cell proliferation / negative regulation of protein phosphorylation / positive regulation of protein kinase activity / site of DNA damage / 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 / peptidyl-threonine phosphorylation / 5'-deoxyribose-5-phosphate lyase activity / hematopoietic stem cell differentiation / ectopic germ cell programmed cell death / ATP-dependent activity, acting on DNA / telomere maintenance via telomerase / somitogenesis / neurogenesis / mitotic G1 DNA damage checkpoint signaling / telomere maintenance / activation of innate immune response / DNA helicase activity / cyclin binding / positive regulation of erythrocyte differentiation / positive regulation of translation / cellular response to leukemia inhibitory factor / response to gamma radiation / small-subunit processome / Nonhomologous End-Joining (NHEJ) / enzyme activator activity / cellular response to gamma radiation / regulation of circadian rhythm / protein destabilization / protein-DNA complex / brain development / peptidyl-serine phosphorylation / protein modification process / double-strand break repair via nonhomologous end joining / 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 / cellular response to insulin stimulus / intrinsic apoptotic signaling pathway in response to DNA damage / rhythmic process / E3 ubiquitin ligases ubiquitinate target proteins / double-strand break repair / T cell differentiation in thymus / heart development / double-stranded DNA binding / scaffold protein binding / secretory granule lumen / DNA recombination / transcription regulator complex / damaged DNA binding / ficolin-1-rich granule lumen / RNA polymerase II-specific DNA-binding transcription factor binding / chromosome, telomeric region / protein phosphorylation / transcription cis-regulatory region binding / non-specific serine/threonine protein kinase / protein kinase activity / 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 / ubiquitin protein ligase binding 類似検索 - 分子機能 | ||||||
生物種 | ![]() | ||||||
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: 3.33 Å | ||||||
![]() | Liang, S. / Blundell, T.L. | ||||||
資金援助 | ![]()
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![]() | ![]() 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. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロード
PDBx/mmCIF形式 | ![]() | 873.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 694.3 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.4 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.6 MB | 表示 | |
XML形式データ | ![]() | 144.5 KB | 表示 | |
CIF形式データ | ![]() | 213.8 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 14546MC ![]() 7z87C 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 ![]() |
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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
-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) ![]() 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) ![]() 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) ![]() |
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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) ![]() |
-タンパク質 / 非ポリマー , 2種, 2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) ![]() 参照: UniProt: P78527, non-specific serine/threonine protein kinase |
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#6: 化合物 | ChemComp-1IX / (~{ |
-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: ![]() |
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: ![]() |
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: 3.33 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 190498 / 対称性のタイプ: POINT |