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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 | ||||||
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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 / DNA end binding / T cell receptor V(D)J recombination / pro-B cell differentiation / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex ...positive regulation of platelet formation / Ku70:Ku80 complex / negative regulation of t-circle formation / DNA end binding / T cell receptor V(D)J recombination / pro-B cell differentiation / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / immature B cell differentiation / cellular response to X-ray / nonhomologous end joining complex / immunoglobulin V(D)J recombination / regulation of smooth muscle cell proliferation / nuclear telomere cap complex / double-strand break repair via alternative nonhomologous end joining / telomere capping / double-strand break repair via classical nonhomologous end joining / regulation of epithelial cell proliferation / Cytosolic sensors of pathogen-associated DNA / IRF3-mediated induction of type I IFN / regulation of hematopoietic stem cell differentiation / regulation of telomere maintenance / recombinational repair / U3 snoRNA binding / protein localization to chromosome, telomeric region / cellular hyperosmotic salinity response / cellular response to fatty acid / positive regulation of neurogenesis / T cell lineage commitment / maturation of 5.8S rRNA / positive regulation of double-strand break repair via nonhomologous end joining / negative regulation of cGAS/STING signaling pathway / telomeric DNA binding / B cell lineage commitment / 2-LTR circle formation / hematopoietic stem cell proliferation / 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 / negative regulation of protein phosphorylation / 5'-deoxyribose-5-phosphate lyase activity / ATP-dependent activity, acting on DNA / positive regulation of protein kinase activity / hematopoietic stem cell differentiation / ectopic germ cell programmed cell death / telomere maintenance via telomerase / somitogenesis / DNA helicase activity / neurogenesis / mitotic G1 DNA damage checkpoint signaling / peptidyl-threonine phosphorylation / telomere maintenance / activation of innate immune response / cyclin binding / cellular response to leukemia inhibitory factor / enzyme activator activity / positive regulation of erythrocyte differentiation / positive regulation of translation / response to gamma radiation / Nonhomologous End-Joining (NHEJ) / small-subunit processome / cellular response to gamma radiation / regulation of circadian rhythm / protein destabilization / brain development / protein-DNA complex / protein modification process / 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 / double-strand break repair via nonhomologous end joining / 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 / peptidyl-serine phosphorylation / T cell differentiation in thymus / heart development / double-stranded DNA binding / scaffold protein binding / secretory granule lumen / DNA recombination / transcription regulator complex / RNA polymerase II-specific DNA-binding transcription factor binding / ficolin-1-rich granule lumen / damaged DNA binding / eukaryotic translation initiation factor 2alpha kinase activity / chromosome, telomeric region / 3-phosphoinositide-dependent protein kinase activity / DNA-dependent protein kinase activity / ribosomal protein S6 kinase activity / histone H3S10 kinase activity / histone H2AXS139 kinase activity / histone H3S28 kinase activity / histone H4S1 kinase activity / histone H2BS14 kinase activity / histone H3T3 kinase activity / histone H2AS121 kinase activity / Rho-dependent protein serine/threonine kinase activity / histone H2BS36 kinase activity 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: 2.91 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. | ||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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PDBx/mmCIF形式 | ![]() | 895.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 713.9 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | 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 ![]() |
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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
-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) ![]() 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) ![]() 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) ![]() |
-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: ![]() |
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: 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 |