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基本情報
登録情報 | データベース: PDB / ID: 7k1j | |||||||||||||||||||||||||||||||||
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タイトル | CryoEM structure of inactivated-form DNA-PK (Complex III) | |||||||||||||||||||||||||||||||||
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![]() | DNA BINDING PROTEIN/DNA / NHEJ / V(D)J recombination / DNA repair / DNA BINDING PROTEIN / DNA BINDING PROTEIN-DNA complex | |||||||||||||||||||||||||||||||||
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 complex / DNA-dependent protein kinase-DNA ligase 4 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 complex / 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 / cellular response to X-ray / positive regulation of double-strand break repair via nonhomologous end joining / 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 / cellular hyperosmotic salinity response / maturation of 5.8S rRNA / T cell lineage commitment / 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 / ATP-dependent activity, acting on DNA / ectopic germ cell programmed cell death / telomere maintenance via telomerase / somitogenesis / mitotic G1 DNA damage checkpoint signaling / neurogenesis / telomere maintenance / DNA helicase activity / activation of innate immune response / cyclin binding / positive regulation of erythrocyte differentiation / cellular response to leukemia inhibitory factor / positive regulation of translation / DNA-dependent protein kinase activity / histone H2AXS139 kinase activity / response to gamma radiation / Nonhomologous End-Joining (NHEJ) / small-subunit processome / enzyme activator activity / cellular response to gamma radiation / regulation of circadian rhythm / protein destabilization / protein-DNA complex / protein modification process / brain development / 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 / peptidyl-serine phosphorylation / 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 / transcription cis-regulatory region binding / non-specific serine/threonine protein kinase / protein kinase activity / protein phosphorylation / 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 | ![]() synthetic construct (人工物) | |||||||||||||||||||||||||||||||||
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: 3.9 Å | |||||||||||||||||||||||||||||||||
![]() | Chen, X. / Gellert, M. / Yang, W. | |||||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structure of an activated DNA-PK and its implications for NHEJ. 著者: Xuemin Chen / Xiang Xu / Yun Chen / Joyce C Cheung / Huaibin Wang / Jiansen Jiang / Natalia de Val / Tara Fox / Martin Gellert / Wei Yang / ![]() 要旨: DNA-dependent protein kinase (DNA-PK), like all phosphatidylinositol 3-kinase-related kinases (PIKKs), is composed of conserved FAT and kinase domains (FATKINs) along with solenoid structures made of ...DNA-dependent protein kinase (DNA-PK), like all phosphatidylinositol 3-kinase-related kinases (PIKKs), is composed of conserved FAT and kinase domains (FATKINs) along with solenoid structures made of HEAT repeats. These kinases are activated in response to cellular stress signals, but the mechanisms governing activation and regulation remain unresolved. For DNA-PK, all existing structures represent inactive states with resolution limited to 4.3 Å at best. Here, we report the cryoelectron microscopy (cryo-EM) structures of DNA-PKcs (DNA-PK catalytic subunit) bound to a DNA end or complexed with Ku70/80 and DNA in both inactive and activated forms at resolutions of 3.7 Å overall and 3.2 Å for FATKINs. These structures reveal the sequential transition of DNA-PK from inactive to activated forms. Most notably, activation of the kinase involves previously unknown stretching and twisting within individual solenoid segments and loosens DNA-end binding. This unprecedented structural plasticity of helical repeats may be a general regulatory mechanism of HEAT-repeat proteins. | |||||||||||||||||||||||||||||||||
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 863.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 682.7 KB | 表示 | ![]() |
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-検証レポート
文書・要旨 | ![]() | 968 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1 MB | 表示 | |
XML形式データ | ![]() | 114.7 KB | 表示 | |
CIF形式データ | ![]() | 182.1 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 | ![]() 22624MC ![]() 7k0yC ![]() 7k10C ![]() 7k11C ![]() 7k17C ![]() 7k19C ![]() 7k1bC ![]() 7k1kC ![]() 7k1nC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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類似構造データ |
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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: 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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#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) ![]() ![]() 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 | ||||
#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) ![]() ![]() 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 | ||||
#4: DNA鎖 | 分子量: 7311.714 Da / 分子数: 2 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) #5: DNA鎖 | 分子量: 4956.243 Da / 分子数: 2 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) 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: complex III / タイプ: COMPLEX / Entity ID: all / 由来: MULTIPLE SOURCES | ||||||||||||
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由来(天然) |
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由来(組換発現) | 生物種: ![]() | ||||||||||||
緩衝液 | pH: 7.9 | ||||||||||||
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 |
撮影 | 電子線照射量: 45 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: 1.14_3260: / 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: 3.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 131788 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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