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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: 8rd4 | |||||||||||||||
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| タイトル | Telomeric RAP1:DNA-PK complex | |||||||||||||||
要素 |
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キーワード | DNA BINDING PROTEIN / Telomere NHEJ BRCT domain SAP domain | |||||||||||||||
| 機能・相同性 | 機能・相同性情報negative regulation of DNA recombination at telomere / protection from non-homologous end joining at telomere / positive regulation of platelet formation / Ku70:Ku80 complex / negative regulation of telomere maintenance / negative regulation of t-circle formation / T cell receptor V(D)J recombination / DNA end binding / pro-B cell differentiation / telomere maintenance via telomere lengthening ...negative regulation of DNA recombination at telomere / protection from non-homologous end joining at telomere / positive regulation of platelet formation / Ku70:Ku80 complex / negative regulation of telomere maintenance / negative regulation of t-circle formation / T cell receptor V(D)J recombination / DNA end binding / pro-B cell differentiation / telomere maintenance via telomere lengthening / shelterin complex / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase activity / Telomere C-strand synthesis initiation / DNA-dependent protein kinase complex / histone H2AXS139 kinase activity / 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 / Telomere C-strand (Lagging Strand) Synthesis / nuclear telomere cap complex / double-strand break repair via alternative nonhomologous end joining / G-rich strand telomeric DNA binding / regulation of epithelial cell proliferation / double-strand break repair via classical nonhomologous end joining / telomere capping / Cytosolic sensors of pathogen-associated DNA / Processive synthesis on the C-strand of the telomere / Polymerase switching on the C-strand of the telomere / IRF3-mediated induction of type I IFN / Removal of the Flap Intermediate from the C-strand / positive regulation of neurogenesis / regulation of hematopoietic stem cell differentiation / recombinational repair / regulation of telomere maintenance / protein localization to chromosome, telomeric region / U3 snoRNA binding / maturation of 5.8S rRNA / T cell lineage commitment / regulation of double-strand break repair via homologous recombination / cellular hyperosmotic salinity response / negative regulation of cGAS/STING signaling pathway / positive regulation of double-strand break repair via nonhomologous end joining / nuclear chromosome / 2-LTR circle formation / B cell lineage commitment / telomeric DNA binding / hematopoietic stem cell proliferation / negative regulation of protein phosphorylation / positive regulation of telomere maintenance / positive regulation of protein kinase activity / 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 / site of DNA damage / peptidyl-threonine phosphorylation / Telomere Extension By Telomerase / 5'-deoxyribose-5-phosphate lyase activity / hematopoietic stem cell differentiation / ATP-dependent activity, acting on DNA / ectopic germ cell programmed cell death / somitogenesis / telomere maintenance via telomerase / phosphatase binding / Packaging Of Telomere Ends / mitotic G1 DNA damage checkpoint signaling / neurogenesis / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / telomere maintenance / activation of innate immune response / DNA helicase activity / Inhibition of DNA recombination at telomere / cyclin binding / Meiotic synapsis / positive regulation of erythrocyte differentiation / positive regulation of translation / cellular response to leukemia inhibitory factor / response to gamma radiation / male germ cell nucleus / small-subunit processome / Nonhomologous End-Joining (NHEJ) / enzyme activator activity / cellular response to gamma radiation / positive regulation of non-canonical NF-kappaB signal transduction / positive regulation of NF-kappaB transcription factor activity / protein-DNA complex / regulation of circadian rhythm / brain development / protein destabilization / peptidyl-serine phosphorylation / DNA Damage/Telomere Stress Induced Senescence / double-strand break repair via nonhomologous end joining / 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 / cellular response to insulin stimulus 類似検索 - 分子機能 | |||||||||||||||
| 生物種 | Homo sapiens (ヒト)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: 3.58 Å | |||||||||||||||
データ登録者 | Eickhoff, P. / Fisher, C.E.L. / Inian, O. / Guettler, S. / Douglas, M.E. | |||||||||||||||
| 資金援助 | 英国, 1件
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引用 | ジャーナル: Nature / 年: 2025タイトル: Chromosome end protection by RAP1-mediated inhibition of DNA-PK. 著者: Patrik Eickhoff / Ceylan Sonmez / Charlotte E L Fisher / Oviya Inian / Theodoros I Roumeliotis / Angela Dello Stritto / Jörg Mansfeld / Jyoti S Choudhary / Sebastian Guettler / Francisca ...著者: Patrik Eickhoff / Ceylan Sonmez / Charlotte E L Fisher / Oviya Inian / Theodoros I Roumeliotis / Angela Dello Stritto / Jörg Mansfeld / Jyoti S Choudhary / Sebastian Guettler / Francisca Lottersberger / Max E Douglas / ![]() 要旨: During classical non-homologous end joining (cNHEJ), DNA-dependent protein kinase (DNA-PK) encapsulates free DNA ends, forming a recruitment platform for downstream end-joining factors including ...During classical non-homologous end joining (cNHEJ), DNA-dependent protein kinase (DNA-PK) encapsulates free DNA ends, forming a recruitment platform for downstream end-joining factors including ligase 4 (LIG4). DNA-PK can also bind telomeres and regulate their resection, but does not initiate cNHEJ at this position. How the end-joining process is regulated in this context-specific manner is currently unclear. Here we show that the shelterin components TRF2 and RAP1 form a complex with DNA-PK that directly represses its end-joining function at telomeres. Biochemical experiments and cryo-electron microscopy reveal that when bound to TRF2, RAP1 establishes a network of interactions with KU and DNA that prevents DNA-PK from recruiting LIG4. In mouse and human cells, RAP1 is redundant with the Apollo nuclease in repressing cNHEJ at chromosome ends, demonstrating that the inhibition of DNA-PK prevents telomere fusions in parallel with overhang-dependent mechanisms. Our experiments show that the end-joining function of DNA-PK is directly and specifically repressed at telomeres, establishing a molecular mechanism for how individual linear chromosomes are maintained in mammalian cells. | |||||||||||||||
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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 | 8rd4.cif.gz | 921.9 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8rd4.ent.gz | 732.5 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8rd4.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
| 文書・要旨 | 8rd4_validation.pdf.gz | 935.7 KB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 8rd4_full_validation.pdf.gz | 1022.5 KB | 表示 | |
| XML形式データ | 8rd4_validation.xml.gz | 128.8 KB | 表示 | |
| CIF形式データ | 8rd4_validation.cif.gz | 195.3 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/rd/8rd4 ftp://data.pdbj.org/pub/pdb/validation_reports/rd/8rd4 | HTTPS FTP |
-関連構造データ
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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
-タンパク質 , 2種, 2分子 AD
| #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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| #2: タンパク質 | 分子量: 44314.871 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: TERF2IP / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q9NYB0 |
-X-ray repair cross-complementing protein ... , 2種, 2分子 EF
| #3: 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: Trichoplusia ni (イラクサキンウワバ)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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| #4: 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: Trichoplusia ni (イラクサキンウワバ)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 XY
| #5: DNA鎖 | 分子量: 31103.840 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) |
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| #6: DNA鎖 | 分子量: 30589.674 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) |
-詳細
| Has protein modification | N |
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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: Telomeric RAP1:DNA-PK complex / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: Trichoplusia ni (イラクサキンウワバ) |
| 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
| 顕微鏡 | モデル: TFS GLACIOS |
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| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 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): 2500 nm / 最小 デフォーカス(公称値): 1000 nm |
| 撮影 | 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: TFS FALCON 4i (4k 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: 3.58 Å / 解像度の算出法: OTHER / 粒子像の数: 526885 詳細: Composite map, resolution estimated from overall consensus map using a FSC 0.143 cut-off 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




PDBj













































Trichoplusia ni (イラクサキンウワバ)
FIELD EMISSION GUN