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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: 9svx | ||||||||||||||||||||||||
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| タイトル | XRCC3-RAD51C-RAD51D-XRCC2 (XRCC3 complex) capping a RAD51 filament on single stranded DNA | ||||||||||||||||||||||||
要素 |
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キーワード | DNA BINDING PROTEIN / complex / tumor suppresor | ||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報telomeric loop disassembly / meiotic DNA recombinase assembly / Rad51C-XRCC3 complex / Rad51B-Rad51C-Rad51D-XRCC2 complex / female meiosis sister chromatid cohesion / double-strand break repair via synthesis-dependent strand annealing / telomere maintenance via telomere trimming / resolution of mitotic recombination intermediates / presynaptic intermediate filament cytoskeleton / response to glucoside ...telomeric loop disassembly / meiotic DNA recombinase assembly / Rad51C-XRCC3 complex / Rad51B-Rad51C-Rad51D-XRCC2 complex / female meiosis sister chromatid cohesion / double-strand break repair via synthesis-dependent strand annealing / telomere maintenance via telomere trimming / resolution of mitotic recombination intermediates / presynaptic intermediate filament cytoskeleton / response to glucoside / positive regulation of mitotic cell cycle spindle assembly checkpoint / crossover junction DNA endonuclease activity / mitotic recombination-dependent replication fork processing / DNA recombinase assembly / chromosome organization involved in meiotic cell cycle / telomere maintenance via telomere lengthening / double-strand break repair involved in meiotic recombination / nuclear ubiquitin ligase complex / cellular response to cisplatin / regulation of centrosome duplication / DNA strand invasion / t-circle formation / mitotic recombination / cellular response to hydroxyurea / cellular response to camptothecin / replication-born double-strand break repair via sister chromatid exchange / lateral element / DNA strand exchange activity / regulation of DNA damage checkpoint / gamma-tubulin binding / Impaired BRCA2 binding to PALB2 / telomere maintenance via recombination / regulation of fibroblast apoptotic process / reciprocal meiotic recombination / single-stranded DNA helicase activity / centrosome cycle / sister chromatid cohesion / positive regulation of neurogenesis / ATP-dependent DNA damage sensor activity / regulation of double-strand break repair via homologous recombination / HDR through Single Strand Annealing (SSA) / Homologous DNA Pairing and Strand Exchange / Defective homologous recombination repair (HRR) due to BRCA1 loss of function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA1 binding function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA2/RAD51/RAD51C binding function / Resolution of D-loop Structures through Synthesis-Dependent Strand Annealing (SDSA) / nuclear chromosome / Resolution of D-loop Structures through Holliday Junction Intermediates / Transcriptional Regulation by E2F6 / Impaired BRCA2 binding to RAD51 / microtubule organizing center / male meiosis I / replication fork processing / positive regulation of G2/M transition of mitotic cell cycle / Presynaptic phase of homologous DNA pairing and strand exchange / response to X-ray / somitogenesis / ATP-dependent activity, acting on DNA / interstrand cross-link repair / condensed chromosome / DNA polymerase binding / neurogenesis / telomere maintenance / replication fork / condensed nuclear chromosome / male germ cell nucleus / cellular response to ionizing radiation / response to gamma radiation / meiotic cell cycle / TP53 Regulates Transcription of DNA Repair Genes / cellular response to gamma radiation / protein-DNA complex / PML body / double-strand break repair via homologous recombination / Meiotic recombination / HDR through Homologous Recombination (HRR) / 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 / multicellular organism growth / response to toxic substance / cell junction / mitotic cell cycle / single-stranded DNA binding / site of double-strand break / Factors involved in megakaryocyte development and platelet production / double-stranded DNA binding / DNA recombination / spermatogenesis / in utero embryonic development / negative regulation of neuron apoptotic process / chromosome, telomeric region / regulation of cell cycle / mitochondrial matrix / response to xenobiotic stimulus / DNA repair / chromatin binding / DNA damage response / centrosome / chromatin / nucleolus / perinuclear region of cytoplasm 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: 2.7 Å | ||||||||||||||||||||||||
データ登録者 | Greenhough, L.A. / West, S.C. | ||||||||||||||||||||||||
| 資金援助 | 英国, 4件
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引用 | ジャーナル: Science / 年: 2026タイトル: Cryo-electron microscopic visualization of RAD51 filament assembly and end-capping by XRCC3-RAD51C-RAD51D-XRCC2. 著者: Luke A Greenhough / Lorenzo Galanti / Chih-Chao Liang / Simon J Boulton / Stephen C West / ![]() 要旨: Homologous recombination repairs DNA double-strand breaks and protects stalled replication forks, but how the five RAD51 paralogs contribute to these processes remains unclear. Mutations in the RAD51 ...Homologous recombination repairs DNA double-strand breaks and protects stalled replication forks, but how the five RAD51 paralogs contribute to these processes remains unclear. Mutations in the RAD51 paralogs are linked to heritable breast and ovarian cancers and the cancer-prone disease Fanconi anemia. In this work, we show that the RAD51 paralogs assemble into two distinct heterotetrameric complexes, RAD51B-RAD51C-RAD51D-XRCC2 (RAD51B complex) and XRCC3-RAD51C-RAD51D-XRCC2 (XRCC3 complex). The RAD51B complex promotes dynamic adenosine triphosphate hydrolysis-dependent assembly of RAD51 filaments, whereas the XRCC3 complex stably caps the 5' termini of RAD51 filaments to promote homologous pairing, as visualized by cryo-electron microscopy. Highly conserved across evolution, the XRCC3 complex reveals insights into RAD51 filament formation and capping during DNA repair and replication fork stabilization. | ||||||||||||||||||||||||
| 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 | 9svx.cif.gz | 679.9 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9svx.ent.gz | 446 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9svx.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/sv/9svx ftp://data.pdbj.org/pub/pdb/validation_reports/sv/9svx | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 55290MC ![]() 9svyC ![]() 9sw0C 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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要素
-DNA鎖 , 1種, 1分子 J
| #1: DNA鎖 | 分子量: 6027.858 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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-DNA repair protein ... , 5種, 9分子 CDBAEFGHI
| #2: タンパク質 | 分子量: 42244.609 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: RAD51C, RAD51L2発現宿主: ![]() 参照: UniProt: O43502 |
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| #3: タンパク質 | 分子量: 37899.781 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: XRCC3発現宿主: ![]() 参照: UniProt: O43542 |
| #4: タンパク質 | 分子量: 35084.254 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: RAD51D, RAD51L3発現宿主: ![]() 参照: UniProt: O75771 |
| #5: タンパク質 | 分子量: 31995.525 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: XRCC2発現宿主: ![]() 参照: UniProt: O43543 |
| #6: タンパク質 | 分子量: 37009.125 Da / 分子数: 5 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: RAD51, RAD51A, RECA発現宿主: ![]() 参照: UniProt: Q06609 |
-非ポリマー , 4種, 21分子 






| #7: 化合物 | ChemComp-ADP / | ||||
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| #8: 化合物 | ChemComp-MG / #9: 化合物 | ChemComp-ATP / #10: 化合物 | ChemComp-CA / |
-詳細
| 研究の焦点であるリガンドがあるか | Y |
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| 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: XRCC3-RAD51C-RAD51D-XRCC2 (XRCC3 complex) capping a RAD51 filament on single stranded DNA タイプ: COMPLEX / Entity ID: #1-#6 / 由来: RECOMBINANT | |||||||||||||||||||||||||||||||||||
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| 分子量 | 実験値: NO | |||||||||||||||||||||||||||||||||||
| 由来(天然) | 生物種: Homo sapiens (ヒト) | |||||||||||||||||||||||||||||||||||
| 由来(組換発現) | 生物種: ![]() 株: Sf9 | |||||||||||||||||||||||||||||||||||
| 緩衝液 | pH: 7.5 詳細: 25 mM HEPES-NaOH pH 7.5, 100 mM NaCl, 2.5 mM MgCl2, 2.5 mM CaCl2, 1 mM ATP, 0.25 mM TCEP | |||||||||||||||||||||||||||||||||||
| 緩衝液成分 |
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| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | |||||||||||||||||||||||||||||||||||
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 95 % / 凍結前の試料温度: 277 K |
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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: TFS KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: SPOT SCAN |
| 電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 130000 X / 最大 デフォーカス(公称値): 2700 nm / 最小 デフォーカス(公称値): 1000 nm |
| 試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
| 撮影 | 電子線照射量: 40.8 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING ONLY | |||||||||||||||||||||||||
| 粒子像の選択 | 選択した粒子像数: 12461490 | |||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 323691 / 対称性のタイプ: POINT | |||||||||||||||||||||||||
| 精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | |||||||||||||||||||||||||
| 原子変位パラメータ | Biso mean: 114.48 Å2 | |||||||||||||||||||||||||
| 拘束条件 |
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コントローラー
万見について




Homo sapiens (ヒト)
英国, 4件
引用




PDBj
















































FIELD EMISSION GUN