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データを開く
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基本情報
| 登録情報 | ![]() | |||||||||
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| タイトル | RAD51 nucleoprotein filament on double-stranded abasic DNA | |||||||||
マップデータ | local anisotropy sharpened map | |||||||||
試料 |
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キーワード | Homologous recombination / DNA replication / abasic DNA / DNA BINDING PROTEIN | |||||||||
| 機能・相同性 | 機能・相同性情報presynaptic intermediate filament cytoskeleton / response to glucoside / 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 / DNA strand invasion ...presynaptic intermediate filament cytoskeleton / response to glucoside / 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 / DNA strand invasion / 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 / Impaired BRCA2 binding to PALB2 / telomere maintenance via recombination / reciprocal meiotic recombination / single-stranded DNA helicase activity / HDR through Single Strand Annealing (SSA) / ATP-dependent DNA damage sensor activity / regulation of double-strand break repair via homologous recombination / 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 / replication fork processing / Presynaptic phase of homologous DNA pairing and strand exchange / response to X-ray / ATP-dependent activity, acting on DNA / interstrand cross-link repair / condensed chromosome / DNA polymerase binding / condensed nuclear chromosome / cellular response to ionizing radiation / male germ cell nucleus / meiotic cell cycle / 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 / response to toxic substance / single-stranded DNA binding / site of double-strand break / double-stranded DNA binding / DNA recombination / chromosome, telomeric region / response to xenobiotic stimulus / mitochondrial matrix / DNA repair / DNA damage response / chromatin binding / centrosome / chromatin / nucleolus / perinuclear region of cytoplasm / enzyme binding / protein-containing complex / mitochondrion / nucleoplasm / ATP binding / identical protein binding / nucleus / cytoplasm / cytosol 類似検索 - 分子機能 | |||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||
| 手法 | らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度: 3.4 Å | |||||||||
データ登録者 | Appleby R / Pellegrini L | |||||||||
| 資金援助 | 英国, 1件
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引用 | ジャーナル: Mol Cell / 年: 2024タイトル: RAD51 protects abasic sites to prevent replication fork breakage. 著者: Yodhara Wijesekara Hanthi / Miguel Angel Ramirez-Otero / Robert Appleby / Anna De Antoni / Luay Joudeh / Vincenzo Sannino / Salli Waked / Alessandra Ardizzoia / Viviana Barra / Daniele ...著者: Yodhara Wijesekara Hanthi / Miguel Angel Ramirez-Otero / Robert Appleby / Anna De Antoni / Luay Joudeh / Vincenzo Sannino / Salli Waked / Alessandra Ardizzoia / Viviana Barra / Daniele Fachinetti / Luca Pellegrini / Vincenzo Costanzo / ![]() 要旨: Abasic sites are DNA lesions repaired by base excision repair. Cleavage of unrepaired abasic sites in single-stranded DNA (ssDNA) can lead to chromosomal breakage during DNA replication. How rupture ...Abasic sites are DNA lesions repaired by base excision repair. Cleavage of unrepaired abasic sites in single-stranded DNA (ssDNA) can lead to chromosomal breakage during DNA replication. How rupture of abasic DNA is prevented remains poorly understood. Here, using cryoelectron microscopy (cryo-EM), Xenopus laevis egg extracts, and human cells, we show that RAD51 nucleofilaments specifically recognize and protect abasic sites, which increase RAD51 association rate to DNA. In the absence of BRCA2 or RAD51, abasic sites accumulate as a result of DNA base methylation, oxidation, and deamination, inducing abasic ssDNA gaps that make replicating DNA fibers sensitive to APE1. RAD51 assembled on abasic DNA prevents abasic site cleavage by the MRE11-RAD50 complex, suppressing replication fork breakage triggered by an excess of abasic sites or POLθ polymerase inhibition. Our study highlights the critical role of BRCA2 and RAD51 in safeguarding against unrepaired abasic sites in DNA templates stemming from base alterations, ensuring genomic stability. | |||||||||
| 履歴 |
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構造の表示
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_19051.map.gz | 28.3 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-19051-v30.xml emd-19051.xml | 26 KB 26 KB | 表示 表示 | EMDBヘッダ |
| 画像 | emd_19051.png | 85.6 KB | ||
| Filedesc metadata | emd-19051.cif.gz | 7.7 KB | ||
| その他 | emd_19051_half_map_1.map.gz emd_19051_half_map_2.map.gz | 23.4 MB 23.4 MB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-19051 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-19051 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 8rcfMC ![]() 8rcdC C: 同じ文献を引用 ( M: このマップから作成された原子モデル |
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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
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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| 「今月の分子」の関連する項目 |
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マップ
| ファイル | ダウンロード / ファイル: emd_19051.map.gz / 形式: CCP4 / 大きさ: 30.5 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| 注釈 | local anisotropy sharpened map | ||||||||||||||||||||||||||||||||||||
| 投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
| ボクセルのサイズ | X=Y=Z: 1.304 Å | ||||||||||||||||||||||||||||||||||||
| 密度 |
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| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
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-添付データ
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試料の構成要素
-全体 : RAD51 nucleoprotein filament on double-stranded abasic DNA
| 全体 | 名称: RAD51 nucleoprotein filament on double-stranded abasic DNA |
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| 要素 |
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-超分子 #1: RAD51 nucleoprotein filament on double-stranded abasic DNA
| 超分子 | 名称: RAD51 nucleoprotein filament on double-stranded abasic DNA タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#3 |
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-超分子 #2: DNA repair protein
| 超分子 | 名称: DNA repair protein / タイプ: complex / ID: 2 / 親要素: 1 / 含まれる分子: #1 |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
-超分子 #3: DNA
| 超分子 | 名称: DNA / タイプ: complex / ID: 3 / 親要素: 1 / 含まれる分子: #2-#3 |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
-分子 #1: DNA repair protein RAD51 homolog 1
| 分子 | 名称: DNA repair protein RAD51 homolog 1 / タイプ: protein_or_peptide / ID: 1 / コピー数: 8 / 光学異性体: LEVO |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 37.009125 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: MAMQMQLEAN ADTSVEEESF GPQPISRLEQ CGINANDVKK LEEAGFHTVE AVAYAPKKEL INIKGISEAK ADKILAEAAK LVPMGFTTA TEFHQRRSEI IQITTGSKEL DKLLQGGIET GSITEMFGEF RTGKTQICHT LAVTCQLPID RGGGEGKAMY I DTEGTFRP ...文字列: MAMQMQLEAN ADTSVEEESF GPQPISRLEQ CGINANDVKK LEEAGFHTVE AVAYAPKKEL INIKGISEAK ADKILAEAAK LVPMGFTTA TEFHQRRSEI IQITTGSKEL DKLLQGGIET GSITEMFGEF RTGKTQICHT LAVTCQLPID RGGGEGKAMY I DTEGTFRP ERLLAVAERY GLSGSDVLDN VAYARAFNTD HQTQLLYQAS AMMVESRYAL LIVDSATALY RTDYSGRGEL SA RQMHLAR FLRMLLRLAD EFGVAVVITN QVVAQVDGAA MFAADPKKPI GGNIIAHAST TRLYLRKGRG ETRICKIYDS PCL PEAEAM FAINADGVGD AKD UniProtKB: DNA repair protein RAD51 homolog 1 |
-分子 #2: DNA (5'-D(P*TP*GP*(3DR)P*TP*GP*(3DR)P*TP*GP*(3DR)P*TP*GP*(3DR)P*T...
| 分子 | 名称: DNA (5'-D(P*TP*GP*(3DR)P*TP*GP*(3DR)P*TP*GP*(3DR)P*TP*GP*(3DR)P*TP*GP*(3DR)P*TP*GP*(3DR)P*TP*GP*(3DR)P*TP*G)-3') タイプ: dna / ID: 2 詳細: 3DR refers to an abasic nucleotide. The ribose of the abasic nucleotide is a tetrahydrofurane lacking the hydroxyl group that would naturally be present on position C1 after base hydrolysis. ...詳細: 3DR refers to an abasic nucleotide. The ribose of the abasic nucleotide is a tetrahydrofurane lacking the hydroxyl group that would naturally be present on position C1 after base hydrolysis. The sequence consists of 7 x TG(3DR) + TG, as helically averaged version of the DNA sequence: GGTAT(3DR)CA(3DR)TG(3DR)TA(3DR)AC(3DR)TGAGC, which contains 5 central, equally spaced abasic sites flanked by 5 nucleotides. コピー数: 1 / 分類: DNA |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 6.282902 KDa |
| 配列 | 文字列: (DT)(DG)(3DR)(DT)(DG)(3DR)(DT)(DG)(3DR)(DT) (DG)(3DR)(DT)(DG)(3DR)(DT)(DG)(3DR) (DT) (DG)(3DR)(DT)(DG) |
-分子 #3: DNA (5'-D(P*CP*AP*CP*CP*AP*CP*CP*AP*CP*CP*AP*CP*CP*AP*CP*CP*AP*CP...
| 分子 | 名称: DNA (5'-D(P*CP*AP*CP*CP*AP*CP*CP*AP*CP*CP*AP*CP*CP*AP*CP*CP*AP*CP*CP*AP*CP*CP*A)-3') タイプ: dna / ID: 3 詳細: The sequence consists of 7 x CAC + CA, as helically averaged version of the DNA sequence: GCTCACGTCTACCACTGCATACC コピー数: 1 / 分類: DNA |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 6.798423 KDa |
| 配列 | 文字列: (DC)(DA)(DC)(DC)(DA)(DC)(DC)(DA)(DC)(DC) (DA)(DC)(DC)(DA)(DC)(DC)(DA)(DC)(DC)(DA) (DC)(DC)(DA) |
-分子 #4: CALCIUM ION
| 分子 | 名称: CALCIUM ION / タイプ: ligand / ID: 4 / コピー数: 16 / 式: CA |
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| 分子量 | 理論値: 40.078 Da |
-分子 #5: ADENOSINE-5'-TRIPHOSPHATE
| 分子 | 名称: ADENOSINE-5'-TRIPHOSPHATE / タイプ: ligand / ID: 5 / コピー数: 8 / 式: ATP |
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| 分子量 | 理論値: 507.181 Da |
| Chemical component information | ![]() ChemComp-ATP: |
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
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解析 | らせん対称体再構成法 |
| 試料の集合状態 | filament |
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試料調製
| 緩衝液 | pH: 7.5 |
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| グリッド | モデル: UltrAuFoil R1.2/1.3 / 材質: GOLD / メッシュ: 300 / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 60 sec. |
| 凍結 | 凍結剤: ETHANE / 装置: FEI VITROBOT MARK IV |
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電子顕微鏡法
| 顕微鏡 | FEI TITAN KRIOS |
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| 撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 実像数: 10084 / 平均露光時間: 1.2 sec. / 平均電子線量: 52.968 e/Å2 詳細: Images were collected in movie mode at 44 frames per movie |
| 電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | 倍率(補正後): 130000 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.6 µm / 最小 デフォーカス(公称値): 0.8 µm |
| 試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
ムービー
コントローラー
万見について




キーワード
Homo sapiens (ヒト)
データ登録者
英国, 1件
引用















X (Sec.)
Y (Row.)
Z (Col.)






















解析
FIELD EMISSION GUN

