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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: 7e8i | |||||||||||||||||||||||||||
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| タイトル | Structural insight into BRCA1-BARD1 complex recruitment to damaged chromatin | |||||||||||||||||||||||||||
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キーワード | NUCLEAR PROTEIN / BRCA1 / nucleosome / DNA damage / chromatin / BARD1 | |||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報negative regulation of mRNA 3'-end processing / histone H2AK127 ubiquitin ligase activity / histone H2AK129 ubiquitin ligase activity / Defective DNA double strand break response due to BRCA1 loss of function / Defective DNA double strand break response due to BARD1 loss of function / BRCA1-BARD1 complex / BRCA1-B complex / BRCA1-A complex / BRCA1-C complex / ubiquitin-modified histone reader activity ...negative regulation of mRNA 3'-end processing / histone H2AK127 ubiquitin ligase activity / histone H2AK129 ubiquitin ligase activity / Defective DNA double strand break response due to BRCA1 loss of function / Defective DNA double strand break response due to BARD1 loss of function / BRCA1-BARD1 complex / BRCA1-B complex / BRCA1-A complex / BRCA1-C complex / ubiquitin-modified histone reader activity / regulation of phosphorylation / DNA strand resection involved in replication fork processing / nuclear ubiquitin ligase complex / homologous recombination / tissue homeostasis / mitotic G2/M transition checkpoint / negative regulation of protein export from nucleus / regulation of DNA damage checkpoint / Impaired BRCA2 binding to PALB2 / protein K6-linked ubiquitination / 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) / Resolution of D-loop Structures through Holliday Junction Intermediates / Impaired BRCA2 binding to RAD51 / negative regulation of cell cycle / Presynaptic phase of homologous DNA pairing and strand exchange / ubiquitin ligase complex / regulation of DNA repair / cellular response to ionizing radiation / Nonhomologous End-Joining (NHEJ) / RING-type E3 ubiquitin transferase / G2/M DNA damage checkpoint / HDR through Homologous Recombination (HRR) / kinase binding / Metalloprotease DUBs / cytoplasmic ribonucleoprotein granule / ubiquitin-protein transferase activity / positive regulation of protein catabolic process / structural constituent of chromatin / UCH proteinases / nucleosome / heterochromatin formation / nucleosome assembly / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / Processing of DNA double-strand break ends / Regulation of TP53 Activity through Phosphorylation / mitochondrial outer membrane / regulation of cell cycle / nuclear speck / protein ubiquitination / positive regulation of apoptotic process / chromatin remodeling / protein heterodimerization activity / DNA repair / DNA damage response / regulation of transcription by RNA polymerase II / negative regulation of apoptotic process / protein homodimerization activity / DNA binding / RNA binding / zinc ion binding / nucleoplasm / nucleus / cytoplasm 類似検索 - 分子機能 | |||||||||||||||||||||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||||||||||||||||||||
| 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: 3.1 Å | |||||||||||||||||||||||||||
データ登録者 | Dai, Y. / Dai, L. / Zhou, Z. | |||||||||||||||||||||||||||
| 資金援助 | 中国, 8件
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引用 | ジャーナル: Mol Cell / 年: 2021タイトル: Structural insight into BRCA1-BARD1 complex recruitment to damaged chromatin. 著者: Linchang Dai / Yaxin Dai / Jinhua Han / Yan Huang / Longge Wang / Jun Huang / Zheng Zhou / ![]() 要旨: The BRCA1-BARD1 complex directs the DNA double-strand break (DSB) repair pathway choice to error-free homologous recombination (HR) during the S-G2 stages. Targeting BRCA1-BARD1 to DSB-proximal sites ...The BRCA1-BARD1 complex directs the DNA double-strand break (DSB) repair pathway choice to error-free homologous recombination (HR) during the S-G2 stages. Targeting BRCA1-BARD1 to DSB-proximal sites requires BARD1-mediated nucleosome interaction and histone mark recognition. Here, we report the cryo-EM structure of BARD1 bound to a ubiquitinated nucleosome core particle (NCP) at 3.1 Å resolution and illustrate how BARD1 simultaneously recognizes the DNA damage-induced mark H2AK15ub and DNA replication-associated mark H4K20me0 on the nucleosome. In vitro and in vivo analyses reveal that the BARD1-NCP complex is stabilized by BARD1-nucleosome interaction, BARD1-ubiquitin interaction, and BARD1 ARD domain-BARD1 BRCT domain interaction, and abrogating these interactions is detrimental to HR activity. We further identify multiple disease-causing BARD1 mutations that disrupt BARD1-NCP interactions and hence impair HR. Together, this study elucidates the mechanism of BRCA1-BARD1 complex recruitment and retention by DSB-flanking nucleosomes and sheds important light on cancer therapeutic avenues. | |||||||||||||||||||||||||||
| 履歴 |
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構造の表示
| ムービー |
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| 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 | 7e8i.cif.gz | 356.4 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb7e8i.ent.gz | 271 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 7e8i.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/e8/7e8i ftp://data.pdbj.org/pub/pdb/validation_reports/e8/7e8i | HTTPS FTP |
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-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
-DNA鎖 , 2種, 2分子 JI
| #1: DNA鎖 | 分子量: 44992.648 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: ![]() |
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| #2: DNA鎖 | 分子量: 44521.367 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: ![]() |
-タンパク質 , 6種, 10分子 AEBFCGDHKL
| #3: タンパク質 | 分子量: 15303.930 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) 遺伝子: XELAEV_18002543mg / 発現宿主: ![]() #4: タンパク質 | 分子量: 11263.231 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) 発現宿主: ![]() #5: タンパク質 | 分子量: 13952.205 Da / 分子数: 2 / Mutation: K16C / 由来タイプ: 組換発現 由来: (組換発現) 遺伝子: h2ac14.L, h2ac14, hist1h2aj, LOC494591, XELAEV_18003602mg 発現宿主: ![]() #6: タンパク質 | 分子量: 13524.752 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) 発現宿主: ![]() #7: タンパク質 | | 分子量: 40145.836 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: BARD1 / 発現宿主: ![]() #8: タンパク質 | | 分子量: 9755.145 Da / 分子数: 1 / Mutation: G76C / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: UBB / 発現宿主: ![]() |
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-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 |
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| 由来(天然) |
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| 由来(組換発現) |
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| 緩衝液 | pH: 7.5 | ||||||||||||||||||||||||||||||
| 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: Talos Arctica / 画像提供: FEI Company |
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| 顕微鏡 | モデル: FEI TALOS ARCTICA |
| 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 |
| 撮影 | 電子線照射量: 50 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: 1.17.1_3660: / 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: 3.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 168313 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 拘束条件 |
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ムービー
コントローラー
万見について




Homo sapiens (ヒト)
中国, 8件
引用
UCSF Chimera








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