+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-6339 | |||||||||
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タイトル | Molecular architecture of the Ub-PCNA/Pol eta complex bound to DNA | |||||||||
マップデータ | Reconstruction of Ub-PCNA/Pol eta/DNA ternary complex | |||||||||
試料 |
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キーワード | Translesion synthesis (DNA修復) / DNA damage tolerance / Y-Family polymerase / PCNA monoubiquitination | |||||||||
機能・相同性 | 機能・相同性情報 positive regulation of deoxyribonuclease activity / dinucleotide insertion or deletion binding / PCNA-p21 complex / mitotic telomere maintenance via semi-conservative replication / purine-specific mismatch base pair DNA N-glycosylase activity / positive regulation of DNA-directed DNA polymerase activity / MutLalpha complex binding / 核ラミナ / Polymerase switching / Telomere C-strand (Lagging Strand) Synthesis ...positive regulation of deoxyribonuclease activity / dinucleotide insertion or deletion binding / PCNA-p21 complex / mitotic telomere maintenance via semi-conservative replication / purine-specific mismatch base pair DNA N-glycosylase activity / positive regulation of DNA-directed DNA polymerase activity / MutLalpha complex binding / 核ラミナ / Polymerase switching / Telomere C-strand (Lagging Strand) Synthesis / Processive synthesis on the lagging strand / PCNA complex / Processive synthesis on the C-strand of the telomere / Removal of the Flap Intermediate / Mismatch repair (MMR) directed by MSH2:MSH3 (MutSbeta) / Mismatch repair (MMR) directed by MSH2:MSH6 (MutSalpha) / Polymerase switching on the C-strand of the telomere / Transcription of E2F targets under negative control by DREAM complex / Removal of the Flap Intermediate from the C-strand / replisome / response to UV-C / response to L-glutamate / histone acetyltransferase binding / leading strand elongation / DNA synthesis involved in DNA repair / DNA polymerase processivity factor activity / error-free translesion synthesis / replication fork processing / G1/S-Specific Transcription / response to dexamethasone / nuclear replication fork / SUMOylation of DNA replication proteins / estrous cycle / PCNA-Dependent Long Patch Base Excision Repair / DNAミスマッチ修復 / cyclin-dependent protein kinase holoenzyme complex / cellular response to UV-C / pyrimidine dimer repair / DNA修復 / error-prone translesion synthesis / regulation of DNA repair / response to cadmium ion / DNA polymerase binding / base-excision repair, gap-filling / positive regulation of DNA repair / epithelial cell differentiation / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI / Gap-filling DNA repair synthesis and ligation in GG-NER / TP53 Regulates Transcription of Genes Involved in G2 Cell Cycle Arrest / DNA複製 / positive regulation of DNA replication / male germ cell nucleus / liver regeneration / nuclear estrogen receptor binding / Recognition of DNA damage by PCNA-containing replication complex / Termination of translesion DNA synthesis / Translesion Synthesis by POLH / response to radiation / HDR through Homologous Recombination (HRR) / Dual Incision in GG-NER / receptor tyrosine kinase binding / cellular response to hydrogen peroxide / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / cellular response to UV / cellular response to xenobiotic stimulus / response to estradiol / E3 ubiquitin ligases ubiquitinate target proteins / site of double-strand break / heart development / DNA複製 / damaged DNA binding / chromosome, telomeric region / DNAポリメラーゼ / DNA-directed DNA polymerase activity / nuclear body / DNA修復 / 中心体 / chromatin binding / クロマチン / protein-containing complex binding / negative regulation of transcription by RNA polymerase II / enzyme binding / extracellular exosome / 核質 / identical protein binding / metal ion binding / 細胞核 / 細胞質基質 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
手法 | 単粒子再構成法 / ネガティブ染色法 / 解像度: 22.0 Å | |||||||||
データ登録者 | Lau WCY / Li Y / Zhang Q / Huen MSY | |||||||||
引用 | ジャーナル: Sci Rep / 年: 2015 タイトル: Molecular architecture of the Ub-PCNA/Pol η complex bound to DNA. 著者: Wilson C Y Lau / Yinyin Li / Qinfen Zhang / Michael S Y Huen / 要旨: Translesion synthesis (TLS) is the mechanism by which DNA polymerases replicate through unrepaired DNA lesions. TLS is activated by monoubiquitination of the homotrimeric proliferating cell nuclear ...Translesion synthesis (TLS) is the mechanism by which DNA polymerases replicate through unrepaired DNA lesions. TLS is activated by monoubiquitination of the homotrimeric proliferating cell nuclear antigen (PCNA) at lysine-164, followed by the switch from replicative to specialized polymerases at DNA damage sites. Pol η belongs to the Y-Family of specialized polymerases that can efficiently bypass UV-induced lesions. Like other members of the Y-Family polymerases, its recruitment to the damaged sites is mediated by the interaction with monoubiquitinated PCNA (Ub-PCNA) via its ubiquitin-binding domain and non-canonical PCNA-interacting motif in the C-terminal region. The structural determinants underlying the direct recognition of Ub-PCNA by Pol η, or Y-Family polymerases in general, remain largely unknown. Here we report a structure of the Ub-PCNA/Pol η complex bound to DNA determined by single-particle electron microscopy (EM). The overall obtained structure resembles that of the editing PCNA/PolB complex. Analysis of the map revealed the conformation of ubiquitin that binds the C-terminal domain of Pol η. Our present study suggests that the Ub-PCNA/Pol η interaction requires the formation of a structured binding interface, which is dictated by the inherent flexibility of Ub-PCNA. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_6339.map.gz | 3.7 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-6339-v30.xml emd-6339.xml | 10.9 KB 10.9 KB | 表示 表示 | EMDBヘッダ |
画像 | 400_6339.gif 80_6339.gif | 43.4 KB 4 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-6339 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-6339 | HTTPS FTP |
-関連構造データ
-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 |
-マップ
ファイル | ダウンロード / ファイル: emd_6339.map.gz / 形式: CCP4 / 大きさ: 4.2 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Reconstruction of Ub-PCNA/Pol eta/DNA ternary complex | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 2.14 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : Ub-PCNA/Pol eta/DNA
全体 | 名称: Ub-PCNA/Pol eta/DNA |
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要素 |
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-超分子 #1000: Ub-PCNA/Pol eta/DNA
超分子 | 名称: Ub-PCNA/Pol eta/DNA / タイプ: sample / ID: 1000 / 詳細: The sample was monodisperse 集合状態: Monomeric catalytic core of Pol eta binds to one homotrimeric Ub-PCNA Number unique components: 2 |
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分子量 | 実験値: 200 KDa / 理論値: 200 KDa / 手法: Chemical crosslinking, SDS-PAGE |
-分子 #1: Monoubiquitinated PCNA
分子 | 名称: Monoubiquitinated PCNA / タイプ: protein_or_peptide / ID: 1 / 集合状態: trimer / 組換発現: Yes |
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由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: Human |
分子量 | 実験値: 120 KDa / 理論値: 120 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) / 組換株: BL21(DE3) |
-分子 #2: Pol eta
分子 | 名称: Pol eta / タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 集合状態: Monomer / 組換発現: Yes |
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由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: Human |
組換発現 | 生物種: Escherichia coli (大腸菌) / 組換株: RW644 / 組換プラスミド: pJM879 |
-実験情報
-構造解析
手法 | ネガティブ染色法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
濃度 | 0.1 mg/mL |
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緩衝液 | pH: 8 / 詳細: 50mM Tris-HCl, 5mM MgCl2 |
染色 | タイプ: NEGATIVE 詳細: Grids with adsorbed protein floated on two 20ul drops of 2% w/v uranyl acetate solution for 30 seconds |
グリッド | 詳細: Continuous carbon coated copper grids (Ted Pella), glow-discharged for 30 seconds |
凍結 | 凍結剤: NONE / 装置: OTHER |
-電子顕微鏡法
顕微鏡 | JEOL 2010 |
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電子線 | 加速電圧: 200 kV / 電子線源: LAB6 |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELDBright-field microscopy / 倍率(公称値): 50000 |
試料ステージ | 試料ホルダーモデル: SIDE ENTRY, EUCENTRIC |
日付 | 2014年11月12日 |
撮影 | カテゴリ: CCD フィルム・検出器のモデル: GATAN ULTRASCAN 4000 (4k x 4k) 平均電子線量: 18 e/Å2 |
-画像解析
CTF補正 | 詳細: Particles |
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最終 2次元分類 | クラス数: 227 |
最終 再構成 | アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 22.0 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: EMAN2 / 使用した粒子像数: 7330 |
-原子モデル構築 1
初期モデル | PDB ID: |
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ソフトウェア | 名称: Chimera |
精密化 | 空間: REAL / プロトコル: RIGID BODY FIT |
得られたモデル | PDB-3ja9: PDB-3jaa: |