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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: 7nv0 | ||||||
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タイトル | Human Pol Kappa holoenzyme with wt PCNA | ||||||
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![]() | REPLICATION / Translesion synthesis / TLS | ||||||
機能・相同性 | ![]() 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 / nuclear lamina / MutLalpha complex binding / positive regulation of DNA-directed DNA polymerase activity / 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 / nuclear lamina / MutLalpha complex binding / positive regulation of DNA-directed DNA polymerase activity / Polymerase switching / Telomere C-strand (Lagging Strand) Synthesis / Processive synthesis on the lagging strand / PCNA complex / Removal of the Flap Intermediate / Processive synthesis on the C-strand of the telomere / Mismatch repair (MMR) directed by MSH2:MSH3 (MutSbeta) / Polymerase switching on the C-strand of the telomere / Mismatch repair (MMR) directed by MSH2:MSH6 (MutSalpha) / Transcription of E2F targets under negative control by DREAM complex / Removal of the Flap Intermediate from the C-strand / replisome / nucleotide-excision repair, DNA gap filling / response to L-glutamate / histone acetyltransferase binding / DNA polymerase processivity factor activity / positive regulation of DNA replication / G1/S-Specific Transcription / replication fork processing / response to dexamethasone / leading strand elongation / nuclear replication fork / cyclin-dependent protein kinase holoenzyme complex / SUMOylation of DNA replication proteins / estrous cycle / epithelial cell differentiation / PCNA-Dependent Long Patch Base Excision Repair / positive regulation of DNA repair / mismatch repair / male germ cell nucleus / error-prone translesion synthesis / translesion synthesis / response to cadmium ion / DNA polymerase binding / liver regeneration / Translesion synthesis by REV1 / Translesion synthesis by POLK / base-excision repair, gap-filling / 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 / replication fork / nuclear estrogen receptor binding / Recognition of DNA damage by PCNA-containing replication complex / Termination of translesion DNA synthesis / Translesion Synthesis by POLH / 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 xenobiotic stimulus / cellular response to UV / E3 ubiquitin ligases ubiquitinate target proteins / response to estradiol / heart development / chromosome, telomeric region / DNA replication / damaged DNA binding / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / nuclear body / DNA repair / chromatin binding / centrosome / DNA damage response / chromatin / protein-containing complex binding / enzyme binding / negative regulation of transcription by RNA polymerase II / extracellular exosome / nucleoplasm / identical protein binding / nucleus / metal ion binding 類似検索 - 分子機能 | ||||||
生物種 | ![]() 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: 3.4 Å | ||||||
![]() | Lancey, C. / De Biasio, A. / Hamdan, S.M. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-EM structure of human Pol κ bound to DNA and mono-ubiquitylated PCNA. 著者: Claudia Lancey / Muhammad Tehseen / Souvika Bakshi / Matthew Percival / Masateru Takahashi / Mohamed A Sobhy / Vlad S Raducanu / Kerry Blair / Frederick W Muskett / Timothy J Ragan / Ramon ...著者: Claudia Lancey / Muhammad Tehseen / Souvika Bakshi / Matthew Percival / Masateru Takahashi / Mohamed A Sobhy / Vlad S Raducanu / Kerry Blair / Frederick W Muskett / Timothy J Ragan / Ramon Crehuet / Samir M Hamdan / Alfredo De Biasio / ![]() ![]() ![]() 要旨: Y-family DNA polymerase κ (Pol κ) can replicate damaged DNA templates to rescue stalled replication forks. Access of Pol κ to DNA damage sites is facilitated by its interaction with the ...Y-family DNA polymerase κ (Pol κ) can replicate damaged DNA templates to rescue stalled replication forks. Access of Pol κ to DNA damage sites is facilitated by its interaction with the processivity clamp PCNA and is regulated by PCNA mono-ubiquitylation. Here, we present cryo-EM reconstructions of human Pol κ bound to DNA, an incoming nucleotide, and wild type or mono-ubiquitylated PCNA (Ub-PCNA). In both reconstructions, the internal PIP-box adjacent to the Pol κ Polymerase-Associated Domain (PAD) docks the catalytic core to one PCNA protomer in an angled orientation, bending the DNA exiting the Pol κ active site through PCNA, while Pol κ C-terminal domain containing two Ubiquitin Binding Zinc Fingers (UBZs) is invisible, in agreement with disorder predictions. The ubiquitin moieties are partly flexible and extend radially away from PCNA, with the ubiquitin at the Pol κ-bound protomer appearing more rigid. Activity assays suggest that, when the internal PIP-box interaction is lost, Pol κ is retained on DNA by a secondary interaction between the UBZs and the ubiquitins flexibly conjugated to PCNA. Our data provide a structural basis for the recruitment of a Y-family TLS polymerase to sites of DNA damage. | ||||||
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: ![]() ![]() |
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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 | ![]() | 246.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 185.2 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1013.3 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1 MB | 表示 | |
XML形式データ | ![]() | 41.6 KB | 表示 | |
CIF形式データ | ![]() | 64.2 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 12601MC ![]() 7nv1C 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 | |
電子顕微鏡画像生データ | ![]() Data size: 4.2 TB Data #1: Multiframe micrographs of human Pol κ complexed with wt PCNA and DNA, collection 1 [micrographs - multiframe] Data #2: Multiframe micrographs of human Pol κ complexed with wt PCNA and DNA, collection 2 [micrographs - multiframe]) |
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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
#1: タンパク質 | 分子量: 98952.695 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() | ||||||||
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#2: タンパク質 | 分子量: 29088.061 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #3: DNA鎖 | | 分子量: 7665.987 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) #4: DNA鎖 | | 分子量: 11677.539 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) #5: 化合物 | ChemComp-TTP / | 研究の焦点であるリガンドがあるか | 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 |
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分子量 | 値: 0.206 MDa / 実験値: NO | |||||||||||||||||||||||||||||||||||
由来(天然) |
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由来(組換発現) |
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緩衝液 | pH: 7.5 | |||||||||||||||||||||||||||||||||||
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 | |||||||||||||||||||||||||||||||||||
試料支持 | 詳細: 40 mA / グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: UltrAuFoil R1.2/1.3 | |||||||||||||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 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: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 81000 X / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 700 nm / Cs: 2.7 mm / C2レンズ絞り径: 50 µm / アライメント法: ZEMLIN TABLEAU |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER 最高温度: 77 K / 最低温度: 77 K |
撮影 | 平均露光時間: 5 sec. / 電子線照射量: 47 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 撮影したグリッド数: 2 / 実像数: 11114 / 詳細: Super resolution mode & AFIS used |
電子光学装置 | エネルギーフィルター名称: GIF Bioquantum / エネルギーフィルタースリット幅: 20 eV |
画像スキャン | 横: 11520 / 縦: 8184 |
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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 AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 12741853 | ||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 254040 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT |