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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: 9b8t | |||||||||
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タイトル | Human polymerase epsilon bound to PCNA and DNA in the nucleotide bound state | |||||||||
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![]() | DNA Binding Protein/DNA / DNA polymerase / DNA / DNA Binding Protein-DNA complex | |||||||||
機能・相同性 | ![]() epsilon DNA polymerase complex / 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 / positive regulation of DNA-directed DNA polymerase activity / Polymerase switching / MutLalpha complex binding ...epsilon DNA polymerase complex / 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 / positive regulation of DNA-directed DNA polymerase activity / Polymerase switching / MutLalpha complex binding / 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 / Polymerase switching on the C-strand of the telomere / Mismatch repair (MMR) directed by MSH2:MSH3 (MutSbeta) / Mismatch repair (MMR) directed by MSH2:MSH6 (MutSalpha) / Removal of the Flap Intermediate from the C-strand / Transcription of E2F targets under negative control by DREAM complex / replisome / response to L-glutamate / response to dexamethasone / DNA synthesis involved in DNA repair / histone acetyltransferase binding / DNA polymerase processivity factor activity / leading strand elongation / G1/S-Specific Transcription / replication fork processing / nuclear replication fork / SUMOylation of DNA replication proteins / PCNA-Dependent Long Patch Base Excision Repair / translesion synthesis / mismatch repair / estrous cycle / response to cadmium ion / cyclin-dependent protein kinase holoenzyme complex / Translesion synthesis by REV1 / Translesion synthesis by POLK / base-excision repair, gap-filling / DNA polymerase binding / Translesion synthesis by POLI / Gap-filling DNA repair synthesis and ligation in GG-NER / epithelial cell differentiation / positive regulation of DNA repair / TP53 Regulates Transcription of Genes Involved in G2 Cell Cycle Arrest / male germ cell nucleus / positive regulation of DNA replication / Termination of translesion DNA synthesis / replication fork / nuclear estrogen receptor binding / Recognition of DNA damage by PCNA-containing replication complex / Translesion Synthesis by POLH / liver regeneration / HDR through Homologous Recombination (HRR) / Dual Incision in GG-NER / receptor tyrosine kinase binding / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / DNA-templated DNA replication / cellular response to hydrogen peroxide / cellular response to UV / cellular response to xenobiotic stimulus / E3 ubiquitin ligases ubiquitinate target proteins / response to estradiol / chromatin organization / heart development / 4 iron, 4 sulfur cluster binding / damaged DNA binding / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / chromosome, telomeric region / nuclear body / nucleotide binding / centrosome / chromatin binding / chromatin / protein-containing complex binding / enzyme binding / negative regulation of transcription by RNA polymerase II / DNA binding / extracellular exosome / zinc ion binding / nucleoplasm / identical protein binding / nucleus 類似検索 - 分子機能 | |||||||||
生物種 | ![]() DNA molecule (その他) | |||||||||
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: 2.95 Å | |||||||||
![]() | Wang, F. / He, Q. / Li, H. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structures of the human leading strand Polε-PCNA holoenzyme. 著者: Qing He / Feng Wang / Nina Y Yao / Michael E O'Donnell / Huilin Li / ![]() 要旨: In eukaryotes, the leading strand DNA is synthesized by Polε and the lagging strand by Polδ. These replicative polymerases have higher processivity when paired with the DNA clamp PCNA. While the ...In eukaryotes, the leading strand DNA is synthesized by Polε and the lagging strand by Polδ. These replicative polymerases have higher processivity when paired with the DNA clamp PCNA. While the structure of the yeast Polε catalytic domain has been determined, how Polε interacts with PCNA is unknown in any eukaryote, human or yeast. Here we report two cryo-EM structures of human Polε-PCNA-DNA complex, one in an incoming nucleotide bound state and the other in a nucleotide exchange state. The structures reveal an unexpected three-point interface between the Polε catalytic domain and PCNA, with the conserved PIP (PCNA interacting peptide)-motif, the unique P-domain, and the thumb domain each interacting with a different protomer of the PCNA trimer. We propose that the multi-point interface prevents other PIP-containing factors from recruiting to PCNA while PCNA functions with Polε. Comparison of the two states reveals that the finger domain pivots around the [4Fe-4S] cluster-containing tip of the P-domain to regulate nucleotide exchange and incoming nucleotide binding. | |||||||||
履歴 |
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構造の表示
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 | ![]() | 444.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 338.9 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 | ![]() | 1.4 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.4 MB | 表示 | |
XML形式データ | ![]() | 68.8 KB | 表示 | |
CIF形式データ | ![]() | 102.4 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 | ![]() 44358MC ![]() 9b8sC 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 ![]() |
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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
-タンパク質 , 2種, 4分子 ABCD
#1: タンパク質 | 分子量: 261782.266 Da / 分子数: 1 / 変異: D275A, E277A / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: Insect cell expression vector pTIE1 (その他) 参照: UniProt: Q9Y5S4, DNA-directed DNA polymerase |
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#2: タンパク質 | 分子量: 28795.752 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: Insect cell expression vector pTIE1 (その他) 参照: UniProt: P12004 |
-DNA鎖 , 2種, 2分子 PT
#3: DNA鎖 | 分子量: 10823.965 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) DNA molecule (その他) |
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#4: DNA鎖 | 分子量: 18136.680 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) DNA molecule (その他) |
-非ポリマー , 3種, 3分子 




#5: 化合物 | ChemComp-TTP / |
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#6: 化合物 | ChemComp-MG / |
#7: 化合物 | ChemComp-SF4 / |
-詳細
研究の焦点であるリガンドがあるか | Y |
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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 | 名称: The DNA bound Pol epsilon and PCNA complex / タイプ: COMPLEX / Entity ID: #1-#4 / 由来: RECOMBINANT | ||||||||||||||||||||
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分子量 | 値: 0.45 MDa / 実験値: YES | ||||||||||||||||||||
由来(天然) | 生物種: ![]() | ||||||||||||||||||||
由来(組換発現) | 生物種: Insect cell expression vector pTIE1 (その他) | ||||||||||||||||||||
緩衝液 | pH: 7.5 | ||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.75 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 400 divisions/in. / グリッドのタイプ: Quantifoil 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: 280 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 / 最大 デフォーカス(公称値): 1800 nm / 最小 デフォーカス(公称値): 1200 nm |
撮影 | 電子線照射量: 60 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k 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 AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 2.95 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 320111 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL | ||||||||||||||||||||||||
拘束条件 |
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