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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: 8yjs | |||||||||||||||||||||||||||||||||||||||
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| タイトル | Structure of the human endogenous PCNA-FEN1 complex - State E | |||||||||||||||||||||||||||||||||||||||
要素 |
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キーワード | DNA BINDING PROTEIN/DNA / Flap endonuclease 1 / endogenous DNA / PCNA / DNA BINDING PROTEIN-DNA complex | |||||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報flap endonuclease activity / positive regulation of sister chromatid cohesion / double-stranded DNA exodeoxyribonuclease activity / telomere maintenance via semi-conservative replication / dinucleotide insertion or deletion binding / PCNA-p21 complex / mitotic telomere maintenance via semi-conservative replication / 5'-flap endonuclease activity / purine-specific mismatch base pair DNA N-glycosylase activity / nuclear lamina ...flap endonuclease activity / positive regulation of sister chromatid cohesion / double-stranded DNA exodeoxyribonuclease activity / telomere maintenance via semi-conservative replication / dinucleotide insertion or deletion binding / PCNA-p21 complex / mitotic telomere maintenance via semi-conservative replication / 5'-flap endonuclease activity / purine-specific mismatch base pair DNA N-glycosylase activity / nuclear lamina / Polymerase switching / Processive synthesis on the lagging strand / MutLalpha complex binding / PCNA complex / DNA replication, removal of RNA primer / Telomere C-strand (Lagging Strand) Synthesis / Removal of the Flap Intermediate / UV protection / HDR through MMEJ (alt-NHEJ) / Mismatch repair (MMR) directed by MSH2:MSH3 (MutSbeta) / Mismatch repair (MMR) directed by MSH2:MSH6 (MutSalpha) / Transcription of E2F targets under negative control by DREAM complex / Polymerase switching on the C-strand of the telomere / Processive synthesis on the C-strand of the telomere / 5'-3' exonuclease activity / replisome / Removal of the Flap Intermediate from the C-strand / response to L-glutamate / exonuclease activity / response to dexamethasone / histone acetyltransferase binding / Early Phase of HIV Life Cycle / leading strand elongation / G1/S-Specific Transcription / DNA polymerase processivity factor activity / nuclear replication fork / replication fork processing / SUMOylation of DNA replication proteins / POLB-Dependent Long Patch Base Excision Repair / PCNA-Dependent Long Patch Base Excision Repair / response to cadmium ion / estrous cycle / mismatch repair / cyclin-dependent protein kinase holoenzyme complex / translesion synthesis / base-excision repair, gap-filling / DNA polymerase binding / epithelial cell differentiation / liver regeneration / TP53 Regulates Transcription of Genes Involved in G2 Cell Cycle Arrest / positive regulation of DNA replication / nuclear estrogen receptor binding / positive regulation of DNA repair / replication fork / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI / male germ cell nucleus / Gap-filling DNA repair synthesis and ligation in GG-NER / Termination of translesion DNA synthesis / Translesion Synthesis by POLH / Recognition of DNA damage by PCNA-containing replication complex / receptor tyrosine kinase binding / double-strand break repair via homologous recombination / HDR through Homologous Recombination (HRR) / cellular response to xenobiotic stimulus / Dual Incision in GG-NER / RNA-DNA hybrid ribonuclease activity / cellular response to hydrogen peroxide / memory / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / cellular response to UV / response to estradiol / double-strand break repair / manganese ion binding / E3 ubiquitin ligases ubiquitinate target proteins / heart development / chromatin organization / double-stranded DNA binding / endonuclease activity / damaged DNA binding / 加水分解酵素; エステル加水分解酵素 / chromosome, telomeric region / DNA replication / nuclear body / DNA repair / chromatin binding / centrosome / chromatin / protein-containing complex binding / nucleolus / magnesium ion binding / enzyme binding / negative regulation of transcription by RNA polymerase II / protein-containing complex / mitochondrion / DNA binding / extracellular exosome / nucleoplasm 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: 3.55 Å | |||||||||||||||||||||||||||||||||||||||
データ登録者 | Tian, Y. / Gao, N. | |||||||||||||||||||||||||||||||||||||||
| 資金援助 | 中国, 1件
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引用 | ジャーナル: EMBO J / 年: 2025タイトル: Structural insight into Okazaki fragment maturation mediated by PCNA-bound FEN1 and RNaseH2. 著者: Yuhui Tian / Ningning Li / Qing Li / Ning Gao / ![]() 要旨: PCNA is a master coordinator of many DNA-metabolic events. During DNA replication, the maturation of Okazaki fragments involves at least four DNA enzymes, all of which contain PCNA-interacting motifs. ...PCNA is a master coordinator of many DNA-metabolic events. During DNA replication, the maturation of Okazaki fragments involves at least four DNA enzymes, all of which contain PCNA-interacting motifs. However, the temporal relationships and functional modulations between these PCNA-binding proteins are unclear. Here, we developed a strategy to purify endogenous PCNA-containing complexes from native chromatin, and characterized their structures using cryo-EM. Two structurally resolved classes (PCNA-FEN1 and PCNA-FEN1-RNaseH2 complexes) have captured a series of 3D snapshots for the primer-removal steps of Okazaki fragment maturation. These structures show that product release from FEN1 is a rate-liming step. Furthermore, both FEN1 and RNaseH2 undergo continuous conformational changes on PCNA that result in constant fluctuations in the bending angle of substrate DNA at the nick site, implying that these enzymes could regulate each other through conformational modulation of the bound DNA. The structures of the PCNA-FEN1-RNaseH2 complex confirm the toolbelt function of PCNA and suggests a potential unrecognized role of RNaseH2, as a dsDNA binding protein, in promoting the 5'-flap cleaving activity of FEN1. | |||||||||||||||||||||||||||||||||||||||
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構造の表示
| 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 | 8yjs.cif.gz | 229.6 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8yjs.ent.gz | 181 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8yjs.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/yj/8yjs ftp://data.pdbj.org/pub/pdb/validation_reports/yj/8yjs | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 39348MC ![]() 8yjhC ![]() 8yjlC ![]() 8yjqC ![]() 8yjrC ![]() 8yjuC ![]() 8yjvC ![]() 8yjwC ![]() 8yjzC 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 F&H 検索 |
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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 CBAD
| #1: 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) Homo sapiens (ヒト) / 遺伝子: PCNA / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P12004#2: タンパク質 | | 分子量: 42661.051 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト)参照: UniProt: P39748, 加水分解酵素; エステル加水分解酵素 |
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-DNA鎖 , 4種, 4分子 JEFH
| #3: DNA鎖 | 分子量: 5797.804 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
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| #4: DNA鎖 | 分子量: 8893.815 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
| #5: DNA鎖 | 分子量: 3382.289 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
| #6: DNA鎖 | 分子量: 867.621 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
-詳細
| Has protein modification | 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: endogenous state E PCNA-DNA-FEN1 complex / タイプ: COMPLEX / Entity ID: all / 由来: NATURAL |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 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: 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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 2000 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 | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.55 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 78778 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 拘束条件 |
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万見について




Homo sapiens (ヒト)
中国, 1件
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FIELD EMISSION GUN