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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 | ||||||
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![]() | DNA BINDING PROTEIN/DNA / Flap endonuclease 1 / endogenous DNA / PCNA / DNA BINDING PROTEIN-DNA complex | ||||||
機能・相同性 | ![]() flap endonuclease activity / positive regulation of sister chromatid cohesion / telomere maintenance via semi-conservative replication / double-stranded DNA exodeoxyribonuclease activity / positive regulation of deoxyribonuclease activity / 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 ...flap endonuclease activity / positive regulation of sister chromatid cohesion / telomere maintenance via semi-conservative replication / double-stranded DNA exodeoxyribonuclease activity / positive regulation of deoxyribonuclease activity / 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 / UV protection / positive regulation of DNA-directed DNA polymerase activity / Polymerase switching / Telomere C-strand (Lagging Strand) Synthesis / MutLalpha complex binding / Processive synthesis on the lagging strand / PCNA complex / DNA replication, removal of RNA primer / Removal of the Flap Intermediate / HDR through MMEJ (alt-NHEJ) / Processive synthesis on the C-strand of the telomere / Polymerase switching on the C-strand of the telomere / Removal of the Flap Intermediate from the C-strand / 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 / replisome / 5'-3' exonuclease activity / exonuclease activity / response to L-glutamate / histone acetyltransferase binding / DNA polymerase processivity factor activity / leading strand elongation / Early Phase of HIV Life Cycle / G1/S-Specific Transcription / response to dexamethasone / replication fork processing / nuclear replication fork / SUMOylation of DNA replication proteins / POLB-Dependent Long Patch Base Excision Repair / PCNA-Dependent Long Patch Base Excision Repair / translesion synthesis / mismatch repair / response to cadmium ion / estrous cycle / cyclin-dependent protein kinase holoenzyme complex / base-excision repair, gap-filling / DNA polymerase binding / epithelial cell differentiation / male germ cell nucleus / positive regulation of DNA repair / TP53 Regulates Transcription of Genes Involved in G2 Cell Cycle Arrest / Translesion synthesis by REV1 / Translesion synthesis by POLK / liver regeneration / Translesion synthesis by POLI / replication fork / Gap-filling DNA repair synthesis and ligation in GG-NER / positive regulation of DNA replication / nuclear estrogen receptor binding / Termination of translesion DNA synthesis / Recognition of DNA damage by PCNA-containing replication complex / double-strand break repair via homologous recombination / Translesion Synthesis by POLH / receptor tyrosine kinase binding / HDR through Homologous Recombination (HRR) / Dual Incision in GG-NER / memory / cellular response to hydrogen peroxide / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / RNA-DNA hybrid ribonuclease activity / cellular response to UV / cellular response to xenobiotic stimulus / double-strand break repair / E3 ubiquitin ligases ubiquitinate target proteins / response to estradiol / manganese ion binding / heart development / 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 / centrosome / chromatin binding / protein-containing complex binding / chromatin / nucleolus / enzyme binding / negative regulation of transcription by RNA polymerase II / magnesium ion binding / protein-containing complex / mitochondrion / DNA binding / extracellular exosome 類似検索 - 分子機能 | ||||||
生物種 | ![]() | ||||||
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 | ||||||
![]() | Tian, Y. / Gao, N. | ||||||
資金援助 | ![]()
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![]() | ![]() 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. | ||||||
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 | ![]() | 229.3 KB | 表示 | ![]() |
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PDB形式 | ![]() | 181 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | 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 ![]() |
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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) ![]() ![]() #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) ![]() 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) ![]() |
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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) ![]() |
#5: DNA鎖 | 分子量: 3382.289 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#6: DNA鎖 | 分子量: 867.621 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
-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: ![]() |
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: ![]() |
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
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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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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