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基本情報
登録情報 | ![]() | |||||||||
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タイトル | Structure of the human endogenous PCNA-FEN1 complex - State H | |||||||||
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![]() | Flap endonuclease 1 / endogenous DNA / PCNA / DNA BINDING PROTEIN/DNA / 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 / purine-specific mismatch base pair DNA N-glycosylase activity / 5'-flap endonuclease 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 / purine-specific mismatch base pair DNA N-glycosylase activity / 5'-flap endonuclease activity / nuclear lamina / positive regulation of DNA-directed DNA polymerase activity / Polymerase switching / MutLalpha complex binding / Telomere C-strand (Lagging Strand) Synthesis / UV protection / Processive synthesis on the lagging strand / PCNA complex / Removal of the Flap Intermediate / DNA replication, removal of RNA primer / Processive synthesis on the C-strand of the telomere / HDR through MMEJ (alt-NHEJ) / 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 / 5'-3' exonuclease activity / exonuclease activity / response to L-glutamate / histone acetyltransferase binding / DNA polymerase processivity factor activity / leading strand elongation / G1/S-Specific Transcription / Early Phase of HIV Life Cycle / 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 / mismatch repair / translesion synthesis / response to cadmium ion / estrous cycle / cyclin-dependent protein kinase holoenzyme complex / base-excision repair, gap-filling / DNA polymerase binding / epithelial cell differentiation / positive regulation of DNA repair / male germ cell nucleus / TP53 Regulates Transcription of Genes Involved in G2 Cell Cycle Arrest / Translesion synthesis by REV1 / Translesion synthesis by POLK / liver regeneration / replication fork / Translesion synthesis by POLI / 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 / response to estradiol / E3 ubiquitin ligases ubiquitinate target proteins / 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 | 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
添付画像 |
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ダウンロードとリンク
-EMDBアーカイブ
マップデータ | ![]() | 10.9 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 17.3 KB 17.3 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 12.8 KB | 表示 | ![]() |
画像 | ![]() | 85.4 KB | ||
Filedesc metadata | ![]() | 5.7 KB | ||
その他 | ![]() ![]() | 140.7 MB 140.8 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 763.3 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 762.8 KB | 表示 | |
XML形式データ | ![]() | 19.8 KB | 表示 | |
CIF形式データ | ![]() | 25.9 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 | ![]() 8yjwMC ![]() 8yjhC ![]() 8yjlC ![]() 8yjqC ![]() 8yjrC ![]() 8yjsC ![]() 8yjuC ![]() 8yjvC ![]() 8yjzC M: このマップから作成された原子モデル 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
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 0.83 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #1
ファイル | emd_39352_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #2
ファイル | emd_39352_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : endogenous state H PCNA-DNA-FEN1 complex
全体 | 名称: endogenous state H PCNA-DNA-FEN1 complex |
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要素 |
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-超分子 #1: endogenous state H PCNA-DNA-FEN1 complex
超分子 | 名称: endogenous state H PCNA-DNA-FEN1 complex / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() |
-分子 #1: Proliferating cell nuclear antigen
分子 | 名称: Proliferating cell nuclear antigen / タイプ: protein_or_peptide / ID: 1 / コピー数: 3 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 28.795752 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MFEARLVQGS ILKKVLEALK DLINEACWDI SSSGVNLQSM DSSHVSLVQL TLRSEGFDTY RCDRNLAMGV NLTSMSKILK CAGNEDIIT LRAEDNADTL ALVFEAPNQE KVSDYEMKLM DLDVEQLGIP EQEYSCVVKM PSGEFARICR DLSHIGDAVV I SCAKDGVK ...文字列: MFEARLVQGS ILKKVLEALK DLINEACWDI SSSGVNLQSM DSSHVSLVQL TLRSEGFDTY RCDRNLAMGV NLTSMSKILK CAGNEDIIT LRAEDNADTL ALVFEAPNQE KVSDYEMKLM DLDVEQLGIP EQEYSCVVKM PSGEFARICR DLSHIGDAVV I SCAKDGVK FSASGELGNG NIKLSQTSNV DKEEEAVTIE MNEPVQLTFA LRYLNFFTKA TPLSSTVTLS MSADVPLVVE YK IADMGHL KYYLAPKIED EEGS UniProtKB: Proliferating cell nuclear antigen |
-分子 #2: Flap endonuclease 1
分子 | 名称: Flap endonuclease 1 / タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 光学異性体: LEVO EC番号: 加水分解酵素; エステル加水分解酵素 |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 42.661051 KDa |
配列 | 文字列: MGIQGLAKLI ADVAPSAIRE NDIKSYFGRK VAIDASMSIY QFLIAVRQGG DVLQNEEGET TSHLMGMFYR TIRMMENGIK PVYVFDGKP PQLKSGELAK RSERRAEAEK QLQQAQAAGA EQEVEKFTKR LVKVTKQHND ECKHLLSLMG IPYLDAPSEA E ASCAALVK ...文字列: MGIQGLAKLI ADVAPSAIRE NDIKSYFGRK VAIDASMSIY QFLIAVRQGG DVLQNEEGET TSHLMGMFYR TIRMMENGIK PVYVFDGKP PQLKSGELAK RSERRAEAEK QLQQAQAAGA EQEVEKFTKR LVKVTKQHND ECKHLLSLMG IPYLDAPSEA E ASCAALVK AGKVYAAATE DMDCLTFGSP VLMRHLTASE AKKLPIQEFH LSRILQELGL NQEQFVDLCI LLGSDYCESI RG IGPKRAV DLIQKHKSIE EIVRRLDPNK YPVPENWLHK EAHQLFLEPE VLDPESVELK WSEPNEEELI KFMCGEKQFS EER IRSGVK RLSKSRQGST QGRLDDFFKV TGSLSSAKRK EPEPKGSTKK KAKTGAAGKF KRGK UniProtKB: Flap endonuclease 1 |
-分子 #3: upstream DNA
分子 | 名称: upstream DNA / タイプ: dna / ID: 3 / コピー数: 1 / 分類: DNA |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 6.101998 KDa |
配列 | 文字列: (DT)(DT)(DT)(DA)(DT)(DT)(DT)(DA)(DT)(DT) (DT)(DT)(DT)(DT)(DA)(DA)(DA)(DA)(DA)(DT) |
-分子 #4: parent strand DNA
分子 | 名称: parent strand DNA / タイプ: dna / ID: 4 / コピー数: 1 / 分類: DNA |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 9.27012 KDa |
配列 | 文字列: (DA)(DA)(DA)(DA)(DA)(DA)(DT)(DT)(DA)(DA) (DA)(DT)(DT)(DT)(DT)(DT)(DA)(DA)(DA)(DA) (DA)(DA)(DT)(DA)(DA)(DA)(DT)(DA)(DA) (DA) |
-分子 #5: 5 prime flap DNA
分子 | 名称: 5 prime flap DNA / タイプ: dna / ID: 5 / コピー数: 1 / 分類: DNA |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 867.621 Da |
配列 | 文字列: (DT)(DT)(DT) |
-分子 #6: downstream DNA
分子 | 名称: downstream DNA / タイプ: dna / ID: 6 / コピー数: 1 / 分類: DNA |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 3.014999 KDa |
配列 | 文字列: (DT)(DT)(DA)(DA)(DT)(DT)(DT)(DT)(DT)(DT) |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
緩衝液 | pH: 7.5 |
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凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 平均電子線量: 60.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3.0 µm / 最小 デフォーカス(公称値): 2.0 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |