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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: 9cma | ||||||
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| タイトル | Cryo-EM structure of FAN1 R507H-PCNA-DNA in final state | ||||||
要素 |
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キーワード | DNA BINDING PROTEIN / nuclease / CAG expansion / DNA repair / Huntington's disease / PROTEIN BINDING | ||||||
| 機能・相同性 | 機能・相同性情報flap-structured DNA binding / phosphodiesterase I / 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 ...flap-structured DNA binding / phosphodiesterase I / 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 / 加水分解酵素; エステル加水分解酵素; 5'-リン酸モノエステル産生エンドデオキシリボヌクレアーゼ / Telomere C-strand (Lagging Strand) Synthesis / Removal of the Flap Intermediate / 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 / ubiquitin-modified protein reader activity / Polymerase switching on the C-strand of the telomere / replisome / Processive synthesis on the C-strand of the telomere / 5'-3' exonuclease activity / phosphodiesterase I activity / response to L-glutamate / Removal of the Flap Intermediate from the C-strand / response to dexamethasone / DNA polymerase processivity factor activity / histone acetyltransferase binding / leading strand elongation / G1/S-Specific Transcription / nuclear replication fork / replication fork processing / SUMOylation of DNA replication proteins / PCNA-Dependent Long Patch Base Excision Repair / response to cadmium ion / estrous cycle / mismatch repair / interstrand cross-link repair / cyclin-dependent protein kinase holoenzyme complex / intercellular bridge / 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 / Translesion synthesis by REV1 / nuclear estrogen receptor binding / positive regulation of DNA repair / Translesion synthesis by POLK / replication fork / Translesion synthesis by POLI / Gap-filling DNA repair synthesis and ligation in GG-NER / male germ cell nucleus / nucleotide-excision repair / Fanconi Anemia Pathway / 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 / cellular response to hydrogen peroxide / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / cellular response to UV / response to estradiol / E3 ubiquitin ligases ubiquitinate target proteins / heart development / chromatin organization / damaged DNA binding / chromosome, telomeric region / cilium / nuclear body / DNA repair / chromatin binding / centrosome / chromatin / protein-containing complex binding / magnesium ion binding / enzyme binding / negative regulation of transcription by RNA polymerase II / extracellular exosome / zinc ion binding / nucleoplasm / identical protein binding / nucleus / cytosol 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト)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: 3.97 Å | ||||||
データ登録者 | LI, F. / Pluciennik, A. | ||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nat Commun / 年: 2025タイトル: Structural and molecular basis of PCNA-activated FAN1 nuclease function in DNA repair. 著者: F Li / A S Phadte / M Bhatia / S Barndt / A R Monte Carlo Iii / C-F D Hou / R Yang / S Strock / A Pluciennik / ![]() 要旨: FAN1 is a DNA dependent nuclease whose proper function is essential for maintaining human health. For example, a genetic variant in FAN1, Arg507 to His hastens onset of Huntington's disease, a repeat ...FAN1 is a DNA dependent nuclease whose proper function is essential for maintaining human health. For example, a genetic variant in FAN1, Arg507 to His hastens onset of Huntington's disease, a repeat expansion disorder for which there is no cure. How the Arg507His mutation affects FAN1 structure and enzymatic function is unknown. Using cryo-EM and biochemistry, we have discovered that FAN1 arginine 507 is critical for its interaction with PCNA, and mutation of Arg507 to His attenuates assembly of the FAN1-PCNA complex on a disease-relevant extrahelical DNA extrusions formed within DNA repeats. This mutation concomitantly abolishes PCNA-FAN1-dependent cleavage of such extrusions, thus unraveling the molecular basis for a specific mutation in FAN1 that dramatically hastens the onset of Huntington's disease. These results underscore the importance of PCNA to the genome stabilizing function of FAN1. | ||||||
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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 | 9cma.cif.gz | 296.3 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9cma.ent.gz | 233.9 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9cma.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/cm/9cma ftp://data.pdbj.org/pub/pdb/validation_reports/cm/9cma | HTTPS FTP |
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-関連構造データ
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リンク
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集合体
| 登録構造単位 | ![]()
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| 1 |
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要素
| #1: タンパク質 | 分子量: 73540.695 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: FAN1, KIAA1018, MTMR15 / 発現宿主: ![]() 参照: UniProt: Q9Y2M0, 加水分解酵素; エステル加水分解酵素; 5'-リン酸モノエステル産生エンドデオキシリボヌクレアーゼ, phosphodiesterase I | ||||||
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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) Homo sapiens (ヒト) / 遺伝子: PCNA / 発現宿主: ![]() #3: DNA鎖 | | 分子量: 14231.137 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: 12256.890 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) Has protein modification | Y | |
-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: Ternary complex of FAN1 R507H-PCNA-DNA in final state タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 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 / 湿度: 100 % |
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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: TFS KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: OTHER |
| 電子レンズ | モード: OTHER / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 500 nm |
| 撮影 | 電子線照射量: 50 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 ONLY |
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| 3次元再構成 | 解像度: 3.97 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 220000 / 対称性のタイプ: POINT |
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万見について




Homo sapiens (ヒト)
米国, 1件
引用






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FIELD EMISSION GUN