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万見- EMDB-8736: Structural Basis forEukaryotic Transcription-Coupled Repair Initiation -
+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-8736 | |||||||||
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タイトル | Structural Basis forEukaryotic Transcription-Coupled Repair Initiation | |||||||||
マップデータ | Ternary complex of RNA Pol II, transcription scaffold and Rad26 | |||||||||
試料 |
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機能・相同性 | 機能・相同性情報 RPB4-RPB7 complex / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / mRNA Capping / RNA polymerase II transcribes snRNA genes / TP53 Regulates Transcription of DNA Repair Genes ...RPB4-RPB7 complex / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / mRNA Capping / RNA polymerase II transcribes snRNA genes / TP53 Regulates Transcription of DNA Repair Genes / termination of RNA polymerase II transcription / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Initiation And Promoter Clearance / RNA-templated transcription / RNA Polymerase II Pre-transcription Events / termination of RNA polymerase III transcription / Formation of TC-NER Pre-Incision Complex / transcription initiation at RNA polymerase III promoter / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / termination of RNA polymerase I transcription / RNA Polymerase I Promoter Escape / nucleolar large rRNA transcription by RNA polymerase I / Gap-filling DNA repair synthesis and ligation in TC-NER / transcription by RNA polymerase I / transcription initiation at RNA polymerase I promoter / Estrogen-dependent gene expression / nuclear-transcribed mRNA catabolic process / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / transcription by RNA polymerase III / RNA polymerase II activity / Dual incision in TC-NER / transcription elongation by RNA polymerase I / transcription-coupled nucleotide-excision repair / tRNA transcription by RNA polymerase III / RNA polymerase I activity / RNA polymerase I complex / RNA polymerase III complex / positive regulation of translational initiation / translesion synthesis / RNA polymerase II, core complex / translation initiation factor binding / DNA-templated transcription initiation / transcription initiation at RNA polymerase II promoter / transcription elongation by RNA polymerase II / P-body / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / cytoplasmic stress granule / mRNA processing / peroxisome / ribosome biogenesis / single-stranded DNA binding / transcription by RNA polymerase II / nucleic acid binding / single-stranded RNA binding / protein dimerization activity / mRNA binding / nucleotide binding / nucleolus / mitochondrion / DNA binding / zinc ion binding / nucleoplasm / nucleus / metal ion binding / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (パン酵母) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.5 Å | |||||||||
データ登録者 | Lahiri I / Leschziner AE | |||||||||
引用 | ジャーナル: Nature / 年: 2017 タイトル: Structural basis for the initiation of eukaryotic transcription-coupled DNA repair. 著者: Jun Xu / Indrajit Lahiri / Wei Wang / Adam Wier / Michael A Cianfrocco / Jenny Chong / Alissa A Hare / Peter B Dervan / Frank DiMaio / Andres E Leschziner / Dong Wang / 要旨: Eukaryotic transcription-coupled repair (TCR) is an important and well-conserved sub-pathway of nucleotide excision repair that preferentially removes DNA lesions from the template strand that block ...Eukaryotic transcription-coupled repair (TCR) is an important and well-conserved sub-pathway of nucleotide excision repair that preferentially removes DNA lesions from the template strand that block translocation of RNA polymerase II (Pol II). Cockayne syndrome group B (CSB, also known as ERCC6) protein in humans (or its yeast orthologues, Rad26 in Saccharomyces cerevisiae and Rhp26 in Schizosaccharomyces pombe) is among the first proteins to be recruited to the lesion-arrested Pol II during the initiation of eukaryotic TCR. Mutations in CSB are associated with the autosomal-recessive neurological disorder Cockayne syndrome, which is characterized by progeriod features, growth failure and photosensitivity. The molecular mechanism of eukaryotic TCR initiation remains unclear, with several long-standing unanswered questions. How cells distinguish DNA lesion-arrested Pol II from other forms of arrested Pol II, the role of CSB in TCR initiation, and how CSB interacts with the arrested Pol II complex are all unknown. The lack of structures of CSB or the Pol II-CSB complex has hindered our ability to address these questions. Here we report the structure of the S. cerevisiae Pol II-Rad26 complex solved by cryo-electron microscopy. The structure reveals that Rad26 binds to the DNA upstream of Pol II, where it markedly alters its path. Our structural and functional data suggest that the conserved Swi2/Snf2-family core ATPase domain promotes the forward movement of Pol II, and elucidate key roles for Rad26 in both TCR and transcription elongation. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_8736.map.gz | 14.2 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-8736-v30.xml emd-8736.xml | 11.1 KB 11.1 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_8736_fsc.xml | 13.5 KB | 表示 | FSCデータファイル |
画像 | emd_8736.png | 49.3 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-8736 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-8736 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_8736_validation.pdf.gz | 78.4 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_8736_full_validation.pdf.gz | 77.5 KB | 表示 | |
XML形式データ | emd_8736_validation.xml.gz | 495 B | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-8736 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-8736 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_8736.map.gz / 形式: CCP4 / 大きさ: 216 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Ternary complex of RNA Pol II, transcription scaffold and Rad26 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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: 1.2 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : Ternary complex of RNA Pol II, transcription scaffold and Rad26
全体 | 名称: Ternary complex of RNA Pol II, transcription scaffold and Rad26 |
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要素 |
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-超分子 #1: Ternary complex of RNA Pol II, transcription scaffold and Rad26
超分子 | 名称: Ternary complex of RNA Pol II, transcription scaffold and Rad26 タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#16 |
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由来(天然) | 生物種: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (パン酵母) 株: ATCC 204508 / S288c |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 7.5 |
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凍結 | 凍結剤: ETHANE / チャンバー内湿度: 90 % / チャンバー内温度: 277.15 K / 装置: FEI VITROBOT MARK IV |
-電子顕微鏡法
顕微鏡 | FEI TALOS ARCTICA |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: SUPER-RESOLUTION / 平均電子線量: 7.7 e/Å2 |
電子線 | 加速電圧: 200 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
実験機器 | モデル: Talos Arctica / 画像提供: FEI Company |