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基本情報
登録情報 | データベース: EMDB / ID: EMD-8737 | |||||||||
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タイトル | RNA pol II elongation complex | |||||||||
![]() | RNA pol II elongation complex | |||||||||
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![]() | complex / RNA polymerase / CSB / transcription / TRANSCRIPTION-RNA-DNA complex | |||||||||
機能・相同性 | ![]() RPB4-RPB7 complex / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA / 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 / termination of RNA polymerase II transcription ...RPB4-RPB7 complex / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA / 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 / termination of RNA polymerase II transcription / TP53 Regulates Transcription of DNA Repair Genes / 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 / termination of RNA polymerase III transcription / RNA Polymerase II Pre-transcription Events / RNA-templated transcription / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / Formation of TC-NER Pre-Incision Complex / transcription initiation at RNA polymerase III promoter / RNA Polymerase I Promoter Escape / termination of RNA polymerase I transcription / nucleolar large rRNA transcription by RNA polymerase I / Gap-filling DNA repair synthesis and ligation in TC-NER / transcription initiation at RNA polymerase I promoter / Estrogen-dependent gene expression / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / nuclear-transcribed mRNA catabolic process / positive regulation of translational initiation / transcription by RNA polymerase III / Dual incision in TC-NER / translesion synthesis / RNA polymerase I complex / transcription elongation by RNA polymerase I / RNA polymerase III complex / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / transcription by RNA polymerase I / translation initiation factor binding / transcription-coupled nucleotide-excision repair / transcription initiation at RNA polymerase II promoter / transcription elongation by RNA polymerase II / DNA-templated transcription initiation / P-body / ribonucleoside binding / mRNA processing / DNA-directed RNA polymerase / cytoplasmic stress granule / DNA-directed RNA polymerase activity / peroxisome / ribosome biogenesis / single-stranded DNA binding / nucleic acid binding / transcription by RNA polymerase II / single-stranded RNA binding / protein dimerization activity / nucleotide binding / mRNA binding / nucleolus / mitochondrion / DNA binding / zinc ion binding / nucleoplasm / metal ion binding / nucleus / cytoplasm 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: 6.4 Å | |||||||||
![]() | Lahiri I / Leschziner AE | |||||||||
![]() | ![]() 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. | |||||||||
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構造の表示
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構造ビューア | EMマップ: ![]() ![]() ![]() |
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マップデータ | ![]() | 10.2 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 28.2 KB 28.2 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 13.6 KB | 表示 | ![]() |
画像 | ![]() | 101 KB | ||
Filedesc metadata | ![]() | 8.8 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 362.4 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 362 KB | 表示 | |
XML形式データ | ![]() | 13.6 KB | 表示 | |
CIF形式データ | ![]() | 18.4 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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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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注釈 | RNA pol II elongation complex | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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
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試料の構成要素
+全体 : Binary complex of RNA Pol II and transcription scaffold
+超分子 #1: Binary complex of RNA Pol II and transcription scaffold
+分子 #1: DNA-directed RNA polymerase II subunit RPB1
+分子 #2: DNA-directed RNA polymerase II subunit RPB2
+分子 #3: DNA-directed RNA polymerase II subunit RPB3
+分子 #4: DNA-directed RNA polymerase II subunit RPB4
+分子 #5: DNA-directed RNA polymerases I, II, and III subunit RPABC1
+分子 #6: DNA-directed RNA polymerases I, II, and III subunit RPABC2
+分子 #7: DNA-directed RNA polymerase II subunit RPB7
+分子 #8: DNA-directed RNA polymerases I, II, and III subunit RPABC3
+分子 #9: DNA-directed RNA polymerase II subunit RPB9
+分子 #10: DNA-directed RNA polymerases I, II, and III subunit RPABC5
+分子 #11: DNA-directed RNA polymerase II subunit RPB11
+分子 #12: DNA-directed RNA polymerases I, II, and III subunit RPABC4
+分子 #13: RNA
+分子 #14: DNA (NTS)
+分子 #15: DNA (TS)
+分子 #16: ZINC ION
+分子 #17: MAGNESIUM ION
-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 / 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 |
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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: ![]() |
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 |
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画像解析
初期モデル | モデルのタイプ: PDB ENTRY PDBモデル - PDB ID: |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 6.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / ソフトウェア - 名称: RELION / 使用した粒子像数: 19331 |
初期 角度割当 | タイプ: PROJECTION MATCHING |
最終 角度割当 | タイプ: PROJECTION MATCHING |