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基本情報
登録情報 | データベース: PDB / ID: 9ei2 | ||||||||||||||||||||||||||||||
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タイトル | Cryo-EM structure of Human RNA polymerase II Elongation Complex bound to an apo RECQL5 helicase (RECQL5 IRI Module focused-classified) | ||||||||||||||||||||||||||||||
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![]() | TRANSCRIPTION / TRANSFERASE/DNA/RNA / translocation / Human RNA polymerase II / RECQL5 helicase / IRI Module / TRANSFERASE-DNA-RNA complex | ||||||||||||||||||||||||||||||
機能・相同性 | ![]() mitotic DNA-templated DNA replication / microfibril binding / chromosome separation / cellular response to camptothecin / replication-born double-strand break repair via sister chromatid exchange / Abortive elongation of HIV-1 transcript in the absence of Tat / FGFR2 alternative splicing / transcription preinitiation complex / MicroRNA (miRNA) biogenesis / 3'-5' DNA helicase activity ...mitotic DNA-templated DNA replication / microfibril binding / chromosome separation / cellular response to camptothecin / replication-born double-strand break repair via sister chromatid exchange / Abortive elongation of HIV-1 transcript in the absence of Tat / FGFR2 alternative splicing / transcription preinitiation complex / MicroRNA (miRNA) biogenesis / 3'-5' DNA helicase activity / DNA 3'-5' helicase / Viral Messenger RNA Synthesis / Signaling by FGFR2 IIIa TM / DNA metabolic process / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / mRNA Capping / HIV Transcription Initiation / RNA Polymerase II HIV Promoter Escape / Transcription of the HIV genome / 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 / mRNA Splicing - Minor Pathway / RNA polymerase II complex binding / PIWI-interacting RNA (piRNA) biogenesis / negative regulation of transcription elongation by RNA polymerase II / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / Processing of Capped Intron-Containing Pre-mRNA / RNA polymerase II transcribes snRNA genes / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / Tat-mediated elongation of the HIV-1 transcript / negative regulation of double-strand break repair via homologous recombination / Formation of HIV-1 elongation complex containing HIV-1 Tat / Formation of HIV elongation complex in the absence of HIV Tat / DNA helicase activity / RNA polymerase II, core complex / RNA Polymerase II Transcription Elongation / : / Formation of RNA Pol II elongation complex / RNA Polymerase II Pre-transcription Events / DNA-directed RNA polymerase activity / Inhibition of DNA recombination at telomere / mRNA Splicing - Major Pathway / positive regulation of RNA splicing / replication fork / isomerase activity / helicase activity / TP53 Regulates Transcription of DNA Repair Genes / Transcriptional regulation by small RNAs / promoter-specific chromatin binding / DNA-templated transcription termination / double-strand break repair via homologous recombination / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / kinase binding / Activation of anterior HOX genes in hindbrain development during early embryogenesis / : / : / : / : / : / : / DNA-directed RNA polymerase / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / cellular response to xenobiotic stimulus / mitotic cell cycle / chromosome / 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キソリボヌクレアーゼ / Estrogen-dependent gene expression / transcription by RNA polymerase II / forked DNA-dependent helicase activity / single-stranded 3'-5' DNA helicase activity / four-way junction helicase activity / double-stranded DNA helicase activity / DNA replication / hydrolase activity / cell division / RNA-directed RNA polymerase / DNA repair / RNA-directed RNA polymerase activity / ubiquitin protein ligase binding / regulation of DNA-templated transcription / magnesium ion binding / ATP hydrolysis activity / mitochondrion / DNA binding / RNA binding / zinc ion binding / nucleoplasm / ATP binding / metal ion binding / identical protein binding / nucleus 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: 2.8 Å | ||||||||||||||||||||||||||||||
![]() | Florez Ariza, A. / Lue, N. / Nogales, E. | ||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural insights into transcriptional regulation by the helicase RECQL5. 著者: Alfredo Jose Florez Ariza / Nicholas Z Lue / Patricia Grob / Benjamin Kaeser / Jie Fang / Susanne A Kassube / Eva Nogales / ![]() 要旨: Transcription and its regulation pose a major challenge for genome stability. The helicase RECQL5 has been proposed as an important factor to help safeguard the genome, and is the only member of the ...Transcription and its regulation pose a major challenge for genome stability. The helicase RECQL5 has been proposed as an important factor to help safeguard the genome, and is the only member of the human RecQ helicase family that directly binds to RNA Polymerase II (Pol II) and affects its progression. RECQL5 mitigates transcription stress and genome instability in cells, yet the molecular mechanism underlying this phenomenon is unclear. Here, we employ cryo-electron microscopy (cryo-EM) to determine the structures of stalled Pol II elongation complexes (ECs) bound to RECQL5. Our structures reveal the molecular interactions stabilizing RECQL5 binding to the Pol II EC and highlight its role as a transcriptional roadblock. Additionally, we find that RECQL5 can modulate the Pol II translocation state. In its nucleotide-free state, RECQL5 mechanically twists the downstream DNA in the EC, and upon nucleotide binding, it undergoes a conformational change that allosterically induces Pol II towards a post-translocation state. We propose this mechanism may help restart Pol II elongation and therefore contribute to reduction of transcription stress. | ||||||||||||||||||||||||||||||
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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 | ![]() | 123.2 KB | 表示 | ![]() |
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PDB形式 | ![]() | 61 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 | ![]() 48074MC ![]() 9ehzC ![]() 9ei1C ![]() 9ei3C ![]() 9ei4C 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
#1: タンパク質 | 分子量: 217420.047 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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#2: タンパク質 | 分子量: 109024.859 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
Has protein modification | N |
-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: Stalled Human RNA polymerase II Elongation Complex bound to an apo RECQL5 helicase (RECQL5 IRI Module-focused classified) タイプ: COMPLEX / Entity ID: all / 由来: MULTIPLE SOURCES |
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分子量 | 値: 0.49 MDa / 実験値: NO |
由来(天然) | 生物種: ![]() |
緩衝液 | pH: 8 |
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: TFS 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): 1800 nm / 最小 デフォーカス(公称値): 800 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
EMソフトウェア | 名称: PHENIX / バージョン: 1.20.1_4487 / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 2.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 103214 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
精密化 | 最高解像度: 2.8 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
拘束条件 |
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