- EMDB-48071: Cryo-EM structure of Human RNA polymerase II Elongation Complex i... -
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データベース: EMDB / ID: EMD-48071
タイトル
Cryo-EM structure of Human RNA polymerase II Elongation Complex in an Intermediate Translocation State
マップデータ
Cryo-EM structure of the Free Stalled Human RNA polymerase II Elongation Complex in an Intermediate Translocation State
試料
複合体: Free Stalled Human RNA Polymerase II Elongation Complex in an Intermediate Translocation State
タンパク質・ペプチド: x 12種
DNA: x 2種
RNA: x 1種
リガンド: x 2種
キーワード
translocation / Human RNA polymerase II / TRANSCRIPTION / TRANSFERASE-DNA-RNA complex
機能・相同性
機能・相同性情報
microfibril binding / RNA Polymerase III Chain Elongation / RNA Polymerase III Transcription Termination / regulation of transcription by RNA polymerase I / RPAP3/R2TP/prefoldin-like complex / RNA Polymerase III Transcription Initiation From Type 1 Promoter / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Polymerase III Transcription Initiation From Type 3 Promoter / RNA Polymerase III Abortive And Retractive Initiation / Cytosolic sensors of pathogen-associated DNA ...microfibril binding / RNA Polymerase III Chain Elongation / RNA Polymerase III Transcription Termination / regulation of transcription by RNA polymerase I / RPAP3/R2TP/prefoldin-like complex / RNA Polymerase III Transcription Initiation From Type 1 Promoter / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Polymerase III Transcription Initiation From Type 3 Promoter / RNA Polymerase III Abortive And Retractive Initiation / Cytosolic sensors of pathogen-associated DNA / Abortive elongation of HIV-1 transcript in the absence of Tat / FGFR2 alternative splicing / RNA Polymerase I Transcription Termination / Viral Messenger RNA Synthesis / MicroRNA (miRNA) biogenesis / Signaling by FGFR2 IIIa TM / LRR domain binding / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / 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 / PIWI-interacting RNA (piRNA) biogenesis / mRNA Splicing - Minor Pathway / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA / transcription by RNA polymerase III / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / RNA polymerase II transcribes snRNA genes / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / positive regulation of translational initiation / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / nuclear-transcribed mRNA catabolic process / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / RNA polymerase I complex / RNA polymerase III complex / transcription elongation by RNA polymerase I / Formation of HIV elongation complex in the absence of HIV Tat / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / transcription by RNA polymerase I / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / transcription-coupled nucleotide-excision repair / translation initiation factor binding / RNA Polymerase II Pre-transcription Events / mRNA Splicing - Major Pathway / Inhibition of DNA recombination at telomere / positive regulation of RNA splicing / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / P-body / promoter-specific chromatin binding / RNA Polymerase I Promoter Escape / transcription elongation by RNA polymerase II / Transcriptional regulation by small RNAs / DNA-templated transcription termination / protein-DNA complex / NoRC negatively regulates rRNA expression / mRNA transcription by RNA polymerase II / B-WICH complex positively regulates rRNA expression / ribonucleoside binding / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Formation of TC-NER Pre-Incision Complex / kinase binding / fibrillar center / DNA-directed RNA polymerase / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / DNA-directed RNA polymerase activity / single-stranded DNA binding / 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 / transcription by RNA polymerase II / Estrogen-dependent gene expression / nucleic acid binding / protein dimerization activity / single-stranded RNA binding / nuclear speck / protein stabilization / RNA-directed RNA polymerase / nucleotide binding / hydrolase activity / RNA-directed RNA polymerase activity / chromatin binding / ubiquitin protein ligase binding / regulation of DNA-templated transcription / nucleolus 類似検索 - 分子機能
DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerases I, II, and III subunit RPABC1 / DNA-directed RNA polymerase II subunit RPB1 / DNA-directed RNA polymerase II subunit RPB2 / DNA-directed RNA polymerase II subunit RPB9 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerase II subunit RPB11-a / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / DNA-directed RNA polymerases I, II, and III subunit RPABC2 ...DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerases I, II, and III subunit RPABC1 / DNA-directed RNA polymerase II subunit RPB1 / DNA-directed RNA polymerase II subunit RPB2 / DNA-directed RNA polymerase II subunit RPB9 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerase II subunit RPB11-a / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerase II subunit RPB7 / DNA-directed RNA polymerases I, II, and III subunit RPABC5 類似検索 - 構成要素
National Institutes of Health/National Institute of Biomedical Imaging and Bioengineering (NIH/NIBIB)
R35 GM127018
米国
引用
ジャーナル: bioRxiv / 年: 2025 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.