- EMDB-48074: Cryo-EM structure of Human RNA polymerase II Elongation Complex b... -
+
データを開く
IDまたはキーワード:
読み込み中...
-
基本情報
登録情報
データベース: EMDB / ID: EMD-48074
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)
マップデータ
cryo-EM structure of the Stalled Human RNA Polymerase II Elongation Complex bound to the apo RECQL5 Helicase (RECQL5 IRI Module focused classified)
試料
複合体: Stalled Human RNA polymerase II Elongation Complex bound to an apo RECQL5 helicase (RECQL5 IRI Module-focused classified)
タンパク質・ペプチド: DNA-directed RNA polymerase II subunit RPB1
タンパク質・ペプチド: ATP-dependent DNA helicase Q5
キーワード
translocation / Human RNA polymerase II / RECQL5 helicase / IRI Module / TRANSCRIPTION / TRANSFERASE-DNA-RNA complex
機能・相同性
機能・相同性情報
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 / Viral Messenger RNA Synthesis ...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 / Viral Messenger RNA Synthesis / DNA 3'-5' helicase / Signaling by FGFR2 IIIa TM / DNA metabolic process / 3'-5' DNA helicase activity / 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 / 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 Capping / mRNA Splicing - Minor Pathway / PIWI-interacting RNA (piRNA) biogenesis / RNA polymerase II complex binding / Processing of Capped Intron-Containing Pre-mRNA / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / negative regulation of transcription elongation by RNA polymerase II / 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 / Formation of HIV-1 elongation complex containing HIV-1 Tat / negative regulation of double-strand break repair via homologous recombination / Formation of HIV elongation complex in the absence of HIV Tat / RNA polymerase II, core complex / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / RNA Polymerase II Pre-transcription Events / Inhibition of DNA recombination at telomere / DNA helicase activity / mRNA Splicing - Major Pathway / positive regulation of RNA splicing / replication fork / TP53 Regulates Transcription of DNA Repair Genes / Transcriptional regulation by small RNAs / promoter-specific chromatin binding / DNA-templated transcription termination / helicase activity / double-strand break repair via homologous recombination / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / DNA-directed RNA polymerase activity / 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 / four-way junction helicase activity / Estrogen-dependent gene expression / transcription by RNA polymerase II / 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 / cytosol / cytoplasm 類似検索 - 分子機能
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.
全体 : Stalled Human RNA polymerase II Elongation Complex bound to an ap...
全体
名称: Stalled Human RNA polymerase II Elongation Complex bound to an apo RECQL5 helicase (RECQL5 IRI Module-focused classified)
要素
複合体: Stalled Human RNA polymerase II Elongation Complex bound to an apo RECQL5 helicase (RECQL5 IRI Module-focused classified)
タンパク質・ペプチド: DNA-directed RNA polymerase II subunit RPB1
タンパク質・ペプチド: ATP-dependent DNA helicase Q5
-
超分子 #1: Stalled Human RNA polymerase II Elongation Complex bound to an ap...
超分子
名称: Stalled Human RNA polymerase II Elongation Complex bound to an apo RECQL5 helicase (RECQL5 IRI Module-focused classified) タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all
由来(天然)
生物種: Homo sapiens (ヒト)
分子量
理論値: 490 KDa
-
分子 #1: DNA-directed RNA polymerase II subunit RPB1