- EMDB-17405: Structural insights into human co-transcriptional capping - struc... -
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基本情報
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データベース: EMDB / ID: EMD-17405
タイトル
Structural insights into human co-transcriptional capping - structure 3
マップデータ
試料
複合体: Pol II - TPase complex
タンパク質・ペプチド: x 13種
DNA: x 2種
RNA: x 1種
タンパク質・ペプチド: x 2種
リガンド: x 2種
キーワード
rna polymerase II / capping / TRANSCRIPTION
機能・相同性
機能・相同性情報
RNA guanylyltransferase activity / polynucleotide 5'-phosphatase activity / inorganic triphosphate phosphatase activity / negative regulation of DNA-templated transcription, elongation / DSIF complex / regulation of transcription elongation by RNA polymerase II / mRNA 5'-phosphatase / mRNA 5'-triphosphate monophosphatase activity / Formation of RNA Pol II elongation complex / Formation of the Early Elongation Complex ...RNA guanylyltransferase activity / polynucleotide 5'-phosphatase activity / inorganic triphosphate phosphatase activity / negative regulation of DNA-templated transcription, elongation / DSIF complex / regulation of transcription elongation by RNA polymerase II / mRNA 5'-phosphatase / mRNA 5'-triphosphate monophosphatase activity / Formation of RNA Pol II elongation complex / Formation of the Early Elongation Complex / Transcriptional regulation by small RNAs / RNA Polymerase II Pre-transcription Events / TP53 Regulates Transcription of DNA Repair Genes / FGFR2 alternative splicing / RNA polymerase II transcribes snRNA genes / mRNA Capping / mRNA Splicing - Minor Pathway / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Elongation / RNA Polymerase II Transcription Initiation And Promoter Clearance / RNA Pol II CTD phosphorylation and interaction with CE / Estrogen-dependent gene expression / Formation of TC-NER Pre-Incision Complex / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / mRNA Splicing - Major Pathway / transcription elongation-coupled chromatin remodeling / positive regulation of DNA-templated transcription, elongation / Abortive elongation of HIV-1 transcript in the absence of Tat / 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 / RNA polymerase II complex binding / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / negative regulation of transcription elongation by RNA polymerase II / positive regulation of macroautophagy / RNA polymerase II transcribes snRNA genes / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / 7-methylguanosine mRNA capping / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / RNA polymerase I complex / RNA processing / 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 / phosphoprotein phosphatase activity / transcription-coupled nucleotide-excision repair / translation initiation factor binding / RNA Polymerase II Pre-transcription Events / positive regulation of RNA splicing / DNA-directed RNA polymerase complex / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / DNA-templated transcription initiation / promoter-specific chromatin binding / transcription elongation by RNA polymerase II / positive regulation of transcription elongation by RNA polymerase II / ribonucleoside binding / fibrillar center / DNA-directed RNA polymerase / DNA-directed RNA polymerase activity / 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 / mRNA guanylyltransferase / mRNA guanylyltransferase activity / nucleic acid binding / chromosome, telomeric region / protein dimerization activity / nuclear speck / protein heterodimerization activity / RNA-directed RNA polymerase / nucleotide binding / hydrolase activity / RNA-directed RNA polymerase activity / mRNA binding / chromatin binding / regulation of DNA-templated transcription / DNA-templated transcription / GTP binding / nucleolus / enzyme binding / negative regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / DNA binding / RNA binding 類似検索 - 分子機能
DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / DNA-directed RNA polymerase II subunit RPB11-a / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerase subunit beta / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / DNA-directed RNA polymerases I, II, and III subunit RPABC1 ...DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / DNA-directed RNA polymerase II subunit RPB11-a / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerase subunit beta / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / DNA-directed RNA polymerases I, II, and III subunit RPABC1 / Transcription elongation factor SPT5 / mRNA-capping enzyme / DNA-directed RNA polymerase II subunit RPB1 / DNA-directed RNA polymerase II subunit RPB9 / Transcription elongation factor SPT4 類似検索 - 構成要素
生物種
Homo sapiens (ヒト) / Sus scrofa (ブタ) / unidentified (未定義)
ジャーナル: Mol Cell / 年: 2023 タイトル: Structural insights into human co-transcriptional capping. 著者: Gaurika Garg / Christian Dienemann / Lucas Farnung / Juliane Schwarz / Andreas Linden / Henning Urlaub / Patrick Cramer / 要旨: Co-transcriptional capping of the nascent pre-mRNA 5' end prevents degradation of RNA polymerase (Pol) II transcripts and suppresses the innate immune response. Here, we provide mechanistic insights ...Co-transcriptional capping of the nascent pre-mRNA 5' end prevents degradation of RNA polymerase (Pol) II transcripts and suppresses the innate immune response. Here, we provide mechanistic insights into the three major steps of human co-transcriptional pre-mRNA capping based on six different cryoelectron microscopy (cryo-EM) structures. The human mRNA capping enzyme, RNGTT, first docks to the Pol II stalk to position its triphosphatase domain near the RNA exit site. The capping enzyme then moves onto the Pol II surface, and its guanylyltransferase receives the pre-mRNA 5'-diphosphate end. Addition of a GMP moiety can occur when the RNA is ∼22 nt long, sufficient to reach the active site of the guanylyltransferase. For subsequent cap(1) methylation, the methyltransferase CMTR1 binds the Pol II stalk and can receive RNA after it is grown to ∼29 nt in length. The observed rearrangements of capping factors on the Pol II surface may be triggered by the completion of catalytic reaction steps and are accommodated by domain movements in the elongation factor DRB sensitivity-inducing factor (DSIF).