- EMDB-17408: Structural insights into human co-transcriptional capping - struc... -
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データベース: EMDB / ID: EMD-17408
タイトル
Structural insights into human co-transcriptional capping - structure 6
マップデータ
試料
複合体: Pol II - TPase complex
RNA: x 1種
タンパク質・ペプチド: x 13種
DNA: x 2種
タンパク質・ペプチド: x 2種
リガンド: x 4種
キーワード
rna polymerase II / capping / TRANSCRIPTION
機能・相同性
機能・相同性情報
negative regulation of DNA-templated transcription, elongation / DSIF complex / regulation of transcription elongation by RNA polymerase II / B-WICH complex positively regulates rRNA expression / RNA Polymerase I Transcription Initiation / RNA Polymerase I Promoter Escape / RNA Polymerase I Transcription Termination / 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 ...negative regulation of DNA-templated transcription, elongation / DSIF complex / regulation of transcription elongation by RNA polymerase II / B-WICH complex positively regulates rRNA expression / RNA Polymerase I Transcription Initiation / RNA Polymerase I Promoter Escape / RNA Polymerase I Transcription Termination / 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 / 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 / positive regulation of DNA-templated transcription, elongation / Abortive elongation of HIV-1 transcript in the absence of Tat / transcription elongation-coupled chromatin remodeling / 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 / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / RNA polymerase III activity / RNA polymerase II complex binding / negative regulation of transcription elongation by RNA polymerase II / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / positive regulation of macroautophagy / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / RNA polymerase II transcribes snRNA genes / RNA polymerase II activity / Tat-mediated elongation of the HIV-1 transcript / 7-methylguanosine mRNA capping / transcription elongation by RNA polymerase I / Formation of HIV-1 elongation complex containing HIV-1 Tat / transcription-coupled nucleotide-excision repair / tRNA transcription by RNA polymerase III / RNA polymerase I complex / RNA polymerase I activity / RNA polymerase III complex / positive regulation of translational initiation / 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 / translation initiation factor binding / positive regulation of RNA splicing / promoter-specific chromatin binding / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / transcription elongation by RNA polymerase II / P-body / ribonucleoside binding / fibrillar center / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / mRNA processing / 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 / methyltransferase cap1 / mRNA (nucleoside-2'-O-)-methyltransferase activity / methylation / transcription by RNA polymerase II / nucleic acid binding / chromosome, telomeric region / single-stranded RNA binding / protein dimerization activity / hydrolase activity / nuclear speck / protein heterodimerization activity / RNA-directed RNA polymerase / intracellular membrane-bounded organelle / RNA-dependent RNA polymerase activity / mRNA binding / nucleotide binding / DNA-templated transcription / chromatin binding / regulation of DNA-templated transcription 類似検索 - 分子機能
RNA polymerase II subunit D / 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 / RNA polymerase II, I and III subunit K / DNA-directed RNA polymerase II subunit E ...RNA polymerase II subunit D / 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 / RNA polymerase II, I and III subunit K / DNA-directed RNA polymerase II subunit E / Transcription elongation factor SPT5 / DNA-directed RNA polymerase II subunit RPB1 / DNA-directed RNA polymerase II subunit RPB9 / Transcription elongation factor SPT4 / Cap-specific mRNA (nucleoside-2'-O-)-methyltransferase 1 類似検索 - 構成要素
生物種
Homo sapiens (ヒト) / synthetic construct (人工物) / Sus scrofa (ブタ)
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).