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Yorodumi- PDB-8wap: Structure of transcribing complex 6 (TC6), the initially transcri... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 8wap | ||||||
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| Title | Structure of transcribing complex 6 (TC6), the initially transcribing complex with Pol II positioned 6nt downstream of TSS. | ||||||
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Keywords | TRANSCRIPTION / transcribing complex / de novo transcription initiation / initially transcribing complex (ITC) | ||||||
| Function / homology | Function and homology informationnegative regulation of MHC class I biosynthetic process / response to paraquat / spermine transport / SAGA complex assembly / lateral mesodermal cell differentiation / MMXD complex / core TFIIH complex portion of holo TFIIH complex / DNA-templated transcription open complex formation / allantois development / pre-snoRNP complex ...negative regulation of MHC class I biosynthetic process / response to paraquat / spermine transport / SAGA complex assembly / lateral mesodermal cell differentiation / MMXD complex / core TFIIH complex portion of holo TFIIH complex / DNA-templated transcription open complex formation / allantois development / pre-snoRNP complex / positive regulation of androgen receptor signaling pathway / TFIIH-class transcription factor complex binding / Cytosolic iron-sulfur cluster assembly / negative regulation of protein autoubiquitination / central nervous system myelin formation / positive regulation of core promoter binding / negative regulation of MHC class II biosynthetic process / transcription factor TFTC complex / RNA polymerase II core complex assembly / positive regulation of mitotic recombination / regulation of cell cycle G1/S phase transition / RNA polymerase I general transcription initiation factor activity / hair cell differentiation / hair follicle maturation / transcription factor TFIIE complex / RNA polymerase transcription factor SL1 complex / nucleotide-excision repair factor 3 complex / meiotic sister chromatid cohesion / phosphatase activator activity / nucleotide-excision repair, preincision complex assembly / ventricular system development / SLIK (SAGA-like) complex / RNA polymerase III general transcription initiation factor activity / TFIIF-class transcription factor complex binding / transcription factor TFIIK complex / CAK-ERCC2 complex / transcriptional start site selection at RNA polymerase II promoter / RNA polymerase I core promoter sequence-specific DNA binding / hepatocyte differentiation / transcription factor TFIIF complex / positive regulation of response to cytokine stimulus / embryonic cleavage / 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 / DNA 5'-3' helicase / female germ cell nucleus / transcription factor TFIIA complex / C2H2 zinc finger domain binding / maintenance of protein location in nucleus / UV protection / regulation of cyclin-dependent protein serine/threonine kinase activity / RNA Polymerase III Abortive And Retractive Initiation / adult heart development / male pronucleus / transcription factor TFIIH core complex / transcription factor TFIIH holo complex / histone H3K4me3 reader activity / female pronucleus / host-mediated activation of viral transcription / cyclin-dependent protein serine/threonine kinase activator activity / G protein-coupled receptor internalization / germinal vesicle / RNA polymerase II general transcription initiation factor binding / nuclear vitamin D receptor binding / RNA polymerase binding / regulation of fat cell differentiation / nuclear thyroid hormone receptor binding / box C/D snoRNP assembly / SAGA complex / Abortive elongation of HIV-1 transcript in the absence of Tat / FGFR2 alternative splicing / transcription preinitiation complex / RNA Polymerase I Transcription Termination / Viral Messenger RNA Synthesis / Signaling by FGFR2 IIIa TM / inner cell mass cell proliferation / protein acetylation / negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) Amanita phalloides (death cap)![]() synthetic construct (others) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5.85 Å | ||||||
Authors | Chen, X. / Liu, W. / Wang, Q. / Wang, X. / Ren, Y. / Qu, X. / Li, W. / Xu, Y. | ||||||
| Funding support | 1items
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Citation | Journal: Science / Year: 2023Title: Structural visualization of transcription initiation in action. Authors: Xizi Chen / Weida Liu / Qianmin Wang / Xinxin Wang / Yulei Ren / Xuechun Qu / Wanjun Li / Yanhui Xu / ![]() Abstract: Transcription initiation is a complex process, and its mechanism is incompletely understood. We determined the structures of de novo transcribing complexes TC2 to TC17 with RNA polymerase II halted ...Transcription initiation is a complex process, and its mechanism is incompletely understood. We determined the structures of de novo transcribing complexes TC2 to TC17 with RNA polymerase II halted on G-less promoters when nascent RNAs reach 2 to 17 nucleotides in length, respectively. Connecting these structures generated a movie and a working model. As initially synthesized RNA grows, general transcription factors (GTFs) remain bound to the promoter and the transcription bubble expands. Nucleoside triphosphate (NTP)-driven RNA-DNA translocation and template-strand accumulation in a nearly sealed channel may promote the transition from initially transcribing complexes (ITCs) (TC2 to TC9) to early elongation complexes (EECs) (TC10 to TC17). Our study shows dynamic processes of transcription initiation and reveals why ITCs require GTFs and bubble expansion for initial RNA synthesis, whereas EECs need GTF dissociation from the promoter and bubble collapse for promoter escape. | ||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8wap.cif.gz | 2.5 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb8wap.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 8wap.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/wa/8wap ftp://data.pdbj.org/pub/pdb/validation_reports/wa/8wap | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 37400MC ![]() 8wakC ![]() 8walC ![]() 8wanC ![]() 8waoC ![]() 8waqC ![]() 8warC ![]() 8wasC ![]() 8watC ![]() 8wauC ![]() 8wavC ![]() 8wawC ![]() 8waxC ![]() 8wayC ![]() 8wazC ![]() 8wb0C M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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| 1 |
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Components
+Protein , 4 types, 4 molecules 0PUz
+General transcription factor IIH subunit ... , 5 types, 5 molecules 12345
+General transcription and DNA repair factor IIH helicase subunit ... , 2 types, 2 molecules 67
+Transcription initiation factor ... , 17 types, 23 molecules ABDdEeFfGHIiJjLlOQRVckm
+General transcription factor IIF subunit ... , 2 types, 2 molecules ST
+DNA chain , 2 types, 2 molecules XY
+DNA-directed RNA polymerase ... , 9 types, 9 molecules opqrstuwy
+DNA-directed RNA polymerases I, II, and III subunit ... , 2 types, 2 molecules vx
+Protein/peptide / RNA chain , 2 types, 2 molecules NZ
+Non-polymers , 4 types, 20 molecules 






+Details
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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| Source (natural) |
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| Source (recombinant) |
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| Buffer solution | pH: 7.9 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1500 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| CTF correction | Type: NONE |
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| 3D reconstruction | Resolution: 5.85 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 4867 / Symmetry type: POINT |
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About Yorodumi



Homo sapiens (human)
Amanita phalloides (death cap)

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FIELD EMISSION GUN