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- EMDB-37411: De novo transcribing complex 17 (TC17), the early elongation comp... -
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Open data
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Basic information
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Title | De novo transcribing complex 17 (TC17), the early elongation complex with Pol II positioned 17nt downstream of TSS | |||||||||
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![]() | transcribing complex / de novo transcription initiation / early elongation complex (EEC) / TRANSCRIPTION | |||||||||
Function / homology | ![]() phosphatase activator activity / TFIIF-class transcription factor complex binding / transcription factor TFIIF complex / 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 ...phosphatase activator activity / TFIIF-class transcription factor complex binding / transcription factor TFIIF complex / 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 / nuclear lumen / RNA polymerase II general transcription initiation factor binding / Abortive elongation of HIV-1 transcript in the absence of Tat / FGFR2 alternative splicing / Viral Messenger RNA Synthesis / Signaling by FGFR2 IIIa TM / transcription factor TFIID complex / RNA polymerase II general transcription initiation factor 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 / 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 / mRNA Splicing - Minor Pathway / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / Processing of Capped Intron-Containing Pre-mRNA / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / RNA polymerase II transcribes snRNA genes / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / RNA polymerase I complex / tRNA transcription by RNA polymerase III / RNA polymerase III complex / Formation of HIV elongation complex in the absence of HIV Tat / transcription-coupled nucleotide-excision repair / RNA polymerase II, core complex / : / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / RNA Polymerase II Pre-transcription Events / DNA-directed RNA polymerase activity / negative regulation of protein binding / mRNA Splicing - Major Pathway / DNA-directed RNA polymerase complex / positive regulation of transcription elongation by RNA polymerase II / promoter-specific chromatin binding / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / DNA-templated transcription initiation / transcription elongation by RNA polymerase II / response to virus / ribonucleoside binding / fibrillar center / : / : / : / : / : / : / DNA-directed RNA polymerase / microtubule cytoskeleton / cell junction / toxin activity / protein phosphatase binding / Estrogen-dependent gene expression / forked DNA-dependent helicase activity / single-stranded 3'-5' DNA helicase activity / four-way junction helicase activity / double-stranded DNA helicase activity / transcription by RNA polymerase II / nucleic acid binding / protein dimerization activity / protein domain specific binding / intracellular membrane-bounded organelle / nucleotide binding / DNA-templated transcription Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.94 Å | |||||||||
![]() | Chen X / Liu W / Wang Q / Wang X / Ren Y / Qu X / Li W / Xu Y | |||||||||
Funding support | 1 items
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![]() | ![]() Title: 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. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 2 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 47.9 KB 47.9 KB | Display Display | ![]() |
Images | ![]() | 156.7 KB | ||
Filedesc metadata | ![]() | 10.9 KB | ||
Others | ![]() ![]() ![]() | 74.4 MB 69.9 MB 69.9 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 665.6 KB | Display | ![]() |
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Full document | ![]() | 665.2 KB | Display | |
Data in XML | ![]() | 14 KB | Display | |
Data in CIF | ![]() | 16.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8wb0MC ![]() 8wakC ![]() 8walC ![]() 8wanC ![]() 8waoC ![]() 8wapC ![]() 8waqC ![]() 8warC ![]() 8wasC ![]() 8watC ![]() 8wauC ![]() 8wavC ![]() 8wawC ![]() 8waxC ![]() 8wayC ![]() 8wazC C: citing same article ( M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.334 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: Overall map of TC17
File | emd_37411_additional_1.map | ||||||||||||
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Annotation | Overall map of TC17 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_37411_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_37411_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
+Entire : Structure of transcribing complex 17 (TC17), the early elongation...
+Supramolecule #1: Structure of transcribing complex 17 (TC17), the early elongation...
+Supramolecule #2: RNA POLYMERASE II
+Supramolecule #3: TFIIF
+Supramolecule #4: DNA
+Supramolecule #5: RNA
+Supramolecule #6: Alpha-amanitin
+Macromolecule #1: Alpha-amanitin
+Macromolecule #2: General transcription factor IIF subunit 1
+Macromolecule #3: General transcription factor IIF subunit 2
+Macromolecule #7: DNA-directed RNA polymerase subunit
+Macromolecule #8: DNA-directed RNA polymerase subunit beta
+Macromolecule #9: DNA-directed RNA polymerase II subunit RPB3
+Macromolecule #10: DNA-directed RNA polymerase II subunit RPB4
+Macromolecule #11: DNA-directed RNA polymerase II subunit E
+Macromolecule #12: DNA-directed RNA polymerase II subunit F
+Macromolecule #13: DNA-directed RNA polymerase II subunit RPB7
+Macromolecule #14: DNA-directed RNA polymerases I, II, and III subunit RPABC3
+Macromolecule #15: DNA-directed RNA polymerase II subunit RPB9
+Macromolecule #16: DNA-directed RNA polymerases I, II, and III subunit RPABC5
+Macromolecule #17: DNA-directed RNA polymerase II subunit RPB11-a
+Macromolecule #18: RPB12
+Macromolecule #4: non-template DNA
+Macromolecule #5: template DNA
+Macromolecule #6: RNA
+Macromolecule #19: ZINC ION
+Macromolecule #20: MAGNESIUM ION
+Macromolecule #21: [[(2~{S},3~{R},4~{S},5~{R})-5-(2-azanyl-6-oxidanylidene-3~{H}-pur...
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.9 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.5 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.94 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 371634 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |