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- EMDB-3383: Transcription initiation complex structures elucidate DNA opening (CC) -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-3383 | |||||||||
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Title | Transcription initiation complex structures elucidate DNA opening (CC) | |||||||||
![]() | sharpened CC map | |||||||||
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![]() | Gene expression / Transcription initiation | |||||||||
Function / homology | ![]() RNA polymerase II complex recruiting activity / transcription open complex formation at RNA polymerase II promoter / TFIIA-class transcription factor complex binding / RNA polymerase III transcription regulatory region sequence-specific DNA binding / RNA polymerase III preinitiation complex assembly / transcription factor TFIIIB complex / RNA polymerase I general transcription initiation factor binding / transcription factor TFIIE complex / regulation of transcription by RNA polymerase III / TFIIF-class transcription factor complex binding ...RNA polymerase II complex recruiting activity / transcription open complex formation at RNA polymerase II promoter / TFIIA-class transcription factor complex binding / RNA polymerase III transcription regulatory region sequence-specific DNA binding / RNA polymerase III preinitiation complex assembly / transcription factor TFIIIB complex / RNA polymerase I general transcription initiation factor binding / transcription factor TFIIE complex / regulation of transcription by RNA polymerase III / TFIIF-class transcription factor complex binding / transcriptional start site selection at RNA polymerase II promoter / RPB4-RPB7 complex / transcription factor TFIIF complex / RNA polymerase I preinitiation complex assembly / transcription factor TFIIA complex / DNA binding, bending / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / RNA Polymerase I Transcription Initiation / transcription preinitiation complex / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / mRNA Capping / RNA polymerase II transcribes snRNA genes / TP53 Regulates Transcription of DNA Repair Genes / termination of RNA polymerase II transcription / 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 / RNA Polymerase II Pre-transcription Events / RNA-templated transcription / transcription factor TFIID complex / RNA polymerase II general transcription initiation factor activity / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / Formation of TC-NER Pre-Incision Complex / termination of RNA polymerase III transcription / RNA Polymerase I Promoter Escape / termination of RNA polymerase I transcription / transcription initiation at RNA polymerase III promoter / nucleolar large rRNA transcription by RNA polymerase I / Gap-filling DNA repair synthesis and ligation in TC-NER / transcription initiation at RNA polymerase I promoter / RNA polymerase II complex binding / Estrogen-dependent gene expression / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / transcription by RNA polymerase I / nuclear-transcribed mRNA catabolic process / positive regulation of translational initiation / transcription by RNA polymerase III / protein phosphatase activator activity / Dual incision in TC-NER / positive regulation of transcription initiation by RNA polymerase II / RNA polymerase I complex / tRNA transcription by RNA polymerase III / translesion synthesis / RNA polymerase III complex / transcription elongation by RNA polymerase I / RNA polymerase II core promoter sequence-specific DNA binding / transcription-coupled nucleotide-excision repair / RNA polymerase II, core complex / : / RNA polymerase II preinitiation complex assembly / translation initiation factor binding / TBP-class protein binding / DNA-directed RNA polymerase activity / positive regulation of transcription elongation by RNA polymerase II / transcription initiation at RNA polymerase II promoter / DNA-templated transcription initiation / transcription coregulator activity / transcription elongation by RNA polymerase II / P-body / ribonucleoside binding / : / : / : / : / : / : / DNA-directed RNA polymerase / mRNA processing / cytoplasmic stress granule / disordered domain specific binding / peroxisome / ribosome biogenesis / single-stranded DNA binding / DNA-binding transcription factor binding / transcription regulator complex / RNA polymerase II-specific DNA-binding transcription factor binding / transcription by RNA polymerase II / nucleic acid binding / single-stranded RNA binding / protein dimerization activity / negative regulation of DNA-templated transcription / nucleotide binding / mRNA binding / chromatin binding / regulation of DNA-templated transcription / nucleolus Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 8.8 Å | |||||||||
![]() | Plaschka C / Hantsche M / Dienemann C / Burzinski C / Plitzko J / Cramer P | |||||||||
![]() | ![]() Title: Transcription initiation complex structures elucidate DNA opening. Authors: C Plaschka / M Hantsche / C Dienemann / C Burzinski / J Plitzko / P Cramer / ![]() Abstract: Transcription of eukaryotic protein-coding genes begins with assembly of the RNA polymerase (Pol) II initiation complex and promoter DNA opening. Here we report cryo-electron microscopy (cryo-EM) ...Transcription of eukaryotic protein-coding genes begins with assembly of the RNA polymerase (Pol) II initiation complex and promoter DNA opening. Here we report cryo-electron microscopy (cryo-EM) structures of yeast initiation complexes containing closed and open DNA at resolutions of 8.8 Å and 3.6 Å, respectively. DNA is positioned and retained over the Pol II cleft by a network of interactions between the TATA-box-binding protein TBP and transcription factors TFIIA, TFIIB, TFIIE, and TFIIF. DNA opening occurs around the tip of the Pol II clamp and the TFIIE 'extended winged helix' domain, and can occur in the absence of TFIIH. Loading of the DNA template strand into the active centre may be facilitated by movements of obstructing protein elements triggered by allosteric binding of the TFIIE 'E-ribbon' domain. The results suggest a unified model for transcription initiation with a key event, the trapping of open promoter DNA by extended protein-protein and protein-DNA contacts. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 94.2 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 14.2 KB 14.2 KB | Display Display | ![]() |
Images | ![]() | 108.9 KB | ||
Others | ![]() | 92.8 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 250.5 KB | Display | ![]() |
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Full document | ![]() | 249.6 KB | Display | |
Data in XML | ![]() | 6 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 5fz5MC ![]() 3375C ![]() 3376C ![]() 3377C ![]() 3378C ![]() 3379C ![]() 3380C ![]() 3381C ![]() 3382C ![]() 5fywC ![]() 5ip7C ![]() 5ip9C M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | sharpened CC map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.35 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Supplemental map: emd 3383 additional 1.map
File | emd_3383_additional_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : yeast Pol II transcription initiation complex (closed DNA)
Entire | Name: yeast Pol II transcription initiation complex (closed DNA) |
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Components |
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-Supramolecule #1000: yeast Pol II transcription initiation complex (closed DNA)
Supramolecule | Name: yeast Pol II transcription initiation complex (closed DNA) type: sample / ID: 1000 / Oligomeric state: Monomer / Number unique components: 7 |
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Molecular weight | Theoretical: 890 KDa |
-Macromolecule #1: DNA-directed RNA polymerase II
Macromolecule | Name: DNA-directed RNA polymerase II / type: protein_or_peptide / ID: 1 / Name.synonym: RNA polymerase II / Number of copies: 1 / Recombinant expression: No |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 513 KDa |
-Macromolecule #2: Transcription Factor IIA
Macromolecule | Name: Transcription Factor IIA / type: protein_or_peptide / ID: 2 / Name.synonym: TFIIA / Number of copies: 1 / Recombinant expression: Yes |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 45 KDa |
Recombinant expression | Organism: ![]() ![]() |
-Macromolecule #3: Transcription Factor IIB
Macromolecule | Name: Transcription Factor IIB / type: protein_or_peptide / ID: 3 / Name.synonym: TFIIB / Number of copies: 1 / Recombinant expression: Yes |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 38 KDa |
Recombinant expression | Organism: ![]() ![]() |
-Macromolecule #4: TATA-box-binding protein
Macromolecule | Name: TATA-box-binding protein / type: protein_or_peptide / ID: 4 / Name.synonym: TBP, SPT15 / Number of copies: 1 / Recombinant expression: Yes |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 27 KDa |
Recombinant expression | Organism: ![]() ![]() |
-Macromolecule #5: Transcription Factor IIE
Macromolecule | Name: Transcription Factor IIE / type: protein_or_peptide / ID: 5 / Name.synonym: TFIIE / Number of copies: 1 / Recombinant expression: Yes |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 91 KDa |
Recombinant expression | Organism: ![]() ![]() |
-Macromolecule #6: Transcription Factor IIF
Macromolecule | Name: Transcription Factor IIF / type: protein_or_peptide / ID: 6 / Name.synonym: TFIIF / Number of copies: 1 / Recombinant expression: Yes |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 129 KDa |
Recombinant expression | Organism: ![]() ![]() |
-Macromolecule #7: synthetic promoter DNA construct (closed)
Macromolecule | Name: synthetic promoter DNA construct (closed) / type: dna / ID: 7 / Details: double-stranded closed promoter DNA / Classification: DNA / Structure: DOUBLE HELIX / Synthetic?: Yes |
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Source (natural) | Organism: unidentified (others) |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.3 mg/mL |
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Buffer | pH: 7.5 Details: 25 mM HEPES-KOH pH 7.5, 150 mM potassium acetate, 2 mM MgCl2, 5 mM DTT |
Grid | Details: R3.5/1 holey carbon grids (Quantifoil) |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Instrument: FEI VITROBOT MARK IV Method: Quantifoil R 3.5/1 holey carbon grids were glow-discharged before deposition of 4.5 microliters of sample. Grids were then blotted for 8.5 s and plunge-frozen in liquid ethane. |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Quantum / Energy filter - Lower energy threshold: 0.0 eV / Energy filter - Upper energy threshold: 20.0 eV |
Date | Jun 20, 2016 |
Image recording | Category: CCD / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Number real images: 959 / Average electron dose: 40 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Calibrated magnification: 37037 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 5.0 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 37000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
CTF correction | Details: Each particle |
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Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Algorithm: OTHER / Resolution.type: BY AUTHOR / Resolution: 8.8 Å / Resolution method: OTHER / Software - Name: RELION / Number images used: 5690 |