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- EMDB-12620: Focused refinement of the core RNA polymerase II pre-initiation c... -
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Basic information
Entry | Database: EMDB / ID: EMD-12620 | ||||||||||||||||||
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Title | Focused refinement of the core RNA polymerase II pre-initiation complex in a consensus CC state (without ADP-BeF3) | ||||||||||||||||||
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Function / homology | ![]() : / positive regulation of core promoter binding / RNA polymerase II core complex assembly / meiotic sister chromatid cohesion / transcription factor TFIIE complex / RNA polymerase transcription factor SL1 complex / phosphatase activator activity / RNA polymerase III general transcription initiation factor activity / TFIIF-class transcription factor complex binding / transcriptional start site selection at RNA polymerase II promoter ...: / positive regulation of core promoter binding / RNA polymerase II core complex assembly / meiotic sister chromatid cohesion / transcription factor TFIIE complex / RNA polymerase transcription factor SL1 complex / phosphatase activator activity / RNA polymerase III general transcription initiation factor activity / TFIIF-class transcription factor complex binding / transcriptional start site selection at RNA polymerase II promoter / RNA polymerase I core promoter sequence-specific DNA 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 / 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 / transcription factor TFIIA complex / RNA Polymerase III Abortive And Retractive Initiation / female germ cell nucleus / male pronucleus / female pronucleus / germinal vesicle / nuclear thyroid hormone receptor binding / RNA polymerase II general transcription initiation factor binding / Abortive elongation of HIV-1 transcript in the absence of Tat / FGFR2 alternative splicing / RNA Polymerase I Transcription Termination / transcription preinitiation complex / Viral Messenger RNA Synthesis / Signaling by FGFR2 IIIa TM / protein acetylation / transcription factor TFIID complex / RNA polymerase II general transcription initiation factor activity / cell division site / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / 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 / organelle membrane / acetyltransferase activity / mRNA Splicing - Minor Pathway / RNA polymerase II complex binding / viral transcription / aryl hydrocarbon receptor binding / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / TFIIB-class transcription factor binding / RNA Polymerase I Transcription Initiation / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / Processing of Capped Intron-Containing Pre-mRNA / positive regulation of translational initiation / transcription by RNA polymerase III / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / RNA polymerase II transcribes snRNA genes / positive regulation of transcription initiation by RNA polymerase II / 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 / transcription elongation by RNA polymerase I / spindle assembly / Formation of HIV elongation complex in the absence of HIV Tat / RNA polymerase II core promoter sequence-specific DNA binding / transcription-coupled nucleotide-excision repair / core promoter sequence-specific DNA binding / RNA polymerase II, core complex / histone H4K16 acetyltransferase activity / : / histone H3K56 acetyltransferase activity Similarity search - Function | ||||||||||||||||||
Biological species | ![]() ![]() | ||||||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.4 Å | ||||||||||||||||||
![]() | Aibara S / Schilbach S / Cramer P | ||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structures of mammalian RNA polymerase II pre-initiation complexes. Authors: Shintaro Aibara / Sandra Schilbach / Patrick Cramer / ![]() Abstract: The initiation of transcription is a focal point for the regulation of gene activity during mammalian cell differentiation and development. To initiate transcription, RNA polymerase II (Pol II) ...The initiation of transcription is a focal point for the regulation of gene activity during mammalian cell differentiation and development. To initiate transcription, RNA polymerase II (Pol II) assembles with general transcription factors into a pre-initiation complex (PIC) that opens promoter DNA. Previous work provided the molecular architecture of the yeast and human PIC and a topological model for DNA opening by the general transcription factor TFIIH. Here we report the high-resolution cryo-electron microscopy structure of PIC comprising human general factors and Sus scrofa domesticus Pol II, which is 99.9% identical to human Pol II. We determine the structures of PIC with closed and opened promoter DNA at 2.5-2.8 Å resolution, and resolve the structure of TFIIH at 2.9-4.0 Å resolution. We capture the TFIIH translocase XPB in the pre- and post-translocation states, and show that XPB induces and propagates a DNA twist to initiate the opening of DNA approximately 30 base pairs downstream of the TATA box. We also provide evidence that DNA opening occurs in two steps and leads to the detachment of TFIIH from the core PIC, which may stop DNA twisting and enable RNA chain initiation. | ||||||||||||||||||
History |
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Structure visualization
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 268.1 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 17.8 KB 17.8 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 15.8 KB | Display | ![]() |
Images | ![]() | 214.2 KB | ||
Masks | ![]() | 347.6 MB | ![]() | |
Others | ![]() ![]() ![]() | 204.5 MB 278.4 MB 278.4 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 94.6 KB | Display | ![]() |
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Full document | ![]() | 93.7 KB | Display | |
Data in XML | ![]() | 500 B | Display | |
Data in CIF | ![]() | 193 B | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7nvrC ![]() 7nvsC ![]() 7nvtC ![]() 7nvuC ![]() 7nvvC ![]() 7nvwC ![]() 7nvxC ![]() 7nvyC ![]() 7nvzC ![]() 7nw0C 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
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Annotation | Local resolution filtered and sharpened map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.05 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
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Density Histograms |
-Additional map: Local resolution filtered map, unsharpened
File | emd_12620_additional_1.map | ||||||||||||
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Annotation | Local resolution filtered map, unsharpened | ||||||||||||
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Density Histograms |
-Half map: Unfiltered half map 2
File | emd_12620_half_map_1.map | ||||||||||||
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Annotation | Unfiltered half map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Unfiltered half map 1
File | emd_12620_half_map_2.map | ||||||||||||
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Annotation | Unfiltered half map 1 | ||||||||||||
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Density Histograms |
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Sample components
-Entire : RNA polymerase II core pre-initiation complex with closed promoter DNA
Entire | Name: RNA polymerase II core pre-initiation complex with closed promoter DNA |
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Components |
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-Supramolecule #1: RNA polymerase II core pre-initiation complex with closed promoter DNA
Supramolecule | Name: RNA polymerase II core pre-initiation complex with closed promoter DNA type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#22 |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 880 KDa |
-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: 7.5 |
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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 BIOQUANTUM (6k x 4k) / Average electron dose: 41.1 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |