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- EMDB-15009: Structure of SNAPc containing Pol II pre-initiation complex bound... -
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Basic information
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Title | Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC) | |||||||||||||||
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![]() | RNA polymerase II / Pol II / PIC / SNAPc / snRNA / U1 promoter / TRANSCRIPTION | |||||||||||||||
Function / homology | ![]() snRNA-activating protein complex / snRNA transcription / snRNA transcription by RNA polymerase III / bent DNA binding / positive regulation of core promoter binding / RNA polymerase II core complex assembly / meiotic sister chromatid cohesion / RNA polymerase III type 3 promoter sequence-specific DNA binding / RNA polymerase transcription factor SL1 complex / snRNA transcription by RNA polymerase II ...snRNA-activating protein complex / snRNA transcription / snRNA transcription by RNA polymerase III / bent DNA binding / positive regulation of core promoter binding / RNA polymerase II core complex assembly / meiotic sister chromatid cohesion / RNA polymerase III type 3 promoter sequence-specific DNA binding / RNA polymerase transcription factor SL1 complex / snRNA transcription by RNA polymerase II / RNA polymerase III general transcription initiation factor activity / transcriptional start site selection at RNA polymerase II promoter / RNA polymerase I core promoter sequence-specific DNA binding / 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 / RNA Polymerase I Transcription Termination / transcription preinitiation complex / protein acetylation / transcription factor TFIID complex / RNA polymerase II general transcription initiation factor activity / cell division site / 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 / transcription initiation at RNA polymerase III promoter / acetyltransferase activity / RNA polymerase II complex binding / viral transcription / aryl hydrocarbon receptor binding / TFIIB-class transcription factor binding / RNA Polymerase I Transcription Initiation / transcription by RNA polymerase III / RNA polymerase II transcribes snRNA genes / positive regulation of transcription initiation by RNA polymerase II / spindle assembly / RNA polymerase II core promoter sequence-specific DNA binding / core promoter sequence-specific DNA binding / histone H4K16 acetyltransferase activity / histone H3K56 acetyltransferase activity / histone H3K23 acetyltransferase activity / histone H2AK5 acetyltransferase activity / histone H2AK9 acetyltransferase activity / histone H2BK5 acetyltransferase activity / histone H2BK12 acetyltransferase activity / histone H3K4 acetyltransferase activity / histone H3K27 acetyltransferase activity / histone H3K36 acetyltransferase activity / histone H3K122 acetyltransferase activity / histone H3K18 acetyltransferase activity / histone H3K9 acetyltransferase activity / histone H3K14 acetyltransferase activity / histone H4K5 acetyltransferase activity / histone H4K8 acetyltransferase activity / histone H4K12 acetyltransferase activity / RNA polymerase II preinitiation complex assembly / histone acetyltransferase / RNA Polymerase II Pre-transcription Events / TBP-class protein binding / male germ cell nucleus / SIRT1 negatively regulates rRNA expression / promoter-specific chromatin binding / transcription initiation at RNA polymerase II promoter / DNA-templated transcription initiation / RNA Polymerase I Promoter Escape / mRNA transcription by RNA polymerase II / protein-DNA complex / euchromatin / NoRC negatively regulates rRNA expression / B-WICH complex positively regulates rRNA expression / kinetochore / RNA polymerase II transcription regulator complex / cell junction / chromosome / DNA-binding transcription factor binding / spermatogenesis / Regulation of TP53 Activity through Phosphorylation / RNA polymerase II-specific DNA-binding transcription factor binding / Estrogen-dependent gene expression / sequence-specific DNA binding / transcription by RNA polymerase II / nuclear body / transcription cis-regulatory region binding / RNA polymerase II cis-regulatory region sequence-specific DNA binding / protein heterodimerization activity / nucleolus / chromatin / enzyme binding Similarity search - Function | |||||||||||||||
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Method | single particle reconstruction / cryo EM / Resolution: 3.5 Å | |||||||||||||||
![]() | Rengachari S / Schilbach S / Kaliyappan T / Gouge J / Zumer K / Schwarz J / Urlaub H / Dienemann C / Vannini A / Cramer P | |||||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: Structural basis of SNAPc-dependent snRNA transcription initiation by RNA polymerase II. Authors: Srinivasan Rengachari / Sandra Schilbach / Thangavelu Kaliyappan / Jerome Gouge / Kristina Zumer / Juliane Schwarz / Henning Urlaub / Christian Dienemann / Alessandro Vannini / Patrick Cramer / ![]() ![]() ![]() Abstract: RNA polymerase II (Pol II) carries out transcription of both protein-coding and non-coding genes. Whereas Pol II initiation at protein-coding genes has been studied in detail, Pol II initiation at ...RNA polymerase II (Pol II) carries out transcription of both protein-coding and non-coding genes. Whereas Pol II initiation at protein-coding genes has been studied in detail, Pol II initiation at non-coding genes, such as small nuclear RNA (snRNA) genes, is less well understood at the structural level. Here, we study Pol II initiation at snRNA gene promoters and show that the snRNA-activating protein complex (SNAPc) enables DNA opening and transcription initiation independent of TFIIE and TFIIH in vitro. We then resolve cryo-EM structures of the SNAPc-containing Pol IIpre-initiation complex (PIC) assembled on U1 and U5 snRNA promoters. The core of SNAPc binds two turns of DNA and recognizes the snRNA promoter-specific proximal sequence element (PSE), located upstream of the TATA box-binding protein TBP. Two extensions of SNAPc, called wing-1 and wing-2, bind TFIIA and TFIIB, respectively, explaining how SNAPc directs Pol II to snRNA promoters. Comparison of structures of closed and open promoter complexes elucidates TFIIH-independent DNA opening. These results provide the structural basis of Pol II initiation at non-coding RNA gene promoters. #1: ![]() Title: Structural basis of SNAPc-dependent snRNA transcription initiation by RNA polymerase II Authors: Rengachari S / Schilbach S / Kaliyappan T / Gouge J / Zumer K / Schwarz J / Urlaub H / Dienemann C / Vannini A / Cramer P | |||||||||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 141.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 31.1 KB 31.1 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 14.2 KB | Display | ![]() |
Images | ![]() | 152 KB | ||
Masks | ![]() | 244.1 MB | ![]() | |
Filedesc metadata | ![]() | 8.6 KB | ||
Others | ![]() ![]() | 193.9 MB 194.2 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 849.8 KB | Display | ![]() |
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Full document | ![]() | 849.4 KB | Display | |
Data in XML | ![]() | 21 KB | Display | |
Data in CIF | ![]() | 27.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7zxeMC ![]() 7zwcC ![]() 7zwdC ![]() 7zx7C ![]() 7zx8C M: atomic model generated by this map C: citing same article ( |
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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: 1.05 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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-Half map: #2
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Density Histograms |
-Half map: #1
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Projections & Slices |
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Density Histograms |
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Sample components
+Entire : General transcription factors and SNAPc bound to U1 promoter
+Supramolecule #1: General transcription factors and SNAPc bound to U1 promoter
+Supramolecule #2: SNAPc
+Supramolecule #3: TATA-box-binding protein and transcription factors
+Supramolecule #4: Promoter
+Macromolecule #1: Transcription initiation factor IIB
+Macromolecule #3: TATA-box-binding protein
+Macromolecule #5: Transcription initiation factor IIA subunit 1
+Macromolecule #6: Transcription initiation factor IIA subunit 2
+Macromolecule #7: snRNA-activating protein complex subunit 1
+Macromolecule #8: snRNA-activating protein complex subunit 3
+Macromolecule #9: snRNA-activating protein complex subunit 4
+Macromolecule #10: snRNA-activating protein complex subunit 5
+Macromolecule #2: Non-template strand
+Macromolecule #4: Template strand
+Macromolecule #11: ZINC ION
-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 | TFS KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 54.45 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: 0.3 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |