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Yorodumi- EMDB-14996: Structure of SNAPc:TBP-TFIIA-TFIIB sub-complex bound to U5 snRNA ... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-14996 | |||||||||||||||
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Title | Structure of SNAPc:TBP-TFIIA-TFIIB sub-complex bound to U5 snRNA promoter | |||||||||||||||
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Sample |
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Keywords | RNA polymerase II / Pol II / PIC / SNAPc / snRNA / U5 promoter / TRANSCRIPTION | |||||||||||||||
Function / homology | Function and homology information snRNA-activating protein complex / snRNA transcription / snRNA transcription by RNA polymerase III / bent DNA binding / RNA polymerase III type 3 promoter sequence-specific DNA binding / positive regulation of core promoter binding / RNA polymerase II core complex assembly / meiotic sister chromatid cohesion / 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 / RNA polymerase III type 3 promoter sequence-specific DNA binding / positive regulation of core promoter binding / RNA polymerase II core complex assembly / meiotic sister chromatid cohesion / RNA polymerase transcription factor SL1 complex / snRNA transcription by RNA polymerase II / RNA polymerase III general transcription initiation factor activity / 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 / transcriptional start site selection at RNA polymerase II promoter / RNA Polymerase III Transcription Initiation From Type 3 Promoter / RNA Polymerase III Abortive And Retractive Initiation / transcription factor TFIIA complex / female germ cell nucleus / male pronucleus / female pronucleus / RNA polymerase II general transcription initiation factor binding / germinal vesicle / RNA Polymerase I Transcription Termination / transcription preinitiation complex / nuclear thyroid hormone receptor binding / transcription factor TFIID complex / RNA polymerase II general transcription initiation factor activity / cell division site / protein acetylation / 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 / RNA polymerase II complex binding / acetyltransferase activity / RNA Polymerase I Transcription Initiation / aryl hydrocarbon receptor binding / viral transcription / TFIIB-class transcription factor binding / transcription by RNA polymerase III / RNA polymerase II transcribes snRNA genes / positive regulation of transcription initiation by RNA polymerase II / RNA polymerase II core promoter sequence-specific DNA binding / spindle assembly / core promoter sequence-specific DNA binding / histone acetyltransferase activity / RNA polymerase II preinitiation complex assembly / histone acetyltransferase / RNA Polymerase II Pre-transcription Events / TBP-class protein binding / SIRT1 negatively regulates rRNA expression / protein-DNA complex / male germ cell nucleus / DNA-templated transcription initiation / promoter-specific chromatin binding / transcription initiation at RNA polymerase II promoter / RNA Polymerase I Promoter Escape / mRNA transcription by RNA polymerase II / NoRC negatively regulates rRNA expression / euchromatin / B-WICH complex positively regulates rRNA expression / kinetochore / RNA polymerase II transcription regulator complex / cell junction / chromosome / spermatogenesis / DNA-binding transcription factor binding / RNA polymerase II-specific DNA-binding transcription factor binding / Estrogen-dependent gene expression / Regulation of TP53 Activity through Phosphorylation / sequence-specific DNA binding / transcription by RNA polymerase II / nuclear body / transcription cis-regulatory region binding / protein heterodimerization activity / RNA polymerase II cis-regulatory region sequence-specific DNA binding / chromatin / nucleolus / enzyme binding / protein homodimerization activity / positive regulation of transcription by RNA polymerase II / protein-containing complex / DNA binding / zinc ion binding / nucleoplasm / nucleus / cytosol / cytoplasm Similarity search - Function | |||||||||||||||
Biological species | Homo sapiens (human) | |||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||||||||
Authors | Rengachari S / Schilbach S / Kaliyappan T / Gouge J / Zumer K / Schwarz J / Urlaub H / Dienemann C / Vannini A / Cramer P | |||||||||||||||
Funding support | Germany, United Kingdom, 4 items
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Citation | Journal: Nat Struct Mol Biol / Year: 2022 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. | |||||||||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_14996.map.gz | 203.2 MB | EMDB map data format | |
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Header (meta data) | emd-14996-v30.xml emd-14996.xml | 31.8 KB 31.8 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_14996_fsc.xml | 14.1 KB | Display | FSC data file |
Images | emd_14996.png | 161.1 KB | ||
Masks | emd_14996_msk_1.map | 244.1 MB | Mask map | |
Filedesc metadata | emd-14996.cif.gz | 8.5 KB | ||
Others | emd_14996_additional_1.map.gz emd_14996_half_map_1.map.gz emd_14996_half_map_2.map.gz | 142.4 MB 195.2 MB 195.2 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-14996 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-14996 | HTTPS FTP |
-Validation report
Summary document | emd_14996_validation.pdf.gz | 862 KB | Display | EMDB validaton report |
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Full document | emd_14996_full_validation.pdf.gz | 861.5 KB | Display | |
Data in XML | emd_14996_validation.xml.gz | 21.6 KB | Display | |
Data in CIF | emd_14996_validation.cif.gz | 28.1 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-14996 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-14996 | HTTPS FTP |
-Related structure data
Related structure data | 7zwcMC 7zwdC 7zx7C 7zx8C 7zxeC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_14996.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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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
File | emd_14996_msk_1.map | ||||||||||||
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Density Histograms |
-Additional map: #1
File | emd_14996_additional_1.map | ||||||||||||
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Density Histograms |
-Half map: #1
File | emd_14996_half_map_1.map | ||||||||||||
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Density Histograms |
-Half map: #2
File | emd_14996_half_map_2.map | ||||||||||||
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Density Histograms |
-Sample components
+Entire : General transcription factors and SNAPc bound to U5 promoter
+Supramolecule #1: General transcription factors and SNAPc bound to U5 promoter
+Supramolecule #2: SNAPc
+Supramolecule #3: TATA-box-binding protein and transcription factors
+Supramolecule #4: Promoter
+Macromolecule #1: Transcription initiation factor IIB
+Macromolecule #2: TATA-box-binding protein
+Macromolecule #3: Transcription initiation factor IIA subunit 1
+Macromolecule #4: Transcription initiation factor IIA subunit 2
+Macromolecule #5: snRNA-activating protein complex subunit 1
+Macromolecule #6: snRNA-activating protein complex subunit 3
+Macromolecule #7: snRNA-activating protein complex subunit 4
+Macromolecule #8: snRNA-activating protein complex subunit 5
+Macromolecule #9: Non-template strand
+Macromolecule #10: Template strand
+Macromolecule #11: ZINC ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 51.93 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
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 |