+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-12449 | |||||||||||||||
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Title | RNA polymerase II-Spt4/5-nucleosome-Chd1 structure | |||||||||||||||
Map data | Map D | |||||||||||||||
Sample |
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Function / homology | Function and homology information negative regulation of transcription elongation by RNA polymerase I / positive regulation of transcription elongation by RNA polymerase I / regulation of transcription-coupled nucleotide-excision repair / nucleolar chromatin / regulation of transcriptional start site selection at RNA polymerase II promoter / negative regulation of DNA-templated DNA replication / regulation of rRNA processing / RNA polymerase I core binding / regulation of chromatin organization / intracellular mRNA localization ...negative regulation of transcription elongation by RNA polymerase I / positive regulation of transcription elongation by RNA polymerase I / regulation of transcription-coupled nucleotide-excision repair / nucleolar chromatin / regulation of transcriptional start site selection at RNA polymerase II promoter / negative regulation of DNA-templated DNA replication / regulation of rRNA processing / RNA polymerase I core binding / regulation of chromatin organization / intracellular mRNA localization / DSIF complex / snRNP binding / nucleosome organization / rDNA binding / RNA polymerase I general transcription initiation factor binding / SLIK (SAGA-like) complex / RPB4-RPB7 complex / : / U4 snRNA binding / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / ATP-dependent chromatin remodeler activity / positive regulation of DNA-templated transcription, elongation / sister chromatid cohesion / SAGA complex / RNA Polymerase I Transcription Initiation / : / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / transcription elongation-coupled chromatin remodeling / 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 / Formation of TC-NER Pre-Incision Complex / termination of RNA polymerase II transcription / RNA polymerase II transcribes snRNA genes / RNA Polymerase I Promoter Escape / TP53 Regulates Transcription of DNA Repair Genes / Estrogen-dependent gene expression / 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-templated transcription / termination of RNA polymerase III transcription / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / RNA Polymerase II Pre-transcription Events / spliceosomal complex assembly / Dual incision in TC-NER / RNA polymerase II complex binding / RNA polymerase III activity / RNA polymerase I activity / termination of RNA polymerase I transcription / transcription initiation at RNA polymerase III promoter / nucleolar large rRNA transcription by RNA polymerase I / tRNA transcription by RNA polymerase III / Gap-filling DNA repair synthesis and ligation in TC-NER / transcription initiation at RNA polymerase I promoter / transcription elongation by RNA polymerase I / positive regulation of translational initiation / chromosome, centromeric region / transcription-coupled nucleotide-excision repair / RNA polymerase II activity / U5 snRNA binding / translesion synthesis / RNA polymerase I complex / transcription by RNA polymerase I / RNA polymerase III complex / transcription by RNA polymerase III / ATP-dependent activity, acting on DNA / RNA polymerase II, core complex / U2 snRNA binding / U6 snRNA binding / positive regulation of autophagy / translation initiation factor binding / U1 snRNA binding / methylated histone binding / helicase activity / transcription elongation by RNA polymerase II / P-body / transcription initiation at RNA polymerase II promoter / DNA-templated transcription initiation / positive regulation of transcription elongation by RNA polymerase II / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / chromatin DNA binding / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / peroxisome / DNA-directed RNA polymerase / cytoplasmic stress granule / structural constituent of chromatin / nucleosome / nucleosome assembly / ribosome biogenesis / single-stranded DNA binding / chromosome / histone binding / transcription by RNA polymerase II / nucleic acid binding / single-stranded RNA binding Similarity search - Function | |||||||||||||||
Biological species | Baker's yeast (brewer's yeast) / Xenopus laevis (African clawed frog) / Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast) / Saccharomyces cerevisiae (brewer's yeast) / synthetic construct (others) | |||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.9 Å | |||||||||||||||
Authors | Farnung L / Ochmann M / Engeholm M / Cramer P | |||||||||||||||
Funding support | European Union, Germany, 4 items
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Citation | Journal: Nat Struct Mol Biol / Year: 2021 Title: Structural basis of nucleosome transcription mediated by Chd1 and FACT. Authors: Lucas Farnung / Moritz Ochmann / Maik Engeholm / Patrick Cramer / Abstract: Efficient transcription of RNA polymerase II (Pol II) through nucleosomes requires the help of various factors. Here we show biochemically that Pol II transcription through a nucleosome is ...Efficient transcription of RNA polymerase II (Pol II) through nucleosomes requires the help of various factors. Here we show biochemically that Pol II transcription through a nucleosome is facilitated by the chromatin remodeler Chd1 and the histone chaperone FACT when the elongation factors Spt4/5 and TFIIS are present. We report cryo-EM structures of transcribing Saccharomyces cerevisiae Pol II-Spt4/5-nucleosome complexes with bound Chd1 or FACT. In the first structure, Pol II transcription exposes the proximal histone H2A-H2B dimer that is bound by Spt5. Pol II has also released the inhibitory DNA-binding region of Chd1 that is poised to pump DNA toward Pol II. In the second structure, Pol II has generated a partially unraveled nucleosome that binds FACT, which excludes Chd1 and Spt5. These results suggest that Pol II progression through a nucleosome activates Chd1, enables FACT binding and eventually triggers transfer of FACT together with histones to upstream DNA. | |||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_12449.map.gz | 220.2 MB | EMDB map data format | |
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Header (meta data) | emd-12449-v30.xml emd-12449.xml | 37.4 KB 37.4 KB | Display Display | EMDB header |
Images | emd_12449.png | 93.4 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-12449 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-12449 | HTTPS FTP |
-Related structure data
Related structure data | 7nkxMC 7nkyC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_12449.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Map D | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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
-Sample components
+Entire : RNA polymerase II-Spt4/5-Chd1-nucleosome
+Supramolecule #1: RNA polymerase II-Spt4/5-Chd1-nucleosome
+Macromolecule #1: DNA-directed RNA polymerase II subunit RPB1
+Macromolecule #2: DNA-directed RNA polymerase II subunit RPB2
+Macromolecule #3: DNA-directed RNA polymerase II subunit RPB3
+Macromolecule #4: DNA-directed RNA polymerases I, II, and III subunit RPABC1
+Macromolecule #5: DNA-directed RNA polymerases I, II, and III subunit RPABC2
+Macromolecule #6: DNA-directed RNA polymerases I, II, and III subunit RPABC3
+Macromolecule #7: DNA-directed RNA polymerase II subunit RPB9
+Macromolecule #8: DNA-directed RNA polymerases I, II, and III subunit RPABC5
+Macromolecule #9: DNA-directed RNA polymerase II subunit RPB11
+Macromolecule #10: DNA-directed RNA polymerases I, II, and III subunit RPABC4
+Macromolecule #11: Histone H3.2
+Macromolecule #12: Histone H4
+Macromolecule #13: Histone H2A type 1
+Macromolecule #14: Histone H2B 1.1
+Macromolecule #17: Chromo domain-containing protein 1
+Macromolecule #19: Chromatin elongation factor SPT4
+Macromolecule #20: Transcription elongation factor SPT5
+Macromolecule #21: DNA-directed RNA polymerase II subunit RPB4
+Macromolecule #22: DNA-directed RNA polymerase II subunit RPB7
+Macromolecule #15: DNA (139-MER)
+Macromolecule #16: DNA (128-MER)
+Macromolecule #18: RNA
+Macromolecule #23: ZINC ION
+Macromolecule #24: MAGNESIUM ION
+Macromolecule #25: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #26: BERYLLIUM TRIFLUORIDE ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELDBright-field microscopy |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 39.0 e/Å2 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
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Final angle assignment | Type: MAXIMUM LIKELIHOOD |
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 30876 |