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- PDB-7xt7: RNA polymerase II elongation complex transcribing a nucleosome (EC49B) -
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Open data
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Basic information
Entry | Database: PDB / ID: 7xt7 | ||||||||||||||||||||||||
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Title | RNA polymerase II elongation complex transcribing a nucleosome (EC49B) | ||||||||||||||||||||||||
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![]() | TRANSCRIPTION / chromatin / nucleosome | ||||||||||||||||||||||||
Function / homology | ![]() FACT complex / RNA polymerase II C-terminal domain phosphoserine binding / regulation of septum digestion after cytokinesis / siRNA-mediated pericentric heterochromatin formation / Cdc73/Paf1 complex / DSIF complex / regulation of chromatin organization / negative regulation of chromosome condensation / Barr body / regulation of centromere complex assembly ...FACT complex / RNA polymerase II C-terminal domain phosphoserine binding / regulation of septum digestion after cytokinesis / siRNA-mediated pericentric heterochromatin formation / Cdc73/Paf1 complex / DSIF complex / regulation of chromatin organization / negative regulation of chromosome condensation / Barr body / regulation of centromere complex assembly / nucleosome organization / regulation of transcription elongation by RNA polymerase II / muscle cell differentiation / transcription elongation factor activity / pericentric heterochromatin formation / RPB4-RPB7 complex / inner kinetochore / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / oocyte maturation / transcription elongation-coupled chromatin remodeling / poly(A)+ mRNA export from nucleus / termination of RNA polymerase II transcription / termination of RNA polymerase III transcription / nucleus organization / : / : / termination of RNA polymerase I transcription / RNA polymerase II complex binding / transcription initiation at RNA polymerase III promoter / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / transcription initiation at RNA polymerase I promoter / chromosome, centromeric region / spermatid development / negative regulation of tumor necrosis factor-mediated signaling pathway / single fertilization / subtelomeric heterochromatin formation / transcription elongation by RNA polymerase I / negative regulation of megakaryocyte differentiation / RNA polymerase II core promoter sequence-specific DNA binding / positive regulation of translational initiation / RNA polymerase I complex / RNA polymerase III complex / protein localization to CENP-A containing chromatin / transcription-coupled nucleotide-excision repair / RNA polymerase III activity / RNA polymerase II, core complex / pericentric heterochromatin / translation elongation factor activity / tRNA transcription by RNA polymerase III / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / RNA polymerase I activity / heterochromatin organization / Packaging Of Telomere Ends / RNA polymerase II activity / nucleosome binding / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Deposition of new CENPA-containing nucleosomes at the centromere / nucleosomal DNA binding / translation initiation factor binding / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Inhibition of DNA recombination at telomere / Meiotic synapsis / telomere organization / embryo implantation / RNA Polymerase I Promoter Opening / Assembly of the ORC complex at the origin of replication / SUMOylation of chromatin organization proteins / DNA methylation / Condensation of Prophase Chromosomes / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / SIRT1 negatively regulates rRNA expression / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / transcription elongation factor complex / innate immune response in mucosa / PRC2 methylates histones and DNA / regulation of DNA-templated transcription elongation / Defective pyroptosis / transcription elongation by RNA polymerase II / HDACs deacetylate histones / RNA Polymerase I Promoter Escape / transcription initiation at RNA polymerase II promoter / lipopolysaccharide binding / positive regulation of transcription elongation by RNA polymerase II / Nonhomologous End-Joining (NHEJ) / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / P-body / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / NoRC negatively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / B-WICH complex positively regulates rRNA expression / G2/M DNA damage checkpoint / HDMs demethylate histones / multicellular organism growth / DNA Damage/Telomere Stress Induced Senescence Similarity search - Function | ||||||||||||||||||||||||
Biological species | ![]() ![]() synthetic construct (others) | ||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.2 Å | ||||||||||||||||||||||||
![]() | Ehara, H. / Kujirai, T. / Shirouzu, M. / Kurumizaka, H. / Sekine, S. | ||||||||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis of nucleosome disassembly and reassembly by RNAPII elongation complex with FACT. Authors: Haruhiko Ehara / Tomoya Kujirai / Mikako Shirouzu / Hitoshi Kurumizaka / Shun-Ichi Sekine / ![]() Abstract: During gene transcription, RNA polymerase II (RNAPII) traverses nucleosomes in chromatin, but the mechanism has remained elusive. Using cryo-electron microscopy, we obtained structures of the RNAPII ...During gene transcription, RNA polymerase II (RNAPII) traverses nucleosomes in chromatin, but the mechanism has remained elusive. Using cryo-electron microscopy, we obtained structures of the RNAPII elongation complex (EC) passing through a nucleosome in the presence of the transcription elongation factors Spt6, Spn1, Elf1, Spt4/5, and Paf1C and the histone chaperone FACT (facilitates chromatin transcription). The structures show snapshots of EC progression on DNA mediating downstream nucleosome disassembly, followed by its reassembly upstream of the EC, which is facilitated by FACT. FACT dynamically adapts to successively occurring subnucleosome intermediates, forming an interface with the EC. Spt6, Spt4/5, and Paf1C form a "cradle" at the EC DNA-exit site and support the upstream nucleosome reassembly. These structures explain the mechanism by which the EC traverses nucleosomes while maintaining the chromatin structure and epigenetic information. | ||||||||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1.9 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.6 MB | Display | ![]() |
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Full document | ![]() | 1.6 MB | Display | |
Data in XML | ![]() | 225.4 KB | Display | |
Data in CIF | ![]() | 368.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 33441MC ![]() 7xn7C ![]() 7xseC ![]() 7xsxC ![]() 7xszC ![]() 7xtdC ![]() 7xtiC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
+DNA-directed RNA polymerase ... , 3 types, 3 molecules ABI
+RNA polymerase II ... , 4 types, 4 molecules CDGK
+DNA-directed RNA polymerases I, II, and III subunit ... , 2 types, 2 molecules EH
+Protein , 11 types, 15 molecules Fnqruvxaebfcgdh
+RNA polymerase subunit ABC10- ... , 2 types, 2 molecules JL
+Transcription elongation factor ... , 4 types, 4 molecules MVWm
+DNA chain , 2 types, 2 molecules NT
+RNA chain , 1 types, 1 molecules P
+FACT complex ... , 2 types, 2 molecules jk
+Non-polymers , 2 types, 11 molecules ![](data/chem/img/ZN.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/MG.gif)
+Details
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component |
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Molecular weight | Experimental value: NO | ||||||||||||||||||||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) |
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Buffer solution | pH: 7.5 | ||||||||||||||||||||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: TFS KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 51 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
CTF correction | Type: NONE |
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3D reconstruction | Resolution: 4.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 28511 / Symmetry type: POINT |