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Yorodumi- 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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Keywords | TRANSCRIPTION / chromatin / nucleosome | ||||||||||||||||||||||||
| Function / homology | Function and homology informationFACT complex / regulation of septum digestion after cytokinesis / RNA polymerase II C-terminal domain phosphoserine binding / Cdc73/Paf1 complex / siRNA-mediated pericentric heterochromatin formation / negative regulation of chromosome condensation / Barr body / : / DSIF complex / RPB4-RPB7 complex ...FACT complex / regulation of septum digestion after cytokinesis / RNA polymerase II C-terminal domain phosphoserine binding / Cdc73/Paf1 complex / siRNA-mediated pericentric heterochromatin formation / negative regulation of chromosome condensation / Barr body / : / DSIF complex / RPB4-RPB7 complex / pericentric heterochromatin formation / inner kinetochore / nucleosome organization / transcription elongation factor activity / chromatin-protein adaptor activity / muscle cell differentiation / oocyte maturation / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / nucleosomal DNA binding / termination of RNA polymerase II transcription / poly(A)+ mRNA export from nucleus / termination of RNA polymerase III transcription / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / nucleus organization / transcription elongation-coupled chromatin remodeling / transcription initiation at RNA polymerase III promoter / termination of RNA polymerase I transcription / transcription initiation at RNA polymerase I promoter / RNA polymerase II complex binding / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / positive regulation of translational initiation / chromosome, centromeric region / spermatid development / negative regulation of tumor necrosis factor-mediated signaling pathway / single fertilization / translation elongation factor activity / subtelomeric heterochromatin formation / RNA polymerase I complex / transcription elongation by RNA polymerase I / RNA polymerase III complex / pericentric heterochromatin / RNA polymerase II core promoter sequence-specific DNA binding / negative regulation of megakaryocyte differentiation / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / protein localization to CENP-A containing chromatin / nucleosome binding / transcription by RNA polymerase I / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / translation initiation factor binding / Packaging Of Telomere Ends / transcription-coupled nucleotide-excision repair / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / embryo implantation / Deposition of new CENPA-containing nucleosomes at the centromere / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / telomere organization / Inhibition of DNA recombination at telomere / RNA Polymerase I Promoter Opening / Meiotic synapsis / Assembly of the ORC complex at the origin of replication / SUMOylation of chromatin organization proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / SIRT1 negatively regulates rRNA expression / HCMV Late Events / regulation of DNA-templated transcription elongation / transcription elongation factor complex / innate immune response in mucosa / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / transcription initiation at RNA polymerase II promoter / HDACs deacetylate histones / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / transcription elongation by RNA polymerase II / Nonhomologous End-Joining (NHEJ) / P-body / RNA Polymerase I Promoter Escape / lipopolysaccharide binding / positive regulation of transcription elongation by RNA polymerase II / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / HDMs demethylate histones / G2/M DNA damage checkpoint / NoRC negatively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / B-WICH complex positively regulates rRNA expression / PKMTs methylate histone lysines / Meiotic recombination / Pre-NOTCH Transcription and Translation / ribonucleoside binding Similarity search - Function | ||||||||||||||||||||||||
| Biological species | Komagataella phaffii (fungus) Homo sapiens (human)synthetic construct (others) | ||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.2 Å | ||||||||||||||||||||||||
Authors | Ehara, H. / Kujirai, T. / Shirouzu, M. / Kurumizaka, H. / Sekine, S. | ||||||||||||||||||||||||
| Funding support | Japan, 7items
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Citation | Journal: Science / Year: 2022Title: 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: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7xt7.cif.gz | 1.9 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb7xt7.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 7xt7.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7xt7_validation.pdf.gz | 1.8 MB | Display | wwPDB validaton report |
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| Full document | 7xt7_full_validation.pdf.gz | 1.8 MB | Display | |
| Data in XML | 7xt7_validation.xml.gz | 225 KB | Display | |
| Data in CIF | 7xt7_validation.cif.gz | 368.5 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/xt/7xt7 ftp://data.pdbj.org/pub/pdb/validation_reports/xt/7xt7 | 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 F&H Search |
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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 


+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
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| Molecular weight | Experimental value: NO | ||||||||||||||||||||||||||||||||||||||||||
| Source (natural) |
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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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| 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 |
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About Yorodumi



Komagataella phaffii (fungus)
Homo sapiens (human)
Japan, 7items
Citation












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FIELD EMISSION GUN