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Yorodumi- PDB-7xti: RNA polymerase II elongation complex transcribing a nucleosome (E... -
+Open data
-Basic information
Entry | Database: PDB / ID: 7xti | ||||||||||||||||||||||||
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Title | RNA polymerase II elongation complex transcribing a nucleosome (EC58hex) | ||||||||||||||||||||||||
Components |
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Keywords | TRANSCRIPTION/DNA/RNA / chromatin / nucleosome / TRANSCRIPTION / TRANSCRIPTION-DNA-RNA complex | ||||||||||||||||||||||||
Function / homology | Function and homology information constitutive heterochromatin formation / FACT complex / RNA polymerase II C-terminal domain phosphoserine binding / regulation of septum digestion after cytokinesis / Cdc73/Paf1 complex / histone chaperone activity / siRNA-mediated pericentric heterochromatin formation / negative regulation of chromosome condensation / DSIF complex / Barr body ...constitutive heterochromatin formation / FACT complex / RNA polymerase II C-terminal domain phosphoserine binding / regulation of septum digestion after cytokinesis / Cdc73/Paf1 complex / histone chaperone activity / siRNA-mediated pericentric heterochromatin formation / negative regulation of chromosome condensation / DSIF complex / Barr body / regulation of centromere complex assembly / regulation of transcription elongation by RNA polymerase II / nucleosome organization / chromatin-protein adaptor activity / pericentric heterochromatin formation / RPB4-RPB7 complex / inner kinetochore / transcription elongation factor activity / muscle cell differentiation / oocyte maturation / : / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / poly(A)+ mRNA export from nucleus / transcription elongation-coupled chromatin remodeling / termination of RNA polymerase II transcription / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / termination of RNA polymerase III transcription / nucleus organization / transcription initiation at RNA polymerase III promoter / termination of RNA polymerase I transcription / RNA polymerase II complex binding / transcription initiation at RNA polymerase I promoter / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / RNA polymerase I activity / positive regulation of translational initiation / chromosome, centromeric region / spermatid development / : / negative regulation of tumor necrosis factor-mediated signaling pathway / subtelomeric heterochromatin formation / RNA polymerase II core promoter sequence-specific DNA binding / single fertilization / transcription elongation by RNA polymerase I / negative regulation of megakaryocyte differentiation / tRNA transcription by RNA polymerase III / RNA polymerase I complex / RNA polymerase III complex / protein localization to CENP-A containing chromatin / nucleosome binding / translation elongation factor activity / RNA polymerase II, core complex / pericentric heterochromatin / Replacement of protamines by nucleosomes in the male pronucleus / transcription-coupled nucleotide-excision repair / CENP-A containing nucleosome / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / translation initiation factor binding / Deposition of new CENPA-containing nucleosomes at the centromere / nucleosomal DNA binding / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Inhibition of DNA recombination at telomere / telomere organization / Meiotic synapsis / embryo implantation / RNA Polymerase I Promoter Opening / 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 / SIRT1 negatively regulates rRNA expression / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / innate immune response in mucosa / transcription elongation factor complex / PRC2 methylates histones and DNA / regulation of DNA-templated transcription elongation / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / HDACs deacetylate histones / RNA Polymerase I Promoter Escape / transcription initiation at RNA polymerase II promoter / Nonhomologous End-Joining (NHEJ) / positive regulation of transcription elongation by RNA polymerase II / Transcriptional regulation by small RNAs / lipopolysaccharide binding / transcription elongation by RNA polymerase II / P-body / Formation of the beta-catenin:TCF transactivating complex / 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 / G2/M DNA damage checkpoint / HDMs demethylate histones / B-WICH complex positively regulates rRNA expression Similarity search - Function | ||||||||||||||||||||||||
Biological species | Komagataella phaffii (fungus) Homo sapiens (human) synthetic construct (others) | ||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å | ||||||||||||||||||||||||
Authors | Ehara, H. / Kujirai, T. / Shirouzu, M. / Kurumizaka, H. / Sekine, S. | ||||||||||||||||||||||||
Funding support | Japan, 7items
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Citation | Journal: Science / Year: 2022 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: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7xti.cif.gz | 1.8 MB | Display | PDBx/mmCIF format |
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PDB format | pdb7xti.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 7xti.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7xti_validation.pdf.gz | 1.7 MB | Display | wwPDB validaton report |
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Full document | 7xti_full_validation.pdf.gz | 1.8 MB | Display | |
Data in XML | 7xti_validation.xml.gz | 210.5 KB | Display | |
Data in CIF | 7xti_validation.cif.gz | 347.1 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/xt/7xti ftp://data.pdbj.org/pub/pdb/validation_reports/xt/7xti | HTTPS FTP |
-Related structure data
Related structure data | 33450MC 7xn7C 7xseC 7xsxC 7xszC 7xt7C 7xtdC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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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, 13 molecules Fnqruvxaebfgh
+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 |
-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 |
-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) |
-Processing
CTF correction | Type: NONE |
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3D reconstruction | Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 29919 / Symmetry type: POINT |