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Yorodumi- PDB-8p2i: Cryo-EM structure of Pyrococcus furiosus apo form RNA polymerase ... -
+Open data
-Basic information
Entry | Database: PDB / ID: 8p2i | ||||||
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Title | Cryo-EM structure of Pyrococcus furiosus apo form RNA polymerase contracted clamp conformation with Spt4/5 | ||||||
Components |
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Keywords | TRANSCRIPTION / RNA / Polymerase / Elongation / Complex / Pyrococcus furiosus / Archaea / DNA | ||||||
Function / homology | Function and homology information transcription elongation-coupled chromatin remodeling / RNA polymerase III activity / RNA polymerase II activity / tRNA transcription by RNA polymerase III / RNA polymerase I activity / translation elongation factor activity / DNA-directed RNA polymerase complex / regulation of DNA-templated transcription elongation / DNA-templated transcription initiation / ribonucleoside binding ...transcription elongation-coupled chromatin remodeling / RNA polymerase III activity / RNA polymerase II activity / tRNA transcription by RNA polymerase III / RNA polymerase I activity / translation elongation factor activity / DNA-directed RNA polymerase complex / regulation of DNA-templated transcription elongation / DNA-templated transcription initiation / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / protein dimerization activity / ribosome / structural constituent of ribosome / mRNA binding / nucleotide binding / DNA-templated transcription / regulation of DNA-templated transcription / regulation of transcription by RNA polymerase II / magnesium ion binding / DNA binding / zinc ion binding / cytoplasm Similarity search - Function | ||||||
Biological species | Pyrococcus furiosus DSM 3638 (archaea) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å | ||||||
Authors | Tarau, D.M. / Reichelt, R. / Heiss, F.B. / Pilsl, M. / Hausner, W. / Engel, C. / Grohmann, D. | ||||||
Funding support | Germany, 1items
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Citation | Journal: Nucleic Acids Res / Year: 2024 Title: Structural basis of archaeal RNA polymerase transcription elongation and Spt4/5 recruitment. Authors: Daniela Tarău / Felix Grünberger / Michael Pilsl / Robert Reichelt / Florian Heiß / Sabine König / Henning Urlaub / Winfried Hausner / Christoph Engel / Dina Grohmann / Abstract: Archaeal transcription is carried out by a multi-subunit RNA polymerase (RNAP) that is highly homologous in structure and function to eukaryotic RNAP II. Among the set of basal transcription factors, ...Archaeal transcription is carried out by a multi-subunit RNA polymerase (RNAP) that is highly homologous in structure and function to eukaryotic RNAP II. Among the set of basal transcription factors, only Spt5 is found in all domains of life, but Spt5 has been shaped during evolution, which is also reflected in the heterodimerization of Spt5 with Spt4 in Archaea and Eukaryotes. To unravel the mechanistic basis of Spt4/5 function in Archaea, we performed structure-function analyses using the archaeal transcriptional machinery of Pyrococcus furiosus (Pfu). We report single-particle cryo-electron microscopy reconstructions of apo RNAP and the archaeal elongation complex (EC) in the absence and presence of Spt4/5. Surprisingly, Pfu Spt4/5 also binds the RNAP in the absence of nucleic acids in a distinct super-contracted conformation. We show that the RNAP clamp/stalk module exhibits conformational flexibility in the apo state of RNAP and that the enzyme contracts upon EC formation or Spt4/5 engagement. We furthermore identified a contact of the Spt5-NGN domain with the DNA duplex that stabilizes the upstream boundary of the transcription bubble and impacts Spt4/5 activity in vitro. This study, therefore, provides the structural basis for Spt4/5 function in archaeal transcription and reveals a potential role beyond the well-described support of elongation. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8p2i.cif.gz | 616.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8p2i.ent.gz | 489 KB | Display | PDB format |
PDBx/mmJSON format | 8p2i.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8p2i_validation.pdf.gz | 1.4 MB | Display | wwPDB validaton report |
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Full document | 8p2i_full_validation.pdf.gz | 1.5 MB | Display | |
Data in XML | 8p2i_validation.xml.gz | 93.8 KB | Display | |
Data in CIF | 8p2i_validation.cif.gz | 141.7 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/p2/8p2i ftp://data.pdbj.org/pub/pdb/validation_reports/p2/8p2i | HTTPS FTP |
-Related structure data
Related structure data | 17366MC 8croC 8okiC 8orqC 8rboC 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 subunit ... , 11 types, 11 molecules ABCDEFHKLNP
#1: Protein | Mass: 103612.250 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: rpoA1, rpo1N, PFDSM3638_07875 / Production host: Pyrococcus furiosus DSM 3638 (archaea) References: UniProt: A0A5C0XPL7, DNA-directed RNA polymerase |
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#2: Protein | Mass: 127188.898 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: PF1564 / Production host: Pyrococcus furiosus DSM 3638 (archaea) / References: UniProt: Q8U0M3 |
#3: Protein | Mass: 44468.156 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: rpo1C, rpoA2, PF1562 / Production host: Pyrococcus furiosus DSM 3638 (archaea) / References: UniProt: Q8U0M5, DNA-directed RNA polymerase |
#4: Protein | Mass: 31688.195 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: rpo3, rpoD, PF1647 / Production host: Pyrococcus furiosus DSM 3638 (archaea) / References: UniProt: Q8U0E4, DNA-directed RNA polymerase |
#5: Protein | Mass: 21731.455 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: rpo7 / Production host: Pyrococcus furiosus DSM 3638 (archaea) / References: UniProt: Q8U439 |
#6: Protein | Mass: 14116.311 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: rpo4, rpoF, PF1036 / Production host: Pyrococcus furiosus DSM 3638 (archaea) / References: UniProt: Q8U216, DNA-directed RNA polymerase |
#7: Protein | Mass: 9260.792 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: rpo5, rpoH, PF1565 / Production host: Pyrococcus furiosus DSM 3638 (archaea) / References: UniProt: Q8U0M2, DNA-directed RNA polymerase |
#8: Protein | Mass: 6243.490 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: rpo6, rpoK, PF1642 / Production host: Pyrococcus furiosus DSM 3638 (archaea) / References: UniProt: Q8U0E8, DNA-directed RNA polymerase |
#9: Protein | Mass: 11132.764 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: rpo11, rpoL, PF0050 / Production host: Pyrococcus furiosus DSM 3638 (archaea) / References: UniProt: Q8U4N1, DNA-directed RNA polymerase |
#10: Protein | Mass: 7800.158 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: rpo10, rpoN, PF1643 / Production host: Pyrococcus furiosus DSM 3638 (archaea) / References: UniProt: P60292, DNA-directed RNA polymerase |
#11: Protein/peptide | Mass: 5770.050 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: rpo12, rpoP, PF2009 / Production host: Pyrococcus furiosus DSM 3638 (archaea) / References: UniProt: Q8TZI3, DNA-directed RNA polymerase |
-Transcription elongation factor ... , 2 types, 2 molecules GI
#12: Protein | Mass: 16816.600 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: spt5, PF1990 / Production host: Pyrococcus furiosus DSM 3638 (archaea) / References: UniProt: Q8TZK1 |
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#13: Protein | Mass: 6965.045 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pyrococcus furiosus DSM 3638 (archaea) / Gene: spt4, PF0255 / Production host: Pyrococcus furiosus DSM 3638 (archaea) / References: UniProt: Q8U440 |
-Non-polymers , 2 types, 7 molecules
#14: Chemical | ChemComp-ZN / #15: Chemical | ChemComp-MG / | |
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-Details
Has ligand of interest | Y |
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-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 | Name: Pyrococcus furiosus apo form of RNA polymerase open clamp conformation Type: COMPLEX / Entity ID: #1-#13 / Source: RECOMBINANT |
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Source (natural) | Organism: Pyrococcus furiosus DSM 3638 (archaea) |
Source (recombinant) | Organism: Pyrococcus furiosus DSM 3638 (archaea) |
Buffer solution | pH: 8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Microscopy | Model: JEOL CRYO ARM 200 |
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Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: OTHER |
Electron lens | Mode: OTHER / Nominal defocus max: 2000 nm / Nominal defocus min: 600 nm |
Image recording | Electron dose: 1 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3D reconstruction | Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 107970 / Symmetry type: POINT | ||||||||||||||||||||||||
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