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Yorodumi- PDB-6gov: Structure of THE RNA POLYMERASE LAMBDA-BASED ANTITERMINATION COMPLEX -
+Open data
-Basic information
Entry | Database: PDB / ID: 6gov | ||||||
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Title | Structure of THE RNA POLYMERASE LAMBDA-BASED ANTITERMINATION COMPLEX | ||||||
Components |
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Keywords | TRANSCRIPTION / TRANSCRIPTION/DNA/RNA / DNA-DEPENDENT RNA POLYMERASE / BACTERIAL TRANSCRIPTION / TERNARY ELONGATION COMPLEX / ANTITERMINATION / TRANSCRIPTION-DNA-RNA COMPLEX | ||||||
Function / homology | Function and homology information RNA polymerase binding / transcription elongation-coupled chromatin remodeling / bacterial-type RNA polymerase core enzyme binding / transcription antitermination factor activity, RNA binding / DNA-directed RNA polymerase complex / regulation of DNA-templated transcription elongation / transcription antitermination / DNA-templated transcription termination / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity ...RNA polymerase binding / transcription elongation-coupled chromatin remodeling / bacterial-type RNA polymerase core enzyme binding / transcription antitermination factor activity, RNA binding / DNA-directed RNA polymerase complex / regulation of DNA-templated transcription elongation / transcription antitermination / DNA-templated transcription termination / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / RNA stem-loop binding / tRNA binding / single-stranded RNA binding / protein dimerization activity / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / DNA-binding transcription factor activity / nucleotide binding / DNA-templated transcription / regulation of transcription by RNA polymerase II / magnesium ion binding / DNA binding / RNA binding / zinc ion binding / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | Escherichia coli O157:H7 (bacteria) Escherichia phage lambda (virus) synthetic construct (others) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å | ||||||
Authors | Loll, B. / Krupp, F. / Said, N. / Huang, Y. / Buerger, J. / Mielke, T. / Spahn, C.M.T. / Wahl, M.C. | ||||||
Funding support | Germany, 1items
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Citation | Journal: Mol Cell / Year: 2019 Title: Structural Basis for the Action of an All-Purpose Transcription Anti-termination Factor. Authors: Ferdinand Krupp / Nelly Said / Yong-Heng Huang / Bernhard Loll / Jörg Bürger / Thorsten Mielke / Christian M T Spahn / Markus C Wahl / Abstract: Bacteriophage λN protein, a model anti-termination factor, binds nascent RNA and host Nus factors, rendering RNA polymerase resistant to all pause and termination signals. A 3.7-Å-resolution cryo- ...Bacteriophage λN protein, a model anti-termination factor, binds nascent RNA and host Nus factors, rendering RNA polymerase resistant to all pause and termination signals. A 3.7-Å-resolution cryo-electron microscopy structure and structure-informed functional analyses reveal a multi-pronged strategy by which the intrinsically unstructured λN directly modifies RNA polymerase interactions with the nucleic acids and subverts essential functions of NusA, NusE, and NusG to reprogram the transcriptional apparatus. λN repositions NusA and remodels the β subunit flap tip, which likely precludes folding of pause or termination RNA hairpins in the exit tunnel and disrupts termination-supporting interactions of the α subunit C-terminal domains. λN invades and traverses the RNA polymerase hybrid cavity, likely stabilizing the hybrid and impeding pause- or termination-related conformational changes of polymerase. λN also lines upstream DNA, seemingly reinforcing anti-backtracking and anti-swiveling by NusG. Moreover, λN-repositioned NusA and NusE sequester the NusG C-terminal domain, counteracting ρ-dependent termination. Other anti-terminators likely utilize similar mechanisms to enable processive transcription. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6gov.cif.gz | 797.7 KB | Display | PDBx/mmCIF format |
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PDB format | pdb6gov.ent.gz | 632.4 KB | Display | PDB format |
PDBx/mmJSON format | 6gov.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6gov_validation.pdf.gz | 1.1 MB | Display | wwPDB validaton report |
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Full document | 6gov_full_validation.pdf.gz | 1.2 MB | Display | |
Data in XML | 6gov_validation.xml.gz | 108 KB | Display | |
Data in CIF | 6gov_validation.cif.gz | 172.5 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/go/6gov ftp://data.pdbj.org/pub/pdb/validation_reports/go/6gov | HTTPS FTP |
-Related structure data
Related structure data | 0043MC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Transcription termination/antitermination protein ... , 2 types, 2 molecules AG
#1: Protein | Mass: 55030.789 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli O157:H7 (bacteria) / Gene: nusA, Z4530, ECs4050 / Production host: Escherichia coli (E. coli) / References: UniProt: P0AFF8 |
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#4: Protein | Mass: 20831.838 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli O157:H7 (bacteria) / Gene: nusG, Z5555, ECs4905 / Production host: Escherichia coli (E. coli) / References: UniProt: P0AFG1 |
-Protein , 3 types, 3 molecules BEN
#2: Protein | Mass: 15838.161 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli O157:H7 (bacteria) / Gene: nusB, Z0518, ECs0469 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A782 |
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#3: Protein | Mass: 12012.884 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli O157:H7 (bacteria) / Gene: rpsJ, nusE, Z4692, ECs4186 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A7R7 |
#5: Protein | Mass: 12580.600 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia phage lambda (virus) / Gene: N, lambdap49 / Production host: Escherichia coli (E. coli) / References: UniProt: P03045 |
-DNA-directed RNA polymerase subunit ... , 4 types, 5 molecules UVWXY
#6: Protein | Mass: 36558.680 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli O157:H7 (bacteria) / Gene: rpoA, Z4665, ECs4160 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A7Z6, DNA-directed RNA polymerase #7: Protein | | Mass: 10249.547 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli O157:H7 (bacteria) / Gene: rpoZ, Z5075, ECs4524 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A802, DNA-directed RNA polymerase #8: Protein | | Mass: 150820.875 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli O157:H7 (bacteria) / Gene: rpoB, Z5560, ECs4910 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A8V4, DNA-directed RNA polymerase #9: Protein | | Mass: 156716.141 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli O157:H7 (bacteria) / Gene: rpoC, Z5561, ECs4911 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A8T8, DNA-directed RNA polymerase |
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-DNA chain , 2 types, 2 molecules KL
#10: DNA chain | Mass: 20022.869 Da / Num. of mol.: 1 / Source method: obtained synthetically / Details: designed sequence / Source: (synth.) synthetic construct (others) |
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#11: DNA chain | Mass: 19919.775 Da / Num. of mol.: 1 / Source method: obtained synthetically / Details: designed sequence / Source: (synth.) synthetic construct (others) |
-RNA chain , 1 types, 1 molecules R
#12: RNA chain | Mass: 21238.717 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: designed sequence / Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli) |
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-Non-polymers , 2 types, 3 molecules
#13: Chemical | ChemComp-MG / |
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#14: Chemical |
-Details
Has protein modification | 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 |
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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 | ||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Embedding applied: YES / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
Specimen support | Grid type: Quantifoil R3/3 | ||||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 4 K |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 105000 X / Cs: 2.7 mm / C2 aperture diameter: 50 µm |
Specimen holder | Cryogen: NITROGEN |
Image recording | Electron dose: 69 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||
Particle selection | Num. of particles selected: 802858 | ||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||
3D reconstruction | Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 708030 / Algorithm: FOURIER SPACE / Symmetry type: POINT |