[English] 日本語
Yorodumi- PDB-8e82: Mycobacterium tuberculosis RNAP elongation complex with NusG tran... -
+Open data
-Basic information
Entry | Database: PDB / ID: 8.0E+82 | ||||||
---|---|---|---|---|---|---|---|
Title | Mycobacterium tuberculosis RNAP elongation complex with NusG transcription factor | ||||||
Components |
| ||||||
Keywords | TRANSCRIPTION/DNA/RNA / RNA polymerase / transcription factor / elongation / pausing / transcription-transferase-DNA complex / TRANSCRIPTION-DNA-RNA complex | ||||||
Function / homology | Function and homology information transcription elongation-coupled chromatin remodeling / 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 / protein dimerization activity / DNA-templated transcription ...transcription elongation-coupled chromatin remodeling / 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 / protein dimerization activity / DNA-templated transcription / magnesium ion binding / DNA binding / zinc ion binding / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | Mycobacterium tuberculosis (bacteria) synthetic construct (others) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.03 Å | ||||||
Authors | Delbeau, M. / Darst, S.A. / Campbell, E.A. | ||||||
Funding support | United States, 1items
| ||||||
Citation | Journal: Mol Cell / Year: 2023 Title: Structural and functional basis of the universal transcription factor NusG pro-pausing activity in Mycobacterium tuberculosis. Authors: Madeleine Delbeau / Expery O Omollo / Ruby Froom / Steven Koh / Rachel A Mooney / Mirjana Lilic / Joshua J Brewer / Jeremy Rock / Seth A Darst / Elizabeth A Campbell / Robert Landick / Abstract: Transcriptional pauses mediate regulation of RNA biogenesis. DNA-encoded pause signals trigger pausing by stabilizing RNA polymerase (RNAP) swiveling and inhibiting DNA translocation. The N-terminal ...Transcriptional pauses mediate regulation of RNA biogenesis. DNA-encoded pause signals trigger pausing by stabilizing RNA polymerase (RNAP) swiveling and inhibiting DNA translocation. The N-terminal domain (NGN) of the only universal transcription factor, NusG/Spt5, modulates pausing through contacts to RNAP and DNA. Pro-pausing NusGs enhance pauses, whereas anti-pausing NusGs suppress pauses. Little is known about pausing and NusG in the human pathogen Mycobacterium tuberculosis (Mtb). We report that MtbNusG is pro-pausing. MtbNusG captures paused, swiveled RNAP by contacts to the RNAP protrusion and nontemplate-DNA wedged between the NGN and RNAP gate loop. In contrast, anti-pausing Escherichia coli (Eco) NGN contacts the MtbRNAP gate loop, inhibiting swiveling and pausing. Using CRISPR-mediated genetics, we show that pro-pausing NGN is required for mycobacterial fitness. Our results define an essential function of mycobacterial NusG and the structural basis of pro- versus anti-pausing NusG activity, with broad implications for the function of all NusG orthologs. | ||||||
History |
|
-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
---|
-Downloads & links
-Download
PDBx/mmCIF format | 8e82.cif.gz | 646.2 KB | Display | PDBx/mmCIF format |
---|---|---|---|---|
PDB format | pdb8e82.ent.gz | 503.3 KB | Display | PDB format |
PDBx/mmJSON format | 8e82.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8e82_validation.pdf.gz | 1.4 MB | Display | wwPDB validaton report |
---|---|---|---|---|
Full document | 8e82_full_validation.pdf.gz | 1.4 MB | Display | |
Data in XML | 8e82_validation.xml.gz | 87.4 KB | Display | |
Data in CIF | 8e82_validation.cif.gz | 132.1 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/e8/8e82 ftp://data.pdbj.org/pub/pdb/validation_reports/e8/8e82 | HTTPS FTP |
-Related structure data
Related structure data | 27942MC 8e74C 8e79C 8e8mC 8e95C M: map data used to model this data C: citing same article (ref.) |
---|---|
Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
|
---|---|
1 |
|
-Components
-DNA-directed RNA polymerase subunit ... , 4 types, 5 molecules ABCDE
#1: Protein | Mass: 37745.328 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mycobacterium tuberculosis (bacteria) / Gene: rpoA / Production host: Escherichia coli (E. coli) / References: UniProt: A5U8D3, DNA-directed RNA polymerase #2: Protein | | Mass: 129372.031 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mycobacterium tuberculosis (bacteria) / Gene: rpoB, MRA_0676 / Production host: Escherichia coli (E. coli) / References: UniProt: A5U052, DNA-directed RNA polymerase #3: Protein | | Mass: 147097.094 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mycobacterium tuberculosis (bacteria) Gene: rpoC, E5M52_05480, ERS007665_00591, ERS013471_00574, ERS023446_00410, ERS075361_00813, ERS094182_01340, F6W99_03342 Production host: Escherichia coli (E. coli) References: UniProt: A0A045J9E2, DNA-directed RNA polymerase #4: Protein | | Mass: 11819.075 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mycobacterium tuberculosis (bacteria) Gene: rpoZ, ERS007703_04032, ERS007720_04749, ERS094182_01030 Production host: Escherichia coli (E. coli) References: UniProt: A0A0T9N9K3, DNA-directed RNA polymerase |
---|
-DNA chain , 2 types, 2 molecules PQ
#6: DNA chain | Mass: 16521.557 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
---|---|
#7: DNA chain | Mass: 16589.572 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
-Protein / RNA chain , 2 types, 2 molecules ZR
#5: Protein | Mass: 25439.439 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mycobacterium tuberculosis (bacteria) / Gene: nusG / Production host: Escherichia coli (E. coli) / References: UniProt: A0A045HU92 |
---|---|
#8: RNA chain | Mass: 6509.968 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
-Non-polymers , 2 types, 3 molecules
#9: Chemical | #10: Chemical | ChemComp-MG / | |
---|
-Details
Has ligand of interest | Y |
---|---|
Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Mycobacterium tuberculosis RNAP elongation complex with NusG transcription factor Type: COMPLEX / Entity ID: #1-#8 / Source: MULTIPLE SOURCES | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Source (natural) |
| ||||||||||||
Source (recombinant) | Organism: Escherichia coli (E. coli) | ||||||||||||
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 |
---|---|
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 defocus max: 2500 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 64.78 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
Software | Name: PHENIX / Version: 1.20.1_4487: / Classification: refinement | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.03 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 132324 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
|