7Q0K

RNA polymerase elongation complex in less-swiveled conformation

  • Classification: TRANSCRIPTION
  • Organism(s): Escherichia coli
  • Expression System: Escherichia coli
  • Mutation(s): No 

  • Deposited: 2021-10-15 Released: 2022-03-23 
  • Deposition Author(s): Zhu, C., Guo, X., Weixlbaumer, A.
  • Funding Organization(s): European Research Council (ERC), Laboratories of Excellence (LabEx), French Infrastructure for Integrated Structural Biology (FRISBI)

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Transcription factors modulate RNA polymerase conformational equilibrium.

Zhu, C.Guo, X.Dumas, P.Takacs, M.Abdelkareem, M.Vanden Broeck, A.Saint-Andre, C.Papai, G.Crucifix, C.Ortiz, J.Weixlbaumer, A.

(2022) Nat Commun 13: 1546-1546

  • DOI: https://doi.org/10.1038/s41467-022-29148-0
  • Primary Citation of Related Structures:  
    7PY0, 7PY1, 7PY3, 7PY5, 7PY6, 7PY7, 7PY8, 7PYJ, 7PYK, 7Q0J, 7Q0K

  • PubMed Abstract: 

    RNA polymerase (RNAP) frequently pauses during the transcription of DNA to RNA to regulate gene expression. Transcription factors NusA and NusG modulate pausing, have opposing roles, but can bind RNAP simultaneously. Here we report cryo-EM reconstructions of Escherichia coli RNAP bound to NusG, or NusA, or both. RNAP conformational changes, referred to as swivelling, correlate with transcriptional pausing. NusA facilitates RNAP swivelling to further increase pausing, while NusG counteracts this role. Their structural effects are consistent with biochemical results on two categories of transcriptional pauses. In addition, the structures suggest a cooperative mechanism of NusA and NusG during Rho-mediated transcription termination. Our results provide a structural rationale for the stochastic nature of pausing and termination and how NusA and NusG can modulate it.


  • Organizational Affiliation

    Department of Integrated Structural Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), 67404, Illkirch, France.


Macromolecules

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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit alphaD [auth A],
E [auth B]
329Escherichia coliMutation(s): 0 
Gene Names: rpoApezphssezb3295JW3257
EC: 2.7.7.6
UniProt
Find proteins for P0A7Z4 (Escherichia coli (strain K12))
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Go to UniProtKB:  P0A7Z4
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UniProt GroupP0A7Z4
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit betaF [auth C]1,342Escherichia coliMutation(s): 0 
Gene Names: rpoBZ5560ECs4910
EC: 2.7.7.6
UniProt
Find proteins for P0A8V2 (Escherichia coli (strain K12))
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UniProt GroupP0A8V2
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit beta'G [auth D]1,407Escherichia coliMutation(s): 0 
Gene Names: rpoCZ5561ECs4911
EC: 2.7.7.6
UniProt
Find proteins for P0A8T7 (Escherichia coli (strain K12))
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UniProt GroupP0A8T7
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit omegaH [auth E]91Escherichia coliMutation(s): 0 
Gene Names: rpoZb3649JW3624
EC: 2.7.7.6
UniProt
Find proteins for P0A800 (Escherichia coli (strain K12))
Explore P0A800 
Go to UniProtKB:  P0A800
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UniProt GroupP0A800
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Entity ID: 1
MoleculeChains LengthOrganismImage
ntDNAA [auth N]39Escherichia coli
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Entity ID: 2
MoleculeChains LengthOrganismImage
tDNAB [auth T]39Escherichia coli
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Entity ID: 3
MoleculeChains LengthOrganismImage
RNAC [auth R]14Escherichia coli
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Research Council (ERC)France--
Laboratories of Excellence (LabEx)France--
French Infrastructure for Integrated Structural Biology (FRISBI)France--

Revision History  (Full details and data files)

  • Version 1.0: 2022-03-23
    Type: Initial release
  • Version 1.1: 2022-10-05
    Changes: Database references
  • Version 1.2: 2024-07-17
    Changes: Data collection