6GOV

Structure of THE RNA POLYMERASE LAMBDA-BASED ANTITERMINATION COMPLEX


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural Basis for the Action of an All-Purpose Transcription Anti-termination Factor.

Krupp, F.Said, N.Huang, Y.H.Loll, B.Burger, J.Mielke, T.Spahn, C.M.T.Wahl, M.C.

(2019) Mol Cell 74: 143-157.e5

  • DOI: https://doi.org/10.1016/j.molcel.2019.01.016
  • Primary Citation of Related Structures:  
    6GOV

  • PubMed 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-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.


  • Organizational Affiliation

    Medizinische Physik und Biophysik, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.


Macromolecules

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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Transcription termination/antitermination protein NusA497Escherichia coli O157:H7Mutation(s): 0 
Gene Names: nusAZ4530ECs4050
UniProt
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UniProt GroupP0AFF6
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Transcription antitermination protein NusB141Escherichia coli O157:H7Mutation(s): 0 
Gene Names: nusBZ0518ECs0469
UniProt
Find proteins for P0A780 (Escherichia coli (strain K12))
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UniProt GroupP0A780
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S10C [auth E]106Escherichia coli O157:H7Mutation(s): 0 
Gene Names: rpsJnusEZ4692ECs4186
UniProt
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Transcription termination/antitermination protein NusGD [auth G]184Escherichia coli O157:H7Mutation(s): 0 
Gene Names: nusGZ5555ECs4905
UniProt
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Antitermination protein NE [auth N]110Lambdavirus lambdaMutation(s): 0 
Gene Names: Nlambdap49
UniProt
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit alphaF [auth U],
G [auth V]
329Escherichia coli O157:H7Mutation(s): 0 
Gene Names: rpoAZ4665ECs4160
EC: 2.7.7.6
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit omegaH [auth W]91Escherichia coli O157:H7Mutation(s): 0 
Gene Names: rpoZZ5075ECs4524
EC: 2.7.7.6
UniProt
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit betaI [auth X]1,342Escherichia coli O157:H7Mutation(s): 0 
Gene Names: rpoBZ5560ECs4910
EC: 2.7.7.6
UniProt
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit beta'J [auth Y]1,417Escherichia coli O157:H7Mutation(s): 0 
Gene Names: rpoCZ5561ECs4911
EC: 2.7.7.6
UniProt
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Entity ID: 10
MoleculeChains LengthOrganismImage
DNA (I)65synthetic construct
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Entity ID: 11
MoleculeChains LengthOrganismImage
DNA (II)65synthetic construct
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Entity ID: 12
MoleculeChains LengthOrganismImage
RNA (TRANSCRIPTION BUBBLE)M [auth R]66synthetic construct
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research FoundationGermanySFB 740

Revision History  (Full details and data files)

  • Version 1.0: 2019-02-13
    Type: Initial release
  • Version 1.1: 2019-02-27
    Changes: Data collection, Database references
  • Version 1.2: 2019-03-06
    Changes: Data collection, Database references
  • Version 1.3: 2019-04-17
    Changes: Data collection, Database references
  • Version 1.4: 2019-12-18
    Changes: Other