3R2C

Crystal Structure of Antitermination Factors NusB and NusE in complex with BoxA RNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.169 
  • R-Value Observed: 0.171 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural basis for RNA recognition by NusB and NusE in the initiation of transcription antitermination.

Stagno, J.R.Altieri, A.S.Bubunenko, M.Tarasov, S.G.Li, J.Court, D.L.Byrd, R.A.Ji, X.

(2011) Nucleic Acids Res 39: 7803-7815

  • DOI: 10.1093/nar/gkr418
  • Primary Citation of Related Structures:  
    3R2C, 3R2D

  • PubMed Abstract: 
  • Processive transcription antitermination requires the assembly of the complete antitermination complex, which is initiated by the formation of the ternary NusB-NusE-BoxA RNA complex. We have elucidated the crystal structure of this complex, demonstrating that the BoxA RNA is composed of 8 nt that are recognized by the NusB-NusE heterodimer ...

    Processive transcription antitermination requires the assembly of the complete antitermination complex, which is initiated by the formation of the ternary NusB-NusE-BoxA RNA complex. We have elucidated the crystal structure of this complex, demonstrating that the BoxA RNA is composed of 8 nt that are recognized by the NusB-NusE heterodimer. Functional biologic and biophysical data support the structural observations and establish the relative significance of key protein-protein and protein-RNA interactions. Further crystallographic investigation of a NusB-NusE-dsRNA complex reveals a heretofore unobserved dsRNA binding site contiguous with the BoxA binding site. We propose that the observed dsRNA represents BoxB RNA, as both single-stranded BoxA and double-stranded BoxB components are present in the classical lambda antitermination site. Combining these data with known interactions amongst antitermination factors suggests a specific model for the assembly of the complete antitermination complex.


    Organizational Affiliation

    Macromolecular Crystallography Laboratory, National Cancer Institute, Frederick, MD 21702, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
N utilization substance protein BA, B148Aquifex aeolicusMutation(s): 0 
Gene Names: aq_133nusB
Find proteins for O66530 (Aquifex aeolicus (strain VF5))
Explore O66530 
Go to UniProtKB:  O66530
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S10C [auth J], D [auth K]83Aquifex aeolicusMutation(s): 0 
Gene Names: aq_008NUSErpsJ
Find proteins for O66430 (Aquifex aeolicus (strain VF5))
Explore O66430 
Go to UniProtKB:  O66430
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 3
    MoleculeChainsLengthOrganismImage
    5'-R(*GP*GP*CP*UP*CP*CP*UP*UP*GP*GP*CP*A)-3'E [auth R], F [auth S]12Aquifex aeolicus
    Experimental Data & Validation

    Experimental Data

    • Method: X-RAY DIFFRACTION
    • Resolution: 1.90 Å
    • R-Value Free: 0.202 
    • R-Value Work: 0.169 
    • R-Value Observed: 0.171 
    • Space Group: P 1 21 1
    Unit Cell:
    Length ( Å )Angle ( ˚ )
    a = 40.53α = 90
    b = 113.008β = 102.87
    c = 65.763γ = 90
    Software Package:
    Software NamePurpose
    DENZOdata reduction
    SCALEPACKdata scaling
    PHASERphasing
    PHENIXrefinement
    PDB_EXTRACTdata extraction
    SERGUIdata collection
    HKL-2000data reduction
    HKL-2000data scaling

    Structure Validation

    View Full Validation Report



    Entry History 

    Deposition Data

    • Deposited Date: 2011-03-14 
    • Released Date: 2011-06-22 
    • Deposition Author(s): Stagno, J.R., Ji, X.

    Revision History  (Full details and data files)

    • Version 1.0: 2011-06-22
      Type: Initial release
    • Version 1.1: 2011-07-13
      Changes: Version format compliance
    • Version 1.2: 2011-10-05
      Changes: Database references
    • Version 1.3: 2017-07-26
      Changes: Refinement description, Source and taxonomy
    • Version 1.4: 2017-11-08
      Changes: Refinement description