1EYV

THE CRYSTAL STRUCTURE OF NUSB FROM MYCOBACTERIUM TUBERCULOSIS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.190 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

The crystal structure of NusB from Mycobacterium tuberculosis.

Gopal, B.Haire, L.F.Cox, R.A.Colston, M.J.Major, S.Brannigan, J.A.Smerdon, S.J.Dodson, G.

(2000) Nat Struct Biol 7: 475-478

  • DOI: 10.1038/75876
  • Primary Citation of Related Structures:  
    1EYV

  • PubMed Abstract: 
  • Both prokaryotes and eukaryotes regulate transcription through mechanisms that suppress termination signals. An antitermination mechanism was first characterized in bacteriophage lambda. Bacteria have analogous machinery that regulates ribosomal RNA transcription and employs host factors, called the N-utilizing (where N stands for the phage lambda N protein) substances (Nus), NusA, NusB, NusE and NusG ...

    Both prokaryotes and eukaryotes regulate transcription through mechanisms that suppress termination signals. An antitermination mechanism was first characterized in bacteriophage lambda. Bacteria have analogous machinery that regulates ribosomal RNA transcription and employs host factors, called the N-utilizing (where N stands for the phage lambda N protein) substances (Nus), NusA, NusB, NusE and NusG. Here we report the crystal structure of NusB from Mycobacterium tuberculosis, the bacterium that causes tuberculosis in humans. This molecule shares a similar tertiary structure with the related Escherichia coli protein but adopts a different quaternary organization. We show that, unlike the E. coli homolog, M. tuberculosis NusB is dimeric both in solution and in the crystal. These data help provide a framework for understanding the structural and biological function of NusB in the prokaryotic transcriptional antitermination complex.


    Related Citations: 
    • Crystallization and preliminary X-ray diffraction studies on the N-utilizing substance-B (NusB) from Mycobacterium tuberculosis.
      Gopal, B., Cox, R.A., Colston, M.J., Dodson, G.G., Smerdon, S.J., Haire, L.F.
      (2000) Acta Crystallogr D Biol Crystallogr 56: 64

    Organizational Affiliation

    National Institute for Medical Research, Mill Hill, London, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
N-UTILIZING SUBSTANCE PROTEIN B HOMOLOGA, B156Mycobacterium tuberculosisMutation(s): 0 
UniProt
Find proteins for P9WIV1 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WIV1 
Go to UniProtKB:  P9WIV1
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download Ideal Coordinates CCD File 
C [auth A], D [auth B]PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.190 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.33α = 90
b = 63.54β = 90
c = 90.03γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
ARPmodel building
REFMACrefinement

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-05-18
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-01-31
    Changes: Experimental preparation