3ZQJ

Mycobacterium tuberculosis UvrA

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.273 
  • R-Value Observed: 0.273 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

The Biological and Structural Characterization of Mycobacterium Tuberculosis Uvra Provides Novel Insights Into its Mechanism of Action

Rossi, F., Khanduja, J.S., Bortoluzzi, A., Houghton, J., Sander, P., Guthlein, C., Davis, E.O., Springer, B., Bottger, E.C., Relini, A., Penco, A., Muniyappa, K., Rizzi, M.

(2011) Nucleic Acids Res 39: 7316

  • DOI: 10.1093/nar/gkr271
  • Primary Citation of Related Structures:  
    3ZQJ

  • PubMed Abstract: 

    • Mycobacterium tuberculosis is an extremely well adapted intracellular human pathogen that is exposed to multiple DNA damaging chemical assaults originating from the host defence mechanisms. As a consequence, this bacterium is thought to possess highly efficient DNA repair machineries, the nucleotide excision repair (NER) system amongst these ...

    Mycobacterium tuberculosis is an extremely well adapted intracellular human pathogen that is exposed to multiple DNA damaging chemical assaults originating from the host defence mechanisms. As a consequence, this bacterium is thought to possess highly efficient DNA repair machineries, the nucleotide excision repair (NER) system amongst these. Although NER is of central importance to DNA repair in M. tuberculosis, our understanding of the processes in this species is limited. The conserved UvrABC endonuclease represents the multi-enzymatic core in bacterial NER, where the UvrA ATPase provides the DNA lesion-sensing function. The herein reported genetic analysis demonstrates that M. tuberculosis UvrA is important for the repair of nitrosative and oxidative DNA damage. Moreover, our biochemical and structural characterization of recombinant M. tuberculosis UvrA contributes new insights into its mechanism of action. In particular, the structural investigation reveals an unprecedented conformation of the UvrB-binding domain that we propose to be of functional relevance. Taken together, our data suggest UvrA as a potential target for the development of novel anti-tubercular agents and provide a biochemical framework for the identification of small-molecule inhibitors interfering with the NER activity in M. tuberculosis.

    Organizational Affiliation: 

    DiSCAFF, University of Piemonte Orientale Amedeo Avogadro, Via Bovio 6, 28100 Novara, Italy.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
UVRABC SYSTEM PROTEIN A
A, B, C, D, E, F
A, B, C, D, E, F
993Mycobacterium tuberculosisMutation(s): 0 
UniProt
Find proteins for P9WQK7 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WQK7 
Go to UniProtKB:  P9WQK7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP9WQK7
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.273 
  • R-Value Observed: 0.273 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 258.227α = 90
b = 258.227β = 90
c = 204.554γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-06-22
    Type: Initial release
  • Version 1.1: 2011-09-14
    Changes: Database references