Structural and functional insights into Survival endonuclease, an important virulence factor of Brucella abortus

Experimental Data Snapshot

  • Resolution: 1.90 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.200 

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This is version 1.3 of the entry. See complete history


Structural and functional insights into the stationary-phase survival protein SurE, an important virulence factor of Brucella abortus

Tarique, K.F.Abdul Rehman, S.A.Devi, S.Tomar, P.Gourinath, S.

(2016) Acta Crystallogr F Struct Biol Commun 72: 386-396

  • DOI: https://doi.org/10.1107/S2053230X16005999
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The stationary-phase survival protein SurE from Brucella abortus (BaSurE) is a metal-dependent phosphatase that is essential for the survival of this bacterium in the stationary phase of its life cycle. Here, BaSurE has been biochemically characterized and its crystal structure has been determined to a resolution of 1.9 Å. BaSurE was found to be a robust enzyme, showing activity over wide ranges of temperature and pH and with various phosphoester substrates. The active biomolecule is a tetramer and each monomer was found to consist of two domains: an N-terminal domain, which forms an approximate α + β fold, and a C-terminal domain that belongs to the α/β class. The active site lies at the junction of these two domains and was identified by the presence of conserved negatively charged residues and a bound Mg(2+) ion. Comparisons of BaSurE with its homologues have revealed both common features and differences in this class of enzymes. The number and arrangement of some of the equivalent secondary structures, which are seen to differ between BaSurE and its homologues, are responsible for a difference in the size of the active-site area and the overall oligomeric state of this enzyme in other organisms. As it is absent in mammals, it has the potential to be a drug target.

  • Organizational Affiliation

    School of Life Sciences, Jawaharlal Nehru University, New Delhi 110 067, India.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
5'-nucleotidase SurEA [auth D],
B [auth A],
D [auth G]
263Brucella abortus S19Mutation(s): 0 
Gene Names: surEBAbS19_I08450
Find proteins for B2S5B9 (Brucella abortus (strain S19))
Explore B2S5B9 
Go to UniProtKB:  B2S5B9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupB2S5B9
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.90 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.200 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.181α = 90
b = 121.068β = 93.58
c = 82.431γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number

Revision History  (Full details and data files)

  • Version 1.0: 2015-05-06
    Type: Initial release
  • Version 1.1: 2016-05-18
    Changes: Database references
  • Version 1.2: 2017-10-04
    Changes: Data collection, Derived calculations
  • Version 1.3: 2023-11-08
    Changes: Data collection, Database references, Derived calculations, Refinement description