4ZG5 image
Deposition Date 2015-04-22
Release Date 2015-05-06
Last Version Date 2023-11-08
Entry Detail
PDB ID:
4ZG5
Keywords:
Title:
Structural and functional insights into Survival endonuclease, an important virulence factor of Brucella abortus
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
1.90 Å
R-Value Free:
0.22
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
P 1 21 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:5'-nucleotidase SurE
Gene (Uniprot):surE
Chain IDs:A (auth: D), B (auth: A), C, D (auth: G)
Chain Length:263
Number of Molecules:4
Biological Source:Brucella abortus S19
Ligand Molecules
Primary Citation
Structural and functional insights into the stationary-phase survival protein SurE, an important virulence factor of Brucella abortus
Acta Crystallogr.,Sect.F 72 386 396 (2016)
PMID: 27139831 DOI: 10.1107/S2053230X16005999

Abstact

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.

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Primary Citation of related structures