Experimental Data Snapshot

  • Resolution: 2.60 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.185 

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Structural and functional studies of SAV0551 fromStaphylococcus aureusas a chaperone and glyoxalase III.

Kim, H.J.Lee, K.Y.Kwon, A.R.Lee, B.J.

(2017) Biosci Rep 37

  • DOI: https://doi.org/10.1042/BSR20171106
  • Primary Citation of Related Structures:  
    5XR2, 5XR3

  • PubMed Abstract: 

    The DJ-1/ThiJ/ Pf pI superfamily of proteins is highly conserved across all biological kingdoms showing divergent multifunctions, such as chaperone, catalase, protease, and kinase. The common theme of these functions is responding to and managing various cellular stresses. DJ-1/ThiJ/ Pf pI superfamily members are classified into three subfamilies according to their quaternary structure (DJ-1-, YhbO-, and Hsp-types). The Hsp-type subfamily includes Hsp31, a chaperone and glyoxalase III. SAV0551, an Hsp-type subfamily member from Staphylococcus aureus , is a hypothetical protein that is predicted as Hsp31. Thus, to reveal the function and reaction mechanism of SAV0551, the crystal structure of SAV0551 was determined. The overall folds in SAV0551 are similar to other members of the Hsp-type subfamily. We have shown that SAV0551 functions as a chaperone and that the surface structure is crucial for holding unfolded substrates. As many DJ-1/ThiJ/ Pf pI superfamily proteins have been characterized as glyoxalase III, our study also demonstrates SAV0551 as a glyoxalase III that is independent of any cofactors. The reaction mechanism was evaluated via a glyoxylate-bound structure that mimics the hemithioacetal reaction intermediate. We have confirmed that the components required for reaction are present in the structure, including a catalytic triad for a catalytic action, His 78 as a base, and a water molecule for hydrolysis. Our functional studies based on the crystal structures of native and glyoxylate-bound SAV0551 will provide a better understanding of the reaction mechanism of a chaperone and glyoxalase III.

  • Organizational Affiliation

    Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Gwanak-gu, Seoul 151-742, Korea.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protein/nucleic acid deglycase HchA
A, B, C, D, E
A, B, C, D, E, F, G, H
300Staphylococcus aureus subsp. aureus Mu50Mutation(s): 0 
Gene Names: hchASAV0551
EC: 3.1.2 (PDB Primary Data), (PDB Primary Data)
Find proteins for P64312 (Staphylococcus aureus (strain Mu50 / ATCC 700699))
Explore P64312 
Go to UniProtKB:  P64312
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP64312
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.60 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.185 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 96.284α = 90
b = 129.454β = 90
c = 187.853γ = 90
Software Package:
Software NamePurpose
HKL-2000data processing
HKL-2000data scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-11-01
    Type: Initial release
  • Version 1.1: 2017-11-29
    Changes: Database references
  • Version 1.2: 2018-04-18
    Changes: Data collection, Database references
  • Version 2.0: 2023-11-15
    Changes: Atomic model, Data collection, Database references, Derived calculations
  • Version 2.1: 2023-11-22
    Changes: Refinement description