3WDF

Staphylococcus aureus UDG


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.48 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.146 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Staphylococcus aureus protein SAUGI acts as a uracil-DNA glycosylase inhibitor.

Wang, H.C.Hsu, K.C.Yang, J.M.Wu, M.L.Ko, T.P.Lin, S.R.Wang, A.H.J.

(2013) Nucleic Acids Res. 42: 1354-1364

  • DOI: 10.1093/nar/gkt964
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • DNA mimic proteins are unique factors that control the DNA binding activity of target proteins by directly occupying their DNA binding sites. The extremely divergent amino acid sequences of the DNA mimics make these proteins hard to predict, and alth ...

    DNA mimic proteins are unique factors that control the DNA binding activity of target proteins by directly occupying their DNA binding sites. The extremely divergent amino acid sequences of the DNA mimics make these proteins hard to predict, and although they are likely to be ubiquitous, to date, only a few have been reported and functionally analyzed. Here we used a bioinformatic approach to look for potential DNA mimic proteins among previously reported protein structures. From ∼14 candidates, we selected the Staphylococcus conserved hypothetical protein SSP0047, and used proteomic and structural approaches to show that it is a novel DNA mimic protein. In Staphylococcus aureus, we found that this protein acts as a uracil-DNA glycosylase inhibitor, and therefore named it S. aureus uracil-DNA glycosylase inhibitor (SAUGI). We also determined and analyzed the complex structure of SAUGI and S. aureus uracil-DNA glycosylase (SAUDG). Subsequent BIAcore studies further showed that SAUGI has a high binding affinity to both S. aureus and human UDG. The two uracil-DNA glycosylase inhibitors (UGI and p56) previously known to science were both found in Bacillus phages, and this is the first report of a bacterial DNA mimic that may regulate SAUDG's functional roles in DNA repair and host defense.


    Organizational Affiliation

    Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan, Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan, Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu, 30050, Taiwan, Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, 30050, Taiwan, Center for Bioinformatics Research, National Chiao Tung University, Hsinchu, 30050, Taiwan and Core Facilities for Protein Structural Analysis, Academia Sinica, Taipei 115, Taiwan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Uracil-DNA glycosylase
A, B
226Staphylococcus aureus (strain MRSA252)Mutation(s): 0 
Gene Names: ung
EC: 3.2.2.27
Find proteins for Q6GJ88 (Staphylococcus aureus (strain MRSA252))
Go to UniProtKB:  Q6GJ88
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.48 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.146 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 56.408α = 90.00
b = 79.494β = 112.06
c = 62.627γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
REFMACrefinement
HKL-2000data collection
HKL-2000data scaling
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-02-05
    Type: Initial release