4MVN

Crystal structure of the staphylococcal serine protease SplA in complex with a specific phosphonate inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.165 
  • R-Value Observed: 0.167 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Development and binding characteristics of phosphonate inhibitors of SplA protease from Staphylococcus aureus.

Burchacka, E.Zdzalik, M.Niemczyk, J.S.Pustelny, K.Popowicz, G.Wladyka, B.Dubin, A.Potempa, J.Sienczyk, M.Dubin, G.Oleksyszyn, J.

(2014) Protein Sci 23: 179-189

  • DOI: 10.1002/pro.2403
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Staphylococcus aureus is responsible for a variety of human infections, including life-threatening, systemic conditions. Secreted proteome, including a range of proteases, constitutes the major virulence factor of the bacterium. However, the function ...

    Staphylococcus aureus is responsible for a variety of human infections, including life-threatening, systemic conditions. Secreted proteome, including a range of proteases, constitutes the major virulence factor of the bacterium. However, the functions of individual enzymes, in particular SplA protease, remain poorly characterized. Here, we report development of specific inhibitors of SplA protease. The design, synthesis, and activity of a series of α-aminoalkylphosphonate diaryl esters and their peptidyl derivatives are described. Potent inhibitors of SplA are reported, which may facilitate future investigation of physiological function of the protease. The binding modes of the high-affinity compounds Cbz-Phe(P) -(OC6 H4 -4-SO2 CH3 )2 and Suc-Val-Pro-Phe(P) -(OC6 H5 )2 are revealed by high-resolution crystal structures of complexes with the protease. Surprisingly, the binding mode of both compounds deviates from previously characterized canonical interaction of α-aminoalkylphosphonate peptidyl derivatives and family S1 serine proteases.


    Organizational Affiliation

    Division of Medicinal Chemistry and Microbiology, Faculty of Chemistry, Wroclaw University of Technology, Wroclaw, Poland.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine protease splA
A, B, C, D
200Staphylococcus aureus subsp. aureus NCTC 8325Mutation(s): 0 
Gene Names: splASAOUHSC_01942
EC: 3.4.21
Find proteins for Q2FXC2 (Staphylococcus aureus (strain NCTC 8325))
Go to UniProtKB:  Q2FXC2
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
I1S
Query on I1S

Download CCD File 
A, B, C, D
[(1S)-1-{[(benzyloxy)carbonyl]amino}-2-phenylethyl]phosphonic acid
C16 H18 N O5 P
VSULGWZITIYPLP-HNNXBMFYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.165 
  • R-Value Observed: 0.167 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.131α = 90
b = 81.626β = 90
c = 133.787γ = 90
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-01-22
    Type: Initial release
  • Version 1.1: 2014-03-05
    Changes: Database references