2AS9

Functional and structural characterization of Spl proteases from staphylococcus aureus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Functional and Structural Characterization of Spl Proteases from Staphylococcus aureus

Popowicz, G.M.Dubin, G.Stec-Niemczyk, J.Czarny, A.Dubin, A.Potempa, J.Holak, T.A.

(2006) J Mol Biol 358: 270-279

  • DOI: 10.1016/j.jmb.2006.01.098
  • Primary Citation of Related Structures:  
    2AS9

  • PubMed Abstract: 
  • Staphylococcus aureus is the major cause of nosocomial infections world-wide, with increasing prevalence of community-acquired diseases. The recent dramatic increase in multi-antibiotic resistance, including resistance to the last-resort drug, vancom ...

    Staphylococcus aureus is the major cause of nosocomial infections world-wide, with increasing prevalence of community-acquired diseases. The recent dramatic increase in multi-antibiotic resistance, including resistance to the last-resort drug, vancomycin, together with the lack of an effective vaccine highlight the need for better understanding of S.aureus pathogenicity. Comparative analysis of available bacterial genomes allows for the identification of previously uncharacterized S.aureus genes with potential roles in pathogenicity. A good example is a cluster of six serine protease-like (spl) genes encompassed in one operon, which encode for putative proteases with similarity to staphylococcal glutamylendopeptidase (V8 protease). Here, we describe an efficient expression system for the production of recombinant SplB and SplC proteases in Escherichia coli, together with structural and functional characterization of the purified enzymes. A unique mechanism of cytoplasm protection against activity of misdirected SplB was uncovered. Apparently, the co-translated signal peptide maintains protease latency until it is cleaved by the signal peptidase during protein secretion. Furthermore, the crystal structure of the SplC protease revealed a fold resembling that of the V8 protease and epidermolytic toxins. Arrangement of the active site cleft and substrate-binding pocket of SplC explains the mechanism of enzyme latency and suggests that some Spl proteases possess restricted substrate specificity similar to that of the V8 protease and epidermolytic toxins.


    Organizational Affiliation

    Max-Planck Institute of Biochemistry, Am Klopferspitz 18A, 82-152 Martinsried, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
serine proteaseAB210Staphylococcus aureusMutation(s): 0 
EC: 3.4.21
Find proteins for Q2FXC4 (Staphylococcus aureus (strain NCTC 8325 / PS 47))
Explore Q2FXC4 
Go to UniProtKB:  Q2FXC4
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.213 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 53.12α = 90
b = 81.4β = 90
c = 107.39γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MAR345data collection
XDSdata scaling
SHELXSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-09-06
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description