1X9Y

The prostaphopain B structure


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.244 
  • R-Value Observed: 0.244 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Prostaphopain B structure: a comparison of proregion-mediated and staphostatin-mediated protease inhibition.

Filipek, R.Szczepanowski, R.Sabat, A.Potempa, J.Bochtler, M.

(2004) Biochemistry 43: 14306-14315

  • DOI: 10.1021/bi048661m
  • Primary Citation of Related Structures:  
    1X9Y

  • PubMed Abstract: 
  • Prostaphopain B is the precursor of staphopain B, a papain-type secreted cysteine protease from the pathogen Staphylococcus aureus. Here, we describe the 2.5 A crystal structure of the proenzyme. Its 21 kDa proregion is organized around a central hal ...

    Prostaphopain B is the precursor of staphopain B, a papain-type secreted cysteine protease from the pathogen Staphylococcus aureus. Here, we describe the 2.5 A crystal structure of the proenzyme. Its 21 kDa proregion is organized around a central half-barrel or barrel-sandwich hybrid and occludes primed, but not nonprimed, sites in the active site cleft of the protease. The structure of the mature part of the protease is similar to previously reported staphopain structures, and no distortion of the catalytic residues is apparent at 2.5 A resolution. A comparison of prostaphopain B with the staphopain B-staphostatin B complex shows that the proregion and the inhibitor interact with largely nonoverlapping parts of the protease surface. In a modeled complex of prostaphopain B with staphostatin B, clashes occur both inside and outside the active site cleft, but involve mostly poorly ordered regions of the protein that may be mobile.


    Related Citations: 
    • The Staphostatin-staphopain complex: a forward binding inhibitor in complex with its target cysteine protease.
      Filipek, R., Rzychon, M., Oleksy, A., Gruca, M., Dubin, A., Potempa, J., Bochtler, M.
      (2003) J Biol Chem 278: 40959

    Organizational Affiliation

    International Institute of Molecular and Cell Biology, ul. Trojdena 4, 02-109 Warsaw, Poland.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
cysteine proteinaseABCD367Staphylococcus aureusMutation(s): 0 
Gene Names: sspB
EC: 3.4.22
Find proteins for P0C1S6 (Staphylococcus aureus)
Explore P0C1S6 
Go to UniProtKB:  P0C1S6
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.244 
  • R-Value Observed: 0.244 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 84.621α = 90
b = 104.918β = 90
c = 173.119γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-11-23
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance