1X9Y

The prostaphopain B structure


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.276 
  • R-Value Work: 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

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
cysteine proteinase
A, B, C, D
367Staphylococcus aureusMutation(s): 0 
Gene Names: sspB
EC: 3.4.22.-
Find proteins for P0C1S6 (Staphylococcus aureus)
Go to UniProtKB:  P0C1S6
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.244 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 84.621α = 90.00
b = 104.918β = 90.00
c = 173.119γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
DENZOdata reduction
CNSrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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