1NG5

2.0 A crystal structure of Staphylococcus aureus Sortase B


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.237 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structures of sortase B from Staphylococcus aureus and Bacillus anthracis reveal catalytic amino acid triad in the active site.

Zhang, R.Wu, R.Joachimiak, G.Mazmanian, S.K.Missiakas, D.M.Gornicki, P.Schneewind, O.Joachimiak, A.

(2004) Structure 12: 1147-1156

  • DOI: 10.1016/j.str.2004.06.001
  • Primary Citation of Related Structures:  1RZ2

  • PubMed Abstract: 
  • Surface proteins attached by sortases to the cell wall envelope of bacterial pathogens play important roles during infection. Sorting and attachment of these proteins is directed by C-terminal signals. Sortase B of S. aureus recognizes a motif NPQTN, ...

    Surface proteins attached by sortases to the cell wall envelope of bacterial pathogens play important roles during infection. Sorting and attachment of these proteins is directed by C-terminal signals. Sortase B of S. aureus recognizes a motif NPQTN, cleaves the polypeptide after the Thr residue, and attaches the protein to pentaglycine cross-bridges. Sortase B of B. anthracis is thought to recognize the NPKTG motif, and attaches surface proteins to m-diaminopimelic acid cross-bridges. We have determined crystal structure of sortase B from B. anthracis and S. aureus at 1.6 and 2.0 A resolutions, respectively. These structures show a beta-barrel fold with alpha-helical elements on its outside, a structure thus far exclusive to the sortase family. A putative active site located on the edge of the beta-barrel is comprised of a Cys-His-Asp catalytic triad and presumably faces the bacterial cell surface. A putative binding site for the sorting signal is located nearby.


    Organizational Affiliation

    Structural Biology Center and Midwest Center for Structural Genomics, Argonne National Laboratory, 9700 South Cass Avenue, Building 202, Argonne, IL 60439 USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
sortase B
A, B
215Staphylococcus aureus (strain N315)Gene Names: srtB
Find proteins for A0A0H3JPP1 (Staphylococcus aureus (strain N315))
Go to UniProtKB:  A0A0H3JPP1
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.237 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 71.158α = 90.00
b = 104.383β = 90.00
c = 58.158γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
d*TREKdata reduction
CNSphasing
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-09-23
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Source and taxonomy, Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description