3K55

Structure of beta hairpin deletion mutant of beta toxin from Staphylococcus aureus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.35 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.241 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of a mutant beta toxin from Staphylococcus aureus reveals domain swapping and conformational flexibility

Kruse, A.C.Huseby, M.J.Shi, K.Digre, J.Ohlendorf, D.H.Earhart, C.A.

(2011) Acta Crystallogr.,Sect.F 67: 438-441

  • DOI: 10.1107/S1744309111005239

  • PubMed Abstract: 
  • The 3.35 Å resolution crystal structure of a mutant form of the staphylococcal sphingomyelinase β toxin in which a conserved hydrophobic β-hairpin has been deleted is reported. It is shown that this mutation induces domain swapping of a C-terminal β- ...

    The 3.35 Å resolution crystal structure of a mutant form of the staphylococcal sphingomyelinase β toxin in which a conserved hydrophobic β-hairpin has been deleted is reported. It is shown that this mutation induces domain swapping of a C-terminal β-strand, leading to the formation of dimers linked by a conformationally flexible hinge region. Eight dimers are seen in the asymmetric unit, exhibiting a broad spectrum of conformations trapped in place by intermolecular contacts within the crystal lattice. Furthermore, the 16 monomers within each asymmetric unit exhibit a remarkable heterogeneity in thermal factors, which can be accounted for by the varying degrees to which each monomer interacts with other molecules in the crystal. This structure provides a unique example of the challenges associated with crystallographic study of flexible proteins.


    Organizational Affiliation

    Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Beta-hemolysin
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P
306Staphylococcus aureusMutation(s): 0 
Find proteins for A7LAI8 (Staphylococcus aureus)
Go to UniProtKB:  A7LAI8
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
C
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download SDF File 
Download CCD File 
B, D, L
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.35 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.241 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 151.377α = 90.00
b = 134.473β = 116.89
c = 156.990γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-01-26
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Source and taxonomy, Version format compliance