2QIL

TOXIC SHOCK SYNDROME TOXIN-1 AT 2.07 A RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.07 Å
  • R-Value Work: 0.204 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The refined crystal structure of toxic shock syndrome toxin-1 at 2.07 A resolution.

Papageorgiou, A.C.Brehm, R.D.Leonidas, D.D.Tranter, H.S.Acharya, K.R.

(1996) J.Mol.Biol. 260: 553-569


  • PubMed Abstract: 
  • The pyrogenic toxin toxic shock syndrome toxin-1 from Staphylococcus aureus is a causative agent of the toxic shock syndrome disease. It belongs to a family of proteins known as superantigens that cross-link major histocompatibility class II molecule ...

    The pyrogenic toxin toxic shock syndrome toxin-1 from Staphylococcus aureus is a causative agent of the toxic shock syndrome disease. It belongs to a family of proteins known as superantigens that cross-link major histocompatibility class II molecules and T-cell receptors leading to the activation of a substantial number of T cells. The crystal structure of this protein has been refined to 2.07 A with an Rcryst value of 20.4% for 51,240 reflections. The final model contains three molecules in the asymmetric unit with good stereochemistry and a root-mean-square deviation of 0.009 A and 1.63 from ideality for bond lengths and bond angles, respectively. The overall fold is considerably similar to that of other known microbial superantigens (staphylococcal enterotoxins). However, a detailed structural analysis shows that toxic shock syndrome toxin-1 lacks several structural features that affect its specificity for V beta elements of the T-cell receptor and also its recognition by major histocompatibility class II molecules.


    Related Citations: 
    • Crystal Structure of the Superantigen Enterotoxin C2 from Staphylococcus Aureus Reveals a Zinc-Binding Site
      Papageorgiou, A.C.,Acharya, K.R.,Shapiro, R.,Passalacqua, E.F.,Brehm, R.D.,Tranter, H.S.
      (1995) Structure 3: 769
    • Molecular Topology is Important for the Function of Staphylococcal Superantigens
      Tranter, H.,Brehm, R.D.,Acharya, K.R.
      (1995) Bacterial Superantigens: Structure, Function and Therapeutic Potential --: 5
    • Structural Basis of Superantigen Action Inferred from Crystal Structure of Toxic-Shock Syndrome Toxin-1
      Acharya, K.R.,Passalacqua, E.F.,Jones, E.Y.,Harlos, K.,Stuart, D.I.,Brehm, R.D.,Tranter, H.S.
      (1994) Nature 367: 94


    Organizational Affiliation

    School of Biology and Biochemistry, University of Bath, Claverton Down, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TOXIC SHOCK SYNDROME TOXIN-1
A, B, C
194Staphylococcus aureusMutation(s): 0 
Gene Names: tst
Find proteins for P06886 (Staphylococcus aureus)
Go to UniProtKB:  P06886
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.07 Å
  • R-Value Work: 0.204 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 109.560α = 90.00
b = 177.600β = 90.00
c = 98.130γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
MOSFLMdata reduction
X-PLORphasing
X-PLORrefinement
AGROVATAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-08-12
    Type: Initial release
  • Version 1.1: 2008-03-25
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance