4TSS

TOXIC SHOCK SYNDROME TOXIN-1: TETRAGONAL P4(1)2(1)2 CRYSTAL FORM

• PDB DOI: https://doi.org/10.2210/pdb4TSS/pdb

• Classification: TOXIN
• Organism(s): Staphylococcus aureus
• Mutation(s): No 


• Deposited: 1996-12-11 Released: 1997-12-24 
• Deposition Author(s): Prasad, G.S., Radhakrishnan, R., Mitchell, D.T., Earhart, C.A., Dinges, M.M., Cook, W.J., Schlivert, P.M., Ohlendorf, D.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.75 Å
• R-Value Work: 0.191 
• R-Value Observed: 0.191 

Starting Model: experimental

Literature

Refined structures of three crystal forms of toxic shock syndrome toxin-1 and of a tetramutant with reduced activity.

Prasad, G.S., Radhakrishnan, R., Mitchell, D.T., Earhart, C.A., Dinges, M.M., Cook, W.J., Schlievert, P.M., Ohlendorf, D.H.

(1997) Protein Sci 6: 1220-1227

• PubMed: 9194182 
• DOI: https://doi.org/10.1002/pro.5560060610
• Primary Citation of Related Structures:  
  2TSS, 3TSS, 4TSS, 5TSS


• PubMed Abstract: 
  

  The structure of toxic shock syndrome toxin-1 (TSST-1), the causative agent in toxic shock syndrome, has been determined in three crystal forms. The three structural models have been refined to R-factors of 0.154, 0.150, and 0.198 at resolutions of 2.05 A, 2.90 A, and 2.75 A, respectively. One crystal form of TSST-1 contains a zinc ion bound between two symmetry-related molecules. Although not required for biological activity, zinc dramatically potentiates the mitogenicity of TSST-1 at very low concentrations. In addition, the structure of the tetramutant TSST-1H [T69I, Y80W, E132K, I140T], which is nonmitogenic and does not amplify endotoxin shock, has been determined and refined in a fourth crystal form (R-factor = 0.173 to 1.9 A resolution).

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Organizational Affiliation: 

Department of Biochemistry, Medical School, University of Minnesota, Minneapolis 55455, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 22.17 kDa 
• Atom Count: 1,560 
• Modelled Residue Count: 194 
• Deposited Residue Count: 194 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TOXIC SHOCK SYNDROME TOXIN-1	A	194	Staphylococcus aureus	Mutation(s): 0
UniProt
Find proteins for P06886 (Staphylococcus aureus) Explore P06886  Go to UniProtKB:  P06886

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.75 Å
• R-Value Work: 0.191 
• R-Value Observed: 0.191 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 47.3	α = 90
b = 47.3	β = 90
c = 205.8	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
MSC	data reduction
MSC	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1997-12-24 
Deposition Author(s): Prasad, G.S., Radhakrishnan, R., Mitchell, D.T., Earhart, C.A., Dinges, M.M., Cook, W.J., Schlivert, P.M., Ohlendorf, D.H.

Revision History  

• Version 1.0: 1997-12-24
  Type: Initial release
  
• Version 1.1: 2008-03-25
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-09
  Changes: Database references, Derived calculations, Other, Refinement description
• Version 1.4: 2024-05-22
  Changes: Data collection