ISDA

Deposition Date 1996-12-11

Release Date 1997-12-24

Last Version Date 2024-05-22

Entry Detail

PDB ID:

3TSS

Keywords:

TOXIN

Title:

TOXIC SHOCK SYNDROME TOXIN-1 TETRAMUTANT, P2(1) CRYSTAL FORM

Biological Source:

Source Organism:

Staphylococcus aureus (Taxon ID: 1280)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.90 Å

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:TOXIC SHOCK SYNDROME TOXIN-1
Gene (Uniprot):tst
Mutations:T69I, Y80W, E132K, I140T
Chain IDs:A
Chain Length:194
Number of Molecules:1
Biological Source:Staphylococcus aureus

UniProt ID:P06886 Pfam ID:PF02876

Primary Citation

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, Prasad, G.S, Earhart, C.A, Murray, D.L, Novick, R.P, Schlievert, P.M, Ohlendorf, D.H.Show

Protein Sci. 6 1220 1227 (1997)

PMID: 9194182

Abstact

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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Primary Citation of related structures