3TSS

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

3TSS の概要

• エントリーDOI: 10.2210/pdb3tss/pdb
• 分子名称: TOXIC SHOCK SYNDROME TOXIN-1 (2 entities in total)
• 機能のキーワード: toxin, superantigen
• 由来する生物種: Staphylococcus aureus
• 細胞内の位置: Secreted: P06886
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 22126.87

構造登録者

Prasad, G.S.,Radhakrishnan, R.,Mitchell, D.T.,Earhart, C.A.,Dinges, M.M.,Cook, W.J.,Schlivert, P.M.,Ohlendorf, D.H. (登録日: 1996-12-11, 公開日: 1997-12-24, 最終更新日: 2024-05-22)

主引用文献

Prasad, G.S.,Radhakrishnan, R.,Mitchell, D.T.,Earhart, C.A.,Dinges, M.M.,Cook, W.J.,Schlievert, P.M.,Ohlendorf, D.H.
Refined structures of three crystal forms of toxic shock syndrome toxin-1 and of a tetramutant with reduced activity.
Protein Sci., 6:1220-1227, 1997

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).

PubMed: 9194182

実験手法

X-RAY DIFFRACTION (1.9 Å)