2QIL:
reference: The refined crystal structure of toxic shock syndrome toxin-1 at 2.07 A resolution., Papageorgiou AC, Brehm RD, Leonidas DD, Tranter HS, Acharya KR, J Mol Biol 1996 Jul 26;260(4):553-69. PMID: 8759320

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).