1STE:
reference: Crystal structure of the superantigen enterotoxin C2 from Staphylococcus aureus reveals a zinc-binding site., Papageorgiou AC, Acharya KR, Shapiro R, Passalacqua EF, Brehm RD, Tranter HS, Structure 1995 Aug 15;3(8):769-79. PMID: 7582894

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