2H7W:
reference: Crystal structure of chagasin, the endogenous cysteine-protease inhibitor from Trypanosoma cruzi., Figueiredo da Silva AA, Carvalho Vieira LD, Krieger MA, Goldenberg S, Tonin Zanchin NI, Guimaraes BG, J Struct Biol. 2006 Aug 17;. PMID: 17011790

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