2TPR:
reference: X-ray structure of trypanothione reductase from Crithidia fasciculata at 2.4-A resolution., Kuriyan J, Kong XP, Krishna TS, Sweet RM, Murgolo NJ, Field H, Cerami A, Henderson GB, Proc Natl Acad Sci U S A 1991 Oct 1;88(19):8764-8. PMID: 1924336

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