1TCS:
reference: Crystal structure of trichosanthin-NADPH complex at 1.7 A resolution reveals active-site architecture., Xiong JP, Xia ZX, Wang Y, Nat Struct Biol 1994 Oct;1(10):695-700. PMID: 7634073

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