1T7C:
reference: Crystal structures of five bovine chymotrypsin complexes with P1 BPTI variants., Czapinska H, Helland R, Smalas AO, Otlewski J, J Mol Biol 2004 Dec 3;344(4):1005-20. PMID: 15544809

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