1WBC:
reference: Structure of a Kunitz-type chymotrypsin from winged bean seeds at 2.95 A resolution., Dattagupta JK, Podder A, Chakrabarti C, Sen U, Dutta SK, Singh M, Acta Crystallogr D Biol Crystallogr. 1996 May 1;52(Pt 3):521-8. PMID: 15299674

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