3MYW:
reference: The 0.25-nm X-ray structure of the Bowman-Birk-type inhibitor from mung bean in ternary complex with porcine trypsin., Lin G, Bode W, Huber R, Chi C, Engh RA, Eur J Biochem. 1993 Mar 1;212(2):549-55. PMID: 8444191

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