1BI6:
reference: Solution structure of bromelain inhibitor IV from pineapple stem: structural similarity with Bowman-Birk trypsin/chymotrypsin inhibitor from soybean., Hatano K, Kojima M, Tanokura M, Takahashi K, Biochemistry 1996 Apr 30;35(17):5379-84. PMID: 8611527

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