2R33:
reference: Bowman-Birk protease inhibitor from the seeds of Vigna unguiculata forms a highly stable dimeric structure., Rao KN, Suresh CG, Biochim Biophys Acta. 2007 Oct;1774(10):1264-73. Epub 2007 Aug 3. PMID: 17869196

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