1IOC:
reference: Elongation in a beta-structure promotes amyloid-like fibril formation of human lysozyme., Goda S, Takano K, Yamagata Y, Maki S, Namba K, Yutani K, J Biochem (Tokyo) 2002 Oct;132(4):655-61. PMID: 12359083

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