5OLL:
reference: The Crystal Structure of Gurmarin, a Sweet Taste-Suppressing Protein: Identification of the Amino Acid Residues Essential for Inhibition., Sigoillot M, Brockhoff A, Neiers F, Poirier N, Belloir C, Legrand P, Charron C, Roblin P, Meyerhof W, Briand L, Chem Senses. 2018 Sep 22;43(8):635-643. doi: 10.1093/chemse/bjy054. PMID: 30137256

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