2I9Y:
reference: Structures of two Arabidopsis thaliana major latex proteins represent novel helix-grip folds., Lytle BL, Song J, de la Cruz NB, Peterson FC, Johnson KA, Bingman CA, Phillips GN Jr, Volkman BF, Proteins. 2009 Jul;76(1):237-43. PMID: 19326460

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