4KOP:
reference: A family portrait: structural comparison of the Whirly proteins from Arabidopsis thaliana and Solanum tuberosum., Cappadocia L, Parent JS, Sygusch J, Brisson N, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2013 Nov;69(Pt 11):1207-11., doi: 10.1107/S1744309113028698. Epub 2013 Oct 26. PMID: 24192350

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