| 2XFD: reference: Circular permutation provides an evolutionary link between two families of calcium-dependent carbohydrate binding modules., Montanier C, Flint JE, Bolam DN, Xie H, Liu Z, Rogowski A, Weiner D, Ratnaparkhe S, Nurizzo D, Roberts SM, Turkenburg JP, Davies GJ, Gilbert HJ, J Biol Chem. 2010 Jul 21. PMID: 20659893 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).