4V2X:
reference: Family 46 Carbohydrate-Binding Modules contribute to the enzymatic hydrolysis of xyloglucan and beta-1,3-1,4-glucans through distinct mechanisms., Venditto I, Najmudin S, Luis AS, Ferreira LM, Sakka K, Knox JP, Gilbert HJ, Fontes CM, J Biol Chem. 2015 Feb 23. pii: jbc.M115.637827. PMID: 25713075

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