1KQR:
reference: The rhesus rotavirus VP4 sialic acid binding domain has a galectin fold with a novel carbohydrate binding site., Dormitzer PR, Sun ZY, Wagner G, Harrison SC, EMBO J 2002 Mar 1;21(5):885-97. PMID: 11867517

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