3CKV:
reference: Crystal structure of a UDP-glucose-specific glycosyltransferase from a Mycobacterium species., Fulton Z, McAlister A, Wilce MC, Brammananth R, Zaker-Tabrizi L, Perugini MA, Bottomley SP, Coppel RL, Crellin PK, Rossjohn J, Beddoe T, J Biol Chem. 2008 Oct 10;283(41):27881-90. Epub 2008 Jul 30. PMID: 18667419

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