3HE3:
reference: Structural basis of substrate binding to UDP-galactopyranose mutase: crystal structures in the reduced and oxidized state complexed with UDP-galactopyranose and UDP., Partha SK, van Straaten KE, Sanders DA, J Mol Biol. 2009 Dec 18;394(5):864-77. Epub 2009 Oct 21. PMID: 19836401

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