1Z7G: Free Human Hgprt
reference: The crystal structure of free human hypoxanthine-guanine phosphoribosyltransferase reveals extensive conformational plasticity throughout the catalytic cycle., Keough DT, Brereton IM, de Jersey J, Guddat LW, J Mol Biol 2005 Aug 5;351(1):170-81. PMID: 15990111

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