3DER:
reference: Discovery of a dipeptide epimerase enzymatic function guided by homology modeling and virtual screening., Kalyanaraman C, Imker HJ, Fedorov AA, Fedorov EV, Glasner ME, Babbitt PC, Almo SC, Gerlt JA, Jacobson MP, Structure. 2008 Nov;16(11):1668-77. PMID: 19000819

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