5AJT:
reference: The three-dimensional Structure of "Lonely Guy" from Claviceps purpurea provides insights into the phosphoribohydrolase function of Rossmann fold-containing lysine decarboxylase-like proteins., Dzurova L, Forneris F, Savino S, Galuszka P, Vrabka J, Frebort I, Proteins. 2015 May 25. doi: 10.1002/prot.24835. PMID: 26010010

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