3AZO:
reference: Structural evidence that puromycin hydrolase is a new type of aminopeptidase with a prolyl oligopeptidase family fold., Matoba Y, Nakayama A, Oda K, Noda M, Kumagai T, Nishimura M, Sugiyama M, Proteins. 2011 Oct;79(10):2999-3005. doi: 10.1002/prot.23139. Epub 2011, Aug 26. PMID: 21905123

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