4P6Y:
reference: Functional characterization of two M42 aminopeptidases erroneously annotated as cellulases., Dutoit R, Brandt N, Legrain C, Bauvois C, PLoS One. 2012;7(11):e50639. doi: 10.1371/journal.pone.0050639. Epub 2012 Nov 30. PMID: 23226342

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