2BOA: Human Procarboxypeptidase A4.
reference: Detailed molecular comparison between the inhibition mode of A/B-type carboxypeptidases in the zymogen state and by the endogenous inhibitor latexin., Garcia-Castellanos R, Bonet-Figueredo R, Pallares I, Ventura S, Aviles FX, Vendrell J, Gomis-Rutha FX, Cell Mol Life Sci. 2005 Sep;62(17):1996-2014. PMID: 16091843

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