5TPQ:
reference: Differential Catalytic Promiscuity of the Alkaline Phosphatase Superfamily Bimetallo Core Reveals Mechanistic Features Underlying Enzyme Evolution., Sunden F, AlSadhan I, Lyubimov A, Doukov T, Swan J, Herschlag D, J Biol Chem. 2017 Oct 25. pii: jbc.M117.788240. doi: 10.1074/jbc.M117.788240. PMID: 29070681

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