2IOF:
reference: Diversification of function in the haloacid dehalogenase enzyme superfamily: The role of the cap domain in hydrolytic phosphoruscarbon bond cleavage., Lahiri SD, Zhang G, Dunaway-Mariano D, Allen KN, Bioorg Chem. 2006 Dec;34(6):394-409. Epub 2006 Oct 27. PMID: 17070898

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