5OFS:
reference: Genetic Algorithm Based Design and Experimental Characterization of a Highly Thermostable Metalloprotein., Bozkurt E, Perez MAS, Hovius R, Browning NJ, Rothlisberger U, J Am Chem Soc. 2018 Mar 26. doi: 10.1021/jacs.7b10660. PMID: 29336153

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