3E2N:
reference: Engineering ascorbate peroxidase activity into cytochrome c peroxidase., Meharenna YT, Oertel P, Bhaskar B, Poulos TL, Biochemistry. 2008 Sep 30;47(39):10324-32. Epub 2008 Sep 5. PMID: 18771292

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