5O63:
reference: UbaLAI is a monomeric Type IIE restriction enzyme., Sasnauskas G, Tamulaitiene G, Tamulaitis G, Calyseva J, Laime M, Rimseliene R, Lubys A, Siksnys V, Nucleic Acids Res. 2017 Sep 19;45(16):9583-9594. doi: 10.1093/nar/gkx634. PMID: 28934493

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