5CR4:
reference: Sleeping Beauty transposase structure allows rational design of hyperactive variants for genetic engineering., Voigt F, Wiedemann L, Zuliani C, Querques I, Sebe A, Mates L, Izsvak Z, Ivics Z, Barabas O, Nat Commun. 2016 Mar 30;7:11126. doi: 10.1038/ncomms11126. PMID: 27025571

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