4WUK:
reference: Structure of the apo anti-influenza CH65 Fab., Lee PS, Arnell AJ, Wilson IA, Acta Crystallogr F Struct Biol Commun. 2015 Feb;71(Pt 2):145-8. doi:, 10.1107/S2053230X14027599. Epub 2015 Jan 28. PMID: 25664786

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