3MWP:
reference: Cap binding and immune evasion revealed by Lassa nucleoprotein structure., Qi X, Lan S, Wang W, Schelde LM, Dong H, Wallat GD, Ly H, Liang Y, Dong C, Nature. 2010 Nov 17. PMID: 21085117

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