3MKO:
reference: X-ray structure of the arenavirus glycoprotein GP2 in its postfusion hairpin conformation., Igonet S, Vaney MC, Vonhrein C, Bricogne G, Stura EA, Hengartner H, Eschli B, Rey FA, Proc Natl Acad Sci U S A. 2011 Nov 28. PMID: 22123988

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