5V4U:
reference: Conformationally Organized Lysine Isosteres in Streptococcus Pyogenes M Protein Mediate Direct High-Affinity Binding to Human Plasminogen., Yuan Y, Zajicek J, Qiu C, Chandrahas V, Lee SW, Ploplis VA, Castellino FJ, J Biol Chem. 2017 Jul 19. pii: jbc.M117.794198. doi: 10.1074/jbc.M117.794198. PMID: 28724633

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