5GSW:
reference: Structure of the Enterovirus 71 3C Protease in Complex with NK-1.8k and Indications for the Development of Antienterovirus Protease Inhibitor., Wang Y, Cao L, Zhai Y, Yin Z, Sun Y, Shang L, Antimicrob Agents Chemother. 2017 Jun 27;61(7). pii: e00298-17. doi:, 10.1128/AAC.00298-17. Print 2017 Jul. PMID: 28461310

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