2J98:
reference: Variable Oligomerization Modes in Coronavirus Non-structural Protein 9., Ponnusamy R, Moll R, Weimar T, Mesters JR, Hilgenfeld R, J Mol Biol. 2008 Jul 30. PMID: 18694760

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