2GIB:
reference: Crystal structure of the severe acute respiratory syndrome (SARS) coronavirus nucleocapsid protein dimerization domain reveals evolutionary linkage between corona- and arteriviridae., Yu IM, Oldham ML, Zhang J, Chen J, J Biol Chem. 2006 Jun 23;281(25):17134-9. Epub 2006 Apr 20. PMID: 16627473

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