4QVJ:
reference: Structural analysis of a feline norovirus protruding domain., Singh BK, Glatt S, Ferrer JL, Koromyslova AD, Leuthold MM, Dunder J, Hansman GS, Virology. 2015 Jan 1;474:181-5. doi: 10.1016/j.virol.2014.10.028. Epub 2014 Nov, 19. PMID: 25463616

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