6IUK:
reference: Dynamic rotation of the protruding domain enhances the infectivity of norovirus., Song C, Takai-Todaka R, Miki M, Haga K, Fujimoto A, Ishiyama R, Oikawa K, Yokoyama M, Miyazaki N, Iwasaki K, Murakami K, Katayama K, Murata K, PLoS Pathog. 2020 Jul 2;16(7):e1008619. doi: 10.1371/journal.ppat.1008619., eCollection 2020 Jul. PMID: 32614892

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