1YC6:
reference: Crystallographic structure of the T=1 particle of brome mosaic virus., Larson SB, Lucas RW, McPherson A, J Mol Biol. 2005 Feb 25;346(3):815-31. Epub 2005 Jan 12. PMID: 15713465

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