3J2V:
reference: 3.5A cryoEM Structure of Hepatitis B Virus Core Assembled from Full-Length Core Protein., Yu X, Jin L, Jih J, Shih C, Zhou ZH, PLoS One. 2013 Sep 6;8(9):e69729. doi: 10.1371/journal.pone.0069729. PMID: 24039702

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