6HU4:
reference: Structure of Mutant Hepatitis B Core Protein Capsids with Premature Secretion Phenotype., Bottcher B, Nassal M, J Mol Biol. 2018 Dec 7;430(24):4941-4954. doi: 10.1016/j.jmb.2018.10.018. Epub, 2018 Oct 27. PMID: 30539760

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