| 3IGE: reference: Structure of the Small Outer Capsid Protein, Soc: A Clamp for Stabilizing Capsids of T4-like Phages., Qin L, Fokine A, O'Donnell E, Rao VB, Rossmann MG, J Mol Biol. 2009 Oct 14. PMID: 19835886 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).