1OHG:
reference: The refined structure of a protein catenane: the HK97 bacteriophage capsid at 3.44 A resolution., Helgstrand C, Wikoff WR, Duda RL, Hendrix RW, Johnson JE, Liljas L, J Mol Biol. 2003 Dec 12;334(5):885-99. PMID: 14643655

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