1L4Q:
reference: Computer modeling of three-dimensional structure of DNA-packaging RNA (pRNA) monomer, dimer, and hexamer of Phi29 DNA packaging motor., Hoeprich S, Guo P, J Biol Chem. 2002 Jun 7;277(23):20794-803. Epub 2002 Mar 8. PMID: 11886855

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