5IP1:
reference: Asymmetric Trimeric Ring Structure of the Nucleocapsid Protein of Tospovirus., Komoda K, Narita M, Yamashita K, Tanaka I, Yao M, J Virol. 2017 Sep 27;91(20). pii: JVI.01002-17. doi: 10.1128/JVI.01002-17. Print , 2017 Oct 15. PMID: 28768868

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