5Y3D:
reference: Insight Into the Interaction Between RNA Polymerase and VPg for Murine Norovirus Replication., Lee JH, Park BS, Han KR, Biering SB, Kim SJ, Choi J, Seok JH, Alam I, Chung MS, Kim HM, Hwang S, Kim KH, Front Microbiol. 2018 Jul 3;9:1466. doi: 10.3389/fmicb.2018.01466. eCollection, 2018. PMID: 30038601

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