5RUB:
reference: Crystallographic refinement and structure of ribulose-1,5-bisphosphate carboxylase from Rhodospirillum rubrum at 1.7 A resolution., Schneider G, Lindqvist Y, Lundqvist T, J Mol Biol 1990 Feb 20;211(4):989-1008. PMID: 2107319

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