6URA:
reference: Novel bacterial clade reveals origin of form I Rubisco., Banda DM, Pereira JH, Liu AK, Orr DJ, Hammel M, He C, Parry MAJ, Carmo-Silva E, Adams PD, Banfield JF, Shih PM, Nat Plants. 2020 Sep;6(9):1158-1166. doi: 10.1038/s41477-020-00762-4. Epub 2020, Aug 31. PMID: 32868887

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