5IQ5:
reference: Deciphering the Nucleotide and RNA Binding Selectivity of the Mayaro Virus Macro Domain., Tsika AC, Melekis E, Tsatsouli SA, Papageorgiou N, Mate MJ, Canard B, Coutard B, Bentrop D, Spyroulias GA, J Mol Biol. 2019 Apr 15. pii: S0022-2836(19)30207-4. doi:, 10.1016/j.jmb.2019.04.013. PMID: 30998933

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