6GN7:
reference: Several structural motifs cooperate in determining the highly effective anti-thrombin activity of NU172 aptamer., Troisi R, Napolitano V, Spiridonova V, Russo Krauss I, Sica F, Nucleic Acids Res. 2018 Oct 24. pii: 5144158. doi: 10.1093/nar/gky990. PMID: 30357392

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