8PSH:
reference: Structure of a stereoregular phosphorothioate DNA/RNA duplex., Bachelin M, Hessler G, Kurz G, Hacia JG, Dervan PB, Kessler H, Nat Struct Biol 1998 Apr;5(4):271-6. PMID: 9546216

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