1MWG:
reference: Solution structure of (rGCGGACGC)2 by two-dimensional NMR and the iterative relaxation matrix approach., Wu M, Turner DH, Biochemistry 1996 Jul 30;35(30):9677-89. PMID: 8703939

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