1D41:
reference: Stabilization of Z-DNA by demethylation of thymine bases: 1.3-A single-crystal structure of d(m5CGUAm5CG)., Zhou GW, Ho PS, Biochemistry 1990 Aug 7;29(31):7229-36. PMID: 2207101

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