Crystal Structure of Z-DNA with 6-fold Twinning_Z3B
Four highly pseudosymmetric and/or twinned structures of d(CGCGCG)2 extend the repertoire of crystal structures of Z-DNA.
100 mM KCl, 10 mM MgCl2, Tris-HCl pH 8.5, 30% PEG 400
HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS