Fig. 5.

Crystal-packing details. (A) A continuous base-pair stacking formed between the molecule in the asymmetric unit (in red) and a symmetry-related one (in blue). (B) Intermolecular electrostatic interactions occurring between d-Lys side chains of residues Adl5, Tdl6, and Cdl7 and phosphate groups of residues T3*, G4*, A5*, and T6*. The monomers with asterisks are related to the asymmetric unit by a 3₁ axis followed by a translation along the [1 1 0] direction. Water molecules are shown in dark red. The image was generated by using bobscript (38).