Intercalation of water molecules between nucleic acid bases in the crystal structures of 6-azathymine hemihydrate and 5-amino-2-thiocytosine dihydrochloride dihydrate.

@article{Srikrishnan1985IntercalationOW,
  title={Intercalation of water molecules between nucleic acid bases in the crystal structures of 6-azathymine hemihydrate and 5-amino-2-thiocytosine dihydrochloride dihydrate.},
  author={T. Srikrishnan and R. Parthasarathy},
  journal={Archives of biochemistry and biophysics},
  year={1985},
  volume={239 1},
  pages={
          38-45
        }
}
The crystal structure of 6-azathymine hemihydrate (6AzTH) exhibits a novel intercalation of water molecules interposed half-way between the modified bases 6.3 to 6.7 A apart. The crystal contains four molecules of 6-azathymine (6AzT) and two water molecules as the independent repeating unit. These two water molecules together with the four bases form two separate water sandwiches. In the crystal structure these sandwiches form two sets of local clusters. The anhydrous crystalline form of 6AzT… Expand
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