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. 2014 Jun 18;70(Pt 7):860–865. doi: 10.1107/S2053230X1401084X

Table 2. Comparison of phosphate hydration in A-DNA octamers (Eisenstein & Shakked, 1995) and in d(CCCCGGTACCGGGG)2 .

Oligomer Resolution (Å) Phosphate hydration
Total atoms No. of water atoms/No. of hydrated O atoms
GGGCGCCC 1.75 28 37/24
GGCCGGCC 2.1 28 35/22
CCCCGGGG 2.5 28 29/18
CCCCGGTACCGGGG 1.65 52 11/10

Only O1P and O2P phosphate O atoms are taken into consideration.