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. 2001 Apr 17;98(9):4844–4849. doi: 10.1073/pnas.081560598

Table 3.

Equilibrium binding constants to duplex and quadruplex DNA

Compound K (duplex) K (quadruplex)
1 1.1  × 106 1.3  × 106
2 2  × 105 8.3  × 105
3 4  × 105 1.6  × 107
4 5  × 105 1.6  × 107