Table 3

Binding affinities of the test compounds for single-stranded DNA in ETN buffer (0.1 m, pH 7.0, 25°)

CompoundKi (×10−4)3-a
m −1
9-IHA37.9  ± 3.0
Aza-9-IHA12.2  ± 0.9
1-IHA5.9  ± 0.5
Bisantrene101.2  ± 7.9

The values of the exclusion parameter n were always close to 2 bases.

    • 3-a Intrinsic binding constant.