Thermal melting data and the binding constants from melting data at saturating concentrations of polyamines with CP DNA, EC DNA and ML DNA^a.

a<p>Melting stabilization of DNA (Δ<i>T</i>_m) in the presence of saturating amounts of polyamines are average of optical melting and DSC data.</p>b<p><i>K_T</i>_m is the binding constant at the melting temperature.</p>c<p><i>K</i>_obs is the polyamine binding constant at 293.15 K determined using equations described in the text.