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. 2006 Dec 15;92(6):2007–2015. doi: 10.1529/biophysj.106.097246

TABLE 1.

ITC-derived thermodynamic parameters for the 27-mer quadruplex construct binding TMPyP4 in variable salt conditions at 25°C (298 K)

[KCl] (mM) K1 (M−1) × 10−6 ΔG1 (kcal/mol) K2 (M−1) × 10−5 ΔG2 (kcal/mol)
20 43 (±3) −10.4 18 (±0.6) −8.5
50 25 (±2) −10.1 7.0 (±0.2) −8.0
100 5.4 (±.5) −9.2 2.0 (±0.1) −7.3
200 11 (±1) −9.6 2.3 (±0.1) −7.3

Parameters are for the two-independent-sites binding model. The uncertainties listed for ΔHi were determined by Monte Carlo analysis.