TABLE 2

Thermal stabilization of G-rich sequences of human and canine KIT promoter induced by 1 µM of candidate ligands (∆Tm °C) as well as of ligand concentrations (µM) causing a 50% displacement of TO (EC50)

Compoundh_kit1d_kit1h_kit2d_kit2_A16dsDNA
AQ1
 ∆Tm (°C)13.118.715.3ND4.6
 EC50 (µM)0.32 ± 0.050.64 ± 0.040.35 ± 0.050.14 ± 0.013.66 ± 0.08
AN6
 ∆Tm (°C)5.21.48.03.90.8
 EC50 (µM)4.11 ± 0.705.71 ± 0.463.63 ± 1.005.11 ± 0.2911.42 ± 0.28
  • d_kit1, canine kit1 G4 forming sequence; d_kit2_A16, canine kit2 G4 forming sequence with the -159 G>A single nucleotide polymorphism; dsDNA, random double-strand DNA; h_kit1: human kit1 G4 forming sequence; h_kit2, human kit2 G4 forming sequence; ND, no detectable melting transition via thermal denaturation profiles; TO, thiazole orange.