Table 2

Binding free energy comparison between the experimental and LIE (Glide/Prime) or LIE (Affinity/SA) values for compounds 1 through 6


ΔGbind(kcal/mol)


Compound
LIE (Glide/Prime)
LIE (Affinity/SA)
Experimental

1
-9.6
-10.1
-10.1
2
-9.9
-9.9
-9.9
3
-9.8
-8.7
-8.9
4
-8.8
-8.7
-8.8
5
-7.5
-8.9
-8.8
6
-7.9
-7.3
-7.2

The Glide/Prime LIE fit was determined using the following equation with a RMSD of 0.6 kcal/mol: ΔGbind = 0.381<ΔUvdw> + 0.028<ΔUelec> + 1.271ΔSASA. The Affinity/SA LIE fit was determined using the following equation with a RMSD of 0.1 kcal/mol: ΔGbind = 0.348<ΔUvdw> + 0.032<ΔUelec> + 1.084ΔSASA. The Experimental ΔGbind values were calculated from the experimental Ki values (see Table 1) assumed to be equivalent to KD, using ΔGbind = RT ln Ki for T = 298 K.

Padgett et al. Journal of Molecular Signaling 2008 3:5   doi:10.1186/1750-2187-3-5