T4 lysozyme L99A model system AMBER parm 96 for protein + GAFF with AM1-BCC charges for ligand Explicit solvent data from Mobley/Graves et al. JMB 371:1118, 2007. http://dx.doi.org/10.1016/j.jmb.2007.06.002 Hydration free energy data from Mobley et al. JPC B 112:938, 2008. http://dx.doi.org/10.1021/jp0764384 hydration binding moleucule exp calc exp YANK explicit 2-fluorobenzaldehyde ** -7.52 *** -5.6 -3.1 phenol -6.61 -6.05 *** -5.0 -1.1 ethylbenzene -0.79 -0.52 -5.76 -8.6 -5.8 toluene -0.89 -0.91 -5.52 -8.7 -4.1 p-xylene -0.80 -0.31 -4.67 -7.7 -3.6 12-dichlorobenzene -1.36 -0.66 -6.37 -8.5 -5.7 All quantities in kcal/mol; computed numbers truncated to statistically uncertain digit. ** - data not available *** - binding weaker (more positive) than -2.74 kcal/mol