Mapping Functional Group Free Energy Patterns at Protein Occluded Sites: Nuclear Receptors and G-Protein Coupled Receptors. - Sirish Kaushik Lakkaraju; Wenbo Yu 002; E. Prabhu Raman; Alena V. Hershfeld; Lei Fang; Deepak Deshpande; Alexander D. MacKerell Jr. (J. Chem. Inf. Model., 2015)