LEdock and LEexp correlations for Group A and B ligands with human ERa-LBD. (A) Group A ligands (filled circles) with names (Fig. 2, Table 1). (B) Group B ligands (open circles) with names according to Bergquist et al. (2018) (Fig. 3, Table 2). LEdock = -ΔG/Nh, where LEdock = ligand efficiency for docking, ΔG = free energy of ligand-receptor binding from docking results, and Nh = number of heavy (non-hydrogen) atoms in the ligand. The Pearson partial correlation coefficient (rp, to correct for the covariate, Nh) and associated p-value are shown in each panel.