Docking results of POPs with AR/LBD. Generated 100 docking poses were clustered by root mean square (RMS) difference with a cutoff value 0.2 nm for each case. The binding energy shown in the x-axis is the mean value of each cluster. (A) is for 4,4’-DDE and (B) is for CB-153. The chosen models are marked by PBS1-5 according to the positions of binding sites.