Animals steroid unclassified drug 8 Protein Binding 6 animal 6 binding affinity 6 controlled study 6 drug receptor binding 6 metabolism 6 Steroids 5 in vitro study 5 in vivo study 5 ligand binding 5 molecular dynamics 5 nonhuman 5 structure activity relation 5 21 hydroxy 6,19 epoxyprogesterone 4 Humans 4 Models, Molecular 4 Receptors, Glucocorticoid 4 article 4 cell strain L 929 4 dexamethasone 4 dimerization 4 drug mechanism 4 mifepristone 4 protein binding 4 protein function 4 21 hemisuccinate 6,19 epoxyprogesterone 3 COS Cells 3