21 hemisuccinate 6,19 epoxyprogesterone 21 hydroxy 6,19 epoxyprogesterone 4 Animals 4 COS Cells 4 Cell Line 4 Cercopithecus 4 Cercopithecus aethiops 4 DNA 4 DNA drug complex 4 Dimerization 4 Electrophoretic Mobility Shift Assay 4 Immunoprecipitation 4 Models, Molecular 4 Molecular Dynamics Simulation 4 Protein Binding 4 Receptors, Glucocorticoid 4 Steroids 4 animal 4 article 4 binding affinity 4 cell assay 4 cell culture 4 cell line 4 cell strain BHK 4 cell strain COS1 4 cell strain COS7 4 cell strain L 929 4 cell type 4 chemical structure 4 computer model 4