5 pregnene 3,20 dione 1 5 pregnene 4,20 dione 1 A-Homo pregnane 1 Animals 1 COS Cells 1 Cercopithecus aethiops 1 Ligands 1 Models, Molecular 1 Molecular Dynamics Simulation 1 Molecular dynamics 1 Pregnanes 1 Progestagen 1 Progesterone 1 Progesterone receptor 1 RNA 1 Receptors, Progesterone 1 animal cell 1 article 1 biological activity 1 breast cancer 1 cancer cell 1 cell strain COS1 1 complementary DNA 1 crystal structure 1 gestagen 1 hormone receptor interaction 1 hydrogen bond 1 ligand 1 ligand binding 1 mineralocorticoid receptor 1