title: Micellar aggregation of   5 -3-keto steroids lacking a polar C-17 group and its relation to the activity and specificity of the   5 -  4 -3-ketosteroid isomerase of Pseudomonas testosteroni.
mesh_terms: D000731:Androstanes; D001665:Binding Sites; D002776:Cholestanes; D003102:Colloids; D007535:Isomerases; D007664:Ketosteroids; D007700:Kinetics; D046911:Macromolecular Substances; D000432:Methanol; D011278:Pregnanes; D011487:Protein Conformation; D011549:Pseudomonas / Q000201:enzymology*; D012995:Solubility; D012997:Solvents; D013053:Spectrophotometry; D013329:Structure-Activity Relationship; D013501:Surface-Active Agents
chemical_list: D000731:Androstanes; D002776:Cholestanes; D003102:Colloids; D007664:Ketosteroids; D046911:Macromolecular Substances; D011278:Pregnanes; D012997:Solvents; D013501:Surface-Active Agents; D007535:Isomerases; D000432:Methanol