title: Salting in progesterone hydroxylases from Aspergillus niger 12 Y.
mesh_terms: D001234:Aspergillus niger / Q000378:metabolism*; D003577:Cytochrome P-450 Enzyme System; D011374:Progesterone; D013255:Steroid 21-Hydroxylase / Q000378:metabolism*; D013250:Steroid Hydroxylases / Q000378:metabolism*
chemical_list: D011374:Progesterone; D003577:Cytochrome P-450 Enzyme System; D013250:Steroid Hydroxylases; D013255:Steroid 21-Hydroxylase; C074514:steroid 11-alpha-hydroxylase