![Sample our Bioscience journals, sign in here to start your access, Latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5925/TOC-Subject-Sample-2021-Bioscience.jpg"})
Abstract
Ovarian cytosol from immature, hypophysectomized rats was used to characterize the biochemical properties of ovarian androgen receptor and to develop a reliable and convenient assay procedure for its measurement in small quantities of tissue. The results show that Sephadex G-25 columns provide a rapid and reliable method to separate bound from free testosterone for assay of androgen receptor in the ovarian tissue. The binding affinity (KD=0.6 nM) and sedimentation value (ES) for the ovarian androgen receptor are similar to other steroid receptors and is saturable. It is inactivated by heat and protease digestion and the binding is specific for potent androgens. The ovary contains approximately equal quantities of androgen and estrogen receptor. A physiological role for the presence of androgen receptor in the ovarian tissue is proposed.