Immunoassay of Androgen Binding Protein in Blood: A New Approach for Study of the Seminiferous Tubule

Abstract
Androgen binding protein, a secretory product of seminiferous tubules, was isolated by means of affinity chromatography. A radioimmunoassay was developed and used to identify androgen binding protein in rat plasma. The ability to measure a testicular protein in blood provides a new method for investigation of seminiferous tubular physiology.