[An immunoenzyme method of determining pregnancy-associated alpha 2-glycoprotein]

Methods for purification of pregnancy-associated alpha 2-glycoprotein, obtained antibodies to it, and enzyme immunoassay of this protein are described. Enzyme immunoassay permits measurement of this protein in blood serum and mononuclear cell cultures in a wide range of concentrations. The method sensitivity may be improved by removing the antibodies cross-reacting with animal proteins.