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[The immunochemical identification of beta-globulin in human seminal plasma].

Using affinity chromatography there was isolated a protein from human seminal plasma, which was named beta-globulin of seminal plasma (beta-GSP). It was demonstrated, that beta-GSP possesses heterogeneity, consists of two subunits with the M. W. about 19 and 15 kD, it has electrophoretic mobility of b1-globulin and possesses affinity to immobilized 17-beta-estradiol. Relatively high concentration of beta-GSP was found in seminal plasma. Besides, this protein was determined in small amounts in saliva. One can suppose, that beta-GSP is a secretory protein.