[Immuno-chemical and physico-chemical properties of human prostatic beta-globulin]

Distribution of prostate beta-globulin in tissues was studied by means of rocket-linear immunoelectrophoresis. The concentration of protein, exceeding 0.1 microgram/ml, was detected only in prostate extracts, seminal plasma and prostatic fluid. Purification of human prostate beta-globulin and its main physico-chemical properties are described. The charge of the protein molecule was altered under influence of various factors. A minor carbohydrate component was detected in the prostate beta-globulin; the protein was found to interact noncovalently with heteropolysaccharides (heparin, dextran sulfate).