[Studies in heterogeneity of thymus lymphocytotropic low-molecular preparation by gel chromatography on Sephadex G-10].

The low-molecular thymus preparation obtained by dialysis and acetone precipitation is studied by gel chromatography on Sephadex G-10. Gel chromatography was performed on the column equilibrated with 6 M urea at pH 3. The column is calibrated with NADP, ATP, sucrose, glucose and KH2-PO4. The preparation was divided into two fractions with approximate molecular weights of 120-200 and 500-700 daltons.