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  • Title: Characterization of thymocyte subpopulations by enzymatic markers.
    Author: Livne PM, Sidi Y, Trainin N, Sperling O.
    Journal: Thymus; 1983 Sep; 5(5-6):393-7. PubMed ID: 6318405.
    Abstract:
    The activities of ecto-5'-nucleotidase (E5N), deoxyadenosine kinase (dAK) and deoxyguanosine kinase (dGK), were determined in thymocyte subpopulations, separated by peanut agglutinin (PNA). The activity of dAK in the PNA+ (agglutinated by PNA) thymocyte subpopulation was 2.5-fold that in the PNA- subpopulation. The activities of E5N and of dKG were found to be higher in the PNA- than in the PNA+ subpopulation by 15- and 4-fold, respectively. The activity of these enzymes can therefore be utilized to characterize the thymocyte subpopulation. In addition, since PNA+ cells are considered to be young immature precursors of the PNA- thymocytes, the activity of these enzymes may serve also as markers for the degree of maturation of the T cells.
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