[Characteristics of the nucleic component of a nucleoprotein complex secreted by tumor cells].

The characteristic of the nucleic component from the nucleoprotein complex excreted by tumour cells into ascitic fluid is presented. Using enzymes which hydrolyze nucleic acids and applying the methods of cellulose chromatography and ethidium bromide identification of the double-stranded structure of nucleic acids it is shown that the nucleic component of the excreted complex is a heterogeneous system presented by double-stranded structures which involve DNA-RNA hybrid molecules.