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Two-dimensional gel electrophoresis of nuclear proteins of different stages of B-chronic lymphocytic leukaemia.

Two-dimensional polyacrylamide gel electrophoresis was used to compare the composition of nuclear proteins from normal and B-chronic lymphocytic leukaemia (B-CLL) mononuclear cells. Some differences in the electrophoretic behaviour of these proteins from normal and transformed cells, especially with molecular weights/pI of 14-16 kD/5.9-7.4; 28-32 kD/4.9-5.5; 38-39 kD/5.4-6.1; 44-46 kD/5.1-5.6; 47-52 kD/5.0-5.6; 64-69 kD/5.1-5.7, and 95-105 kD/5.2-5.5, were observed. The comparative analysis of nuclear proteins, obtained from mononuclear cells of patients with B-CLL at different stages of development, indicated that the expression of some protein components might be correlated with the progression of this disease.