Quantitation of c- and v-Myc turnover in Burkitt's and non-Burkitt's cells.

(A), Burkitt's lymphoma cells lines, (B) U-937-myc-6 cells, (C) transiently transfected U2OS cells. The results shown in Figures 3 and4B, C were quantitated by image analysis. The cell lines and the status of their respective endogenous c-Myc proteins or constructs used for transfection are indicated in the figure. The quantitation is presented in a logarithmic scale as percentage of remaining labeled protein during the times of chase indicated.