Induction of heat shock proteins in Chinese hamster ovary cells and development of thermotolerance by intermediate concentrations of puromycin.


During 4 hr after puromycin (PUR: 20 micrograms/ml) treatment, the synthesis of three major heat shock protein families (HSPs: Mr = 110,000, 87,000, and 70,000) was enhanced 1.5-fold relative to that of untreated cells, as studied by one-dimensional gel electrophoresis. The increase of unique HSPs, if studied with two-dimensional gels, would probably be… (More)


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