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. 1981 Mar;78(3):1708-11.
doi: 10.1073/pnas.78.3.1708.

Recovery of protein synthesis after heat shock: prior heat treatment affects the ability of cells to translate mRNA

N S Petersen, H K Mitchell

Recovery of protein synthesis after heat shock: prior heat treatment affects the ability of cells to translate mRNA

N S Petersen et al. Proc Natl Acad Sci U S A. 1981 Mar.

Abstract

A mild heat shock at 35 degrees C, which induces heat shock gene expression, greatly enhances survival and the recovery of protein synthesis in Drosophila cells after a higher temperature heat shock. The 35 degrees C treatment is also effective in preventing heat-induced developmental defects in pupae. We show here that the major larval mRNAs are present in approximately normal (25 degrees C) concentrations after a 40.1 degrees C heat shock whether or not the animals receive a pretreatment. This indicates that the pretreatment affects translation directly rather than messenger concentration. We also observe selective translation of heat shock messages and some 25 degrees C messages during recovery from heat shock.

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