Production of heat-shock proteins is induced when a living cell is exposed to a rise in temperature. The heat-shock response of protein DnaK synthesis in E.coli for temperature shifts T-->T+DeltaT and T-->T-DeltaT is measured as a function of the initial temperature T. We observe a reversed heat shock at low T. The magnitude of the shock increases when one increases the distance to the temperat...

All cells display a response to adverse environmental conditions by inducing the synthesis of a set of proteins, the heat shock proteins (Hsps). Hsp26 belongs to the family of small heat shock proteins (sHsps). The yeast Saccharomyces cerevisiae has three major sHsps: Hsp26 [I], Hspl2 [2] and Hsp30 [3]. Small Hsps have certain common structural and regulatory charactenstics; they are induced by...