Summary
Almost all organisms respond to upshifts in temperature (heat shock) by synthesizing a set of proteins called heat-shock proteins (HSPs). These HSPs are induced not only by heat shock but also by various other environmental stresses. Induction of HSPs is regulated by the trans-acting heat-shock factors (HSFs) and cis-acting heat-shock element (HSE) present at the promoter region of each heat-shock gene. HSPs usually are also expressed constitutively at normal growth temperatures and have basic and indispensable functions in the life cycle of proteins as molecular chaperones, as well as playing a role in protecting cells from deleterious stresses. Molecular chaperones are able to inhibit the aggregation of partially denatured proteins and refold them using the energy of ATP. Recently, there have been expectations for the use of molecular chaperones for the protection against and therapeutic treatment of inherited diseases caused by protein mis-folding. In this review, we focus on the mammalian Hsp-40, a homolog of bacterial DnaJ heat-shock protein, and the beneficial functions of molecular chaperones.
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Ohtsuka, K., Hata, M. (2001). Induction of Heat-Shock Proteins and Their Biological Functions. In: Kosaka, M., Sugahara, T., Schmidt, K.L., Simon, E. (eds) Thermotherapy for Neoplasia, Inflammation, and Pain. Springer, Tokyo. https://doi.org/10.1007/978-4-431-67035-3_37
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DOI: https://doi.org/10.1007/978-4-431-67035-3_37
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