Feedback regulation of the heat shock response.
The heat shock response is triggered primarily by nonnative proteins accumulating in a stressed cell and results in increased expression of heat shock proteins (Hsps), i.e., of chaperones capable of participating in the refolding or elimination of nonnative proteins. Best known is the transcriptional part of this response that is mediated predominantly by heat shock factor 1 (HSF1). HSF1 activity is regulated at different levels by Hsps and co-chaperones and is modulated further by a number of mechanisms involving other stress-regulated aspects of cell metabolism.
Voellmy
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Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, FL 33136, USA. rvoellmy@med.miami.edu
D000818:Animals; D004268:DNA-Binding Proteins / Q000737:chemistry / Q000235:genetics / Q000502:physiology*; D025461:Feedback, Physiological; D000076249:Heat Shock Transcription Factors; D006360:Heat-Shock Proteins / Q000502:physiology*; D018869:Heat-Shock Response; D006801:Humans; D018832:Molecular Chaperones / Q000502:physiology; D010766:Phosphorylation; D017510:Protein Folding; D020871:RNA Stability; D014157:Transcription Factors / Q000737:chemistry / Q000235:genetics / Q000502:physiology*; D014158:Transcription, Genetic
D004268:DNA-Binding Proteins; C000619706:HSF1 protein, human; D000076249:Heat Shock Transcription Factors; D006360:Heat-Shock Proteins; D018832:Molecular Chaperones; D014157:Transcription Factors