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DNAJs: more than substrate delivery to HSPA

Dekker, S. L., Kampinga, H. H. & Bergink, S., 30-Jun-2015, In : Frontiers in Molecular Biosciences. 2, 8 p., 35.

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Proteins are essential components of cellular life, as building blocks, but also to guide and execute all cellular processes. Proteins require a three-dimensional folding, which is constantly being challenged by their environment. Challenges including elevated temperatures or redox changes can alter this fold and result in misfolding of proteins or even aggregation. Cells are equipped with several pathways that can deal with protein stress. Together, these pathways are referred to as the protein quality control network. The network comprises degradation and (re)folding pathways that are intertwined due to the sharing of components and by the overlap in affinity for substrates. Here, we will give examples of this sharing and intertwinement of protein degradation and protein folding and discuss how the fate of a substrate is determined. We will focus on the ubiquitylation of substrates and the role of Hsp70 co-chaperones of the DNAJ class in this process.

Original languageEnglish
Article number35
Number of pages8
JournalFrontiers in Molecular Biosciences
Volume2
Publication statusPublished - 30-Jun-2015

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