Crucial HSP70 co-chaperone complex unlocks metazoan protein disaggregation
2015
Microbes eliminate toxic intracellular protein aggregates thanks to HSP100 disaggregases, which are missing from animal cells. Now Bernd Bukau and colleagues have discovered an efficient protein disaggregation system in metazoan cells, which requires transient interactions between J-protein co-chaperones of classes A and B, which synergistically boost HSP70-dependent disaggregation activity. This system provides a flexible further level of regulation for metazoan protein quality control, with direct relevance to human diseases such as age-related neurodegeneration.
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