Hsp70 chaperones facilitate protein folding, complex assembly and translocation through membranes. This Review discusses recent insights into how Hsp70 and its co-chaperones — J-domain proteins and nucleotide exchange factors — exert such functions, achieve substrate specificity and determine protein fate (folding or degradation).
- Anne Wentink
- Rina Rosenzweig
- Bernd Bukau