Mechanisms for regulation of Hsp70 function by Hsp40

Cell Stress Chaperones. Winter 2003;8(4):309-16. doi: 10.1379/1466-1268(2003)008<0309:mfrohf>;2.


The Hsp70 family members play an essential role in cellular protein metabolism by acting as polypeptide-binding and release factors that interact with nonnative regions of proteins at different stages of their life cycles. Hsp40 cochaperone proteins regulate complex formation between Hsp70 and client proteins. Herein, literature is reviewed that describes the mechanisms by which Hsp40 proteins interact with Hsp70 to specify its cellular functions.

Publication types

  • Research Support, U.S. Gov't, P.H.S.
  • Review

MeSH terms

  • Adenosine Triphosphatases / chemistry
  • Adenosine Triphosphatases / metabolism
  • Animals
  • HSP40 Heat-Shock Proteins
  • HSP70 Heat-Shock Proteins / chemistry
  • HSP70 Heat-Shock Proteins / metabolism*
  • Heat-Shock Proteins / chemistry
  • Heat-Shock Proteins / metabolism*
  • Humans
  • Protein Binding
  • Protein Structure, Tertiary


  • DNAJB1 protein, human
  • HSP40 Heat-Shock Proteins
  • HSP70 Heat-Shock Proteins
  • Heat-Shock Proteins
  • Adenosine Triphosphatases