Introduction: GrpE , co-chaperone of E.coli, participates actively in the response to hyperosomotic and heat shock by preventing the aggregation of stress-denatured proteins in association with DnaK. This protein is the nucleotide exchange factor for DnaK and may function as a thermosensor. Several rounds of ATP-dependent interactions between DnaJ, DnaK and GrpE are required for fully efficient folding.Description: GrpE Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 197 amino acids and having a molecular mass of 21.8 kDa.The GrpE is purified by proprietary chromatographic techniques.Physical Appearance: Sterile Filtered colorless solution.Formulation: The HSP24 protein solution contains 20mM Tris-HCl pH-8 and 0.1M NaCl.Stability: Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.For long term storage it is recommended to add a carrier protein (0.1% HAS or BSA).Avoid multiple freeze-thaw cycles.