Structural highlights
Function
[HS105_HUMAN] Acts as a nucleotide-exchange factor (NEF) for chaperone proteins HSPA1A and HSPA1B, promoting the release of ADP from HSPA1A/B thereby triggering client/substrate protein release (PubMed:24318877). Prevents the aggregation of denatured proteins in cells under severe stress, on which the ATP levels decrease markedly. Inhibits HSPA8/HSC70 ATPase and chaperone activities (By similarity).[UniProtKB:Q60446][UniProtKB:Q61699][1]
References
- ↑ Rauch JN, Gestwicki JE. Binding of human nucleotide exchange factors to heat shock protein 70 (Hsp70) generates functionally distinct complexes in vitro. J Biol Chem. 2014 Jan 17;289(3):1402-14. doi: 10.1074/jbc.M113.521997. Epub 2013 , Dec 5. PMID:24318877 doi:http://dx.doi.org/10.1074/jbc.M113.521997
