Structural highlights
Function
[CLPB_ECOLI] Part of a stress-induced multi-chaperone system, it is involved in the recovery of the cell from heat-induced damage, in cooperation with DnaK, DnaJ and GrpE. Acts before DnaK, in the processing of protein aggregates. Protein binding stimulates the ATPase activity; ATP hydrolysis unfolds the denatured protein aggregates, which probably helps expose new hydrophobic binding sites on the surface of ClpB-bound aggregates, contributing to the solubilization and refolding of denatured protein aggregates by DnaK.[1] [2] [3]
References
- ↑ Barnett ME, Zolkiewska A, Zolkiewski M. Structure and activity of ClpB from Escherichia coli. Role of the amino-and -carboxyl-terminal domains. J Biol Chem. 2000 Dec 1;275(48):37565-71. PMID:10982797 doi:http://dx.doi.org/10.1074/jbc.M005211200
- ↑ Mogk A, Schlieker C, Strub C, Rist W, Weibezahn J, Bukau B. Roles of individual domains and conserved motifs of the AAA+ chaperone ClpB in oligomerization, ATP hydrolysis, and chaperone activity. J Biol Chem. 2003 May 16;278(20):17615-24. Epub 2003 Mar 6. PMID:12624113 doi:http://dx.doi.org/10.1074/jbc.M209686200
- ↑ Kedzierska S, Akoev V, Barnett ME, Zolkiewski M. Structure and function of the middle domain of ClpB from Escherichia coli. Biochemistry. 2003 Dec 9;42(48):14242-8. PMID:14640692 doi:http://dx.doi.org/10.1021/bi035573d
