PMID:15792799

Citation	Gur, E, Katz, C and Ron, EZ (2005) All three J-domain proteins of the Escherichia coli DnaK chaperone machinery are DNA binding proteins. FEBS Lett. 579:1935-9
Abstract	DnaJ, DjlA and CbpA are the J-domain proteins of DnaK, the major Hsp70 of Escherichia coli. CbpA was originally discovered as a DNA binding protein. Here, we show that DNA binding is a property of DnaJ and DjlA as well. Of special interest in this respect is DjlA, as this cytoplasmic protein is membrane bound and, as shown here, its affinity for DNA is extremely high. The finding that all the three J-proteins of DnaK are DNA binding proteins sheds new light on the cellular activity of these proteins.
Links	PubMed Online version:10.1016/j.febslet.2005.01.084
Keywords	DNA/metabolism; DNA-Binding Proteins/chemistry; DNA-Binding Proteins/genetics; DNA-Binding Proteins/metabolism; Escherichia coli Proteins/chemistry; Escherichia coli Proteins/genetics; Escherichia coli Proteins/metabolism; HSP40 Heat-Shock Proteins; HSP70 Heat-Shock Proteins/chemistry; HSP70 Heat-Shock Proteins/genetics; HSP70 Heat-Shock Proteins/metabolism; Heat-Shock Proteins/chemistry; Heat-Shock Proteins/genetics; Heat-Shock Proteins/metabolism; Immunoprecipitation; Molecular Chaperones/chemistry; Molecular Chaperones/genetics; Molecular Chaperones/metabolism; Protein Structure, Tertiary
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