All three J-domain proteins of the Escherichia coli DnaK chaperone machinery are DNA binding proteins

Eyal Gur, Chen Katz, Eliora Z. Ron

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)1935-1939
Number of pages5
JournalFEBS Letters
Volume579
Issue number9
DOIs
StatePublished - 28 Mar 2005

Keywords

  • Chaperones
  • DNA binding proteins
  • Heat shock response

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