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  • Title: Effect of null mutations in dnaK and dnaJ genes on conjugational DNA transfer, proteolysis and novobiocin susceptibility of Escherichia coli.
    Author: Modrzewska M, Karpiński P, Grudniak A, Wolska KI.
    Journal: Acta Microbiol Pol; 2002; 51(3):217-24. PubMed ID: 12588096.
    Abstract:
    Escherichia coli null dnaJ and dnaKdnaJ mutants, when introduced to Hfr donor, impair its ability to DNA transfer during conjugation. The additive effect of both mutations was shown. Lack of DnaK and DnaJ chaperones also decrease the extent of proteolysis in mutant strains. This effect is seen only at 42 degrees C. The influence of double dnaKdnaJ deletion but not single dnaJ deletion on novobiocin susceptibility was also demonstrated.
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