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Gene Review

katE  -  catalase HPII, heme d-containing

Escherichia coli str. K-12 substr. MG1655

Synonyms: ECK1730, JW1721
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Disease relevance of katE

  • Polyamine-deficient E. coli mutant has increased susceptibility to exogenous H2O2, and this cell cytotoxicity was relieved to a wild-type level by addition of putrescine or spermidine (1mM), which restored the transcriptional induction of ahpC, katG, and katE genes [1].
  • We now report that the hypersensitivity of Deltafur mutants to UVA irradiation is associated with reduced hydroperoxidase I (HPI) and hydroperoxidase II (HPII) activity, and is associated with a decrease in the transcription of katE and katG genes [2].

High impact information on katE


Other interactions of katE

  • In order to understand the molecular basis of selective expression of stationary-phase genes by RNA polymerase containing sigma38 (Esigma38) in Escherichia coli, we examined transcription from the stationary-phase promoters, katEP, bolAP, hdeABP, csgBAP, and mcbP, in vivo and in vitro [8].


  1. Transcription of ahpC, katG, and katE genes in Escherichia coli is regulated by polyamines: polyamine-deficient mutant sensitive to H2O2-induced oxidative damage. Jung, I.L., Kim, I.G. Biochem. Biophys. Res. Commun. (2003) [Pubmed]
  2. Reduced hydroperoxidase (HPI and HPII) activity in the Deltafur mutant contributes to increased sensitivity to UVA radiation in Escherichia coli. Hoerter, J.D., Arnold, A.A., Ward, C.S., Sauer, M., Johnson, S., Fleming, T., Eisenstark, A. J. Photochem. Photobiol. B, Biol. (2005) [Pubmed]
  3. RpoS-regulated genes of Escherichia coli identified by random lacZ fusion mutagenesis. Vijayakumar, S.R., Kirchhof, M.G., Patten, C.L., Schellhorn, H.E. J. Bacteriol. (2004) [Pubmed]
  4. The yhhP gene encoding a small ubiquitous protein is fundamental for normal cell growth of Escherichia coli. Yamashino, T., Isomura, M., Ueguchi, C., Mizuno, T. J. Bacteriol. (1998) [Pubmed]
  5. Template secondary structure can increase the error frequency of the DNA polymerase from Thermus aquaticus. Loewen, P.C., Switala, J. Gene (1995) [Pubmed]
  6. Nucleotide sequence of Escherichia coli katE, which encodes catalase HPII. von Ossowski, I., Mulvey, M.R., Leco, P.A., Borys, A., Loewen, P.C. J. Bacteriol. (1991) [Pubmed]
  7. The cysteines of catalase HPII of Escherichia coli, including Cys438 which is blocked, do not have a catalytic role. Sevinc, M.S., Ens, W., Loewen, P.C. Eur. J. Biochem. (1995) [Pubmed]
  8. Factors influencing preferential utilization of RNA polymerase containing sigma-38 in stationary-phase gene expression in Escherichia coli. Kim, E.Y., Shin, M.S., Rhee, J.H., Choy, H.E. J. Microbiol. (2004) [Pubmed]
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