J. Bacteriol., Sep 1996, 5550-5554, Vol 178, No. 18
E Rivera, L Vila and J Barbe
The uvrB gene of Pseudomonas aeruginosa has been isolated from a genomic
library by complementation of an Escherichia coli uvrB mutant. The complete
nucleotide sequence of P. aeruginosa uvrB consists of 2,013 bp, encoding a
polypeptide of 670 amino acids. A P. aeruginosa SOS consensus region, which
functions as a binding site for the LexA repressor molecule, is not present
in the upstream region of the uvrB gene isolated. By transcriptional
fusions with a reporter gene, it has been demonstrated that, contrary to
what happens with the homologous gene of E. coli, the P. aeruginosa uvrB
gene is not DNA damage inducible. Nevertheless, the UvrB protein must be
functional in P. aeruginosa cells because a uvrB-defective mutant is
extremely sensitive to UV radiation.
Copyright © 1996, American Society for Microbiology
The uvrB gene of Pseudomonas aeruginosa is not DNA damage inducible
Department of Genetics and Microbiology, Autonomous University of Barcelona Bellaterra, Spain.
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