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The Escherichia Coli UvrD Gene is Inducible by DNA Damage

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Journal Mol Gen Genet
Date 1983 Jan 1
PMID 6355763
Citations 27
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Abstract

The product of the uvrD gene of Escherichia coli is involved in the repair of DNA damage, mismatch repair, and recombination. Phage Mud(Amp, Lac) was used to form a uvrD-lacZ fusion allowing uvrD expression to be followed by measuring the activity of beta-galactosidase, the product of the lacZ gene. uvrD expression was inducible by DNA damage and was under the control of lexA-recA regulatory system. Mutations in the uvrD gene that result in different phenotypes in respect to DNA repair and spontaneous mutation have been previously found. The phenotype of the uvrD::Mud(Amp, Lac) mutant was mutator and UV-sensitive but not as deficient in host cell reactivation or repair of methyl methanesulfonate damage as the previously described uvrD3 mutant.

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