PMID:1379686

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Citation

Puyo, MF, Calsou, P and Salles, B (1992) UV resistance of E. coli K-12 deficient in cAMP/CRP regulation.Mutat. Res. 282:247-52

Abstract

Deletion of genes for adenylate cyclase (delta cya) or cAMP receptor protein (delta crp) in E. coli K-12 confers a phenotype that includes resistance to UV radiation (254 nm). Such mutations lead to UV resistance of uvr+, uvrA, lexA and recA strains which could partly be abolished by the addition of cAMP to delta cya but not to delta crp strain culture medium. This effect was not related to either inducibility of major DNA repair genes or growth rate of the bacteria. Enhanced survival was also observed for UV-irradiated lambda bacteriophage indicating that a repair mechanism of UV lesions was involved in this phenomenon.

Links

PubMed

Keywords

Bacteriophage lambda; Cyclic AMP; Escherichia coli; Gene Expression Regulation, Bacterial; Receptors, Cyclic AMP; SOS Response (Genetics); Ultraviolet Rays

Main Points of the Paper

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Materials and Methods Used

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Phenotype Annotations

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Phenotype of Taxon Information Genotype Information (if known) Condition Information OMP ID OMP Term Name ECO ID ECO Term Name Notes Status

a mutation or genetic difference within a strain

  • Taxon: Escherichia coli
  • Strain: K-12
  • Substrain: MC4100
  • NCBI Taxon ID: 83333
  • Genotype of Reference Strain: cya
  • Genotype of Experimental Strain : cya(del)
  • Reference Condition:

Resistance to UV irridiation (254nm).


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Notes

OMP term: Increase UV resistance. The term is awaiting aprroval.

ECOID: Solid medium. waiting on term approval

References

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