PMID:16970815

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Citation

Crowley, DJ, Boubriak, I, Berquist, BR, Clark, M, Richard, E, Sullivan, L, DasSarma, S and McCready, S (2006) The uvrA, uvrB and uvrC genes are required for repair of ultraviolet light induced DNA photoproducts in Halobacterium sp. NRC-1.Saline Syst. 2:11

Abstract

Sequenced archaeal genomes contain a variety of bacterial and eukaryotic DNA repair gene homologs, but relatively little is known about how these microorganisms actually perform DNA repair. At least some archaea, including the extreme halophile Halobacterium sp. NRC-1, are able to repair ultraviolet light (UV) induced DNA damage in the absence of light-dependent photoreactivation but this 'dark' repair capacity remains largely uncharacterized. Halobacterium sp. NRC-1 possesses homologs of the bacterial uvrA, uvrB, and uvrC nucleotide excision repair genes as well as several eukaryotic repair genes and it has been thought that multiple DNA repair pathways may account for the high UV resistance and dark repair capacity of this model halophilic archaeon. We have carried out a functional analysis, measuring repair capability in uvrA, uvrB and uvrC deletion mutants.

Links

PubMed Online version:10.1186/1746-1448-2-11

Keywords


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:
  • NCBI Taxon ID: 83333
  • Genotype of Reference Strain: uvrA
  • Genotype of Experimental Strain : uvrA(del)
  • Reference Condition:

OMP:0000270

absence of growth

ECO:0000094

biological assay data

Deletion mutation causes hypersensitive to UV when irradiated and incubated in non-photoreactivating conditions, figure 2.

a mutation or genetic difference within a strain

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

0000270

absence of growth

0000094

biological assay data

Deletion mutation causes hypersensitive to UV when irradiated and incubated in non-photoreactivating conditions, figure 2.

a mutation or genetic difference within a strain

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

OMP:0000270

absence of growth

ECO:0000094

biological assay data

Deletion mutation causes hypersensitive to UV when irradiated and incubated in non-photoreactivating conditions, fig 2.


Notes

References

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