PMID:8002599: Difference between revisions

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<span style = 'font-size: large'> '''Fowler, RG, Erickson, JA and Isbell, RJ'''  (1994) Activity of the Escherichia coli mutT mutator allele in an anaerobic environment.''J. Bacteriol.'' '''176''':7727-9</span>
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!align=left  |Citation
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'''Fowler, RG, Erickson, JA and Isbell, RJ'''  (1994) Activity of the Escherichia coli mutT mutator allele in an anaerobic environment. ''J. Bacteriol.'' '''176''':7727-9
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!align=left  |Abstract
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Mutation frequencies for an Escherichia coli mutT strain were measured in both aerobic and anaerobic environments. When cells were grown in a rich medium (L broth), mutation frequencies were similar in both aerobic and anaerobic conditions. In contrast, when grown in a minimal medium, mutT anaerobic mutation frequencies were reduced dramatically compared with aerobic values, which were similar to L broth frequencies. L broth mutT cultures treated with a commercial enzyme complex that reduces free oxygen in the medium also showed strongly reduced anaerobic mutation frequencies. These results indicate that the biological role of the MutT protein is to prevent oxidative damage from becoming mutagenic.
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[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=8002599 PubMed] [http://www.ncbi.nlm.nih.gov/pmc/articles/PMC197232 PMC197232]


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|{{TableHeadingColor}} |'''Abstract''' || Mutation frequencies for an Escherichia coli mutT strain were measured in both aerobic and anaerobic environments. When cells were grown in a rich medium (L broth), mutation frequencies were similar in both aerobic and anaerobic conditions. In contrast, when grown in a minimal medium, mutT anaerobic mutation frequencies were reduced dramatically compared with aerobic values, which were similar to L broth frequencies. L broth mutT cultures treated with a commercial enzyme complex that reduces free oxygen in the medium also showed strongly reduced anaerobic mutation frequencies. These results indicate that the biological role of the MutT protein is to prevent oxidative damage from becoming mutagenic.
!align=left  |Keywords
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Aerobiosis; Alleles; Anaerobiosis; DNA Damage; DNA Repair; Escherichia coli/genetics; Genes, Bacterial/genetics; Mutagenesis/genetics
|{{TableHeadingColor}} nowrap |'''Links''' ||  [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=8002599 PubMed]
 
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==Significance {{HelpIcon|Help:Literature}} ==
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==Annotations {{HelpIcon|Help:Literature}}==
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!Gene product!!Qualifier!!GO ID!!GO term name!!Evidence Code!!with/from!!Aspect!!Notes!!Status
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Latest revision as of 04:52, 15 September 2013

Citation

Fowler, RG, Erickson, JA and Isbell, RJ (1994) Activity of the Escherichia coli mutT mutator allele in an anaerobic environment. J. Bacteriol. 176:7727-9

Abstract

Mutation frequencies for an Escherichia coli mutT strain were measured in both aerobic and anaerobic environments. When cells were grown in a rich medium (L broth), mutation frequencies were similar in both aerobic and anaerobic conditions. In contrast, when grown in a minimal medium, mutT anaerobic mutation frequencies were reduced dramatically compared with aerobic values, which were similar to L broth frequencies. L broth mutT cultures treated with a commercial enzyme complex that reduces free oxygen in the medium also showed strongly reduced anaerobic mutation frequencies. These results indicate that the biological role of the MutT protein is to prevent oxidative damage from becoming mutagenic.

Links

PubMed PMC197232

Keywords

Aerobiosis; Alleles; Anaerobiosis; DNA Damage; DNA Repair; Escherichia coli/genetics; Genes, Bacterial/genetics; Mutagenesis/genetics

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