Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1984-11-26
pubmed:abstractText
Mutation of the recN gene of Escherichia coli in a recBC sbcB genetic background blocks conjugational recombination and confers increased sensitivity to UV light and mitomycin C. The basis for this phenotype was investigated by monitoring the properties associated with recN mutations in otherwise wild-type strains. It was established that recN single mutants are almost fully resistant to UV irradiation, and that there is no detectable defect in repair of UV lesions by excision, error-prone, or recombinational mechanisms. However, recN mutations confer sensitivity to mitomycin C and ionizing radiation both in wild-type and recB sbcB strains. The sensitivity to ionizing radiation is correlated with a deficiency in the capacity to repair DNA double-strand breaks by a UV inducible mechanism. Recombinant lambda phages that complement the recombination and repair defects of recN recBC sbcB mutants have been identified, and the recN gene has been cloned from these phages into a low copy-number plasmid.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0026-8925
pubmed:author
pubmed:issnType
Print
pubmed:volume
195
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
267-74
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Repair of DNA double-strand breaks in Escherichia coli K12 requires a functional recN product.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't