Summary
Lambda transducing phages carying the excision repair genes uvrA + and uvrC + were selected from a pool of λ phages carrying EcoR1 fragments of E. coli DNA. These phages and also λuvrB + (obtained from Gottesman) were used to make lysogens of excision-defective strains carrying uvrA -, uvrB - or uvrC -. Lambda uvrA + was found to transduce strains carrying uvrA - but not those carrying uvrB - or uvrC -, to normal ultraviolet resistance. Similarly, λuvrB + and λuvrC + were found to complement only the corresponding uvr - allele. The λ transducing phages were co-transduced with gal + by P1 phage into lysogenic gal- recipients, and presumably were integrated at the normal prophage site.
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Communicated by H.W. Boyer
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Auerbach, J., Howard-Flanders, P. The isolation and genetic characteristics of lambda transducing phages of the uvrA + and uvrC + genes of E. coli K12. Molec. Gen. Genet. 168, 341–344 (1979). https://doi.org/10.1007/BF00271506
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DOI: https://doi.org/10.1007/BF00271506