Gene order in prophage P22
نویسندگان
چکیده
منابع مشابه
A phage P22 gene controlling integration of prophage.
A mutually noncomplementing group of phage P22 mutants (L mutants) have been isolated which cannot accomplish a late step necessary for prophage integration. L mutants produce turbid plaques and lead to cell survival on high multiplicity infection, but the infecting phage genomes are incapable of integrating as prophage and are progressively diluted among the segregating cells. L mutants can be...
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Hycanthone was found to be an inducer of P22 prophage in Salmonella typhimurium LT-2(P22).
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Although large numbers of temperate phages are known to exist in nature, only a small number of these have been examined in much detail. Foremost among these is the coliphage ~, which has been studied in great depth over the past two decades. However, it is already quite clear that phage ~ represents only one alternative among many with respect to any of its interesting properties. Most other t...
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P22-mediated generalized transduction in S. typhimwiwn occurs in both sensitive and lysogenic recipient bacteria, but the efficiency of transduction is significantly higherinsensitivecells t.han in wild-type P22 lysogens. This reduction in the efficiency of transduction is under the control of the prophage sieA gene; this gene is also responsible for the exclusion of superinfect,ing phage. Expe...
متن کاملGenetics of bacteriophage P22. I. Isolation of prophage deletions which affect immunity to superinfection.
Two kinds of prophage deletions of the Salm.onella phage P22 were isolated. One type of deletion was isolated by simultaneously selecting for loss of a host gene (pro) adjacent to the integrated prophage and for survival at the nonpermissive temperature of a temperature-inducible (tse2) lysogen. The second type of deletion was isolated by transduction to tetracycline resistance using high-frequ...
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ژورنال
عنوان ژورنال: Virology
سال: 1965
ISSN: 0042-6822
DOI: 10.1016/0042-6822(65)90166-2