Transduction: Difference between revisions
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Transduction is the transfer of DNA from one bacterium to another by a phage. | Transduction is the transfer of DNA from one bacterium to another by a phage. | ||
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Specialized transducing phages are phage that have a segment of bacterial DNA integrated into their genome. An example of a specialized transducing phage is lambda d''gal'', which carries the ''gal'' operon from ''E. coli''. | Specialized transducing phages are phage that have a segment of bacterial DNA integrated into their genome. An example of a specialized transducing phage is lambda d''gal'', which carries the ''gal'' operon from ''E. coli''. | ||
==Generalized transduction in ''E. coli''== | |||
===Transduction with P1=== | |||
===Transduction with T4=== | |||
==Specialized transduction in ''E. coli''== | |||
Revision as of 13:38, 4 November 2007
Transduction is the transfer of DNA from one bacterium to another by a phage.
Generalized transducing phages accidently package host DNA into a small fraction of the phage capsids produced during lytic infection. Phage P1 is a commonly used generalized transducing phage for E. coli. Any region of the bacterial chromosome can be transferred by a generalized transducing phage.
Specialized transducing phages are phage that have a segment of bacterial DNA integrated into their genome. An example of a specialized transducing phage is lambda dgal, which carries the gal operon from E. coli.