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Phage Transposon Mutagenesis

 Last Update: 2021-01-25
 Source: Internet
 Author: User

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Phage transduction is an attractive method of genetic manipulation in mycobacteria. ΦMycoMarT7 is well suited for transposon mutagenesis as it is temperature sensitive for replication and contains T7 promoters that promote transcription, a highly active transposase gene, and an
Escherichia coli
oriR6 K origin of replication. Mycobacterial transposon mutant libraries produced by ΦMycoMarT7 transduction are amenable to both forward and reverse genetic studies. In this protocol, we detail the preparation of ΦMycoMarT7, including a description of the phage, reconstitution of the phage, purification of plaques, preparation of phage stock, and titering of phage stock. We then describe the transduction procedure and finally outline the isolation of individual transposon mutants.

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