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Phage Mu transposes by two distinct pathways depending on the specific stage of its life cycle. A common strand transfer intermediate is resolved differentially in the two pathways. During lytic growth, the intermediate is resolved by replication of Mu initiated within the flanking target DNA; during integration of infecting Mu, it is resolved without(More)
The genome of transposable phage Mu is packaged as a linear segment, flanked by several hundred base pairs of non-Mu DNA. The linear ends are held together and protected from nucleases by the phage N protein. After transposition into the Escherichia coli chromosome, the flanking DNA (FD) is degraded, and the 5-bp gaps left in the target are repaired to(More)
Phage Mu is unique among transposable elements in employing a transposition enhancer. The enhancer DNA segment is the site where the transposase MuA binds and makes bridging interactions with the two Mu ends, interwrapping the ends with the enhancer in a complex topology essential for assembling a catalytically active transpososome. The enhancer is also the(More)
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