Characterisation of the bacteriophage T4 comC alpha 55.6 and comCJ mutants. A possible role in an antitermination process.

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ID: 21579
1998
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Ranked #115 of 205 articles by views in FEMS microbiology letters

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Abstract
We have performed a new screen for T4 mutants (comC) that overcome the phage growth restriction caused by the Escherichia coli rho/tabC mutants. We show that one such mutant (comCJ) identifies a different gene from that identified by canonical comC mutants. We compare the regulation of T4 prereplicative transcription in a rho/tabC mutant infected by T4 wild-type, by a canonical comC mutant (comC alpha 55.6) and by comCJ. The transcription rates of the two prereplicative genes 39 and 43 is depressed in a T4 wild-type infected tabC host mutant. When comC alpha 55.6 and/or comCJ single and double mutants are the infecting phages, transcription of genes 39 and 43 is resumed to different extents; in particular, in the double mutant infections there appears to be a synergistic effect on transcription. Furthermore, we find that the comC alpha 55.6 phage mutant affects the transcription rate of the gene rIIA in a wild-type host.
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chiurazzi1998characterisationfems Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Chiurazzi, M;Pulitzer, J F;
Journal FEMS microbiology letters
Year 1998
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