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prlF antitoxin for toxin YhaV_toxin PrlF_antitoxin is a family of bacterial antitoxins that neutralises the toxin YhaV. PrlF is labile and forms a homodimer that then binds to the YhaV toxin thereby neutralising its ribonuclease activity. Alone, it can also act as a transcription factor. The YhaV/PrlF complex binds the prlF-yhaV operon, probably regulating its expression negatively. Over-expression of PrlF leads to increased doubling time. |
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