Control of lysogeny and antiphage defense by a prophage-encoded kinase-phosphatase module
Yunxue Guo,
Kaihao Tang,
Brandon Sit
et al.
Abstract:The filamentous ‘Pf’ bacteriophages of Pseudomonas aeruginosa play roles in biofilm formation and virulence, but mechanisms governing Pf prophage activation in biofilms are unclear. Here, we identify a prophage regulatory module, KKP (kinase-kinase-phosphatase), that controls virion production of co-resident Pf prophages and mediates host defense against diverse lytic phages. KKP consists of Ser/Thr kinases PfkA and PfkB, and phosphatase PfpC. The kinases have multiple host targets, one of which is MvaU, a hos… Show more
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