Abstract:Bacillus subtilis bacteriophage AR9 employs two strategies for efficient host takeover control and host antiviral defense evasion - it encodes two unique DNA-dependent RNA polymerases (RNAPs) that function at different stages of virus morphogenesis in the cell, and its double stranded (ds) DNA genome contains uracils instead of thymines throughout. Unlike any known RNAP, the AR9 non-virion RNAP (nvRNAP), which transcribes late phage genes, recognizes promoters in the template strand of dsDNA and efficiently di… Show more
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