Bacteriophages Xandras and BigBubba were isolated on Mycobacterium smegmatis mc 2 155 from enriched soil samples. Xandras' genome length is 75,179 bp with 144 predicted protein-coding genes and two tRNAs. BigBubba's genome length is 75,006 bp with 147 predicted protein-coding genes and two tRNAs. Each genome contains a cyclic oligonucleotide sequestering protein (CBASS antagonist).
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