Fig. 1.

Genome maps for PICIs. Genomes are aligned according to the prophage convention, with the integrase gene (int) at the left end. Genes are colored according to their sequence and function: int is yellow; transcription regulator (stl or rpr (GP), and alpA or merR (GN)) is dark blue; replication genes are purple; encapsidation genes are green, with the terminase small subunit gene (terS) in light green; superantigen and other virulence genes are pink; genes encoding putative phage resistance proteins are black; other accessory genes are red; genes encoding hypothetical proteins are white