Like most bacteria, Vibrio cholerae lives under constant attack from viruses. To survive, bacteria equip themselves with antiviral immune systems. Previous work has shown that V. cholerae carries a large genetic element called a sedentary chromosomal integron (SCI). This structure contains hundreds of small mobile DNA units known as "gene cassettes" arranged in a long array, like a chain of pearls.

Like most bacteria, Vibrio cholerae lives under constant attack from viruses. To survive, bacteria equip themselves with antiviral immune systems. Previous work has shown that V. cholerae carries a large genetic element called a sedentary chromosomal integron (SCI). This structure contains hundreds of small mobile DNA units known as “gene cassettes” arranged in a long array, like a chain of pearls.

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