General features and properties of insertion sequence elements

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The Y-transposases

Finally, tyrosine site-specific recombinases of the bacteriophage integrase (Int) type are often associated with conjugative transposons (Integrative Conjugative Elements or ICE) (IS related to ICE) and are considered to be Tpases. However at present there are no known IS which use this type of enzyme (Fig 1.7.1).