Site-specific recombination by the DDE family member mobile element IS30 transposase

János Kiss, Mónika Szabó, Ferenc Olasz

Research output: Contribution to journalArticle

10 Citations (Scopus)


DNA rearrangements carried out by site-specific recombinases and transposases (Tpases) show striking similarities despite the wide spectrum of the catalytic mechanisms involved in the reactions. Here, we show that the bacterial insertion sequence (IS)30 element can act similarly to site-specific systems. We have developed an inversion system using IS30 Tpase and a viable λ phage, where the integration/excision system is replaced with IS30. Both models have been proved to operate analogously to their natural counterpart, confirming that a DDE family Tpase is able to fulfill the functions of site-specific recombinases. This work demonstrates that distinction between transposition and site-specific recombination becomes blurred, because both functions can be fulfilled by the same enzyme, and both types of rearrangements can be achieved by the same catalytic mechanisms.

Original languageEnglish
Pages (from-to)15000-15005
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number25
Publication statusPublished - Dec 9 2003

ASJC Scopus subject areas

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