Transposition without transposase: A spontaneous mutation in bacteria

Chad A. Rappleye, John R. Roth

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Transposition mutations are typically associated with the activities of transposable elements such as transposons and insertion sequences, whose mobility is dependent upon transposase enzymes that catalyze exchanges between element ends and target sites. We describe a single transposition event in which a block of donor sequence is inserted at a target site without the involvement of any known transposase or the ends of any known transposable element. We propose that this is a new type of spontaneous mutation which may be difficult to detect in standard mutant hunts but may be of evolutionary importance.

Original languageEnglish (US)
Pages (from-to)2047-2052
Number of pages6
JournalJournal of Bacteriology
Issue number6
StatePublished - 1997
Externally publishedYes

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology
  • Immunology


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