Comparison of Tn5397 from Clostridium difficile, Tn916 from Enterococcus faecalis and the CW459tet(M) element from Clostridium perfringens shows that they have similar conjugation regions but different insertion and excision modules The GenBank accession numbers for the sequences in this paper are AF333235 (Tn5397) and AF329848 [part of CW459tet(M)].

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