FIG. 1.

Sequence logo (38) of insertion sites of the mariner transposon in the C. jejuni NCTC 11168 chromosome. y axis, bits of information for each position (maximum of 2 bits for a nucleotide sequence); x axis, nucleotide position (positions 17 and 18 correspond to the target TA dinucleotide). The height of the column indicates the degree of conservation with relative sizes of letters denoting base frequency at that position. The program WebLogo (http://www.bio.cam.ac.uk/cgi-bin/seqlogo/logo.cgi) was used to generate the graphic.