FIG. 6.
Comparison of IS257 elements from pSK41, pJE1, and pSK639. Element designations are given on the left, whereas sequence numbering is shown on the right. The pSK639 sequences are taken from GenBank entry U40259. Dots indicate identity to the top sequence, whereas dashes indicate the positions of indels. The terminal inverted repeats of IS257 are indicated by arrowed lines. The position of the proposed crossover sites in IS2575093B and IS2575094E can be localized to the regions between the brackets in these sequences.