FIG. 1.

(A) Relative positions of the different putative mobile elements within the KQ element. The Tn1331 backbone is designated by the hatched areas. The positions of insertion of Tn4401 and Tn5387 are indicated. The positions of different restriction sites are also indicated. (B) Representation of the different mobile elements comprising the KQ element. The names of the individual element are indicated at the left. The left and right vertical arrows represent the insertion sites for Tn4401 and Tn5387, respectively. IS elements are boxed, and the arrows reflect the direction of transcription of their transposase genes. The locations of PCR primers KPCoutREV (arrow A) and PCR543r (arrow B) are indicated.