CDI/CDS system-encoding genes of Burkholderia thailandensis are located in a mobile genetic element that defines a new class of transposon
Fig 2
The bcpAIOB Locus is part of a composite transposon that forms an extrachromosomal megacircle.
(A) Schematic representation of binding sites for primers Circ1 and Circ2 in the chromosome, as well as the IS2-like megacircle. (B) Agarose gel electrophoresis analyses show detection of the megacircle junction in WT BtE264 by PCR. (C) Diagram of the IS2-like megacircle junction based on sequencing data. (D) Diagram of the putative IS2-like composite transposon. The predicted IS2 translocatable unit (TU) is shown below.