Abstract
A transposon is a DNA segment, which is able to change its relative position within the entire genome of a cell. The piggyBac (PB) transposon is a movable genetic element that efficiently transposes between vectors and chromosomes through a "cut-and-paste" mechanism. During transposition, the PB transposase recognizes transposon-specific inverted terminal repeats (ITRs) sequences located on both ends of the transposon vector and eight efficiently moves the contents from its original positions and efficiently integrates them into TTAA chromosomal sites. PB has drawn much attention because of its transposition efficiency, safety and stability. Due to its priorities, PB can be used as a new genetic vehicle, a new tool for oncogene screening and a new method for gene therapy. PB has created a new outlook for human gene encoding.
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