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. 2001 Oct 23;98(22):12602–12607. doi: 10.1073/pnas.221303998

Figure 1.

Figure 1

Structure of the P{Switch} enhancer detector elements. (A) P{Switch1}. The Gene-Switch cassette was inserted downstream of the P-transposase promoter and transcriptional start site. The translational start site is within the Gene-Switch cassette. The positions of the LoxP sites are shown below the transposon and are marked by arrows. The 5′ and 3′ P-element inverted repeats are illustrated as triangles. (B) P{Switch2}. The Gene-Switch cassette was cloned in frame at an EcoRI site within the P-transposase gene.