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. 2002 Nov 25;99(25):16150–16155. doi: 10.1073/pnas.252641799

Fig 1.

Fig 1.

Schematic representation of the structure of Penelope copies integrated into the D. melanogaster genome. DNA constructs contain full-length Penelope clone p6 (A), full-length Penelope ORF under control of the D. melanogaster heat shock promoter (B), and Penelope ORF with a deletion of the 5′ region under the control of the D. melanogaster heat shock promoter (C). Arrows marked by 3′ and 5′ represent the positions of the P element inverted terminal repeats. The arrow marked with P shows the position of the Hsp70Bb, D. melanogaster heat shock promoter. Letters above the constructs mark the positions of the restriction sites X, H, E, S, and K representing XhoI, HindIII, EcoRI, SalI, and KpnI, respectively.