gypsy element lacks 5 of the 12 su(Hw) binding sites, deletion also includes the 5' LTR and part of the transcribed untranslated region.
Homologous recombination between the hobo in yPR2 and a hobo in the ac-sc complex region has deleted the DNA between these two elements. The breakpoint in the y region is located at +806bp in the gypsy element in yPR2 (gypsy coordinates as in FBrf0045014).