The P{XP}Hel89Bd00861 insertion contains divergent promoters that overexpress Hel89B and mor in the presence of a Scer\GAL4 driver.
Expression of P{XP}Hel89Bd00861 under the control of Scer\GAL4GMR.PF has no effect on the level of the eye pigmentation in Dp(?;2)bwD/bw[+] animals.