2Lt - p1:bk1 | p1:bk2 - p2:bk1 | p2:bk2 - 2Rt
Combination with a single copy of Dp(2;2)Cam3c (which duplicates the region carrying the Gas41 gene) enhances the variegated pigmentation loss observed with P{lacW}50C.x6 due to repeat sensitive silencing.