6.6kb genomic KpnI/AvrII fragment, which contains the Tap42, Nnp-1 and CG6523 genes.
Tap42+t6.6 rescues Df(2L)Tap42Δ305b
The homozygous lethality of Df(2L)Tap42Δ305b animals is rescued by Tap42+t6.6.