UAS regulatory sequences drive expression of a mutated lncRNA:roX2 exon-3 that contains helix-destabilization point mutations.
lncRNA:roX2A1B4.UAS/Scer\GAL4Tub.PU fails to rescue Df(1)roX2Δ
The lethality of roX1SMC17A;Df(1)roX2Δ double mutant hemizygous males is not rescued by expression of roX2A1B4.Scer\UAS under the expression of Scer\GAL4tub.PU.