3'UTR has been truncated to remove 8 out of 10 of the putative Sxl binding sites.
Males are killed by a single copy of the P{Hsp83-Sxl.NΔ} transgene. Male killing activity is greater than for the parental allele, SxlN.Hsp83, and does not depend on a functional Sxl product.
SxlNΔ.Hsp83 has phenotype, suppressible by msl-2Hsp83.PK
SxlNΔ.Hsp83/SxlfP7B0 males rescued to viability by msl-2Hsp83.PK are morphologically normal and fertile.
SxlNΔ.Hsp83 partially rescues Sxlf2593
SxlNΔ.Hsp83 partially rescues Sxlf7,M1
SxlNΔ.Hsp83 fails to rescue SxlM1,f3
Rescue of Sxlf2593 by SxlFL.Hsp83 is more effective than that by SxlFLΔ.Hsp83 or SxlNΔ.Hsp83.