Scer\GAL4da.PU-mediated expression of LTV1Scer\UAS.T:Ivir\HA1 rescues the developmental arrest and lethality of LTV1E1 mutants, and Scer\GAL4Cg.PA-mediated expression of LTV1Scer\UAS.T:Ivir\HA1 rescues the decreased cell size phenotype seen in LTV1E1 clones in the fat body.