UAS drives expression of Tsf2 containing a Y533F substitution in the C-terminal lobe. This mutation abolishes the iron binding capacity of the protein.
Tsf2Y533F.UAS/Scer\GAL4btl.PS fails to rescue Tsf2ex234
Scer\GAL4btl.PS-mediated expression of Tsf2Y533F.Scer\UAS does not rescue the tracheal over-elongation phenotype of Tsf2ex234 embryos.