UASt regulatory sequences drive expression of Tfb5 which is tagged at the C-terminal end with Tag:polyHis.
Co-expression of Tfb5Scer\UAS.C.T:Zzzz\His6 does not rescue the wing defects seen in flies carrying two copies of P{GD10407} expressed under the control of two copies of Scer\GAL4Bx-MS1096.