UAS sequences regulate expression of the wild-type Dronc sequence, tagged at the C-terminal end with GFP into which a Dronc-specific cleavage site (TETDG) has been inserted, followed by Tag:MYC. The GFP moiety does not fluoresce unless cleavage occurs at the TETDG site; cleavage induces a conformational rearrangement of the protein that results in green fluorescent emission. The construct allows the simultaneous assessment of Dronc protein abundance (Tag:MYC immunostaining) and activation status (GFP fluorescence).