An Hsp70 promoter drives expression of a prd cDNA with a deletion that removes 125 of the 128 amino acids of the paired-box domain.
Heat shocked embryos show a range of cuticle phenotypes with variable substitution of naked cuticle by a reverse-polarity, mirror-symmetric pattern of denticles.
Carried in plasmid "pHS-PRDΔPB", expressed in Schneider line 3 cells and tested for activation of the Ecol\CAT reporter gene to characterise the domains of ftz and prd.
Carried in plasmid "PrdΔHD", expressed in Schneider 3 cells and transcriptional activity of Ecol\CAT reporter construct is assayed.
Carried in plasmid and assayed in Schneider cells for ability to activate transcription from p3K'-TATA-CAT and pPB3-CAT.