FIG. 3.

Different domains of Bcd are required for activating transcription from hb and kni enhancers in yeast cells. Shown are relative activities of Bcd-VP16 fusion proteins on integrated hb-lacZ or kni-lacZ reporter genes in yeast cells. Only Bcd sequences are shown in schematic diagrams (not to scale), with the shaded region representing its homeodomain. The activities of Bcd(1-246)-VP16 were arbitrarily set to 100 on each reporter gene, with actual β-galactosidase activities of 576 and 91 on hb-lacZ and kni-lacZ, respectively.