Figure 4.

(A) Activation of the c-maf gene by transcription factors. The luciferase gene having 1.3 kb of the 5′-flanking region of the c-maf gene (1 µg) was co-transfected with various expression plasmids (1 µg), as indicated, into C3H10T1/2 cells. (B) Activation of 5′-deletion constructs of the c-maf gene by Pax6 and c-Maf. An aliquot of 1 µg of each deletion construct was co-transfected with Pax6 expression plasmid (1 µg) or c-maf expression plasmid (0.5 µg).