Figure 2. Activities of Fgf10 promoter regions and inner ear enhancer in LPM cells in vitro.

(A) Luciferase reporter activities of indicated promoter constructs. Blue bars indicate various deletion versions of the proximal promoter of the Fgf10 gene. The red and gray bars represent 5’ UTR of Fgf10 and luciferase-polyA cassette, respectively.

(B) Comparison of activities of −0.34k promoter construct with and without previously-characterized inner ear enhancer.

Luciferase activities are shown as mean ± S.D.