Fig. 3. The YPWM and the 20-61 regions are quantitatively required for Ubx limb
repression function. (A) The limb repression values of Ubx deletion mutants
when expressed at the level of endogenous Ubx. (B) The limb repression
activity of wild-type Ubx, Ubx
20-61 and Ubx
YPWM deletion mutants
as a function of protein concentration. The Ubx
YPWM protein exhibits a
flatter concentration-dependence curve of repression activity than wild-type
Ubx.