Definition of the Bacillus subtilisPurR Operator Using ...
The expression of the pur operon, which encodes enzymes of the purine biosynthetic pathway in Bacillus subtilis , is subject to control by the purR gene product (PurR) and phosphoribosylpyrophosphate. This control is also exerted on the purA and purR genes. A consensus sequence for the binding of PurR, named the PurBox, has been suggested (M. Kilstrup, S. G. Jessing, S. B. Wichmand-Jørgensen ...