Figure 6.
Binding of recombinant MSL2 to different DNA fragments in vitro. Electrophoretic mobility shift assay. Increasing concentrations of MSL2 were incubated with radiolabeled dsDNA of (A) the high-affinity DBF12-L15 element and the mutated version DBF12-L18 or (C) the DBF12-L15 trimer and a random fragment of similar length derived from the multiple cloning site of a vector (mcs). Protein–DNA complexes were separated from unbound DNA in non-denaturing agarose gels. (B) and (D) Binding curves obtained from quantification of (A) and (C) and fitting to a standard bimolecular model.