You can perform EMSA experiment in order verify the bindding of your regulator of interest on a specific region and also transcriptional fusion to highlight the influence of your protein on the expression the locus close by.
I agree with Kevin. EMSA and DAPA can confirm protein-DNA binding. As a follow up, you can meddle around the loci (CRISPR or shRNA) to verify if the particular phenotype is perturbed.