Clusters found with your TF of interest:

Not all of these will be good Discoveries; and not all will be good matches to your motif of interest. Be sure to check out the e-values in each case (shown in the table below). It can also be the case that other motifs are better matches. This is just giving you a table of possibilities.
clusterTFSiteseDiscoveryeMatchdatabase
1515Nr2e3470.000000490.040375JASPAR
919Nr2e3170.000050.0024227JASPAR
2205Nr2e31920.0003945JASPAR