Like FosB/ΔFosB-related proteins, JunD can bind at AP-1 and CRE enhancers in 6-OHDA-lesioned,l-DOPA-treated rats. To characterize possible binding partners to FosB/ΔFosB proteins in the l-DOPA-induced dynCRE3 complex, supershift assays were performed with JunD or JunB antisera. s1 and s2 are samples from the lesioned striata of two l-DOPA-treated rats. This experiment was repeated with samples from additional animals, and with the dynAP-1 probe, it obtained similar results.