EMSAs with EBP-DBDs and DNA fragments containing putative EBP operon promoters. The assays were performed with fragments of the nla6 (A), actB (B), nla28 (C), and MXAN4899 (D) promoter regions and the following EBP-DBDs: none (lane 1), Nla4-DBD (lane 2), Nla6-DBD (lane 3), Nla18-DBD (lane 4), Nla28-DBD (lane 5), and ActB-DBD (lane 6). In lanes denoted with a superscripted 2 (B, lane 6 and C, lane 5), the P2 fragment of the indicated promoter is shown (Figs. 6 and 7).