For each clone, double fingerprints are shown. Lanes 1, 6, and 13, 1 kb DNA ladder; lanes 2 and 3, clone A; lanes 4, 5, clone B; lanes 7 and 8, clone C; lane 9 and 10, clone D; lane 11, negative control; lane 12, A. baumannii NCTC 12156 (ATCC 19606).