FIG. 4.

Analysis of deletion Δdca1 of ADP7529. The sequence of the relevant region of dcaE is shown aligned above that of the pcaU-pcaI intergenic region, followed by that of the deletion strain. Nucleotide numbers refer to the current listing for accession no. LO5770 in the GenBank database. The repeated element present in all three sequences is underlined. Overlining designates hypothetical parent sequences that may have contributed to the deletion juncture; they were arbitrarily chosen to clarify the subtle changes at the juncture.