DNA sequences around the prophage insertion sites in B. anthracis chromosome. The genomic positions in the strain Ames ancestor (Genbank accession number: AE017334) are indicated above the sequence. The sequences of the primers used in PCR of prophage excised chromosomal attB sites are underlined. The putative att sites, referred as left and right repeats, flanking the prophage genome (indicated by boxes with the phage genome size in bp), are highlighted. The left and right repeats of prophages lambda Ba01 and Ba03 are not perfect and the 2 mismatched bases are indicated in different color.