Fig. 4

Strategy for pag cloning and sequencing. The locations of primers (this study) used for PA sequencing are shown with arrows on the full pag gene (4235 bp) of B. anthracis. Arrow color: Green indicates PA-F (1900–1918 bp); Red indicates PA-F1 (2289–2306 bp); Blue indicates PA-F2 (2826–2846 bp), and Purple indicates PA-R (4058–4076 bp)