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Sequence alignment between PcrV (P. aeruginosa) and LcrV (Y. pseudotuberculosis), and PcrG and LcrG. Identical residues are highlighted, and the predicted coiled coil region in PcrV is identified with a green bar. The blue bar represents the major antigenic region of LcrV identified in active and passive immunization studies [12]. The arrow points to the end of the PcrG (1–74) construct.
