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Partial alignment between Sat amino acid predicted sequences of prototype UPEC CFT073 (accession number AAG30168.1) and EC071. The catalytic triad (highlighted in yellow) composed by His, Asp and Ser (residues 121, 149 and 256, respectively) are conserved in both sequences as well as the characteristic serine protease motif GDSGS of the SPATEs family, harboring the catalytic serine (red box).
