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Alignment of the deduced amino acid sequences of the PvPM5s of wild isolates and Sal I strain. A single amino acid substitution at 276 (Val to Ile) was found in the 20 Korean isolates. Both imported isolates showed two additional substitutions at amino acid 243 (Gly to Ala) and at 347 (Val to Ala) along with a substitution at amino acid 276 (Val to Ile). The two active-site aspartic acid residues are marked with asterisks.
