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DNA and amino acid sequences of the wild-type (A) and the SAT− mutant (B) Kresse strains (based on the U44978.1 sequence). The 2842nd and 2845th nucleotides were changed (T → A and T → C). These modifications did not change the amino acid sequence of VP1; however, they led to a stop codon in the SAT ORF and to the substitution of the nearest methionine.
