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. 2011 Sep 15;3(9):1146–1162. doi: 10.3390/toxins3091146

Figure 1.

Figure 1

Illustration of a mature STa toxin peptide and substitutions. Amino acid residues in the red-colored dashed box are of STa toxicity domain, and three disulfide bonds are indicated in blue-colored solid lines. Boxes in green-colored solid line indicated amino acid residues used in substitution.