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. 2015 Apr 10;59(5):2508–2514. doi: 10.1128/AAC.05180-14

TABLE 3.

Interactions of two L. sericata peptides against E. coli and M. luteus

Peptide combination sumFIC (n)a Interaction
E. coli
    PCecL5 + Stomox1 0.98 ± 0.25 (9) Additive
    Cec6 + PCecL4 0.82 ± 0.17 (11) Additive
    PCecL3 + Cec2 0.82 ± 0.22 (2) Additive
    PCecL5 + Cec6 0.85 ± 0.14 (2) Additive
    Cec2 + Stomox2 0.64 ± 0.04 (3) Additive
    Cec6 + Cec5 0.60 ± 0.17 (3) Additive
    PCecL4 + PCecL2 0.72 ± 0.10 (3) Additive
M. luteus
    PCecL4 + Cec3 1.00 ± 0.00 (3) Additive
    PCecL4 + Def4 0.85 ± 0.17 (4) Additive
    Stomox1 + Def6 1.00 ± 0.00 (3) Additive
    Cec6 + Def4 0.41 ± 0.13 (15) Synergistic
    Cec4 + Def3 0.60 ± 0.00 (3) Additive
a

Values are means ± standard deviations from several experiments. The number of experiments is given in parentheses. The sumFIC results are interpreted as follows: a sumFIC of ≤0.5 indicates synergy, a sumFIC of >0.5 and ≤1 indicates additive effects, and a sumFIC of <2 indicates antagonism.