Figure 7.

Peptidoglycan (PGN) binding and competition assay. (A) ELISA analysis of binding profile between seroin 2/2-N/2-C and PGN. The negative control is unimmunized serum, and empty wells were used as blanks. Samples with P (sample)/N (negative) > 2.1 were considered positive. Student’s t-test was used to evaluate statistical significance. (B) The bacteriostatic activity of seroin 2/2-N/2-C against S. aureus. Seroin 2, seroin 2-N, and seroin 2-C were incubated with or without peptidoglycan and then with S. aureus. Error bars indicate the standard error of the mean (n = 3).