Table 3.
Physicochemical properties of anti-MRSA peptides from SPR-20. The peptide sequences were obtained from de novo sequencing by LC-MS/MS. The predicted mass, pI, net charge, and hydrophobicity were calculated.
| Sample | Sequence (N→C) |
Length (Residues) | Mass (Da) | pI | Net Charge at pH 7.4 | Hydrophobicity (H) |
|---|---|---|---|---|---|---|
| P1 | VVVNVLVKVLPPPVV | 15 | 1570.02 | 8.62 | +1 | 0.915 |
| P2 | VVMNLLVKVLKYVV | 14 | 1616.01 | 9.51 | +2 | 0.859 |
| P3 | VVLNLLVKVLKYGK | 14 | 1585.03 | 9.93 | +3 | 0.648 |
| P4 | VVVNLLVKVLKYAK | 14 | 1585.03 | 9.93 | +3 | 0.636 |
| P5 | VVLNLVVKLLKYAK | 14 | 1599.05 | 9.93 | +3 | 0.670 |