Fig. 1

MALDI-TOF mass spectra of purified Gassericin E (GasE). [M+H]⁺, monoisotopic peak of GasE. a.u., absorbance units. Inset panel: SDS-PAGE (A) and bioassay (B) of purified GasE. L. paracasei C1351 was used as the indicator strain. MWM, molecular weight marker