This family consists of the alpha and beta enterocins and lactococcin G peptides. These peptides have some antimicrobial properties; they inhibit the growth of Enterococcus spp. and a few other gram-positive bacteria. These peptides act as pore- forming toxins that create cell membrane channels through a barrel-stave mechanism and thus produce an ionic imbalance in the cell. These family of antimicrobial peptides belong to the class II group of bacteriocin.