<jats:title>ABSTRACT</jats:title> <jats:p> <jats:italic>Lactobacillus salivarius</jats:italic> DPC6005, a porcine intestinal isolate, produces a two-component bacteriocin, salivaricin P, with homology to ABP-118 produced by a human probiotic <jats:italic>L. salivarius</jats:italic> strain. Indeed, molecular characterization revealed that while the peptides Sln1 and ABP-118α are identical, their companion peptides (Sln2 and ABP-118β, respectively) differ by two amino acids. This observation suggests that two-component bacteriocins may be a common feature of intestinal <jats:italic>L. salivarius</jats:italic> strains.