Gallidermin is an antibiotic peptide. Lantibiotics are well studied because of the commercial use of these bacteria in the food industry for making dairy products such as cheese. Gallidermin is a tetracyclic, 21-amino-acid, type A lantibi- otic peptide which is produced by the nonpathogenic Staphy- lococcus gallinarum Tu ?3928 and shows broad-spectrum activity against important gram-positive pathogens like S. au- reus, Staphylococcus epidermidis, Streptococcus pyogenes, Strep- tococcus pneumoniae, Streptococcus faecalis, and P. acnes .
