Antimicrobial Agents and Chemotherapy 2008-May
A peptide with a ProGln C terminus in the human saliva peptidome exerts bactericidal activity against Propionibacterium acnes.
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Nine proline-rich peptides ending with a proline-glutamine C terminus in a salivary peptidome were sequenced by matrix-assisted laser desorption ionization time of flight time of flight tandem mass spectrometry. A GPPPQGGRPQ peptide binds gram-positive Propionibacterium acnes and considerably inhibits bacterial growth. The peptide exhibiting innate immunity may be applied for treatment of various P. acnes-associated human diseases.