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Applied and Environmental Microbiology, June 2007, p. 3719-3723, Vol. 73, No. 11
0099-2240/07/$08.00+0     doi:10.1128/AEM.00666-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Salivaricin P, One of a Family of Two-Component Antilisterial Bacteriocins Produced by Intestinal Isolates of Lactobacillus salivarius{triangledown}

Eoin Barrett,1,2 Maria Hayes,1,3 Paula O'Connor,1 Gillian Gardiner,1,2 Gerald F. Fitzgerald,2,3 Catherine Stanton,1,2 R. Paul Ross,1,2* and Colin Hill2,3

Teagasc Biotechnology Centre, Moorepark Food Research Centre, Fermoy, County Cork, Ireland,1 Alimentary Pharmabiotic Centre, Biosciences Institute,2 Department of Microbiology, University College Cork, County Cork, Ireland3

Received 23 March 2006/ Accepted 24 March 2007

Lactobacillus salivarius DPC6005, a porcine intestinal isolate, produces a two-component bacteriocin, salivaricin P, with homology to ABP-118 produced by a human probiotic L. salivarius strain. Indeed, molecular characterization revealed that while the peptides Sln1 and ABP-118{alpha} are identical, their companion peptides (Sln2 and ABP-118ß, respectively) differ by two amino acids. This observation suggests that two-component bacteriocins may be a common feature of intestinal L. salivarius strains.

* Corresponding author. Mailing address: Teagasc Biotechnology Centre, Moorepark Food Research Centre, Fermoy, Co. Cork, Ireland. Phone: 353 25 42229. Fax: 353 25 42340. E-mail: paul.ross{at}teagasc.ie

{triangledown} Published ahead of print on 6 April 2007.

Applied and Environmental Microbiology, June 2007, p. 3719-3723, Vol. 73, No. 11
0099-2240/07/$08.00+0     doi:10.1128/AEM.00666-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.





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