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A two-component signal-transduction cascade in Carnobacterium piscicola LV17B: two signaling peptides and one
M Kleerebezem1, O P Kuipers, W M de Vos
1Wageningen Centre for Food Sciences; NIZO food-research, Department of Flavour and Natural Ingredients, P. O. Box 20, 6710 BA Ede, The Netherlands.
Peptides
|October 6, 2001
Abstract:
In the lactic acid bacterium Carnobacterium piscicola LV17B a peptide-pheromone dependent quorum-sensing mode is involved in the regulation of bacteriocin production. Bacteriocin CB2 was identified as an environmental signal that induces bacteriocin production. Here, we demonstrate that a second 24 amino acid peptide (CS) also induces bacteriocin production. Transcription activation of several carnobacteriocin operons is triggered by CB2 or CS via a two-component signal transduction system composed of CbnK and CbnR.