Figure 1From: A Method for Structure–Activity Analysis of Quorum-Sensing Signaling Peptides from Naturally Transformable Streptococci A schematic diagram describing the quorum-sensing system and its controlled cooperative activities in Streptococcus mutans. The signaling peptide or CSP induces quorum-sensing cascade when reaching to a critical concentration. This in turn activates the production of numerous bacteriocins and genetic competence, resulting in killing of other species, DNA release, and gene exchange.Back to article page