Fig. 1
From: ComCED signal loop precisely regulates nlmC expression in Streptococcus mutans
Schematic diagram of comC and nlmC genomic region. Gray box: comC, nlmC and erm encoding region showed the directions of transcription with arrows. Black box with star: reported ComE binding site (van der Ploeg 2005; Kreth et al. 2007; Hung 2009; Hung et al. 2011a, b). Long black box: comC deletion region replaced by erm in ΔcomC. Long blank box with arrows: promoter PnlmC of nlmC and its upstream fragment PnlmC314 and PnlmC419