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. Author manuscript; available in PMC: 2008 Jun 1.
Published in final edited form as: Microbiology (Reading). 2007 Jun;153(Pt 6):1799–1807. doi: 10.1099/mic.0.2007/005975-0

Fig. 1.

Fig. 1

Intergenic region IGS1499. (a) Nucleotide sequence of the intergenic region (IGS1499) between nlmC (Smu1738) and comC, including the ATG codon for each gene. The top strand is the coding strand for comC, and the bottom strand is the coding strand for nlmC. The putative extended –10 and –35 regions for nlmC are highlighted with boxes. The two direct repeats (DR I and DR II) and their directions are indicated by arrows. Brackets denote the regions that were deleted in the DR II and the DR I+II deletion mutants. (b) Putative ComE binding site in the promoter region of comED (S. mutans) and putative ComE and BlpR binding sites in the promoter regions of comCDE and blpS (S. pneumoniae) and their relative arrangement on the chromosome [modified after (Martin et al., 2006)]. The imperfect direct repeats are underlined in all three sequences and separated by a 10 bp spacer (11 bp in comCDE in S. pneumoniae). The light grey box indicates the location of the putative ComE or BlpR binding sites. Sm, S. mutans; Sp, S. pneumoniae.