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. Author manuscript; available in PMC: 2014 Apr 10.
Published in final edited form as: Mol Oral Microbiol. 2013 Oct 30;29(1):11–23. doi: 10.1111/mom.12041

Figure 2.

Figure 2

The cnm genomic locus in Streptococcus mutans contains two additional putative surface proteins. (A) In all cnm+ strains of S. mutans, cnm is located within a unique 5-kbp region between the core genes SMU_2067 and SMU_2069. SMU_2067 encodes a putative glycosyltransferase whereas SMU_2069 encodes the integral membrane zinc transporter ZupT. Two additional open reading frames (cnaB and cbpA) were identified upstream of cnm. Semi-quantitative RT-PCR analysis showed the co-transcription of cnaB with cbpA, whereas cnm was not part of this transcript. Presence of putative Rho-independent transcriptional terminator is indicated with a lollypop symbol. (B) Predicted domains of CnaB, CbpA and Cnm: SS, secretion signal; A, collagen-binding domain; B, threonine-rich repeats; LPXTG, cell-wall anchor motif.