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. 2004 Jul;72(7):3838–3848. doi: 10.1128/IAI.72.7.3838-3848.2004

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Copyright © 2004, American Society for Microbiology

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FIG. 4. — Homology of the asp23 promoter regions of S. aureus and S. epidermidis. (A) Physical maps of the asp23 promoter regions of S. aureus N315 (accession no. AP003136) and S. epidermidis ATCC 12228 (accession no. AE016750) are displayed. Homologous genes are indicated by double-headed arrows. In S. epidermidis, no open reading frame homologous to the S. aureus SA1987 gene could be detected in the asp23 promoter region. SA1987 is a homologue to the S. aureus opuD gene. In S. epidermidis, only one opuD homologue (SE0259) could be detected in a distinct chromosomal region (accession no. AE016744). (B) Alignment of σ^B promoters within the asp23 promoter regions of S. aureus and S. epidermidis with the consensus sequence of σ^B-dependent promoters in B. subtilis (59). Bases fitting the consensus sequence are displayed in boldface type. The P1 and P3 promoters of both species represent perfect matches, whereas for the respective P2 promoters one identical mismatch with respect to the consensus sequence was observed.