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cesRK locus in L. monocytogenes LO28. (A) Genetic organization of the cesRK locus. Transcription start sites are indicated by arrows. Putative transcription terminators are indicated by lollipops. See text for a detailed description of the putative gene products. (B) The putative protein encoded by orf2420 contains a signal peptide sequence of 25 aa (underlined). The putative cleavage site is indicated by an arrow.
