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Upstream regions of the cel cluster in L. lactis strains. The −35 and −10 elements are indicated in boxes, and the transcriptional start site is indicated as +1. Putative cre sites are underlined. Stars indicate single nucleotide deviations from the MG1363 sequence at the cre and −10 sites. MG5267 Cel+ is a spontaneous cellobiose-utilizing isolate of MG5267.
