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Alignment of 10 ery gene cluster promoters. The predicted −10 and −35 regions are underlined. The predicted start sites are boldface and underlined. In five cases, more than one 5′ endpoint was identified in the S1 mapping, and all are underlined. The asterisks mark promoters determined by Bibb et al. (2). a, E. coli consensus for sigma-70 promoters; b, modified E. coli consensus determined for Streptomyces (32).
