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Analysis of the 5′ end of agrB, agrC, and agrA transcripts using total RNAs isolated from EGD-e cells collected during the exponential growth phase (OD600 of 0.4). #, 5′ end identified by primer extension; *, processing sites identified by 5′-RACE. The putative −10 with TGn extension and −35 sequences are double underlined, the ribosome binding sites are underlined, the start codons are boxed, and the stop codon of agrC is represented by three asterisks.
