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Comparison of the regulation and expression of core sRNAs in nonpathogenic E. coli and EHEC. (A) The GlmY/GlmZ regulon in nonpathogenic E. coli versus EHEC. (B) The EHEC-specific sRNA AgvB regulates expression of the core sRNA GcvB. Black lines indicate regulation that is conserved between nonpathogenic E. coli and EHEC, whereas red lines indicate regulation unique to EHEC. Arrows indicate positive regulation, and blunted lines indicate negative regulation.
