The Escherichia coli lytB gene, which is involved in penicillin tolerance and control of the stringent response, was identified as a previously described open reading frame designated orf316 located in the ileS-lsp operon (0.4 min on the linkage map).

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC193040PMC
http://dx.doi.org/10.1128/jb.175.4.1203-1205.1993DOI Listing

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