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. 2000 Mar 1;19(5):1098–1107. doi: 10.1093/emboj/19.5.1098

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Fig. 2. Northern blot analysis identifying tmRNAs of E.coli and N.gonorrhoeae. The probe was synthesized using ssrAEc as template. Strains examined were: K37, wild-type for ssrAEc (lane 1), K8619, isogenic with K37 except that it has the ssrAEc::cat allele (lane 3), and variants of K8619 carrying pGCtm (lane 2) or derivatives of pGCtm with ssrANg mutant alleles (lanes 4–6).