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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: FEMS Microbiol Lett. 2013 Jun 26;345(1):49–55. doi: 10.1111/1574-6968.12182

Fig. 2.

Fig. 2

Deletion of marB had no effect on stability of marA mRNA. The half-life of marA mRNA was compared in wild type (WT) and ΔmarB::kan strains using rifampin as detailed in Materials and Methods. Error bars show SEM. No difference was found: the marA half-life was 2.6 min for the wild type strain and 2.3 min for its ΔmarB::kan derivative. The correlation coefficient (R2) describes how well the data fit the linear equations shown and can range from 0 to 1, the latter being a perfect fit. A correlation coefficient greater than 0.8 is generally described as strong. The absolute numbers of marA transcripts per ng of total RNA before addition of rifampin (time zero) were 17000 for the wild type strain BW25113 (■), and 64500 for the ΔmarB::kan mutant (▲).