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. 2021 Feb 4;12:604079. doi: 10.3389/fmicb.2021.604079

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Copyright © 2021 Jing, Liu, Wu, Li and Liu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Relative mRNA levels of the CpxRA-regulated genes (cpxP and degP) were measured by real-time PCR. (A) Relative mRNA levels of the were measured in the WT S. Typhimurium JS strain and its isogenic JSΔcpxA, JSΔcpxRA, JSΔcpxAcpxR₅₁, JSΔcpxAcpxR₁₉₉, JSΔcpxAΔacka-pta, and JSΔacka-pta. (B) Relative mRNA levels of the were measured in the WT S. Typhimurium JS strain and its isogenic JScpxA₃₈, JScpxA₉₂_–₁₀₄, JScpxA₃₈ΔcpxR::kan, JSΔcpxA₉₂_–₁₀₄ΔcpxR::kan. The expression level of each mRNA in strain JS represents one-fold. Data were normalized to rpoD expression levels. Bars represent means ± standard deviations. **, P < 0.01.