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Identification and Characterization of the Cognate Anti-Sigma Factor and Specific Promoter Elements of a T. tengcongensis ECF Sigma Factor

Figure 1

The interaction between T. tengcongensis ECF σ factor Tt-RpoE1 and its putative anti-σ factor Tt-TolB.

(A). Organization of the genes encoding Tt-RpoE1, Tt-TolB and two other proteins (Permease and PtsB). The vertical black line in Tt-TolB indicates the predicted membrane-spanning domain. Partial sequence including the stop codon of Tt-rpoE1 and the start codon of Tt-tolB is shown. (B). Y2H analysis of the interaction between Tt-RpoE1 and Tt-TolB and between Tt-RpoE1 and the other two proteins. (C). The interaction between Tt-RpoE1 and the N-terminal or the C-terminal region of Tt-TolB.

Figure 1

doi: https://doi.org/10.1371/journal.pone.0040885.g001