Table S1, primers
Table S2, strains
Table S3, data collection and refinement statistics
Table S4, biolog conditions with a B. abortus ΔrpoE1 growth defect
Fig. S1, relative elution volumes of protein standards
Fig. S2, structural alignment, interaction map, cofactor-protein interactions, and chloride ion interaction site
Fig. S3, WrpA and EmoB structural models
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