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Promoter activities of the blaZ reporter in Newman and ΔsbcDC mutant CYL6621 containing Pagr-3::blaZ fusion plasmid pTL3564 (A), Parl::blaZ fusion plasmid pTL3562 (B), or Pmgr::blaZ fusion plasmid pTL3580 (C). The BlaZ activities are expressed as the ratio of A482 of the enzymatic reaction to the OD660 of the culture. The error bars indicate standard deviations of at least three independent experiments.
