Dorman, C J DNA supercoiling and the anaerobic and growth phase regulation of tonB gene expression. [electronic resource] - Journal of bacteriology Jun 1988 - 2816-26 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0021-9193 Standard No.: 10.1128/jb.170.6.2816-2826.1988 doi Subjects--Topical Terms: AnaerobiosisBacterial Proteins--geneticsDNA, Superhelical--analysisEscherichia coli--geneticsGene Expression Regulation--drug effectsNovobiocin--pharmacologyOxygen--pharmacologyPlasmidsPromoter Regions, GeneticSalmonella typhimurium--genetics