title: Regulation of DNA supercoiling in Escherichia coli.
mesh_terms: D001483:Base Sequence; D002872:Chromosome Deletion; D002876:Chromosomes, Bacterial; D004250:DNA Topoisomerases, Type II / Q000235:genetics; D004278:DNA, Superhelical / Q000235:genetics*; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics*; D005796:Genes; D005798:Genes, Bacterial; D009154:Mutation
chemical_list: D004278:DNA, Superhelical; D004250:DNA Topoisomerases, Type II