title: DNA breakage by Escherichia coli DNA gyrase in vitro and in vivo.
mesh_terms: D001483:Base Sequence; D002872:Chromosome Deletion; D004250:DNA Topoisomerases, Type II / Q000378:metabolism*; D004269:DNA, Bacterial / Q000378:metabolism*; D004587:Electrophoresis, Agar Gel; D004926:Escherichia coli / Q000201:enzymology*; D009154:Mutation
chemical_list: D004269:DNA, Bacterial; D004250:DNA Topoisomerases, Type II