title: DNA supercoiling and its effects on DNA structure and function.
mesh_terms: D001483:Base Sequence; D004247:DNA; D004269:DNA, Bacterial / Q000235:genetics; D004278:DNA, Superhelical; D004926:Escherichia coli / Q000235:genetics; D008433:Mathematics; D009690:Nucleic Acid Conformation; D010957:Plasmids; D013329:Structure-Activity Relationship; D013816:Thermodynamics
chemical_list: D004269:DNA, Bacterial; D004278:DNA, Superhelical; D004247:DNA