title: Appendix. I: An introduction to DNA supercoiling and DNA topoisomerase-catalyzed linking number changes of supercoiled DNA.
authors.affiliation: Department of Biochemistry and Molecular Biology, Harvard University, Cambridge, Massachusetts 02138, USA.
authors.forename: J C
authors.initials: JC
authors.lastname: Wang
mesh_terms: D004264:DNA Topoisomerases, Type I / Q000737:chemistry*; D004250:DNA Topoisomerases, Type II / Q000737:chemistry*; D004278:DNA, Superhelical / Q000737:chemistry*; D013816:Thermodynamics
chemical_list: D004278:DNA, Superhelical; D004264:DNA Topoisomerases, Type I; D004250:DNA Topoisomerases, Type II