title: Melting experiment concerning the topological structure of closed circular double-stranded DNA.
mesh_terms: D000818:Animals; D003090:Coliphages; D004264:DNA Topoisomerases, Type I; D004270:DNA, Circular; D004279:DNA, Viral; D008099:Liver / Q000201:enzymology; D009690:Nucleic Acid Conformation; D009691:Nucleic Acid Denaturation; D010727:Phosphoric Diester Hydrolases; D051381:Rats
chemical_list: D004270:DNA, Circular; D004279:DNA, Viral; D010727:Phosphoric Diester Hydrolases; D004264:DNA Topoisomerases, Type I