title: Multiple forms of rat liver type I topoisomerase.
mesh_terms: D000818:Animals; D004247:DNA; D004264:DNA Topoisomerases, Type I / Q000302:isolation & purification* / Q000378:metabolism; D007527:Isoenzymes / Q000302:isolation & purification* / Q000378:metabolism; D008099:Liver / Q000201:enzymology*; D008970:Molecular Weight; D009690:Nucleic Acid Conformation; D051381:Rats; D013379:Substrate Specificity
chemical_list: D007527:Isoenzymes; D004247:DNA; D004264:DNA Topoisomerases, Type I