title: HeLa toposiomerase I.
mesh_terms: D002467:Cell Nucleus / Q000201:enzymology*; D002846:Chromatography, Affinity; D004264:DNA Topoisomerases, Type I / Q000302:isolation & purification* / Q000378:metabolism; D006367:HeLa Cells / Q000201:enzymology; D006801:Humans; D007700:Kinetics; D008970:Molecular Weight; D013379:Substrate Specificity
chemical_list: D004264:DNA Topoisomerases, Type I