title: Recent studies of DNA topoisomerases.
mesh_terms: D000818:Animals; D004261:DNA Replication; D004264:DNA Topoisomerases, Type I / Q000235:genetics / Q000378:metabolism*; D004250:DNA Topoisomerases, Type II / Q000235:genetics / Q000378:metabolism*; D004278:DNA, Superhelical / Q000378:metabolism; D005796:Genes
chemical_list: D004278:DNA, Superhelical; D004264:DNA Topoisomerases, Type I; D004250:DNA Topoisomerases, Type II