1. Studies on the properties of P1 site-specific recombination: evidence for topologically unlinked products following recombination;Abremski;Cell,1983
2. DNA breakage and closure by rat liver type I topoisomerase: separation of the half-reactions by using a singlestranded DNA substrate;Been,1981
3. Evidence for an intermediate with a single-strand break in the reaction catalyzed by the DNA untwisting enzyme;Champoux,1976
4. Strand breakage by the DNA untwisting enzyme results in covalent attachment of the enzyme to DNA;Champoux,1977
5. Renaturation of complementary single-stranded DNA circles: complete rewinding facilitated by the DNA untwisting enzyme;Champoux,1977