Topoisomer 1225188 177488570 2007-12-12T19:20:31Z Iridescent 937705 Cleanup & [[WP:AWB/T|typo fixing]] using [[Project:AutoWikiBrowser|AWB]] '''Topoisomers''' or '''topological isomers''' are [[molecule]]s with the same [[chemical formula]] and stereochemical bond connectivities but different [[topology|topologies]]. Examples of molecules for which there exist topoisomers include [[DNA]], which can form [[knot theory|knot]]s, and [[catenane]]s. [[DNA topology|DNA topoisomers]] can be interchanged by [[enzyme]]s called [[topoisomerase]]s {{Ref|chang}}. == See also == * [[Mechanically-interlocked molecular architectures]] * [[Catenane]] * [[Rotaxanes]] * [[Molecular knot]] * [[Molecular Borromean rings]] == References == * {{Note|chang}} ''New Molecular Topologies Beyond Catenanes and Rotaxanes'' Essay '''2000''' Theresa Chang American Chemical Society [http://organicdivision.org/essays_2000/chang.pdf Online Article] [[Category:stereochemistry]] [[Category:Molecular topology]] [[Category:Supramolecular chemistry]]