topoisomer

topoisomer
topo·iso·mer (to″po-iґso-mər) a DNA molecule that differs from another only in linking number, the number of times one strand of the helix wraps around the other in a right-hand direction.

Medical dictionary. 2011.

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  • Topoisomer — Topoisomers or topological isomers are molecules with the same chemical formula and stereochemical bond connectivities but different topologies. Examples of molecules for which there exist topoisomers include DNA, which can form knots, and… …   Wikipedia

  • topoisomer — noun An isomer of a biological macromolecule that has a distinct topology See Also: topoisomerization …   Wiktionary

  • topoisomer — …   Useful english dictionary

  • DNA topology — is the focus of an interdiscipline between molecular biology and mathematics and as a term refers to DNA supercoiling, knotting and catenation. More simply put, DNA topology studies the shape and path of the DNA helix in three dimensional space.… …   Wikipedia

  • List of genetics-related topics — This is a list of terms related to genetics. NOTOC # * 3 end * 5 end A * Acentric chromosome * Achondroplasia * Active site * Adam s Curse * Adaptation * Adenine * Adenosine * Adenovirus * Adenosine diphosphate (ADP) * Ala * Alagille syndrome *… …   Wikipedia

  • List of genetic engineering topics — NOTOC # 3 end 5 end A Acentric chromosome Achondroplasia Active site Adam s Curse Adaptation Adenine Adenosine Adenosine diphosphate Adenovirus ADP Ala Alagille syndrome Albino Alcoholism Alkylating agent Allele Allele frequency Alleles… …   Wikipedia

  • History of knot theory — For thousands of years, knots have been used for basic purposes such as recording information, fastening and tying objects together. Over time people realized that different knots were better at different tasks, such as climbing or sailing. Knots …   Wikipedia

  • topoisomeric — adjective Of or pertaining to a topoisomer …   Wiktionary

  • topoisomerization — noun A variation (isomerization) in the topology of a biological macromolecule (especially a nucleic acid) See Also: topoisomer, topoisomerase …   Wiktionary

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