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Nucleic Acids, Nucleotides, and Nucleosides > Nucleic Acids > DNA > DNA, Circular > DNA, Superhelical
Genetic Phenomena > Genetic Structures > Nucleic Acid Conformation > DNA, Circular > DNA, Superhelical
... > Chemical Phenomena > Biochemical Phenomena > Molecular Structure > Molecular Conformation > Nucleic Acid Conformation > DNA, Circular > DNA, Superhelical

Preferred term

DNA, Superhelical  

Type

  • Topical Descriptor

Broader concept

Entry terms

  • DNA, Supercoiled
  • DNA, Supertwisted
  • Supercoiled DNA
  • Supertwisted DNA

Note

  • IM; /drug eff /ultrastruct permitted

Scope note

  • Circular duplex DNA isolated from viruses, bacteria and mitochondria in supercoiled or supertwisted form. This superhelical DNA is endowed with free energy. During transcription, the magnitude of RNA initiation is proportional to the DNA superhelicity.

History note

  • 78

In other languages

URI

http://www.yso.fi/onto/mesh/D004278

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