Structured Summary
Abstract
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.
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Classification
Broader headings
Related Concepts
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MeSH Record
Synonyms
5 entry terms
- DNA, Supercoiled
- DNA, Superhelical
- DNA, Supertwisted
- Supercoiled DNA
- Supertwisted DNA
MeSH Record
Aspects Covered
29 allowable subheadings
Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, antagonists & inhibitors, biosynthesis, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, drug effects, economics, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, ultrastructure, urine.
MeSH Record
Indexing Annotation
IM; /drug eff /ultrastruct permitted
MeSH Record
History Note
78
MeSH Record
Previous Indexing
- DNA (1966-1977)
- DNA, Circular (1973-1977)
MeSH Hierarchy
Tree Numbers
AMA Style
References
- National Library of Medicine. Superhelical DNA. Medical Subject Headings (MeSH). 2026. Unique ID D004278. http://id.nlm.nih.gov/mesh/2026/D004278
- Superhelical DNA. In: Wikipedia. https://en.wikipedia.org/wiki/DNA_supercoil
- Superhelical DNA. In: Wikidata. https://www.wikidata.org/wiki/Q412639