DNA, A-Form

An isoform of DNA that occurs in an environment rich in SODIUM and POTASSIUM ions. It is a right-handed helix with 11 base pairs per turn, a pitch of 0.256 nm per base pair and a helical diameter of 2.3 nm.

Year introduced: 2004

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Tree Number(s): D13.444.308.130, G02.111.570.820.486.128, G05.360.580.114

MeSH Unique ID: D044704

Entry Terms:

• A-Form DNA
• DNA, A Form
• A-DNA

Previous Indexing:

• DNA (1985-2003)

See Also:

• Nucleic Acid Conformation
• DNA, Z-Form
• DNA, C-Form

All MeSH Categories
Chemicals and Drugs Category
Nucleic Acids, Nucleotides, and Nucleosides
Nucleic Acids
DNA
DNA, A-Form

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Phenomena and Processes Category
Chemical Phenomena
Biochemical Phenomena
Molecular Structure
Molecular Conformation
Nucleic Acid Conformation
DNA, A-Form

All MeSH Categories
Phenomena and Processes Category
Genetic Phenomena
Genetic Structures
Nucleic Acid Conformation
DNA, A-Form