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DNA, Circular

"DNA, Circular" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

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Any of the covalently closed DNA molecules found in bacteria, many viruses, mitochondria, plastids, and plasmids. Small, polydisperse circular DNA's have also been observed in a number of eukaryotic organisms and are suggested to have homology with chromosomal DNA and the capacity to be inserted into, and excised from, chromosomal DNA. It is a fragment of DNA formed by a process of looping out and deletion, containing a constant region of the mu heavy chain and the 3'-part of the mu switch region. Circular DNA is a normal product of rearrangement among gene segments encoding the variable regions of immunoglobulin light and heavy chains, as well as the T-cell receptor. (Riger et al., Glossary of Genetics, 5th ed & Segen, Dictionary of Modern Medicine, 1992)


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This graph shows the total number of publications written about "DNA, Circular" by people in UAMS Profiles by year, and whether "DNA, Circular" was a major or minor topic of these publications.
Bar chart showing 6 publications over 6 distinct years, with a maximum of 1 publications in 1990 and 2006 and 2012 and 2017 and 2021 and 2022
To see the data from this visualization as text, click here.