Medical Subject Headings

Last uploaded: August 28, 2024
Preferred Name

DNA, Circular
Synonyms

DNAs, Circular

Circular DNA

Circular DNAs

Definitions

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)

ID

http://purl.bioontology.org/ontology/MESH/D004270

altLabel

DNAs, Circular

Circular DNA

Circular DNAs

AN

IM; /drug eff /ultrastruct permitted

AQL

AD AE AG AI AN BI BL CF CH CL CS DE EC GE HI IM IP ME PD PH PK PO RE SD ST TO TU UL UR

cui

C0012925

DC

1

definition

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)

DX

19740101

HN

74(73)

Inverse of AQ

http://purl.bioontology.org/ontology/MESH/Q000097

http://purl.bioontology.org/ontology/MESH/Q000096

http://purl.bioontology.org/ontology/MESH/Q000627

http://purl.bioontology.org/ontology/MESH/Q000648

http://purl.bioontology.org/ontology/MESH/Q000493

http://purl.bioontology.org/ontology/MESH/Q000494

http://purl.bioontology.org/ontology/MESH/Q000276

http://purl.bioontology.org/ontology/MESH/Q000138

http://purl.bioontology.org/ontology/MESH/Q000134

http://purl.bioontology.org/ontology/MESH/Q000266

http://purl.bioontology.org/ontology/MESH/Q000378

http://purl.bioontology.org/ontology/MESH/Q000008

http://purl.bioontology.org/ontology/MESH/Q000009

http://purl.bioontology.org/ontology/MESH/Q000032

http://purl.bioontology.org/ontology/MESH/Q000037

http://purl.bioontology.org/ontology/MESH/Q000191

http://purl.bioontology.org/ontology/MESH/Q000302

http://purl.bioontology.org/ontology/MESH/Q000145

http://purl.bioontology.org/ontology/MESH/Q000592

http://purl.bioontology.org/ontology/MESH/Q000737

http://purl.bioontology.org/ontology/MESH/Q000819

http://purl.bioontology.org/ontology/MESH/Q000502

http://purl.bioontology.org/ontology/MESH/Q000506

http://purl.bioontology.org/ontology/MESH/Q000187

http://purl.bioontology.org/ontology/MESH/Q000235

http://purl.bioontology.org/ontology/MESH/Q000633

http://purl.bioontology.org/ontology/MESH/Q000600

http://purl.bioontology.org/ontology/MESH/Q000652

http://purl.bioontology.org/ontology/MESH/Q000528

Inverse of RB

0

Machine permutation

74

MDA

19990101

MMR

20150622

MN

G02.111.570.820.486.212

D13.444.308.283

G05.360.580.156

notation

D004270

prefLabel

DNA, Circular

TERMUI

T012992

T532859

TH

NLM (2004)

NLM (1973)

tui

T123

T114

subClassOf

http://purl.bioontology.org/ontology/MESH/D004247

http://purl.bioontology.org/ontology/MESH/D009690

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