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Trinucleotide Repeat Expansion MeSH Descriptor Data 2022


MeSH Heading
Trinucleotide Repeat Expansion
Tree Number(s)
G02.111.570.080.708.800.140.865
G02.111.570.080.708.800.500.850.200
G05.360.080.708.800.074.865
G05.360.080.708.800.500.850.200
G05.360.340.024.189.220.865
G05.360.340.024.850.500.850.200
G05.365.590.220.865
G05.558.220.865
Unique ID
D019680
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D019680
Scope Note
An increased number of contiguous trinucleotide repeats in the DNA sequence from one generation to the next. The presence of these regions is associated with diseases such as FRAGILE X SYNDROME and MYOTONIC DYSTROPHY. Some CHROMOSOME FRAGILE SITES are composed of sequences where trinucleotide repeat expansion occurs.
Entry Term(s)
Expanded Trinucleotide Repeat
Previous Indexing
Repetitive Sequences, Nucleic Acid (1981-1997)
See Also
Anticipation, Genetic
Chromosome Fragile Sites
Chromosome Fragility
Fragile X Syndrome
Myotonic Dystrophy
Public MeSH Note
99; see DNA SEQUENCE, UNSTABLE 1998
History Note
99(98)
Date Established
1998/01/01
Date of Entry
1997/06/20
Revision Date
2016/06/17
Trinucleotide Repeat Expansion Preferred
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