Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2005-4-18
pubmed:abstractText
Spinocerebellar ataxia type 7 (SCA7) is an autosomal dominant cerebellar ataxia caused by CAG repeat expansion. We found expansion at SCA7 locus in only two out of 235 Indian families clinically diagnosed for ataxia. In one of the families, a de novo mutation was observed wherein a paternal allele in intermediate range of 31 CAG repeats expanded to 59 in the offspring leading to the disease. No expanded alleles were observed in the sperm of the transmitting parent by small pool PCR. This suggests that de novo expansion by a pre-zygotic event is unlikely and could be post-zygotic. SCA7 expanded alleles from the two families were present on different genetic backgrounds, indicating multiple origins of the mutation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
1434-5161
pubmed:author
pubmed:issnType
Print
pubmed:volume
50
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
155-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Post-zygotic de novo trinucleotide repeat expansion at spinocerebellar ataxia type 7 locus: evidence from an Indian family.
pubmed:affiliation
Functional Genomics Unit, Institute of Genomics and Integrative Biology, CSIR, Mall Road, Delhi 110-007, India.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't