Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1999-8-24
pubmed:abstractText
Spinocerebellar ataxia type 2 (SCA2) is caused by the expansion of an unstable CAG repeat encoding a polyglutamine tract. Repeats with 32 to 200 CAGs are associated with the disease, whereas normal chromosomes contain 13 to 33 repeats. We tested 220 families of different geographical origins for the SCA2 mutation. Thirty three were positive (15%). Twenty three families with at least two affected subjects were tested for linkage disequilibium (LD) between the SCA2 mutation and three microsatellite markers, two of which (D12S1332-D12S1333) closely flanked the mutation; the other (D12S1672) was intragenic. Many different haplotypes were observed, indicating the occurrence of several ancestral mutations. However, the same haplotype, not observed in controls, was detected in the German, the Serbian, and some of the French families, suggesting a founder effect or recurrent mutations on an at risk haplotype.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0022-2593
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
415-7
pubmed:dateRevised
2008-11-20
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Linkage disequilibrium at the SCA2 locus.
pubmed:affiliation
INSERM U289, Hôpital de la Salpêtrière, Paris, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't