Abstract:
:The CCG rich sequence immediately 3' to the CAG repeat that is expanded in Huntington's disease (HD) has recently been shown to be polymorphic with at least 4 alleles differing by multiples of 3 bp being found in the normal population. We have studied the allele distribution in 180 HD families resident in Scotland and have found very strong evidence for disequilibrium in this population. For the 131 families where phase was unambiguously determined, 130 were shown to have a CCG repeat allele of 176 bp cosegregating with the HD chromosome. This observation is significantly different to the normal population distribution where 31% of people have an allele of 185 bp. The evidence for and against a possible founder effect in the Scottish HD population is discussed. We propose the hypothesis that we may have identified a region of the IT15 gene that is critical in Huntington's disease.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Barron LH,Rae A,Holloway S,Brock DJ,Warner JPdoi
10.1093/hmg/3.1.173subject
Has Abstractpub_date
1994-01-01 00:00:00pages
173-5issue
1eissn
0964-6906issn
1460-2083journal_volume
3pub_type
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