Population and Family Studies of the CAG Repeats in the IT-15Gene

Population and Family Studies of the CAG Repeats in the IT-15Gene A simple and effective method for typing of CAG repeats in the IT-15gene has been suggested. This method was applied for examination of the CAG allele distribution in Huntington's disease (HD) patients in five different populations from the Commonwealth of Independent States. A total of 21 normal alleles with the sizes ranging from 9 to 32 triplet repeats units were revealed. Moreover, alleles with the sizes ranging from 16 to 20 repeats predominated constituting from 54.4 to 74.6% of all alleles in different populations. The number of repeats in one allele in HD patients exceeded 38 units (43 triplets on average). In two families an increase in the CAG repeat units number in the mutant allele upon its paternal transmission was recorded. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Population and Family Studies of the CAG Repeats in the IT-15Gene

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Publisher
Springer Journals
Copyright
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1023/A:1009069412849
Publisher site
See Article on Publisher Site

Abstract

A simple and effective method for typing of CAG repeats in the IT-15gene has been suggested. This method was applied for examination of the CAG allele distribution in Huntington's disease (HD) patients in five different populations from the Commonwealth of Independent States. A total of 21 normal alleles with the sizes ranging from 9 to 32 triplet repeats units were revealed. Moreover, alleles with the sizes ranging from 16 to 20 repeats predominated constituting from 54.4 to 74.6% of all alleles in different populations. The number of repeats in one allele in HD patients exceeded 38 units (43 triplets on average). In two families an increase in the CAG repeat units number in the mutant allele upon its paternal transmission was recorded.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Oct 12, 2004

References

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