JP-3 gene polymorphism in a healthy population of Serbia and Montenegro
2005
Keckarević, M. | Savić, D. | Romac, S.
Expansions of CTG repeats inJP-3 gene are associated with a phenotype similar to Huntington disease. These expansions are the cause of Huntington disease like-2 (HDL-2) phenotype. CTG repeats inJP-3 gene are polymorphic in healthy population. Analyses of CTG repeat polymorphism ofJP-3 gene in various healthy populations could help in estimating the population at risk for developing HDL-2. CTG repeat polymorphism ofJP-3 gene was analysed in healthy population of Serbia and Montenegro. Study included 198 unrelated subjects. Analyses ofJP-3 locus were performed using PCR and sequencing. Six differentJP-3 alleles were obtained and they were in the range of 11 to 18 CTG repeats showing a bimodal distribution, with peaks at 14 and 16. Results show that the distribution ofJP-3 alleles in population of Serbia and Montenegro is consistent with distributions in other analysed populations. The absence of alleles with more then 18 CTG repeats suggests that HDL-2 is very rare in the populations of Serbia and Montenegro.
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