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Analysis of unstable DNA sequence in FMR1 gene in Polish families with fragile X syndrom

100%

Milewski M., Zygulska M., Bal J., Deelen W. H., Obersztyn E., Bocian E., Halley D. J. J., Horst J., Mazurczak T.

Acta Biochimica Polonica

1996

tom 43

nr 2

The unstable DNA sequence in the FMR1 gene was analyzed in 85 individuals from Polish families with fragile X syndrome in order to characterize mutations responsible for the disease in Poland. In all affected individuals classified on the basis of clinical features and expression of the fragile site at X(q27.3) a large expansion of the unstable sequence (full mutation) was detected. About 5% (2 of 43) of individuals with full mutation did not express the fragile site. Among normal alleles, ranging in size from 20 to 41 CGG repeats, allele with 29 repeats was the most frequent (37%). Transmission of premutated and fully mutated alleles to the offspring was always associated with size increase. No change in repeat number was found when normal alleles were transmitted.

Analysis of unstable DNA sequence in FRM1 gene in Polish families with fragile X syndrome

100%

Milewski M., Zygulska M., Bal J., Deelen W. H., Obersztyn E., Bocian E., Halley D. J. J., Horst J., Mazurczak T.

Acta Biochimica Polonica

1996

tom 43

nr 2

Ograniczanie wyników

2 Acta Biochimica Polonica

2 Bal J.

2 Bocian E.

2 Deelen W. H.

2 Halley D. J. J.

2 Horst J.

2 Mazurczak T.

2 Milewski M.

2 Obersztyn E.

2 Zygulska M.

2 1996

Wyniki wyszukiwania

Analysis of unstable DNA sequence in FMR1 gene in Polish families with fragile X syndrom

Analysis of unstable DNA sequence in FRM1 gene in Polish families with fragile X syndrome