Article
Mosaicism for maternal uniparental disomy 15 in a boy with some clinical features of Prader-Willi syndrome.
European journal of medical genetics - 1 Jan 2000
Zilina Olga, Kahre Tiina, Talvik Inga, Oiglane-Shlik Eve, Tillmann Vallo, Ounap Katrin
Abstract excerpt
Prader-Willi syndrome (PWS) is caused by the lack of paternal expression of imprinted genes in the human chromosomal region 15q11.2-q13.2, which can be due to an interstitial deletion at 15q11.2-q13 of paternal origin (65-75%), maternal uniparental disomy (matUPD) of chromosome 15 (20-30%), or an imprinting defect (1-3%). The majority of PWS-associated matUPD15 cases represent a complete heterodisomy of...
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