Girl with monosomy 1p36 and Angelman syndrome due to unbalanced der(1) transmission of a maternal translocation t(1;15)(p36.3;q13.1)

We report on a girl with monosomy 1p36.3 and Angelman syndrome due to an unbalanced transmission of a maternal balanced chromosomal translocation. She manifested monosomy 1p36 and Angelman syndrome including generalized hypopigmentation, ataxic movements, intractable seizures with characteristic ele...

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Bibliographic Details
Published in:American journal of medical genetics. Part A 2004-11, Vol.131A (1), p.94-98
Main Authors: Torisu, Hiroyuki, Yamamoto, Toshiyuki, Fujiwaki, Takehisa, Kadota, Mitsutaka, Oshimura, Mitsuo, Kurosawa, Kenji, Akaboshi, Shinjiro, Oka, Akira
Format: Article
Language:English
Subjects:
Abnormalities, Multiple - genetics
Abnormalities, Multiple - pathology
Angelman syndrome
Angelman Syndrome - pathology
chromosomal abnormality
chromosome 1
Chromosomes, Human, Pair 1 - genetics
Chromosomes, Human, Pair 15 - genetics
Female
Humans
In Situ Hybridization, Fluorescence
Infant
Karyotyping
Monosomy
monosomy 1p36
Translocation, Genetic
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Summary:We report on a girl with monosomy 1p36.3 and Angelman syndrome due to an unbalanced transmission of a maternal balanced chromosomal translocation. She manifested monosomy 1p36 and Angelman syndrome including generalized hypopigmentation, ataxic movements, intractable seizures with characteristic electroencephalographic (EEG) abnormality compatible with Angelman syndrome, and other minor anomalies, large anterior fontanelle, severe psychomotor retardation, and seizures due to monosomy 1p36. Her karyotype was 45, XX, der(1) t(1;15)(p36.31;q13.1),−15, derived from maternal translocation. Molecular analysis determined a breakpoint of 1p between D1S243 and D1S468, which suggested that most genes contributing to the common phenotype are in the distal region. © 2004 Wiley‐Liss, Inc.
ISSN:1552-4825
1552-4833
DOI:10.1002/ajmg.a.30413