A t(7;12) balanced translocation with breakpoints overlapping those of the Williams-Beuren and 12q14 microdeletion syndromes.

Details

Serval ID
serval:BIB_078F653B401C
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
A t(7;12) balanced translocation with breakpoints overlapping those of the Williams-Beuren and 12q14 microdeletion syndromes.
Journal
American Journal of Medical Genetics. Part A
Author(s)
Gimelli S., Chrast J., Baban A., Henrichsen C.N., Lerone M., Zuffardi O., Gimelli G., Reymond A.
ISSN
1552-4833[electronic], 1552-4825[linking]
Publication state
Published
Issued date
2010
Peer-reviewed
Oui
Volume
152A
Number
5
Pages
1285-1294
Language
english
Abstract
The molecular characterization of balanced chromosomal rearrangements have always been of advantage in identifying disease-causing genes. Here, we describe the breakpoint mapping of a de novo balanced translocation t(7;12)(q11.22;q14.2) in a patient presenting with a failure to thrive associated with moderate mental retardation, facial anomalies, and chronic constipation. The localization of the breakpoints and the co-occurrence of Williams-Beuren syndrome and 12q14 microdeletion syndrome phenotypes suggested that the expression of some of the dosage-sensitive genes of these two segmental aneuploidies were modified in cells of the proposita. However, we were unable to identify chromosomes 7 and/or 12-mapping genes that showed disturbed expression in the lymphoblastoids of the proposita. This case showed that position-effect might operate in some tissues, but not in others. It also illustrates the overlap of phenotypes presented by patients with the recently described 12q14 structural rearrangements.
Keywords
Cell Line, Chromosome Banding, Chromosome Breakage, Chromosome Deletion, Chromosome Mapping, Chromosomes, Human, Pair 12/genetics, Chromosomes, Human, Pair 7/genetics, Comparative Genomic Hybridization, Female, Humans, Infant, Infant, Newborn, Karyotyping, Pregnancy, Translocation, Genetic, Williams Syndrome/genetics
Pubmed
Web of science
Create date
12/11/2010 18:36
Last modification date
20/08/2019 12:29
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