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Glaser, B.* ; Shirneshan, K.* ; Bink, K. ; Wirth, J.* ; Kehrer-Sawatzki, H.* ; Bartz, U.* ; Zoll, B.* ; Bohlander, S.K.

Molecular cytogenetic analysis of a de novo balanced X;autosome translocation: Evidence for predominant inactivation of the derivative X chromosome in a girl with multiple malformations.

Am. J. Med. Genet. A 126A, 229-236 (2004)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
We report on the characterization of a de novo, apparently balanced translocation t(X;15)(p11.3;q26) detected in a girl with multiple congenital malformations. Replication banding studies on Epstein–Barr virus transformed peripheral blood lymphocytes revealed non-random X chromosome inactivation with predominant inactivation of the derivative X chromosome. Using chromosomal fluorescence in situ hybridization (FISH), we located the breakpoints to a 30 kb region on the short arm of the X chromosome band p11.3 and to a 160 kb region defined by BAC RP11-89K11 on the long arm of chromosome 15. Our data suggest that the disruption/disturbance of plant homeo domain (PHD) zinc finger gene KIAA0215 or of another gene (RGN, RNU12, P17.3, or RBM10) in the breakpoint region on the X chromosome is not well tolerated and leads to the selection of cells with an active non-rearranged X chromosome.
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Publication type Article: Journal article
Document type Scientific Article
Keywords X; 15 translocation; X inactivation; chromosomal breakpoint mapping; mental retardation; KIAAO215; PHD zinc finger; RGN
ISSN (print) / ISBN 1552-4825
e-ISSN 1552-4833
Journal American Journal of Medical Genetics, Part A
Quellenangaben Volume: 126A, Issue: 3, Pages: 229-236 Article Number: , Supplement: ,
Publisher Wiley
Reviewing status Peer reviewed
Institute(s) Institute of Clinical Molecular Biology and Tumor Genetics (K.MOLBI)
Institute of Pathology (PATH)