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Breakpoint mapping by whole genome sequencing identifies PTH2R gene disruption in a patient with midline craniosynostosis and a de novo balanced chromosomal rearrangement.

Title
 Breakpoint mapping by whole genome sequencing identifies PTH2R gene disruption in a patient with midline craniosynostosis and a de novo balanced chromosomal rearrangement. 
Authors
 Juwon Kim ; Hong Hee Won ; Kyung A Lee ; Nae Yu ; Jong Rak Choi ; Yoonjung Kim 
Issue Date
2015
Journal Title
 Journal of Medical Genetics 
ISSN
 0022-2593 
Citation
 Journal of Medical Genetics, Vol.52(10) : 706~709, 2015 
Abstract
Background : Craniosynostosis (CRS) is a premature closure of calvarial sutures caused by gene mutation or environmental factors or interaction between the two. Only a small proportion of non-syndromic CRS (NSC) patients have a known genetic cause, and thus, it would be meaningful to search for a causative gene disruption for the development NSC. We applied a whole genome sequencing approach on a 15-month-old boy with sagittal and metopic synostosis to identify a gene responsible for the development of the disease. Methods and results : Conventional chromosome study revealed a complex paracentric inversion involving 2q14.3 and 2q34. Array comparative genomic hybridisation did not show any copy number variation. Multicolour banding analysis was carried out and the breakpoints were refined to 2q14 and 2q34. An intronic break of the PTH2R gene was detected by whole genome sequencing and fluorescence in situ hybridisation analysis confirmed disruption of PTH2R. Conclusions : We report PTH2R as a gene that is disrupted in NSC. The disruption of the PTH2R gene may cause uncontrolled proliferation and differentiation of chondrocytes, which in turn results in premature closure of sutures. This addition of PTH2R to the list of genes associated with NSC expands our understanding of the development of NSC.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/141201
DOI
10.1136/jmedgenet-2015-103001
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Laboratory Medicine
Yonsei Authors
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