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Umair, M.* ; Alhaddad, B.* ; Rafique, A.* ; Jan, A.* ; Haack, T.B.* ; Graf, E. ; Ullah, A.* ; Ahmad, F.* ; Strom, T.M.* ; Meitinger, T.* ; Ahmad, W.*

Exome sequencing reveals a novel homozygous splice site variant in the WNT1 gene underlying osteogenesis imperfecta type 3.

Pediatr. Res. 82, 753-758 (2017)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
BackgroundOsteogenesis imperfecta (OI) is a heritable bone fragility disorder usually caused by dominant variants in COL1A1 or COL1A2 gen es. Over the last few years, 17 genes including 12 autosomal recessive and five autosomal dominant forms of OI, involved in various aspects of bone formation, have been identified.MethodsWhole-exome sequencing followed by conventional Sanger sequencing was performed in a single affected individual (IV-3) in a family.ResultsHere, we report the clinical and genetic characterization of OI type 3 in a consanguineous family with four affected members. Clinical examinations revealed low bone density, short stature, severe vertebral compression fractures, and multiple long bone fractures in the affected members. Exome sequencing revealed a biallelic pathogenic splice acceptor site variant (c.359-3C > G) in a wingless-type mouse mammary tumor virus integration site family 1 (WNT1) gene located on chromosome 12q13.12.ConclusionWe report a biallelic splice site variant underlying OI type 3 and the first case from the Pakistani population.
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Publication type Article: Journal article
Document type Scientific Article
ISSN (print) / ISBN 0031-3998
e-ISSN 1530-0447
Quellenangaben Volume: 82, Issue: 5, Pages: 753-758 Article Number: , Supplement: ,
Publisher Lippincott Williams & Wilkins
Reviewing status Peer reviewed