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SHR Neuro Cancer Cardio Lipid Metab Microb

Muzammal, M; Zubair, M; Bierbaumer, S; Blatterer, J; Graf, R; Gul, A; Abbas, S; Badar, M; Abbasi, AA; Khan, MA; Windpassinger, C.
Exome sequence analysis in consanguineous Pakistani families inheriting Bardet-Biedle syndrome determined founder effect of mutation c.299delC (p.Ser100Leufs*24) in BBS9 gene.
MOL GENET GENOM MED. 2019; 7(8): e834-e834. Doi: 10.1002/mgg3.834 [OPEN ACCESS]
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Co-authors Med Uni Graz: Blatterer Jasmin; Graf Ricarda; Windpassinger Christian
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Abstract:: Bardet-Biedl syndrome (BBS) is characterized by a heterogeneous phenotypic spectrum of retinopathy, intellectual disability (ID), obesity, polydactyly, and kidney dysfunctions as the major clinical features. Genetic investigations have reported 21 BBS genes, the products of which are mostly located at the centrosome, basal body or the ciliary transition zone. In the present genetic report, we analyzed two apparently unrelated consanguineous BBS families from Dera Ismail Khan (D.I.Khan) district, Pakistan. Genetic mapping was performed using Whole exome sequencing and Sanger sequencing. Whole exome sequencing identified a recently reported single base deletion NM_001033604.1:c.299delC in the fourth exon of BBS9 in both families. The identified frameshift mutation is predicted to cause premature truncation of the expressed protein (p.Ser100Leufs*24). This mutation has previously been mapped in a consanguineous Pakistani family; therefore this is the second report of this particular mutation in two additional BBS families originating from different locations. We speculate the evolutionary significance of this mutation and assume its strong founder effect in the Khaisoori tribe of D.I.Khan. Based on these findings, we suggest developing a molecular diagnostic test that may be used for premarital and prenatal screening of families at risk of BBS. © 2019 The Authors. Molecular Genetics & Genomic Medicine published by Wiley Periodicals, Inc.
Find related publications in this database (Keywords): BBS9; exome sequencing; founder effect; frameshift mutation; Pakistani family