A novel nonsense mutation in RSPO4 gene underlies autosomal recessive congenital anonychia in a Pakistani family.

Naveed Wasif, Wasim Ahmad

Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.

Pediatric dermatology 2013 Jan-Feb

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Congenital anonychia is an inherited autosomal recessive disorder characterized by complete absence of fingernails or toenails, or both. In the present study, we have described a consanguineous Pakistani family having a family member affected with congenital anonychia. Genotyping using polymorphic microsatellite markers showed linkage of the family to gene RSPO4 encoding R-spondin and mapped on human chromosome 20p13. Deoxyribonucleic acid sequence analysis of the gene identified a novel nonsense mutation (c.18C>A; p.Cys6X) in the affected family member. © 2011 Wiley Periodicals, Inc.

Citation

Naveed Wasif, Wasim Ahmad. A novel nonsense mutation in RSPO4 gene underlies autosomal recessive congenital anonychia in a Pakistani family. Pediatric dermatology. 2013 Jan-Feb;30(1):139-41