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J Pak Med Assoc. 2011 Nov;61(11):1060-4.

Identification of LIPH gene mutation in a consanguineous family segregating the woolly hair/hypotrichosis phenotype.

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1
Centre for Human Genetics and Molecular Medicine, Sindh Institute of Urology and Transplantation, Karachi, Pakistan.

Abstract

OBJECTIVE:

To identify the disease causing gene in a four generation consanguineous family in which eleven family members were suffering from Woolly hair/hypotrichosis phenotype.

METHODS:

Linkage analysis was carried out to identify the disease-causing gene in this family. Genomic DNA of all the available family members was genotyped for the microsatellite markers for all the known woolly hair/hypotrichosis loci.Automated DNA sequencing of the candidate gene was performed to identify the disease-causing mutation.

RESULTS:

By using homozygosity linkage analysis we have mapped the family on chromosome 3q27.3 with a two point LOD score of 4.04, Mutation screening of the LIPH gene revealed a homozygous c.659_660delTA deletion mutation segregating with the disease phenotype.

CONCLUSION:

The results indicate that the c.659_660delTA mutation in the LIPH gene cause autosomal recessive WH/hypotrichosis phenotype in this family. This mutation has been reported in several Pakistani and Guyanese families suggesting a founder mutation in the LIPH gene in Indo-Pak sub-continent.

PMID:
22125978
[Indexed for MEDLINE]
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