Journal
AMERICAN JOURNAL OF HUMAN GENETICS
Volume 88, Issue 4, Pages 482-487Publisher
CELL PRESS
DOI: 10.1016/j.ajhg.2011.02.011
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Funding
- Israel General Trustee Fund
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Autosomal-recessive congenital ichthyoses represent a large and heterogeneous group of disorders of epidermal cornification. Recent data suggest that most of these disorders might result from defective lipid transport and metabolism. In the present study, we describe a late-onset form of recessive ichthyosis in a large consanguineous pedigree. By using a combination of homozygosity mapping and positional candidate-gene screening, we identified a 2 bp deletion in LIPN that segregated with the disease phenotype throughout the family. LIPN encodes one of six acid lipases known to be involved in triglyceride metabolism in mammals. LIPN was found to be exclusively expressed in the epidermis and to be strongly induced during keratinocyte differentiation.
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