JOURNAL ARTICLE

A molecular defect in loricrin, the major component of the cornified cell envelope, underlies Vohwinkel's syndrome

E Maestrini, A P Monaco, J A McGrath, A Ishida-Yamamoto, C Camisa, A Hovnanian, D E Weeks, M Lathrop, J Uitto, A M Christiano
Nature Genetics 1996, 13 (1): 70-7
8673107
Terminal keratinocyte differentiation involves coordinated expression of several functionally interdependent genes, many of which have been mapped to the epidermal differentiation complex (EDC) on chromosome 1q21. We have identified linkage of Vohwinkel's syndrome in an extended pedigree to markers flanking the EDC region with a maximum multipoint lod score of 14.3. Sequencing of the loricrin gene revealed an insertion that shifts the translation frame of the C-terminal Gly- and Gln/Lys-rich domains, and is likely to impair cornification. Our findings provide the first evidence for a defect in an EDC gene in human disease, and disclose novel insights into perturbations of cornified cell envelope formation.

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