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Article
March 1976

Molecular Mechanisms of Genetic Disorders of Keratinization

Author Affiliations

From the Division of Dermatology, Duke University Medical Center, Durham, NC.

Arch Dermatol. 1976;112(3):375-378. doi:10.1001/archderm.1976.01630270049012
Abstract

• An attempt is made to organize our current knowledge about genetically determined disorders of keratinized tissue, which primarily affect the epidermal structural proteins. Type I defects are those involving a change in a single amino acid and are analogous to sickle cell anemia. Type II defects are associated with abnormal retention of a normal structural protein intermediate. Type III defects are related to alterations in the normal post-translational cross-linking seen in keratinized tissues. Type IV defects are associated with altered proportions of fibrous proteins and are analogous to thalassemia. In type V defects, primary genetic disorders of other tissues profoundly affect keratinization in a secondary fashion. Examples from genetic disorders of the hair and epidermis are used to build this conceptual scheme.

(Arch Dermatol 112:375-378, 1976)

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