Amino Acid Substitution in the Cysteine-Rich Region of the Integrin β4 Subunit Causes Late-Onset Mild Junctional Epidermolysis Bullosa without Extracutaneous Involvement.

Abstract excerpt

Integrin α6β4, encoded by ITGA6 and ITGB4, is a transmembrane component of hemidesmosomes and plays an important role in connecting keratinocytes with extracellular matrix proteins. ITGB4 or ITGA6 biallelic pathogenic variants cause junctional epidermolysis bullosa (JEB) with pyloric atresia, which is associated with high lethality. Patients who survive usually develop JEB of intermediate severity and urorenal...

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