Late-Onset Junctional Epidermolysis Bullosa, also known as epidermolysis bullosa progressiva, is related to epidermolysis bullosa dystrophica neurotrophica and epidermolysis bullosa. An important gene associated with Late-Onset Junctional Epidermolysis Bullosa is COL17A1 (Collagen Type XVII Alpha 1 Chain). Affiliated tissues include skin and eye, and related phenotypes are abnormal blistering of the skin and nail dystrophy