Epidermolysis Bullosa simplex is because of defect in:
Epidermolysis Bullosa simplex : defect in K5 and K14
Epidermolysis Bullosa Junctionalis : defect in Laminin
Epidermolysis Bullosa  Dystrophica : defect in collagen 7
Epidermolysis Bullosa Acquisita : absence of collagen 7
Collagen 7
Keratin 5 and Keratin 14
Laminin
BP1 and BP2