<prompt> Epidermal Bullosa Acquisita is characterized byImmunoglobulins against collagen 7IgA against BP2Immunoglobulins against BP2Immunoglobulins against Dsg-1  <response>: Epidermal Bullosa Acquisita : Immunoglobulins against collagen 7Epidermal Bullosa Dystrophica : absence of collagen 7 