In cicatricial pemphigoid, which antigen does IgG target on the epidermal side when using the salt-split skin method?

Explanation

In cicatricial pemphigoid, IgG antibodies bind to Type XVII collagen located on the epidermal side of the salt-split skin. Other antigens such as epiligrin, laminin-5, and BP antigens 1 and 2 are associated with different blistering disorders.