What Proteins Have Been Shown to Be Altered by Genetic $\alpha$

Multiple Choice

What proteins have been shown to be altered by genetic mutations in patients who suffer from epidermolysis bullosa?

A) the $\alpha$ ₆ integrin subunit
B) the $\beta$ ₄ integrin subunit
C) collagen VII
D) laminin-5
E) All of these are correct.