Homozygous Mutations in CAST and Its Expression and Localization in the Skin
(A) Sequence chromatograms showing homozygous mutations c.607dup, c.424A>T, and c.1750delG in the affected individuals. Arrows indicate the position of the mutation.
(B) Homozygous frameshift mutation c.607dup-mediated mRNA decay of calpastatin in individual 1 is demonstrated by qRT-PCR compared to the normal control. The error bar represents the SEM.
(C) Immunohistochemistry shows absent calpastatin staining in individual 1 (right) compared to normal staining throughout the epidermis in the control (left). The scale bars represent 50 μm.