We demonstrated the absence of the recurrent mutations R578X, 7786delG, and R2814X in 42 non-British patients with DEB and detected the mutations 425A-->G in a French patient and G2043R in Japanese and Chinese patients with DEB.
Given the widespread geographical distribution of this mutation and the demonstration of its occurrence as a de novo event, G2043R therefore represents the first example of a mutational hotspot in dominant DEB.