Mm. Humphries et al., A MUTATION (MET-]ARG) IN THE TYPE-I KERATIN (K14) GENE RESPONSIBLE FOR AUTOSOMAL-DOMINANT EPIDERMOLYSIS-BULLOSA SIMPLEX, Human mutation, 2(1), 1993, pp. 37-42
We have identified a single base change in exon 4 of the type I kerati
n gene which results in the replacement of a methionine for an arginin
e residue at codon 272 in an Irish family displaying an autosomal domi
nant simplex (Koebner) form of epidermolysis bullosa (EB). This family
had previously provided tentative evidence for linkage to genetic mar
kers on chromosome 1q. The mutation cosegregates with the disease, pro
ducing a lod score of 4.8 at theta = 0.