Novel and recurrent connexin 30.3 and connexin 31 mutations associated with erythrokeratoderma variabilis

C A Scott, E A O'Toole, M J Mohungoo, A Messenger, D P Kelsell
Clinical and Experimental Dermatology 2011, 36 (1): 88-90
Erythrokeratoderma variabilis (EKV) is characterized by fixed hyperkeratotic plaques and transient erythema. Mutations in the genes GJB3 and GJB4, which encode connexin (Cx)31 and Cx30.3, are associated with EKV. We report one novel mutation in Cx31 and one recurrent mutation in Cx30.3 in two different families. One novel rare sequence variant of unknown clinical significance was also identified. This finding extends the spectrum of known EKV-associated mutations.

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