期刊文献+

和伴耳聋的Clouston综合征相似的表型与G JB2基因新的错义突变有关

A Phenotype resembling the clouston syndrome with deafness is associated with a novelmissense GJB2 mutation
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摘要 Mutations in GJB2 (connexin26) are associated with skin disorders and deafness.The Clouston syndrome (MIM129500) is associated with mutations in GJB6 (connexin30).Here, we describe a patient suffering from a Clouston-syndrome-like phenotype of thin hair, deafness, nail dystrophy, and mild erythrokeratoderma, caused by a novel spontaneous missense mutation in GJB2.The heterozygous mutation in codon 42, AAC > AAG, changes asparagine to lysine (N14K).Interestingly, this asparagine is near two of the residues mutated in Keratitis-like ichthyosis deafness (KID) syndrome (G12R and S17F), yet the phenotype associated with N14K strongly differs from the KID phenotype.Instead, there is clear phenotypic overlapwith syndromes associatedwith connexin26 or 30 mutations.Our findings suggest that careful audiological evaluation of patients suffering from Clouston-syndrome-like phenotypes iswarranted and expand the spectrum of connexin26-associated disease. Mutations in GJB2 (connexin26) are associated with skin disorders and deafness.The Clouston syndrome (MIM129500) is associated with mutations in GJB6 (connexin30).Here, we describe a patient suffering from a Clouston-syndrome-like phenotype of thin hair, deafness, nail dystrophy, and mild erythrokeratoderma, caused by a novel spontaneous missense mutation in GJB2.The heterozygous mutation in codon 42, AAC > AAG, changes asparagine to lysine (N14K).Interestingly, this asparagine is near two of the residues mutated in Keratitis-like ichthyosis deafness (KID) syndrome (G12R and S17F), yet the phenotype associated with N14K strongly differs from the KID phenotype.Instead, there is clear phenotypic overlapwith syndromes associatedwith connexin26 or 30 mutations.Our findings suggest that careful audiological evaluation of patients suffering from Clouston-syndrome-like phenotypes iswarranted and expand the spectrum of connexin26-associated disease.
出处 《世界核心医学期刊文摘(皮肤病学分册)》 2005年第1期54-54,共1页 Digest of the World Core Medical JOurnals:Dermatology
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