Novel keratin 17 mutations in pachyonychia congenita type 2

JOURNAL OF INVESTIGATIVE DERMATOLOGY

卷:116

Article

Smith, FJD ; Coleman, CM ; Bayoumy, NM ; Tenconi, R ; Nelson, J ; David, A ; McLean, WHI

关键词: genetics;    genodermatosis;    intermediate filaments;    keratinizing disorder;    mutation;   

DOI  :  10.1046/j.1523-1747.2001.01335.x

来源: Elsevier

【 摘 要 】

Pachyonychia congenita type 2 is an inherited ectodermal dysplasia characterized by hypertrophic nail dystrophy and multiple pilosebaceous cysts. Focal nonepidermolytic palmoplantar keratoderma, natal teeth, and pili torti may also be present. Epithelial tissues affected in pachyonychia congenita type 2 express the keratin pair K6b/K17. Here, we report three novel heterozygous mutations in the K17 gene (KRT17A) in patients presenting with pachyonychia congenita type 2. These mutations, R94-98del (deletion of the peptide sequence RLASY) and missense mutations R94P and L95Q, are all within the 1A domain hotspot for pathogenic keratin mutations.

【 授权许可】

Free