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GENATLAS PHENOTYPE
last update : 25-05-2010
Symbol MMDW
Location 7q36
Name Werner mesomelic syndrome
Corresponding gene SHH
Main clinical features
  • hypo- or aplasia of the tibiae in addition to the preaxial polydactyly (PPD) of the hands and feet and/or five-fingered hand with absence of thumbs
  • digitalization of the thumb, short lower limbs with aplasia of the tibias, and polydactyly of the toes
  • Genetic determination autosomal dominant
    Function/system disorder osteo-articular
    Type malformation
    Remark(s) . point mutations of a specific nucleotide within the sonic hedgehog (SHH) regulatory region (ZRS), leading to strong ectopic SHH expression and cause MMDW