Abstract:
:Hay-Wells syndrome, also known as ankyloblepharon-ectodermal dysplasia-clefting (AEC) syndrome (OMIM 106260), is a rare autosomal dominant disorder characterized by congenital ectodermal dysplasia, including alopecia, scalp infections, dystrophic nails, hypodontia, ankyloblepharon and cleft lip and/or cleft palate. This constellation of clinical signs is unique, but some overlap can be recognized with other ectodermal dysplasia syndromes, for example ectrodactyly--ectodermal dysplasia--cleft lip/palate (EEC; OMIM 604292), limb--mammary syndrome (LMS; OMIM 603543), acro-dermato-ungual-lacrimal-tooth syndrome (ADULT; OMIM 103285) and recessive cleft lip/palate--ectodermal dysplasia (CLPED1; OMIM 225060). We have recently demonstrated that heterozygous mutations in the p63 gene are the major cause of EEC syndrome. Linkage studies suggest that the related LMS and ADULT syndromes are also caused by mutations in the p63 gene. Thus, it appears that p63 gene mutations have highly pleiotropic effects. We have analysed p63 in AEC syndrome patients and identified missense mutations in eight families. All mutations give rise to amino acid substitutions in the sterile alpha motif (SAM) domain, and are predicted to affect protein--protein interactions. In contrast, the vast majority of the mutations found in EEC syndrome are amino acid substitutions in the DNA-binding domain. Thus, a clear genotype--phenotype correlation can be recognized for EEC and AEC syndromes.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
McGrath JA,Duijf PH,Doetsch V,Irvine AD,de Waal R,Vanmolkot KR,Wessagowit V,Kelly A,Atherton DJ,Griffiths WA,Orlow SJ,van Haeringen A,Ausems MG,Yang A,McKeon F,Bamshad MA,Brunner HG,Hamel BC,van Bokhoven Hdoi
10.1093/hmg/10.3.221subject
Has Abstractpub_date
2001-02-01 00:00:00pages
221-9issue
3eissn
0964-6906issn
1460-2083journal_volume
10pub_type
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