Abstract:
:Muenke syndrome, also known as FGFR3-associated coronal synostosis, is defined molecularly by the presence of a heterozygous nucleotide transversion, c.749C>G, encoding the amino acid substitution Pro250Arg, in the fibroblast growth factor receptor type 3 gene (FGFR3). This frequently occurs as a new mutation, manifesting one of the highest documented rates for any transversion in the human genome. To understand the biology of this mutation, we have investigated its parental origin, and the ages of the parents, in 19 families with de novo c.749C>G mutations. All ten informative cases originated from the paternal allele (95% confidence interval 74-100% paternal); the average paternal age at birth overall was 34.7 years. An exclusive paternal origin of mutations, and increased paternal age, were previously described for a different mutation (c.1138G>A) of the FGFR3 gene causing achondroplasia, as well as for mutations of the related FGFR2 gene causing Apert, Crouzon and Pfeiffer syndromes. We conclude that similar biological processes are likely to shape the occurrence of this c.749C>G mutation as for other mutations of FGFR3 as well as FGFR2.
journal_name
Hum Genetjournal_title
Human geneticsauthors
Rannan-Eliya SV,Taylor IB,De Heer IM,Van Den Ouweland AM,Wall SA,Wilkie AOdoi
10.1007/s00439-004-1151-5keywords:
subject
Has Abstractpub_date
2004-08-01 00:00:00pages
200-7issue
3eissn
0340-6717issn
1432-1203journal_volume
115pub_type
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