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Identification of a novel NOG gene mutation (P35S) in an Italian family with symphalangism

โœ Scribed by M. Mangino; E. Flex; M.C. Digilio; A. Giannotti; B. Dallapiccola

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
202 KB
Volume
19
Category
Article
ISSN
1059-7794

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โœฆ Synopsis

Symphalangism (SYM or SYM1

) is an autosomal dominant disorder characterized by multiple joint fusions. The disease is caused by mutations of the NOG gene, that maps to chromosome 17q22. So far, only six independent NOG mutations have been identified. We have analysed an Italian family in which father and son had bilateral symphalangism and detected a novel NOG mutation (P35S), originated in the father from a c.914C>T transition. A different mutation in the same codon (P35R) has been previously described. Comparison between different noggin gene hortologs shows that codon 35 is conserved. Therefore, this codon should play an important role in NOG gene function. This is the first mutation described for NOG after the initial report of NOG mutations being causative of SYM.

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