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Eur J Med Genet. 2005 Oct-Dec;48(4):377-87.

Novel GJA1 mutations in patients with oculo-dento-digital dysplasia (ODDD).

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  • 1Department of Orthopaedics, University Hospital Pellenberg, Weligerveld 1, B-3212 Pellenberg, Belgium. philippe.debeer@uz.kuleuven.ac.be


Oculo-dento-digital dysplasia (ODDD) is an autosomal dominant disorder characterized by developmental anomalies of the face, the eyes, the limbs and the teeth. Patients with ODDD usually present with complete syndactyly of the fourth and fifth fingers (type III syndactyly), ocular changes, abnormalities of primary and permanent dentition and specific craniofacial malformations. Mutations in GJA1, a gene that encodes the gap junction protein connexin 43, are responsible for ODDD. Gap junctions are assemblies of intercellular channels that allow exchange of various ions and signaling molecules between cells. In this way, gap junctions play an important regulatory role in a variety of physiologic and developmental processes. We identified three novel and one previously described GJA1 mutation in two large ODDD families and two sporadic ODDD cases.

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