Identification of mutations in TCOF1: use of molecular analysis in the pre- and postnatal diagnosis of Treacher Collins syndrome.
Treacher Collins syndrome (TCS) is an autosomal dominant disorder of facial development, which results from mutations in TCOF1. TCS comprises conductive hearing loss, hypoplasia of the mandible and maxilla, downward sloping palpebral fissures and cleft palate. Although, there is usually a reasonable degree of bilateral symmetry, a high degree of both inter- and intrafamilial variability is characteristic of TCS. The wide variation in the clinical presentation of different patients, together with the fact that more than 60% of cases arise de novo, can complicate the diagnosis of mild cases and genetic counselling. In the current study, we describe how molecular techniques have been used to facilitate pre- and postnatal disease diagnoses in 13 TCS families.
Dixon
Jill
J
School of Biological Sciences and Department of Dental Medicine and Surgery, University of Manchester, Manchester, England. jill.dixon@man.ac.uk
Ellis
Ian
I
Bottani
Armand
A
Temple
Karen
K
Dixon
Michael James
MJ
D005260:Female; D006801:Humans; D008297:Male; D008342:Mandibulofacial Dysostosis / Q000175:diagnosis* / Q000235:genetics; D009154:Mutation; D009687:Nuclear Proteins / Q000235:genetics*; D010375:Pedigree; D010750:Phosphoproteins / Q000235:genetics*; D011296:Prenatal Diagnosis
D009687:Nuclear Proteins; D010750:Phosphoproteins; C105442:TCOF1 protein, human