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The PITX3 gene in posterior polar congenital cataract in Australia


Burdon, KP and McKay, JD and Wirth, MG and Russell-Eggit, IM and Bhatti, S and Ruddle, JB and Dimasi, D and Mackey, DA and Craig, JE, The PITX3 gene in posterior polar congenital cataract in Australia, Molecular Vision, 12, (42-45) pp. 367-371. ISSN 1090-0535 (2006) [Refereed Article]


Purpose: Congenital cataract is a significant cause of blindness worldwide. Many genes are known to cause the disorder. A large multigenerational pedigree was investigated for the genetic cause of a posterior polar autosomal dominant congenital cataract. Methods: A genome wide scan was conducted in a large multigenerational family with autosomal dominant cataract to identify the linked region of the genome. The PITX3 gene was investigated through direct sequencing and detection of fluorescently labeled PCR products. Results: Linkage was detected to a region of chromosome 10q23-26 which contains the candidate gene PITX3. A segregating 17 bp insertion mutation was identified. This mutation was not identified in 100 additional unrelated sporadic and familial congenital cataract patients. No mutations of the PITX3 gene were identified in 9 families with posterior polar congenital cataract. Conclusions: The 657ins17bp duplication of the PITX3 gene is the cause of the cataract phenotype in the large pedigree, however, this gene appears responsible for only a small proportion of congenital cataract in Australia. © 2006 Molecular Vision.

Item Details

Item Type:Refereed Article
Research Division:Biomedical and Clinical Sciences
Research Group:Ophthalmology and optometry
Research Field:Ophthalmology
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:McKay, JD (Dr James McKay)
UTAS Author:Mackey, DA (Professor David Mackey)
ID Code:40072
Year Published:2006
Web of Science® Times Cited:34
Deposited By:Medicine
Deposited On:2006-08-01
Last Modified:2011-11-21

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