Journal
HUMAN MUTATION
Volume 29, Issue 11, Pages E278-E283Publisher
WILEY
DOI: 10.1002/humu.20869
Keywords
anophthalmia; microphthalmia; OTX2 gene; coloboma
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Funding
- Academy of Medical Sciences/Health Foundation Senior Surgical Scientist Award
- Polak Trust
- VICTA
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Severe ocular malformations, including anophthalmia-microphthalmia (AM), are responsible for around 25% of severe visual impairment in childhood. Recurrent interstitial deletions of 14q22-23 are associated with AM and a wide range of extra-ocular phenotypes including brain anomalies. The homeobox gene OTX2 is located at 14q22.3 and has recently been identified as mutated in AM patients. Eight human OTX2 mutations have been reported in subjects with severe eye malformations, including AM, and variable developmental delay. We screened a novel AM cohort for mutations and deletions in OTX2, and identified four new mutations in six individuals and two cases of whole gene deletions. Our data suggest that OTX2 mutations and deletions account for 2-3% of AM cases. (C) 2008 Wiley-Liss, Inc.
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