Berry, V;
Pontikos, N;
Moore, A;
Ionides, ACW;
Plagnol, V;
Cheetham, ME;
Michaelides, M;
(2018)
A novel missense mutation in HSF4 causes autosomal-dominant congenital lamellar cataract in a British family.
Eye
, 32
pp. 806-812.
10.1038/eye.2017.268.
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Abstract
Purpose: Inherited cataract, opacification of the lens, is the most common worldwide cause of blindness in children. We aimed to identify the genetic cause of isolated autosomal-dominant lamellar cataract in a five-generation British family. / Methods: Whole exome sequencing (WES) was performed on two affected individuals of the family and further validated by direct sequencing in family members. / Results: A novel missense mutation NM_001040667.2:c.190A>G;p.K64E was identified in the DNA-binding-domain of heat-shock transcription factor 4 (HSF4) and found to co-segregate with disease. / Conclusion: We have identified a novel mutation in HSF4 in a large British pedigree causing dominant congenital lamellar cataract. This is the second mutation in this gene found in the British population. This mutation is likely to be dominant negative and affect the DNA-binding affinity of HSF4.
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