Fundus albipunctatus: Novel mutations and phenotypic description of Israeli patients

Eran Pras*, Elon Pras*, Haike Reznik-Wolf, Dror Sharon, Svetlana Raivech, Yaniv Barkana, Almogit Abu-Horowitz, Rotenstreich Ygal, Eyal Banin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: To characterize the genetic defects associated with fundus albipunctatus (FAP) in patients in Israel. Methods: Twenty patients with FAP from diverse ethnicities underwent ophthalmic and electroretinogram tests following the International Society for Clinical Electrophysiology of Vision protocol. Genomic DNA was extracted from peripheral blood. Mutation analysis of the 11-cis retinol dehydrogenase (RDH5) gene was performed with direct sequencing of PCRamplified exons. Results: Four novel RDH5 gene mutations were identified. Of them, the null mutations c.343C>T (p.R54X) and c. 242delTGCC were most prevalent. Macular involvement was present in two patients who carry different mutation types. Conclusions: Mutation analysis of the RDH5 gene in the present series revealed four novel mutations and a previously reported one. No significant genotype-phenotype correlation was found.

Original languageEnglish
Pages (from-to)1712-1718
Number of pages7
JournalMolecular Vision
Volume18
StatePublished - 23 Jun 2012

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