Simultaneous Detection of Common Founder Mutations Using a Cost-Effective Deep Sequencing Panel

Sapir Shalom, Mor Hanany, Avital Eilat, Itay Chowers, Tamar Ben-Yosef, Samer Khateb, Eyal Banin, Dror Sharon*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Inherited retinal diseases (IRDs) are a clinically and genetically heterogeneous group of diseases which cause visual loss due to Mendelian mutations in over 250 genes, making genetic diagnosis challenging and time-consuming. Here, we developed a new tool, CDIP (Cost-effective Deep-sequencing IRD Panel) in which a simultaneous sequencing of common mutations is performed. CDIP is based on simultaneous amplification of 47 amplicons harboring common mutations followed by next-generation sequencing (NGS). Following five rounds of calibration of NGS-based steps, CDIP was used in 740 IRD samples. The analysis revealed 151 mutations in 131 index cases. In 54 (7%) of these cases, CDIP identified the genetic cause of disease (the remaining were single-heterozygous recessive mutations). These include a patient that was clinically diagnosed with retinoschisis and found to be homozygous for NR2E3-c.932G>A (p.R311Q), and a patient with RP who is hemizygous for an RPGR variant, c.292C>A (p.H98N), which was not included in the analysis but is located in proximity to one of these mutations. CDIP is a cost-effective deep sequencing panel for simultaneous detection of common founder mutations. This protocol can be implemented for additional populations as well as additional inherited diseases, and mainly in populations with strong founder effects.

Original languageEnglish
Article number646
JournalGenes
Volume15
Issue number5
DOIs
StatePublished - May 2024

Bibliographical note

Publisher Copyright:
© 2024 by the authors.

Keywords

  • inherited retinal diseases
  • NGS
  • panel sequencing
  • primers

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