Aniridia due to a novel microdeletion affecting PAX6 regulatory enhancers: case report and review of the literature

J Genet. 2018 Jun;97(2):555-562.

Abstract

Aniridia is a rare congenital ocular malformation that follows an autosomal dominant mode of inheritance. Most patients carry pathogenic point mutations in the paired box 6 gene (PAX6), but some carry deletions involving the 11p13 region, encompassing partly or completely PAX6 or the region downstream. We identified a novel deletion, ~564 kb in size located about 46.5 kb downstream of PAX6 in a family with bilateral aniridia and foveal hypoplasia using array-CGH and multiplex ligation-dependent probe amplification. We also reviewall of the reported deletions downstream of PAX6 in patients with aniridia and/or other congenital malformations and define the overlapping region that leads to aniridia when deleted.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Adolescent
  • Adult
  • Aniridia / genetics*
  • Aniridia / pathology
  • DNA Mutational Analysis
  • Enhancer Elements, Genetic / genetics*
  • Family Health
  • Female
  • Humans
  • Male
  • PAX6 Transcription Factor / genetics*
  • Pedigree
  • Sequence Deletion*

Substances

  • PAX6 Transcription Factor
  • PAX6 protein, human