Unique combination and in silico modeling of biallelic POLR3A variants as a cause of Wiedemann-Rautenstrauch syndrome

Eur J Hum Genet. 2020 Dec;28(12):1675-1680. doi: 10.1038/s41431-020-0673-1. Epub 2020 Jun 18.

Abstract

Neonatal progeroid syndrome or Wiedemann-Rautenstrauch syndrome (WRS; MIM 264090) is a rare genetic disorder that has clinical symptoms including premature aging, lipodystrophy, and variable mental impairment. Until recently genetic background of the disease was unclear. However, recent studies have indicated that WRS patients have compound heterozygote variations in the POLR3A (RNA polymerase III subunit 3A; MIM 614258) gene that might be responsible for the disease phenotype. In this study we report a WRS patient that has compound heterozygote variations in the POLR3A gene. One of the reported variations in our patient, c.3568C>T, p.(Gln1190Ter), is a novel variation that was not reported before. The other variant, c.3337-11T>C, was previously shown in WRS patients in trans with other variations.

Publication types

  • Case Reports

MeSH terms

  • Alleles
  • Child
  • Female
  • Fetal Growth Retardation / genetics*
  • Fetal Growth Retardation / pathology
  • Humans
  • Molecular Dynamics Simulation
  • Mutation
  • Progeria / genetics*
  • Progeria / pathology
  • RNA Polymerase III / chemistry
  • RNA Polymerase III / genetics*

Substances

  • POLR3A protein, human
  • RNA Polymerase III

Supplementary concepts

  • Progeroid syndrome, neonatal