hrp0084p2-463 | Growth | ESPE2015

Recurrent IGFALS Gene Mutations p.E35Gfs*17 and p.(L409F; A475V): Hot Spot or Founder Effect?

Scaglia Paula , Sala Andrea , Bergada Ignacio , Braslavsky Debora , Keselman Ana , Espinola-Castro Angela , Domene Sabina , Jasper Hector , Corach Daniel , Domene Horacio

Background: Some IGFALS variants have been reported in more than one ALS-deficient family raising the question whether they originated from a single common ancestor allele (founder effect) or alternatively, as independent mutational events (hot spot). Since c.103dupG (p.E35Gfs*17) is located in a stretch of five consecutive guanine residues, where both G-duplication and deletion have been described in several families, we speculate that this region could be a hot spot...