Mutations in Subunits of the Activating Signal Cointegrator 1 Complex Are Associated with Prenatal Spinal Muscular Atrophy and Congenital Bone Fractures

We report on recessive loss-of-function mutations in two genes (TRIP4 and ASCC1) that encode subunits of the nuclear activating signal cointegrator 1 (ASC-1) complex. We used autozygosity mapping and whole-exome sequencing to search for pathogenic mutations in four families. Affected individuals presented with prenatal-onset spinal muscular atrophy (SMA), multiple congenital contractures (arthrogryposis multiplex congenita), respiratory distress, and congenital bone fractures.

Source: The American Journal of Human Genetics - February 25, 2016 Category: Genetics & Stem Cells Authors: Ellen Knierim, Hiromi Hirata, Nicole I. Wolf, Susanne Morales-Gonzalez, Gudrun Schottmann, Yu Tanaka, Sabine Rudnik-Schöneborn, Mickael Orgeur, Klaus Zerres, Stefanie Vogt, Anne van Riesen, Esther Gill, Franziska Seifert, Angelika Zwirner, Janbernd Kir Tags: Article Source Type: research