Article
A novel variant in SMG9 causes intellectual disability, confirming a role for nonsense-mediated decay components in neurocognitive development.
European journal of human genetics : EJHG - 1 May 2022
Rahikkala Elisa, Urpa Lea, Ghimire Bishwa, Topa Hande, Kurki Mitja I, Koskela Maryna, Airavaara Mikko, Hämäläinen Eija, Pylkäs Katri, Körkkö Jarmo, Savolainen Helena, Suoranta Anu, Bertoli-Avella Aida, Rolfs Arndt, Mattila Pirkko, Daly Mark, Palotie Aarno, Pietiläinen Olli, Moilanen Jukka, Kuismin Outi
Abstract excerpt
Biallelic loss-of-function variants in the SMG9 gene, encoding a regulatory subunit of the mRNA nonsense-mediated decay (NMD) machinery, are reported to cause heart and brain malformation syndrome. Here we report five patients from three unrelated families with intellectual disability (ID) and a novel pathogenic SMG9 c.551 T > C p.(Val184Ala) homozygous missense variant, identified using exome sequencing. Sanger...
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