Author:
Jacob Arthur,Pasquier Jennifer,Carapito Raphael,Auradé Frédéric,Molitor Anne,Froguel Philippe,Fakhro Khalid,Halabi Najeeb,Viot Géraldine,Bahram Seiamak,Rafii Arash
Abstract
Abstract
Background
Mandibulofacial dysostosis with microcephaly (MFDM) is a rare autosomal dominant genetic disease characterized by intellectual and growth retardations, as well as major microcephaly, induced by missense and splice site variants or microdeletions in the EFTUD2 gene.
Case presentation
Here, we investigate the case of a young girl with symptoms of MFDM and a normal karyotype. Whole-exome sequencing of the family was performed to identify genetic alterations responsible for this phenotype. We identified a de novo synonymous variant in the EFTUD2 gene. We demonstrated that this synonymous variant disrupts the donor splice-site in intron 9 resulting in the skipping of exon 9 and a frameshift that leads to a premature stop codon.
Conclusions
We present the first case of MFDM caused by a synonymous variant disrupting the donor splice site, leading to exon skipping.
Funder
Université de Strasbourg
Agence Nationale de la Recherche
Publisher
Springer Science and Business Media LLC
Subject
Genetics (clinical),Genetics
Cited by
7 articles.
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