Biallelic c.1263dupC in DOK7 results in fetal akinesia deformation sequence
Periyasamy Radhakrishnan1, Anju Shukla1, Katta M Girisha1
1Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India.
Abstract:
Fetal akinesia deformation sequence (FADS) is a clinically and genetically heterogeneous condition. Pathogenic variants in DOK7 are known to cause myasthenic syndrome, congenital, 10 (MIM#254300) and, rarely (reported in a single family) lethal FADS. Herein, we describe a biallelic variant c.1263dupC in DOK7, known to cause congenital myasthenic syndrome 10, causing lethal FADS in a consanguineous family. The present report illustrates wide phenotypic variability caused by biallelic pathogenic variants in DOK7. We also describe the second family with FADS due to pathogenic variants in DOK7.
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