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Whole Genome Sequencing Identifies a Novel Homozygous Exon Deletion in the Nt5c2 Gene in a Family With Intellectual Disability and Spastic Paraplegia Publisher



Darvish H1 ; Azcona LJ2 ; Tafakhori A3 ; Ahmadi M3 ; Ahmadifard A1 ; Paisanruiz C4, 5, 6
Authors

Source: npj Genomic Medicine Published:2017


Abstract

Hereditary spastic paraplegias are a rare group of clinically and genetically heterogeneous neurodegenerative diseases, with upper motor neuron degeneration and progressive lower limb spasticity as their main phenotypic features. Despite that 76 distinct loci have been reported and some casual genes identified, most of the underlying causes still remain unidentified. Moreover, a wide range of clinical manifestations is present in most hereditary spastic paraplegias subtypes, adding further complexity to their differential clinical diagnoses. Here, we describe the first exon rearrangement reported in the SPG45/SPG65 (NT5C2) loci in a family featuring a complex hereditary spastic paraplegias phenotype. This study expands both the phenotypic and mutational spectra of the NT5C2-associated disease. © 2017 The Author(s).
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