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Novel NUS1 variant in a Chinese patient with progressive myoclonus epilepsy: a case report and systematic review

Variants of the NUS1 gene have been associated with an extensive spectrum of phenotypes, including epilepsy, intellectual disability, cerebellar ataxia, Parkinson’s disease, dystonia, and congenital disorder of glycosylation. It is rarely reported in progressive myoclonus epilepsy (PME). Herein, we report the case of PME caused by a novel de novo NUS1 missense variant (c.302T>A, p.Met101Lys). In addition, we reviewed the current literature of NUS1-associated PME.