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Intellectual disability (ID) and autism spectrum disorder (ASD) are two of the most common neurodevelopmental disorders. Both disorders are extremely heterogenous, and only ~‚ÄČ40% of reported cases have so far been attributed to genetic mutations. Of the many cellular processes that are affected, the ubiquitin system (UbS) is of particular relevance in that it can rapidly regulate multiple signaling cascades simultaneously. The UbS is a post-translational modification process that revolves around the covalent attachment of a ubiquitin moiety to a substrate, thereby influencing different elements of protein biology, including trafficking, signal transduction, and degradation. Importantly, the UbS has been implicated in regulating multiple pathophysiological pathways related to ASD and ID. This review will discuss how the UbS acts as major signaling hub in the pathogenesis of ASD and ID, raising the prospect of treating broader patient cohorts by targeting the UbS as a common point of convergence of various mutations.


Maria A Kasherman, Susitha Premarathne, Thomas H J Burne, Stephen A Wood, Michael Piper. The Ubiquitin System: a Regulatory Hub for Intellectual Disability and Autism Spectrum Disorder. Molecular neurobiology. 2020 May;57(5):2179-2193

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PMID: 31974941

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