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  • Title: SHANK1 and autism spectrum disorders.
    Author: Gong X, Wang H.
    Journal: Sci China Life Sci; 2015 Oct; 58(10):985-90. PubMed ID: 26335738.
    Abstract:
    Autism spectrum disorders (ASD) are highly heterogeneous pediatric developmental disorders with estimated heritability more than 70%. Although the genetic factors in ASD are mainly unknown, a large number of gene mutations have been found, especially in genes involved in neurogenesis. The Neurexin-Neuroligin-Shank (NRXN-NLGN-SHANK) pathway plays a key role in the formation, maturation and maintenance of synapses, consistent with the hypothesis of neurodevelopmental abnormality in ASD. Presynaptic NRXNs interact with postsynaptic NLGNs in excitatory glutamatergic synapses. SHANK proteins function as core components of the postsynaptic density (PSD) by interacting with multiple proteins. Recently, deletions and point mutations of the SHANK1 gene have been detected in ASD individuals, indicating the involvement of SHANK1 in ASD. This review focuses on the function of SHANK1 protein, Shank1 mouse models, and the molecular genetics of the SHANK1 gene in human ASD.
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