RESEARCH ARTICLE Functional significance of rare neuroligin 1 variants found in autism Moe Nakanishi1,2, Jun Nomura1, Xiao Ji3,4, Kota Tamada1, Takashi Arai1, Eiki Takahashi1, Maja Bućan3,5, Toru Takumi1,2* 1 RIKEN Brain Science Institute, Wako, Saitama, Japan, 2 Graduate School of Biomedical Sciences, Hiroshima University, Minami, Hiroshima, Japan, 3 Department of Genetics, Perelman School of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America, 4 Genomics and Computational Biology Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America, 5 Department of Psychiatry, Perelman a1111111111 School of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United a1111111111 States of America a1111111111 a1111111111 *
[email protected] a1111111111 Abstract Genetic mutations contribute to the etiology of autism spectrum disorder (ASD), a common, OPEN ACCESS heterogeneous neurodevelopmental disorder characterized by impairments in social inter- Citation: Nakanishi M, Nomura J, Ji X, Tamada K, action, communication, and repetitive and restricted patterns of behavior. Since neuroligin3 Arai T, Takahashi E, et al. (2017) Functional (NLGN3), a cell adhesion molecule at the neuronal synapse, was first identified as a risk significance of rare neuroligin 1 variants found in gene for ASD, several additional variants in NLGN3 and NLGN4 were found in ASD autism. PLoS Genet 13(8): e1006940. https://doi. org/10.1371/journal.pgen.1006940 patients. Moreover, synaptopathies are now known to cause several neuropsychiatric disor- ders including ASD. In humans, NLGNs consist of five family members, and neuroligin1 Editor: Santhosh Girirajan, Pennsylvania State University, UNITED STATES (NLGN1) is a major component forming a complex on excitatory glutamatergic synapses.