A likely damaging missense variant in the ITPR1 gene was identified in an ASD proband from the Autism Clinical and Genetic Resources in China (ACGC) cohort (Wang et al., 2016). Two additional possibly damaging de novo missense variants in ITPR1 had previously been identified in ASD probands from the Autism Sequencing Consortium (De Rubeis et al., 2014) and the Simons Simplex Collection (Iossifov et al., 2014).
This gene encodes an intracellular receptor for inositol 1,4,5-trisphosphate. Upon stimulation by inositol 1,4,5-trisphosphate, this receptor mediates calcium release from the endoplasmic reticulum. Mutations in this gene cause spinocerebellar ataxia type 15, a disease associated with an heterogeneous group of cerebellar disorders.
Type of Disorder
Synaptic, transcriptional and chromatin genes disrupted in autism.