Intellectual Developmental Disorder, Autosomal Recessive 1, also known as mrt1, is related to rhabdoid tumor predisposition syndrome 1 and rhabdoid cancer. An important gene associated with Intellectual Developmental Disorder, Autosomal Recessive 1 is PRSS12 (Serine Protease 12). Affiliated tissues include brain and lymph node, and related phenotypes are intellectual disability, severe and nystagmus