Beta-Ureidopropionase Deficiency, also known as deficiency of beta-ureidopropionase, is related to beta-aminoisobutyric aciduria and hypotonia. An important gene associated with Beta-Ureidopropionase Deficiency is UPB1 (Beta-Ureidopropionase 1). Affiliated tissues include brain and appendix, and related phenotypes are global developmental delay and intellectual disability