Neurodevelopmental Disorder with Brain Anomalies, Seizures, and Scoliosis, is also known as glycosylphosphatidylinositol biosynthesis defect 21. An important gene associated with Neurodevelopmental Disorder with Brain Anomalies, Seizures, and Scoliosis is PIGU (Phosphatidylinositol Glycan Anchor Biosynthesis Class U). Affiliated tissues include brain and eye, and related phenotypes are seizure and scoliosis