Phosphoserine Phosphatase Deficiency, also known as deficiency of phosphoserine phosphatase, is related to serine deficiency and neu-laxova syndrome due to 3-phosphoserine phosphatase deficiency, and has symptoms including seizures An important gene associated with Phosphoserine Phosphatase Deficiency is PSPH (Phosphoserine Phosphatase), and among its related pathways/superpathways is One-carbon metabolism and related pathways. Related phenotypes are global developmental delay and postnatal growth retardation