syndromic intellectual disability PSAT deficiency https://www.malacards.org/card/phosphoserine_aminotransferase_deficiency SCTID:718603002 MEDGEN:410026 GARD:0013273 DOID:0050723 MONDO:0012596 Orphanet:284417 OMIM:610992 phosphoserine aminotransferase deficiency PSAT deficiency MESH:C567032 Phosphoserine aminotransferase deficiency is an extremely rare form of serine deficiency syndrome characterized clinically in the two reported cases to date by acquired microcephaly, psychomotor retardation, intractable seizures and hypertonia. PSATD UMLS:C1970253 neurometabolic disorder due to serine deficiency Phosphoserine aminotransferase deficiency