Phosphoserine phosphatase deficiency (PSPHD) has been reported in a boy with pre- and postnatal growth retardation, moderate psychomotor retardation, and facial dysmorphism suggestive of Williams syndrome, and in whom compound heterozygous mutation was later identified in PSPH gene. PSPH is the enzyme catalyzing the final and irreversible step of L-serine synthesis from the glycolytic intermediate, 3-phosphoglycerate.
Category
Inherited metabolic disorder
Brite
Human diseases in ICD-11 classification [BR:br08403]
05 Endocrine, nutritional or metabolic diseases
Metabolic disorders
Inborn errors of metabolism
5C50 Inborn errors of amino acid or other organic acid metabolism
H02116 Phosphoserine phosphatase deficiency
Pathway-based classification of diseases [BR:br08402]
Amino acid metabolism
nt06033 Glycine, serine and arginine metabolism
H02116 Phosphoserine phosphatase deficiency
Vincent JB, Jamil T, Rafiq MA, Anwar Z, Ayaz M, Hameed A, Nasr T, Naeem F, Khattak NA, Carter M, Ahmed I, John P, Wiame E, Andrade DM, Schaftingen EV, Mir A, Ayub M
Title
Phosphoserine phosphatase (PSPH) gene mutation in an intellectual disability family from Pakistan.