KEGG   DISEASE: Phenylketonuria
Entry
H00167                      Disease                                
Name
Phenylketonuria;
Hyperphenylalaninemia
  Subgroup
Hyperphenylalaninemia, BH4-deficient (HPABH4)
Mild non-BH4-deficient hyperphenylalaninemia (HPANBH4)
Description
Phenylketonuria (PKU) is one of the most common inborn errors of metabolism marked by a deficiency of the hepatic enzyme phenylalanine hydroxylase (PAH), leading to a toxic accumulation of phenylalanine in the blood and multiple tissues and potentially to intellectual disability, delayed speech, seizures, and behavior abnormalities. Deficiency of tetrahydrobiopterin (BH4), the cofactor of PAH, is caused by defects of the enzymes in pterin biosynthesis. Because BH4 is also a cofactor of tyrosine hydroxylase and tryptophan hydroxylase in neurotransmitter synthesis, BH4-deficient hyperphenylalaninemia is characterized by neurotransmitter deficiencies.
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
     H00167  Phenylketonuria
Pathway-based classification of diseases [BR:br08402]
 Amino acid metabolism
  nt06016  Phenylalanine and tyrosine metabolism
   H00167  Phenylketonuria
Pathway
hsa00790  Folate biosynthesis
hsa00400  Phenylalanine, tyrosine and tryptophan biosynthesis
Network
nt06016 Phenylalanine and tyrosine metabolism
Gene
(PKU) PAH [HSA:5053] [KO:K00500]
(HPABH4A) PTS [HSA:5805] [KO:K01737]
(HPABH4B) GCH1 [HSA:2643] [KO:K01495]
(HPABH4C) QDPR [HSA:5860] [KO:K00357]
(HPABH4D) PCBD1 [HSA:5092] [KO:K01724]
(HPANBH4) DNAJC12 [HSA:56521] [KO:K09532]
Drug
Pegvaliase [DR:D11077]
Sapropterin dihydrochloride [DR:D01798]
Other DBs
ICD-11: 5C50.0
ICD-10: E70.0
MeSH: D010661
OMIM: 261600 261640 233910 261630 264070 617384
Reference
  Authors
Lindegren ML, Krishnaswami S, Reimschisel T, Fonnesbeck C, Sathe NA, McPheeters ML
  Title
A Systematic Review of BH4 (Sapropterin) for the Adjuvant Treatment of Phenylketonuria.
  Journal
JIMD Rep 8:109-19 (2013)
DOI:10.1007/8904_2012_168
Reference
PMID:18538294 (PKU)
  Authors
Gersting SW, Kemter KF, Staudigl M, Messing DD, Danecka MK, Lagler FB, Sommerhoff CP, Roscher AA, Muntau AC
  Title
Loss of function in phenylketonuria is caused by impaired molecular motions and conformational instability.
  Journal
Am J Hum Genet 83:5-17 (2008)
DOI:10.1016/j.ajhg.2008.05.013
Reference
PMID:8178819 (HPABH4A)
  Authors
Thony B, Leimbacher W, Blau N, Harvie A, Heizmann CW
  Title
Hyperphenylalaninemia due to defects in tetrahydrobiopterin metabolism: molecular characterization of mutations in 6-pyruvoyl-tetrahydropterin synthase.
  Journal
Am J Hum Genet 54:782-92 (1994)
Reference
PMID:7869202 (HPABH4B)
  Authors
Blau N, Ichinose H, Nagatsu T, Heizmann CW, Zacchello F, Burlina AB
  Title
A missense mutation in a patient with guanosine triphosphate cyclohydrolase I deficiency missed in the newborn screening program.
  Journal
J Pediatr 126:401-5 (1995)
DOI:10.1016/s0022-3476(95)70458-2
Reference
PMID:2116088 (HPABH4C)
  Authors
Howells DW, Forrest SM, Dahl HH, Cotton RG
  Title
Insertion of an extra codon for threonine is a cause of dihydropteridine reductase deficiency.
  Journal
Am J Hum Genet 47:279-85 (1990)
Reference
PMID:8352282 (HPABH4D)
  Authors
Citron BA, Kaufman S, Milstien S, Naylor EW, Greene CL, Davis MD
  Title
Mutation in the 4a-carbinolamine dehydratase gene leads to mild hyperphenylalaninemia with defective cofactor metabolism.
  Journal
Am J Hum Genet 53:768-74 (1993)
Reference
PMID:28132689 (HPANBH4)
  Authors
Anikster Y, Haack TB, Vilboux T, Pode-Shakked B, Thony B, Shen N, Guarani V, Meissner T, Mayatepek E, Trefz FK, Marek-Yagel D, Martinez A, Huttlin EL, Paulo JA, Berutti R, Benoist JF, Imbard A, Dorboz I, Heimer G, Landau Y, Ziv-Strasser L, Malicdan MCV, Gemperle-Britschgi C, Cremer K, Engels H, Meili D, Keller I, Bruggmann R, Strom TM, Meitinger T, Mullikin JC, Schwartz G, Ben-Zeev B, Gahl WA, Harper JW, Blau N, Hoffmann GF, Prokisch H, Opladen T, Schiff M
  Title
Biallelic Mutations in DNAJC12 Cause Hyperphenylalaninemia, Dystonia, and Intellectual Disability.
  Journal
Am J Hum Genet 100:257-266 (2017)
DOI:10.1016/j.ajhg.2017.01.002
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