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PSPH

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PSPH
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesPSPH, PSP, PSPHD, phosphoserine phosphatase
External IDsOMIM: 172480; MGI: 97788; HomoloGene: 31245; GeneCards: PSPH; OMA:PSPH - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_004577

NM_133900

RefSeq (protein)

NP_598661

Location (UCSC)Chr 7: 56.01 – 56.05 MbChr 5: 129.84 – 129.86 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Phosphoserine phosphatase is an enzyme that in humans is encoded by the PSPH gene.[5][6][7]

Function

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The protein encoded by this gene belongs to a subfamily of the phosphotransferases. This encoded enzyme is responsible for the third and last step in L-serine formation. It catalyzes magnesium-dependent hydrolysis of L-phosphoserine and is also involved in an exchange reaction between L-serine and L-phosphoserine. Deficiency of this protein is thought to be linked to Williams syndrome.[7]

Clinical significance

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Homozygous or compound heterozygous mutations in PSPH cause Neu–Laxova syndrome[8] and Phosphoserine phosphatase deficiency.[9][10]

References

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  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000146733Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000029446Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Koch GA, Eddy RL, Haley LL, Byers MG, McAvoy M, Shows TB (Apr 1983). "Assignment of the human phosphoserine phosphatase gene (PSP) to the pter leads to q22 region of chromosome 7". Cytogenetics and Cell Genetics. 35 (1): 67–9. doi:10.1159/000131839. PMID 6297854.
  6. ^ Collet JF, Gerin I, Rider MH, Veiga-da-Cunha M, Van Schaftingen E (May 1997). "Human L-3-phosphoserine phosphatase: sequence, expression and evidence for a phosphoenzyme intermediate". FEBS Letters. 408 (3): 281–4. doi:10.1016/S0014-5793(97)00438-9. PMID 9188776. S2CID 6952728.
  7. ^ a b "Entrez Gene: PSPH phosphoserine phosphatase".
  8. ^ Acuna-Hidalgo R, Schanze D, Kariminejad A, Nordgren A, Kariminejad MH, Conner P, Grigelioniene G, Nilsson D, Nordenskjöld M, Wedell A, Freyer C, Wredenberg A, Wieczorek D, Gillessen-Kaesbach G, Kayserili H, Elcioglu N, Ghaderi-Sohi S, Goodarzi P, Setayesh H, van de Vorst M, Steehouwer M, Pfundt R, Krabichler B, Curry C, MacKenzie MG, Boycott KM, Gilissen C, Janecke AR, Hoischen A, Zenker M (Sep 2014). "Neu-Laxova syndrome is a heterogeneous metabolic disorder caused by defects in enzymes of the L-serine biosynthesis pathway". American Journal of Human Genetics. 95 (3): 285–93. doi:10.1016/j.ajhg.2014.07.012. PMC 4157144. PMID 25152457.
  9. ^ Veiga-da-Cunha M, Collet JF, Prieur B, Jaeken J, Peeraer Y, Rabbijns A, Van Schaftingen E (Feb 2004). "Mutations responsible for 3-phosphoserine phosphatase deficiency". European Journal of Human Genetics. 12 (2): 163–6. doi:10.1038/sj.ejhg.5201083. PMID 14673469.
  10. ^ Jaeken J, Detheux M, Fryns JP, Collet JF, Alliet P, Van Schaftingen E (Jul 1997). "Phosphoserine phosphatase deficiency in a patient with Williams syndrome". Journal of Medical Genetics. 34 (7): 594–6. doi:10.1136/jmg.34.7.594. PMC 1051004. PMID 9222972.

Further reading

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  • Overview of all the structural information available in the PDB for UniProt: P78330 (Phosphoserine phosphatase) at the PDBe-KB.