PSPH

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

PSPH
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 1L8L, 1L8O, 1NNL
Identifiers
Aliases	PSPH, PSP, PSPHD, phosphoserine phosphatase
External IDs	OMIM: 172480 MGI: 97788 HomoloGene: 31245 GeneCards: PSPH
Gene location (Human) Chr. Chromosome 7 (human)[1] Band 7p11.2 Start 56,011,051 bp[1] End 56,051,604 bp[1]
Gene location (Mouse) Chr. Chromosome 5 (mouse)[2] Band 5|5 G1.3 Start 129,765,558 bp[2] End 129,787,449 bp[2]
RNA expression pattern More reference expression data
Gene ontology Molecular function • calcium ion binding • protein homodimerization activity • metal ion binding • hydrolase activity • magnesium ion binding • phosphoserine phosphatase activity • phosphatase activity Cellular component • cytosol • neuron projection • cytoplasm Biological process • response to testosterone • response to mechanical stimulus • response to nutrient levels • L-serine metabolic process • cellular amino acid biosynthetic process • dephosphorylation • L-serine biosynthetic process Sources:Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	5723	100678
Ensembl	ENSG00000146733	ENSMUSG00000029446
UniProt	P78330	Q99LS3
RefSeq (mRNA)	NM_004577	NM_133900
RefSeq (protein)	NP_004568 NP_001357432 NP_001357433 NP_001357434 NP_001357435 NP_001357436 NP_001357437 NP_001357438 NP_001357439 NP_001357440 NP_001357441 NP_001357442 NP_001357443 NP_001357444 NP_001357445 NP_001357446 NP_001357447 NP_001357448 NP_001357449 NP_001357450 NP_001357451	NP_598661
Location (UCSC)	Chr 7: 56.01 – 56.05 Mb	Chr 5: 129.77 – 129.79 Mb
PubMed search	[3]	[4]
Wikidata
View/Edit Human View/Edit Mouse

Function

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

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

Model organisms

Model organisms have been used in the study of PSPH function. A conditional knockout mouse line called Psph^{tm1a(EUCOMM)Hmgu} was generated at the Wellcome Trust Sanger Institute.[11] Male and female animals underwent a standardized phenotypic screen[12] to determine the effects of deletion.[13][14][15][16] Additional screens performed: - In-depth immunological phenotyping[17]

Psph knockout mouse phenotype

Characteristic	Phenotype
All data available at.[12][17]
Peripheral blood leukocytes 6 Weeks	Normal
Insulin	Normal
Haematology 6 Weeks	Normal
Homozygous viability at P14	Abnormal
Recessive lethal study	Abnormal
Body weight	Normal
Neurological assessment	Normal
Grip strength	Normal
Dysmorphology	Normal
Indirect calorimetry	Normal
Glucose tolerance test	Normal
DEXA	Normal
Radiography	Normal
Eye morphology	Normal
Clinical chemistry	Normal
Haematology 16 Weeks	Normal
Peripheral blood leukocytes 16 Weeks	Normal
Heart weight	Normal
Salmonella infection	Normal
Cytotoxic T Cell Function	Normal
Spleen Immunophenotyping	Normal
Mesenteric Lymph Node Immunophenotyping	Normal
Bone Marrow Immunophenotyping	Normal
Epidermal Immune Composition	Normal
Influenza Challenge	Normal

References

1. GRCh38: Ensembl release 89: ENSG00000146733 - Ensembl, May 2017
2. GRCm38: Ensembl release 89: ENSMUSG00000029446 - Ensembl, 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. "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.
11. Gerdin AK (2010). "The Sanger Mouse Genetics Programme: high throughput characterisation of knockout mice". Acta Ophthalmologica. 88: 925–7. doi:10.1111/j.1755-3768.2010.4142.x. S2CID 85911512.
12. "International Mouse Phenotyping Consortium".
13. Skarnes WC, Rosen B, West AP, Koutsourakis M, Bushell W, Iyer V, Mujica AO, Thomas M, Harrow J, Cox T, Jackson D, Severin J, Biggs P, Fu J, Nefedov M, de Jong PJ, Stewart AF, Bradley A (Jun 2011). "A conditional knockout resource for the genome-wide study of mouse gene function". Nature. 474 (7351): 337–42. doi:10.1038/nature10163. PMC 3572410. PMID 21677750.
14. Dolgin E (Jun 2011). "Mouse library set to be knockout". Nature. 474 (7351): 262–3. doi:10.1038/474262a. PMID 21677718.
15. Collins FS, Rossant J, Wurst W (Jan 2007). "A mouse for all reasons". Cell. 128 (1): 9–13. doi:10.1016/j.cell.2006.12.018. PMID 17218247. S2CID 18872015.
16. White JK, Gerdin AK, Karp NA, Ryder E, Buljan M, Bussell JN, Salisbury J, Clare S, Ingham NJ, Podrini C, Houghton R, Estabel J, Bottomley JR, Melvin DG, Sunter D, Adams NC, Tannahill D, Logan DW, Macarthur DG, Flint J, Mahajan VB, Tsang SH, Smyth I, Watt FM, Skarnes WC, Dougan G, Adams DJ, Ramirez-Solis R, Bradley A, Steel KP (Jul 2013). "Genome-wide generation and systematic phenotyping of knockout mice reveals new roles for many genes". Cell. 154 (2): 452–64. doi:10.1016/j.cell.2013.06.022. PMC 3717207. PMID 23870131.
17. "Infection and Immunity Immunophenotyping (3i) Consortium".

Further reading

• Minelli A, Piantanida M, Maserati E, Campagnoli E, Pasquali F, Danesino C (Jan 1990). "Gene dosage effect in acquired monosomy 7: distinct behaviour of beta-glucuronidase and phosphoserine phosphatase". Genes, Chromosomes & Cancer. 1 (3): 216–20. doi:10.1002/gcc.2870010305. PMID 1964582. S2CID 31576324.
• Shetty KT (Dec 1990). "Phosphoserine phosphatase of human brain: partial purification, characterization, regional distribution, and effect of certain modulators including psychoactive drugs". Neurochemical Research. 15 (12): 1203–10. doi:10.1007/BF01208581. PMID 1965857. S2CID 24831337.
• Novelli G, Dallapiccola B (1989). "Gene dosage studies regionally assign the phosphoserine phosphatase gene to 7p15.1 or 2". Annales de Génétique. 31 (3): 195–6. PMID 2851960.
• Moro-Furlani AM, Turner VS, Hopkinson DA (May 1980). "Genetical and biochemical studies on human phosphoserine phosphatase". Annals of Human Genetics. 43 (4): 323–33. doi:10.1111/j.1469-1809.1980.tb01566.x. PMID 6249179. S2CID 13270060.
• Sparkes RS, Mohandas T, Sparkes MC (1983). "The human phosphoserine phosphatase gene (PSP) is mapped to chromosome 7 by somatic cell genetic analysis". Cytogenetics and Cell Genetics. 35 (1): 70–1. doi:10.1159/000131840. PMID 6297855.
• Maruyama K, Sugano S (Jan 1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID 8125298.
• 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.
• Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, Suyama A, Sugano S (Oct 1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149.
• Collet JF, Stroobant V, Pirard M, Delpierre G, Van Schaftingen E (Jun 1998). "A new class of phosphotransferases phosphorylated on an aspartate residue in an amino-terminal DXDX(T/V) motif". The Journal of Biological Chemistry. 273 (23): 14107–12. doi:10.1074/jbc.273.23.14107. PMID 9603909.
• Collet JF, Stroobant V, Van Schaftingen E (Nov 1999). "Mechanistic studies of phosphoserine phosphatase, an enzyme related to P-type ATPases". The Journal of Biological Chemistry. 274 (48): 33985–90. doi:10.1074/jbc.274.48.33985. PMID 10567362.
• Peeraer Y, Rabijns A, Verboven C, Collet JF, Van Schaftingen E, De Ranter C (Jan 2002). "Purification, crystallization and preliminary X-ray diffraction analysis of human phosphoserine phosphatase". Acta Crystallographica Section D. 58 (Pt 1): 133–4. doi:10.1107/S0907444901017310. PMID 11752790.
• Kim HY, Heo YS, Kim JH, Park MH, Moon J, Kim E, Kwon D, Yoon J, Shin D, Jeong EJ, Park SY, Lee TG, Jeon YH, Ro S, Cho JM, Hwang KY (Nov 2002). "Molecular basis for the local conformational rearrangement of human phosphoserine phosphatase". The Journal of Biological Chemistry. 277 (48): 46651–8. doi:10.1074/jbc.M204866200. PMID 12213811.
• 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.
• Peeraer Y, Rabijns A, Collet JF, Van Schaftingen E, De Ranter C (Aug 2004). "How calcium inhibits the magnesium-dependent enzyme human phosphoserine phosphatase". European Journal of Biochemistry / FEBS. 271 (16): 3421–7. doi:10.1111/j.0014-2956.2004.04277.x. PMID 15291819.
• Ewing RM, Chu P, Elisma F, Li H, Taylor P, Climie S, McBroom-Cerajewski L, Robinson MD, O'Connor L, Li M, Taylor R, Dharsee M, Ho Y, Heilbut A, Moore L, Zhang S, Ornatsky O, Bukhman YV, Ethier M, Sheng Y, Vasilescu J, Abu-Farha M, Lambert JP, Duewel HS, Stewart II, Kuehl B, Hogue K, Colwill K, Gladwish K, Muskat B, Kinach R, Adams SL, Moran MF, Morin GB, Topaloglou T, Figeys D (2007). "Large-scale mapping of human protein-protein interactions by mass spectrometry". Molecular Systems Biology. 3 (1): 89. doi:10.1038/msb4100134. PMC 1847948. PMID 17353931.

External links

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