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Details on Person UniProt:P78330 PSPH

Class:IdReferenceGeneProduct:64334
_chainChangeLogchain:1-225 added on Fri February 6 2015
_displayNameUniProt:P78330 PSPH
_timestamp2025-02-21 19:12:28
chainchain:1-225
checksumBD5D72697747FA30
commentFUNCTION Catalyzes the last irreversible step in the biosynthesis of L-serine from carbohydrates, the dephosphorylation of O-phospho-L-serine to L-serine (PubMed:12213811, PubMed:14673469, PubMed:15291819, PubMed:25080166, PubMed:9222972). L-serine can then be used in protein synthesis, to produce other amino acids, in nucleotide metabolism or in glutathione synthesis, or can be racemized to D-serine, a neuromodulator (PubMed:14673469). May also act on O-phospho-D-serine (Probable).CATALYTIC ACTIVITY O-phospho-L-serine + H2O = L-serine + phosphateCATALYTIC ACTIVITY O-phospho-D-serine + H2O = D-serine + phosphateCOFACTOR Binds 1 Mg(2+) ion per subunit.ACTIVITY REGULATION Inhibited by calcium ions.PATHWAY Amino-acid biosynthesis; L-serine biosynthesis; L-serine from 3-phospho-D-glycerate: step 3/3.SUBUNIT Homodimer.INTERACTION The disease is caused by variants affecting the gene represented in this entry.SIMILARITY Belongs to the HAD-like hydrolase superfamily. SerB family.
descriptionrecommendedName: fullName evidence="12"Phosphoserine phosphatase shortName evidence="12"PSP shortName: PSPase ecNumber evidence="1 3 4 5 6 8"3.1.3.3 alternativeName: fullName evidence="10"L-3-phosphoserine phosphatase alternativeName: O-phosphoserine phosphohydrolase
geneNamePSPH
identifierP78330
isSequenceChangedFALSE
keyword3D-structure
Acetylation
Amino-acid biosynthesis
Cytoplasm
Disease variant
Hydrolase
Magnesium
Metal-binding
Proteomics identification
Reference proteome
Serine biosynthesis
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9939033] Weiser, Joel, 2025-02-21
namePSPH
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:9002637] ENSEMBL:ENSG00000146733 PSPH [Homo sapiens]
secondaryIdentifierSERB_HUMAN
B2RCR5
Q7Z3S5
sequenceLength225
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:977331] PSPH [cytosol] [Homo sapiens]
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No pathways have been reviewed or authored by UniProt:P78330 PSPH (64334)