PTPRS

Receptor-type tyrosine-protein phosphatase S, also known as R-PTP-S, R-PTP-sigma, or PTPσ, is an enzyme that in humans is encoded by the PTPRS gene.^[5][6][7]

PTPRS
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 2FH7, 2YD2, 2YD3, 2YD9, 4BPC, 4PBX
Identifiers
Aliases	PTPRS, PTPSIGMA, protein tyrosine phosphatase, receptor type S, R-PTP-S, R-PTP-sigma, protein tyrosine phosphatase receptor type S
External IDs	OMIM: 601576; MGI: 97815; HomoloGene: 20626; GeneCards: PTPRS; OMA:PTPRS - orthologs
Gene location (Human) Chr. Chromosome 19 (human)[1] Band 19p13.3 Start 5,158,495 bp[1] End 5,340,812 bp[1]
Gene location (Mouse) Chr. Chromosome 17 (mouse)[2] Band 17 D|17 29.32 cM Start 56,719,426 bp[2] End 56,783,483 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in ganglionic eminence sural nerve ventricular zone gastric mucosa stromal cell of endometrium left uterine tube right hemisphere of cerebellum right ovary right lung right coronary artery Top expressed in dentate gyrus of hippocampal formation granule cell ganglionic eminence ventricular zone renal corpuscle superior frontal gyrus Rostral migratory stream primary visual cortex genital tubercle subiculum CA3 field More reference expression data BioGPS More reference expression data
Gene ontology Molecular function phosphatase activity protein binding hydrolase activity phosphoprotein phosphatase activity protein tyrosine phosphatase activity heparin binding chondroitin sulfate binding heparan sulfate proteoglycan binding Cellular component integral component of membrane integral component of plasma membrane extracellular exosome membrane plasma membrane integral component of synaptic vesicle membrane integral component of postsynaptic density membrane postsynaptic density cell junction axon synaptic vesicle membrane cytoplasmic vesicle cell projection neuron projection perikaryon synapse postsynaptic membrane Schaffer collateral - CA1 synapse glutamatergic synapse integral component of presynaptic membrane Biological process cell adhesion dephosphorylation protein dephosphorylation negative regulation of interferon-alpha production negative regulation of interferon-beta production negative regulation of toll-like receptor 9 signaling pathway negative regulation of neuron projection development spinal cord development cerebellum development hippocampus development cerebral cortex development corpus callosum development negative regulation of axon extension peptidyl-tyrosine dephosphorylation negative regulation of collateral sprouting negative regulation of axon regeneration negative regulation of dendritic spine development establishment of endothelial intestinal barrier modulation of chemical synaptic transmission synapse organization regulation of postsynaptic density assembly synaptic membrane adhesion Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 5802 19280 Ensembl ENSG00000105426 ENSMUSG00000013236 UniProt Q13332 B0V2N1 RefSeq (mRNA) NM_002850 NM_130853 NM_130854 NM_130855 NM_001394011 NM_001394012 NM_001394013 NM_001252453 NM_001252455 NM_001252456 NM_011218 RefSeq (protein) NP_002841 NP_570923 NP_570924 NP_570925 NP_001239382 NP_001239384 NP_001239385 NP_035348 Location (UCSC) Chr 19: 5.16 – 5.34 Mb Chr 17: 56.72 – 56.78 Mb PubMed search [3] [4]
Wikidata
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Function

The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP contains an extracellular region, a single transmembrane segment and two tandem intracytoplasmic catalytic domains (D1 and D2), and thus represents a receptor-type PTP. D1 is catalytically active, while D2 is catalytically inactive. The extracellular region of this protein is composed of multiple Ig-like and fibronectin type III-like domains. Rem2 signaling affects neuronal structure and function in part by regulation of gene expression. Molecular and Cellular NeuroscienceStudies of the similar gene in mice suggested that this PTP may be involved in cell-cell interaction, primary axonogenesis, and axon guidance during embryogenesis. This PTP has been also implicated in the molecular control of adult nerve repair. Four alternatively spliced transcript variants, which encode distinct proteins, have been reported.^[7]

Clinical significance

A PTPRS protein mimetic may improve muscular and bladder control in rats with spinal cord injuries.^[8][9]

Interactions

PTPRS has been shown to interact with:

• chondroitin sulphate proteoglycans,^[8]
• PTPRD,^[10] glial-derived and
• liprin-alpha-1.^[6][11]
• NME2.^[12]