Recombinant Mouse Tyrosine-protein phosphatase non-receptor type 22 (Ptpn22), partial

Code CSB-YP019036MO
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Source Yeast
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Code CSB-EP019036MO
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Source E.coli
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Code CSB-EP019036MO-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP019036MO
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Source Baculovirus
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Code CSB-MP019036MO
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Source Mammalian cell
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Product Details

>85% (SDS-PAGE)
Target Names
Uniprot No.
Alternative Names
Ptpn22; Ptpn8; Tyrosine-protein phosphatase non-receptor type 22; EC; Hematopoietic cell protein-tyrosine phosphatase 70Z-PEP; PEST-domain phosphatase; PEP
Mus musculus (Mouse)
Protein Length
Tag Info
The following tags are available.
N-terminal His-tagged
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Please contact us to get it.

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Target Background

Acts as negative regulator of T-cell receptor (TCR) signaling by direct dephosphorylation of the Src family kinases LCK and FYN, ITAMs of the TCRz/CD3 complex, as well as ZAP70, VAV, VCP and other key signaling molecules. Associates with and probably dephosphorylates CBL. Dephosphorylates LCK at its activating 'Tyr-394' residue. Dephosphorylates ZAP70 at its activating 'Tyr-492' residue. Dephosphorylates the immune system activator SKAP2. Positively regulates toll-like receptor (TLR)-induced type 1 interferon production. Promotes host antiviral responses mediated by type 1 interferon. Regulates NOD2-induced pro-inflammatory cytokine secretion and autophagy. Dephosphorylates phospho-anandamide (p-AEA), an endocannabinoid to anandamide (also called N-arachidonoylethanolamide).
Gene References into Functions
  1. these findings highlight PTPN22 as a novel regulator of dectin-1 signals, providing a link between genetically conferred perturbations of innate receptor signaling and the risk of autoimmune disease PMID: 28948613
  2. PTPN22 role in CD8-positive t cells activation. PMID: 29116089
  3. Here we show that mice deficient in PTPN22 resist chronic viral infection with lymphocytic choriomeningitis virus clone 13. The numbers and function of viral-specific CD4 T lymphocytes is greatly enhanced, whereas expression of the IFNbeta-induced IL-2 repressor, cAMP-responsive element modulator is reduced. PMID: 27799548
  4. we have discovered that inactivation of Ptpn22 or Mll3 greatly accelerated PI3K-driven mammary tumorigenesis PMID: 27653681
  5. Our findings, for the first time, illustrate the indirect impact of the 619 Arg > Trp polymorphic PTPN22 on T cells activation, mediated by polymorphic effects on macrophages and indicate a possible role of PTPN22 in cytoskeleton re-arrangement. PMID: 28237724
  6. PTPN22 has dual roles in T-cell clonal expansion and effector function; whereas it promotes antigen-driven responses during acute infection by positively regulating interferon signaling in T cells, PTPN22 inhibits homeostatic-driven proliferation. PMID: 27725666
  7. PTPN22 colocalized with its substrates at the leading edge of cells migrating on surfaces coated with the LFA-1 ligand intercellular adhesion molecule-1 (ICAM-1). PMID: 27703032
  8. PTPN22 is dispensable for dendritic cell antigen processing and promotion of T-cell activation by dendritic cells. PMID: 29040339
  9. collective murine and human data provide an alternative model for how the PTPN22 C1858T variant promotes self-reactivity into the naive B cell repertoire and, consequently, is likely to increase the probability of triggering autoimmune B cell responses in at-risk individuals PMID: 28801357
  10. PTPN22 deficiency resulted in pronounced colitis, increased NLRP3 phosphorylation, but reduced levels of mature IL-1beta. PMID: 27043286
  11. We show that PTPN22 deficiency enhanced T-cell receptor-mediated signaling in SKG Ptpn22-/- thymocytes and that the early stages of thymus positive selection were partially restored in SKG Ptpn22-/- mice. PMID: 27288531
  12. this study shows that neutrophil effector functions are reduced in Ptpn22-/- neutrophils, and that Ptpn22-/- mice are protected from immune complex-mediated arthritis PMID: 27807193
  13. report demonstrates enhanced T1D in a mouse modeling human PTPN22(R620W) and the utility of CRISPR-Cas9 for direct genetic alternation of NOD mice. PMID: 27207523
  14. our data suggest a critical role for GITR in Treg cell homeostasis and indicate that Ptpn22 independently affects the differentiation status of Treg cells and their homeostatic behavior PMID: 26810223
  15. lack of PTPN22 strengthens transplant tolerance to pancreatic islets by expanding both FOXP3(+) Treg and Tr1 cells PMID: 25748328
  16. Ptpn22 and Cd2 Variations Are Associated with Altered Protein Expression and Susceptibility to Type 1 Diabetes PMID: 26438525
  17. T cell activation modulates the expression of PTPN22 and additional inhibitory phosphatases. PMID: 25715232
  18. PTPN22 is an inhibitor of PAD-4 and protein citrullination. PMID: 26019128
  19. Autoimmunity-associated protein tyrosine phosphatase PEP negatively regulates IFN-alpha receptor signaling. PMID: 26077719
  20. lack of Ptpn22 exacerbates virally-induced type 1 diabetes in lymphocytic choriomeningitis virus mice, while maintaining higher number of Treg cells in the antiviral response in the blood and spleen but not in the pancreatic lymph nodes PMID: 25513733
  21. Data suggest that a gain-of-function of human PTPN22 transgene encoding the tyrosine phosphatase LYP is unlikely to increase risk of autoimmunity through alterations of thymic selection. PMID: 24498279
  22. PTPN22 limited signaling via the T cell antigen receptor (TCR) by weak agonists and self antigens while not impeding responses to strong agonist antigens. PMID: 25108421
  23. data demonstrate that PTPN22 controls NOD2 signaling, and loss of PTPN22 renders monocytes more reactive towards bacterial products, what might explain the association of PTPN22 variants with IBD pathogenesis PMID: 23991106
  24. these findings demonstrate the importance of cell type-specific PTPN22 activity on regulation of antibody production. PMID: 24453256
  25. Our data not only demonstrate a critical role of PTPN22 in regulating macrophage polarization but also provide a molecular explanation for the protective effect of the C1858T SNP in Crohn's disease PMID: 23913970
  26. Data indicate that Ptpn22 regulates TLR-driven Type 1 interferon production in myeloid cells. PMID: 23871208
  27. results demonstrate that Pep overexpression in T cells attenuates autoimmune diabetes in NOD mice by preferentially modulating TCR signaling-mediated functions in diabetogenic T cells but not in T(regs) PMID: 23752610
  28. the disease-associated PTPN22 variant promotes systemic autoimmunity in murine models PMID: 23619366
  29. Lack of the phosphatase PTPN22 increases adhesion of murine regulatory T cells to improve their immunosuppressive function PMID: 23193160
  30. Data suggest that an amino acid substitution mutation in Ptpn22 (R620W) resulting in a type 1 diabetes model (previously thought to be a loss-of-function mutation) is, in fact, a gain-of-function mutation. PMID: 23193190
  31. An increase in regulatory T cells (Tregs) persisted in the periphery and could play a key part in reduced severity observed in PTPN22-deficient mice with experimental autoimmune encephalomyelitis, a mouse model of multiple sclerosis. PMID: 22539785
  32. mice expressing the Ptpn22 Lyp variant homolog Pep619W manifest thymic and splenic enlargement accompanied by increases in T-cell number, activation and positive selection and in dendritic- and B-cell activation. PMID: 21841778
  33. Our results do not show that the PTPN22, STAT4 and TRAF1/C5 gene polymorphisms may confer a direct risk of cardiovascular disease disease in patients with rheumatoid arthritis. PMID: 20822712
  34. central role for PEP in negatively regulating specific aspects of T cell development and function PMID: 14752163
  35. Pep(-/-) T cells in the context of a susceptible microenvironment can drive hyperresponsive CD45 E613R B cells to break tolerance. PMID: 19299707

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Subcellular Location
Protein Families
Protein-tyrosine phosphatase family, Non-receptor class 4 subfamily
Tissue Specificity
Brain (at protein level). Spleen, thymus, lymph node and bone marrow.
Database Links

KEGG: mmu:19260

STRING: 10090.ENSMUSP00000029433

UniGene: Mm.395

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