| Field | Specification |
|---|---|
| Target | |
| Alternative names | Tyrosine-protein phosphatase non-receptor type 22; Hematopoietic cell protein-tyrosine phosphatase 70Z-PEP; PEST-domain phosphatase; PEP; Ptpn22; Ptpn8 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E. coli-derived mouse PTPN22 recombinant protein (Position: M1-Q309). |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody detects tyrosine-protein phosphatase non-receptor type 22 (gene Ptpn22) in human, mouse and rat samples and is validated for ELISA, IHC and Western blot. The predicted molecular weight is 89.7 kDa, and the supplier reports an observed band at about 92 kDa.
LYP (PTPN22; PEP in mouse) is a tyrosine phosphatase expressed in immune cells. It limits T-cell receptor signaling by removing activating phosphates from LCK, FYN, ZAP70 and related molecules, and a common PTPN22 variant is a well-known risk factor for several autoimmune diseases.
| Target | Tyrosine-protein phosphatase non-receptor type 22 (gene Ptpn22; UniProt P29352, mouse) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4; 0.05 mg NaN3 |
| Calculated MW | 89.7 kDa |
| Observed MW | 92 kDa |
| Storage | As supplied: −20 °C for up to 12 months from receipt. After reconstitution: 4 °C for up to 1 month, or aliquot and keep at −20 °C for up to 6 months. Avoid repeated freeze–thaw cycles. |
Validated Applications
| Western blot | 0.1–0.5 µg/mL |
|---|---|
| IHC (paraffin sections) | 0.5–1 µg/mL |
| ELISA | 0.1–0.5 µg/mL |
Samples with a confirmed band (WB): rat thymus tissue, human SW579 cells, human HepG2 cells, human placenta tissue, human HeLa cells, human SW620 cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 5–20% gradient SDS-PAGE under reducing conditions, 50 µg lysate per lane, transfer to nitrocellulose membrane, blocking in 5% non-fat milk, primary antibody at 0.5 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:10000, ECL detection.
Samples with confirmed staining (IHC): mouse spleen tissue, rat lymphaden tissue.
Recommended antigen retrieval: heat-mediated, in TE buffer (pH 9.0); citrate buffer (pH 6.0) can be used instead.
Conditions in the example images (IHC): heat-mediated antigen retrieval in citrate buffer (pH 6).
Immunogen
Recombinant mouse PTPN22 fragment (Met1–Gln309), expressed in E. coli.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places tyrosine-protein phosphatase non-receptor type 22 in the cytoplasm. Tissue expression noted by UniProt (mouse): Brain (at protein level). The samples tested by the supplier (listed above) are a practical starting point for positive controls.
Safety
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
