| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Alternative Names | PTPN22; LYP; LYP1; LYP2; PEP; PTPN8; PEST-domain phosphatase; lymphoid-specific protein tyrosine phosphatase; protein tyrosine phosphatase; non-receptor type 8 |
| Assay Time | |
| Assay Type | |
| Detection Method | |
| Gene ID | |
| Product Type | |
| Reactivity | |
| Sample Type(s) | Cell culture supernatants, Serum, Plasma, Other biological fluids |
| Shipping | |
| Storage |
Features & Benefits
Human Tyrosine-protein phosphatase non-receptor type 22 (PTPN22) ELISA Kit has high sensitivity and excellent specificity for detection of Human PTPN22. No significant cross-reactivity or interference between Human PTPN22 and analogues was observed.
Background
Protein tyrosine phosphatase, non-receptor type 22 (lymphoid) is located on the short arm of Chromosome 1 near the telomere (1p13.2) on the Crick (minus) strand. It is 57,898 bases in length and encodes a protein of 807 amino acids (molecular weight 91,705 Da). There are 24 exons in the gene and 21 transcript variants encoding 10 distinct proteins are known. The proteins are located in the cytoplasm.
This gene encodes a protein tyrosine phosphatase which is expressed primarily in lymphoid tissues. This enzyme associates with the molecular adapter protein CBL and may be involved in regulating CBL function in the T cell receptor signaling pathway.
This Tyrosine-protein phosphatase non-receptor type 22 (PTPN22) ELISA kit is validated for use with Cell culture supernatants, Serum, Plasma, Other biological fluids. Samples should be collected, processed, and stored correctly to preserve analyte integrity — avoid repeated freeze-thaw cycles and centrifuge to remove particulates before use. Dilute samples exceeding the kit's detection range using the supplied assay diluent. Hemolytic, icteric, or lipemic samples may affect assay performance and should be tested with caution.
This is a sandwich ELISA kit employing an HRP (horseradish peroxidase)-conjugated secondary antibody paired with a TMB (3,3′,5,5′-tetramethylbenzidine) colorimetric substrate. In the sandwich format, the target analyte Tyrosine-protein phosphatase non-receptor type 22 (PTPN22) captured on the microplate surface is detected by the conjugated antibody, generating a colorimetric signal proportional to analyte concentration. The reaction is stopped and absorbance measured at 450 nm on a standard microplate reader.
The complete protocol, from sample addition to final plate reading, requires approximately 3–5 hours. This includes two incubation periods (analyte binding and detection antibody steps), intermediate wash cycles to remove unbound material, 15–30 minutes of TMB substrate development, and final stop-solution addition before absorbance reading. Exact timing will vary with experience level and the number of samples processed in parallel.
Required equipment: (1) a microplate spectrophotometer capable of reading absorbance at 450 nm (reference wavelength 540–570 nm recommended for background correction); (2) precision single-channel or multichannel pipettes; (3) a plate washer or multichannel aspirator; (4) a microcentrifuge for sample clarification; and (5) a 37°C incubator or stable room-temperature environment. No fluorescence or luminescence reader is required — standard colorimetric plate readers are fully compatible with this kit.
This ELISA kit is formally validated for Human. Cross-reactivity with species not listed in the specification has not been independently characterized. Variability in protein sequence homology across species means that performance in unlisted species cannot be guaranteed without additional validation. For cross-species detection requirements or non-standard sample matrices, please contact BioHippo support or refer to the manufacturer's technical team for guidance.
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