Human Eosinophil Peroxidase (EPX) ELISA Kit
Due to the possibility of mismatching between antigens from other origin and antibodies used in our kits (e.g., antibody targets conformational epitope rather than linear epitope), some native or recombinant proteins from other manufacturers may not be recognized by our products.
Principle of the Assay
The microtiter plate provided in this kit has been pre-coated with an antibody specific to EPX. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody preparation specific to EPX. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After the TMB substrate solution is added, only those wells that contain EPX, biotin-conjugated antibody, and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution, and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of EPX in the samples is then determined by comparing the O.D. of the samples to the standard curve.
For Use with serum, plasma, and cell culture supernatants. For Research Use Only. Not for use in diagnostic procedures.
Target Information
Mediates tyrosine nitration of secondary granule proteins in mature resting eosinophils. Shows significant inhibitory activity towards Mycobacterium tuberculosis H37Rv by inducing bacterial fragmentation and lysis.
GENE ID | 8288 |
SWISS PROT | P11678 |
SYNONYMS |
EPO; EPP; EPX-PEN; EPER |
Materials Supplied
Kit Components | 96 Wells Quantity/Size |
---|---|
Pre-coated, ready-to-use 96-well strip plate | 1 plate |
Plate sealer for 96 wells | 2 |
Standard |
2 tubes |
Diluent buffer | 1 bottle |
Detection Reagent A | 1 bottle |
Detection Reagent B | 1 bottle |
TMB Substrate | 1 tube |
Stop Solution | 1 tube |
Wash Buffer (30 ℅ concentrate) | 1 tube |
Product data sheet | 1 copy |
Storage
Storage | The TMB Substrate, Wash Buffer (30X concentrate), and the Stop Solution should be stored at 4°C upon receipt, while the other items should be stored at -20°C. |
Performance Characteristics
REPEATABILITY |
Intra-assay Precision (Precision within an assay): 3 samples with low, middle, and high-level EPX were tested 20 times on one plate, respectively. |
SENSITIVITY | The minimum detectable dose was 0.51ng/mL. |
ASSAY RANGE | 1.25-80ng/mL |
SPECIFICITY | This assay has high sensitivity and excellent specificity for the detection of EPX. No significant cross-reactivity or interference between EPX and analogs was observed. Note: Limited by current skills and knowledge, it is impossible to perform all possible cross-reactivity detection tests between EPX and all analogs, therefore, cross reactivity may still exist. |