| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | ERP70; ERP72; protein disulfide isomerase A4|protein disulfide isomerase related protein (calcium-binding protein; intestinal-related)|protein disulfide isomerase-associated 4 |
| Product Type | |
| Sensitivity | |
| UniProt # |
Product Overview
Sandwich ELISA KitProtein Disulfide Isomerase A4is an enzyme in the endoplasmic reticulum in eukaryotes or periplasmic space of prokaryotes that catalyzes the formation and breakage of disulfide bonds between cysteine residues within proteins as they fold. This allows proteins to quickly find the correct arrangement of disulfide bonds in their fully-folded state, and therefore the enzyme acts to catalyze protein folding. The reduced (dithiol) form of PDI is able to catalyse a reduction of mispaired thiol residues…
Assay Principle
This assay employs a two-site sandwich ELISA to quantitate PDIA4 in samples. An antibody specific for PDIA4 has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyPDIA4 present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for PDIA4 is added to the wells. After washing, Streptavidin conjugated Horseradish Peroxidase (HRP) is added to the wells. Following a wash to remove any unbound avid…
Performance Data
| Assay Type | Sandwich ELISA |
|---|---|
| Detection Method | Sandwich ELISA |
| Detection Range | 0.312-20 ng/mL |
Stability & Storage
The stability of ELISA kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. The loss rate was determined by accelerated thermal degradation test. Keep the kit at 37°C for 4 and 7 days, and compare O.D.values of the kit kept at 37°C with that of at recommended temperature. (referring from China Bio…
Safety & Handling
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This is a sandwich ELISA kit. It employs a capture antibody pre-coated on the microplate surface and a biotin-conjugated detection antibody. After incubation with streptavidin-HRP and TMB substrate, a colorimetric signal proportional to analyte concentration is generated and measured at 450 nm.
The linear detection range of this kit is 0.312-20 ng/mL. Samples exceeding the upper limit must be diluted prior to testing. Samples below the lower limit may require concentration steps. Always verify that interpolated values fall within the linear portion of the standard curve.
This kit is validated for use with serum and plasma samples. Cell culture supernatants and tissue homogenates may also be tested after appropriate preparation. Avoid grossly hemolyzed, lipemic, or bacterially contaminated samples, as these may produce inaccurate results.
A microplate reader capable of measuring absorbance at 450 nm (with a 540–570 nm reference wavelength) is required. A plate washer is recommended for consistent washing steps. Calibrated micropipettes, incubator (37°C), and standard laboratory consumables are also needed.
The stability of ELISA kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. The loss rate was determined by accelerated thermal degradation test. Keep the kit at 37°C for 4 and 7 days, and compare O… Prepare working reagents fresh for each run. Do not freeze kit components unless specifically directed in the insert.
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