Key features and details
- Sensitivity: 7.767 ng/ml
- Range: 31.25 ng/ml - 1000 ng/ml
- Sample type: Plasma, Serum
- Detection method: Colorimetric
- Assay type: Sandwich (quantitative)
- Reacts with: Dog
Product nameCanine IgA ELISA Kit
See all IgA kits
Sample typeSerum, Plasma
Assay typeSandwich (quantitative)
Range31.25 ng/ml - 1000 ng/ml
Assay durationMultiple steps standard assay
Species reactivityReacts with: Dog
Abcam’s IgA Dog ELISA kit is a highly sensitive two-site enzyme linked immunoassay (ELISA) for the quantitative measurement of IgA in dog serum and plasma.
In this assay the IgA present in samples reacts with the anti-IgA antibodies which have been adsorbed to the surface of polystyrene microtiter wells. After the removal of unbound proteins by washing, anti-IgA antibodies conjugated with horseradish peroxidase (HRP), are added. These enzyme-labeled antibodies form complexes with the previously bound IgA. Following another washing step, the enzyme bound to the immunosorbent is assayed by the addition of a chromogenic substrate, 3,3’,5,5’-tetramethylbenzidine (TMB). The quantity of bound enzyme varies directly with the concentration of IgA in the sample tested; thus, the absorbance, at 450 nm, is a measure of the concentration of IgA in the test sample. The quantity of IgA in the test sample can be interpolated from the standard curve constructed from the standards, and corrected for sample dilution.
Storage instructionsStore at +4°C. Please refer to protocols.
Components 1 x 96 tests 100X HRP-conjugated anti-dog IgA antibody 1 x 150µl 20X Wash Buffer Concentrate 1 x 50ml 5X Diluent Concentrate 1 x 50ml Chromogen Substrate Solution 1 x 12ml Dog IgA Calibrator (Lyophilized) 1 vial Dog IgA ELISA Microplate 1 unit Stop Solution 1 x 12ml
RelevanceHuman IgA (immunoglobulin A) is a glycosylated protein of 160 kDa and is produced as a monomer or as a J chain linked dimer. Monomeric IgA constitutes 5-15 % of the serum immunoglobulins whereas dimeric IgA is localized to mucosa surfaces such as saliva, gastrointestinal secretion, bronchial fluids and milk. Mucosal IgA plays a major role in host defence by neutralising infectious agents at mucosal surfaces. The production is usually local and antigen specific IgA producing B cells can be found in regions under the lamina propria where they mature into dimeric IgA producing plasma cells. IgA deficiency is the most common immunodeficiency that may affect both serum and mucosal produced IgA. OR: The secretory component is a component of immunoglobulin A (IgA) which consists of a portion of the polymeric immunoglobulin receptor. Polymeric IgA binds to the polymeric immunoglobulin receptor on the basolateral surface of epithelial cells and is taken up into the cell via transcytosis. The receptor-IgA complex passes through the cellular compartments before being secreted on the luminal surface of the epithelial cells, still attached to the receptor. Proteolysis of the receptor occurs and the dimeric IgA molecule, along with the secretory component, are free to diffuse throughout the lumen.
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ab157699 has not yet been referenced specifically in any publications.