Human AGP ELISA Assay


The Human AGP ELISA Assay is a highly sensitive two-site enzyme linked immunoassay (ELISA) for measuring Alpha 1-Acid Glycoprotein in biological fluids in human.

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Human AGP ELISA Assay

The Human AGP ELISA Assay is For Research Use Only

Size: 1×96 wells
Sensitivity: 1.089 ng/ml
Standard Range: 5 – 320 ng/ml
Incubation Time: 65 minutes
Sample Type: Human Biological Fluids
Sample Size: 100 µl
Alternative Names: Human Alpha 1-Acid Glycoprotein ELISA, Alpha 1-Acid Glycoprotein ELISA

Assay Principle

The principle of the double antibody sandwich ELISA is represented in Figure 1. In this assay the Alpha 1-Acid Glycoprotein present in samples reacts with the anti-Alpha 1-Acid Glycoprotein antibodies which have been adsorbed to the surface of polystyrene microtitre wells. After the removal of unbound proteins by washing, anti-AGP antibodies conjugated with horseradish peroxidase (HRP), are added. These enzyme-labeled antibodies form complexes with the previously bound AGP. 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 AGP in the sample tested; thus, the absorbance, at 450 nm, is a measure of the concentration of AGP in the test sample. The quantity of AGP in the test sample can be interpolated from the standard curve constructed from the standards, and corrected for sample dilution.

Blood should be collected by venipuncture. The serum should be separated from the cells after clot formation by centrifugation. For plasma samples, blood should be collected into a container with an anticoagulant and then centrifuged. Care should be taken to minimize hemolysis, excessive hemolysis can impact your results. Assay immediately or aliquot and store samples at -20°C. Avoid repeated freeze-thaw cycles.

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Additional Information

Assay Background

Acute phase proteins are plasma proteins which increase in concentration following infection, inflammation or trauma. The first acute phase protein to be recognized was discovered in humans by Tillet and Frances in 19301. Alpha-1-glycoprotein is a major acute phase reactant, both in man and in rat. Its concentration in blood plasma is elevated during acute inflammation, such as rheumatoid arthritis, bacterial infections, etc, and can be used for the diagnosis of inflammatory conditions.

Typical Standard Curve

Human AGP ELISA Assay

Package Inserts

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