Hepatitis B Virus X Ag, Hbxag (HBxAg) ELISA Kit for Human

Intended Uses: This kit is for the qualitative detection of human Helicobacter pylori cytotoxin-associated gene A protein IgG (also known as HP-CagA-IgG) in serum, plasma, cell culture supernates, cell lysates, tissue homogenates.

Principle of the Assay: This kit is based on a qualitative reverse phase enzyme immuno assay technique. The microtiter plate has been pre-coated with a target monoclonal antibody. Positive/Negative Controls or samples are added to the wells and incubate. Antibodies in the samples bind to the antigen on the plate. Unbound antibody is washed away during a washing step. A Horseradish Peroxidase (HRP) conjugated detection antibody is then added and incubate. Unbound avidin-HRP is washed away during a washing step. TMB substrate is then added and color develops. The reaction is stopped by addition of acidic stop solution and color changes into yellow that can be measured at 450 nm. The OD of an unknown sample can then be compared to the OD of the positive and negative controls in order to determine the presence of HP-CagA-IgG.

Small volumes of HBxAg elisa kit vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

MBS166584 is a ready-to-use microwell, strip plate ELISA (enzyme-linked immunosorbent assay) Kit for analyzing the presence of the hepatitis B virus X Ag, HBxAg, ELISA Kit target analytes in biological samples. The concentration gradients of the kit standards or positive controls render a theoretical kit detection range in biological research samples containing HBxAg. The ELISA analytical biochemical technique of the MBS166584 kit is based on HBxAg antibody-HBxAg antigen interactions (immunosorbency) and an HRP colorimetric detection system to detect HBxAg antigen targets in samples. The ELISA Kit is designed to detect native, not recombinant, HBxAg. Appropriate sample types may include undiluted body fluids and/or tissue homogenates, secretions. Quality control assays assessing reproducibility identified the intra-assay CV (%) and inter-assay CV(%).