Factor-related Apoptosis Ligand (FASL) BioAssay(TM) ELISA Kit (Human)

This protein is the ligand for FAS. Both are transmembrane proteins. Interaction of FAS with this ligand is critical in triggering apoptosis of some types of cells such as lymphocytes. Defects in this gene may be related to some cases of systemic lupus erythematosus (SLE). Sample Type: Serum, plasma, cell culture supernates, Intended Use: For the quantitative determination of human factor-related apoptosis ligand (FASL) concentrations in serum, plasma, cell culture supernates. Sensitivity: 7.81pg/ml, Range: 31.25-2000pg/ml, Specificity: This assay has high sensitivity and excellent specificity for detection of human FASL. No significant cross-reactivity or interference between human FASL and analogues was observed. Test Principle: This BioAssay(TM) employs the quantitative sandwich enzyme immunoassay technique. Antibody specific for FASL has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and any FASL present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for FASL is added to the wells. After washing, avidin conjugated Horseradish Peroxidase (HRP) is added to the wells. Following a wash to remove any unbound avidin-enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of FASL bound in the initial step. The color development is stopped and the intensity of the color is measured. Kit Components: Assay plate (12x8 coated microwells), 1x96 wells, Standard (Freeze dried), 2x vials, Biotin-antibody (100X), 1x120ul, HRP-avidin (100X), 1x120ul, Biotin-antibody Diluent, 1x15ml, HRP-avidin Diluent, 1x15ml, Sample Diluent, 1x50ml, Wash Buffer (25X), 1x20ml, TMB Substrate, 1x10ml, Stop Solution, 1x10ml, Adhesive Strip (For 96 wells), 4x strips, Instruction manual, Storage and Stability: Store powder at 4°C liquid at -20°C. Store other components at 4°C. Stable for at least 6 months For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.