Soluble Protein 100B (S-100B) BioAssay(TM) ELISA Kit (Human)

This protein is a member of the S100 family of proteins containing 2 EF-hand calcium-binding motifs. S100 proteins are localized in the cytoplasm and/or nucleus of a wide range of cells, and involved in the regulation of a number of cellular processes such as cell cycle progression and differentiation. S100 genes include at least 13 members which are located as a cluster on chromosome 1q21, however, this gene is located at 21q22.3. This protein may function in Neurite extension, proliferation of melanoma cells, stimulation of Ca2+ fluxes, inhibition of PKC-mediated phosphorylation, astrocytosis and axonal proliferation, and inhibition of microtubule assembly. Chromosomal rearrangements and altered expression of this gene have been implicated in several neurological, neoplastic, and other types of diseases, including Alzheimer s disease, Down s syndrome, epilepsy, amyotrophic lateral sclerosis, melanoma, and type I diabetes. Sample Type: Serum, plasma, tissue homogenates, cerebrospinal fluid (CSF), Intended Use: For the quantitative determination of human soluble protein-100B (S-100B) concentrations in serum, plasma, tissue homogenates, cerebrospinal fluid (CSF). Sensitivity: 19.5pg/ml, Range: 78-5000pg/ml, Specificity: This assay has high sensitivity and excellent specificity for detection of human S-100B. No significant cross-reactivity or interference between human S-100B and analogues was observed. Test Principle: This BioAssay(TM) employs the quantitative sandwich enzyme immunoassay technique. Antibody specific for S-100B has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and any S-100B present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for S-100B 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 S-100B 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 vials, 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.