< 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested.
No significant interference observed with available related molecules.
QC189 , Quantikine Immunoassay Control Set 855 for Human Calbindin D -
The Quantikine Human Calbindin D Immunoassay is a 4.5 hour solid phase ELISA designed to measure human Calbindin D in tissue lysates and urine. It contains E. coli-expressed recombinant human Calbindin D and antibodies raised against the recombinant factor. Natural human Calbindin D showed dose-response curves that were parallel to the standard curves obtained using the recombinant Quantikine kit standards. These results indicate that this kit can be used to determine relative levels of natural human Calbindin D.
Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in twenty separate assays to assess inter-assay precision. Assays were performed by at least three technicians using two lots of components
Tissue Lysates, Urine
The recovery of human Calbindin D spiked to levels throughout the range of the assay was evaluated.
Average % Recovery
To assess the linearity of the assay, samples containing high concentrations of human Calbindin D were serially diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay. Samples were diluted prior to assay.
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: Calbindin D
Calbindin D is a highly conserved vitamin D-dependent cytoplasmic protein in the EF-hand calcium binding protein family that includes calmodulin, parvalbumin, troponin C, and S100. Calbindin-D is widely expressed and regulates calcium homeostasis. Calbindin-D protects neurons from excitotoxic and apoptotic cell death by buffering excess calcium.
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