< 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.
The Quantikine Mouse Vitamin D BP Immunoassay is a 2.5 hour solid phase ELISA designed to measure mouse Vitamin D BP levels in cell culture supernates, tissue lysates, serum, plasma, and urine. It contains NS0-expressed recombinant mouse Vitamin D BP and antibodies raised against the recombinant factor. This immunoassay has been shown to quantitate the recombinant mouse Vitamin D BP accurately. Results obtained using natural mouse Vitamin D BP showed dose-response curves that were parallel to the standard curves obtained using the recombinant kit standards. These results indicate that this kit can be used to determine relative mass values for natural mouse Vitamin D BP.
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
The recovery of mouse Vitamin D BP spiked to three levels throughout the range of the assay was evaluated.
Average % Recovery
Cell Culture Media (n=4)
To assess the linearity of the assay, samples containing high concentrations of mouse Vitamin D BP 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: Vitamin D BP
Vitamin D binding protein (VitD BP), also known as DBP and Gc-globulin, is a 58 kDa glycoprotein that circulates at high concentration in the serum and serves as a carrier protein for vitamin D. The transport of vitamin D by VitD BP is important for the function of a wide variety of tissues. VitD BP binds both the 25(OH) and the hormonally active 1,25(OH)2 forms of vitamin D. VitD BP is primarily expressed in hepatocytes and to a lesser extent in the kidney. It delivers vitamin D into cells by Megalin-mediated endocytosis. A selectively deglycosylated form of VitD BP known as macrophage activating factor (MAF) blocks the angiogenic effects of FGF basic, VEGF, and Angiopoietin 2. VitD BP enhances the chemotaxis of monocytes and neutrophils to the activated complement component C5a or C5a des Arg (a C-terminally processed form of C5a). The chemotactic cofactor property of VitD BP is eliminated by binding to 1,25(OH)2 vitamin D, but it is not altered by binding to 25(OH) vitamin D or actin.
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