< 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 Human DLL1 Immunoassay is a 4.5 hour solid-phase ELISA designed to measure human DLL1 in cell culture supernates, serum, plasma, urine, and human milk. It contains NS0-expressed recombinant human DLL1 and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human DLL1 showed linear curves that were parallel to the standard curves obtained using the Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for naturally occurring human DLL1.
Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision.
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision.
The recovery of DLL1 spiked to 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 and/or spiked with high concentrations of DLL1 were serially diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Preparation and Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
DLL1 (Delta-like protein 1) is a transmembrane glycoprotein in the Delta/Serrate/Lag-2 (DSL) family of Notch ligands. It plays a role in central nervous system morphogenesis, intervertebral joint formation, inner ear hair cell development and patterning, and arteriogenesis. It regulates the homeostasis and differentiation of neural, pancreatic, and myogenic progenitor cells, T and B lymphocytes. DLL1 is overexpressed in a number of cancers and contributes to tumorigenesis. The extracellular region of DLL1 can be shed from the cell surface, and the intracellular domain can be cleaved by gamma-secretase to translocate to the nucleus and regulate gene transcription.