Human CD44 ELISA Assay
The Human CD44 ELISA Assay is For Research Use Only
Size: 1×96 wells
Sensitivity: 0.13ng /ml
Dynamic Range: 0.31 ng/ml – 10 ng/ml
Incubation Time: 2h 10 min
Sample Type: Serum, Plasma, Cell Culture
Sample Size: 100 µl
Alternative Name: Phagocytic Glycoprotein-1, Pgp-1
Specimen collection, processing & storage
Cell culture supernatants, serum, plasma or other biological samples will be suitable for use in the assay. Remove serum from the clot or red cells, respectively, as soon as possible after clotting and separation.
Cell culture supernatants:
Remove particulates and aggregates by spinning at approximately 1000 x g for 10 min.
Avoid any unintentional stimulation of the cells by the procedure. Use pyrogen/endotoxin free collecting tubes. Serum should be removed rapidly and carefully from the red cells after clothing. For that, after clothing, centrifuge at approximately 1000 x g for 10 min and remove serum.
EDTA, citrate and heparin plasma can be assayed. Spin samples at 1000 x g for 30 min to remove particulates. Harvest plasma.
If not analyzed shortly after collection, samples should be aliquoted (250-500μl) to avoid repeated freeze-thaw cycles and stored frozen at –70°C. Avoid multiple freeze-thaw cycles of frozen specimens.
The CD44 Kit is a solid phase sandwich Enzyme Linked-Immuno-Sorbent Assay (ELISA). A monoclonal antibody specific for CD44 has been coated onto the wells of the microtiter strips provided. Samples, including standards of known CD44 concentrations and unknowns are pipetted into these wells. During the first incubation, the CD44 antigen, standards and zeros are bound this is followed by a separate incubation where the biotinylated monoclonal antibody specific for CD44 is added. After washing, the enzyme (streptavidin-peroxydase) is added. After incubation and washing to remove all the unbound enzyme, a substrate solution is added to induce a coloured reaction product. The intensity of this coloured product is directly proportional to the concentration of CD44 present in the samples.
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