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Biospes

SKU:BEK1035

Human CXCL9 ELISA Kit

Human CXCL9 ELISA Kit

Regular price $500.00 USD
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Application: For quantitative detection of CXCL9 in human serum, plasma, body fluids, tissue lysates or cell culture supernatants.

Introduction: Chemokine (C-X-C motif) ligand 9 (CXCL9) is a small cytokine belonging to the CXC chemokine family that is also known as Monokine induced by gamma interferon (MIG). CXCL9 is a T-cell chemoattractant, which is induced by IFN-γ. It is closely related to two other CXC chemokines called CXCL10 and CXCL11, whose genes are located near the gene for CXCL9 on human chromosome 4. CXCL9, CXCL10 and CXCL11 all elicit their chemotactic functions by interacting with the chemokine receptor CXCR3.

Principle of the Assay: This kit was based on sandwich enzyme-linked immune-sorbent assay technology. Anti-CXCL9 polyclonal antibody was pre-coated onto 96-well plates. And the biotin conjugated anti-CXCL9 polyclonal antibody was used as detection antibodies. The standards, test samples and biotin conjugated detection antibody were added to the wells subsequently, and wash with wash buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with wash buffer. TMB substrates were used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the CXCL9 amount of sample captured in plate. Read the O.D. absorbance at 450nm in a microplate reader, and then the concentration of CXCL9 can be calculated.

Storage and Expiration: Store at 2-8℃ for 6 months, or at -20℃ for 12 months.

Range: 31.2 pg/ml - 2000 pg/ml

Sensitivity: < 2 pg/ml
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