Human Duffy Blood Group Chemokine Receptor (DARC) ELISA Kit
Due to the possibility of mismatching between antigens from other origin and antibodies used in our kits (e.g., antibody targets conformational epitope rather than linear epitope), some native or recombinant proteins from other manufacturers may not be recognized by our products.
Principle of the Assay
The microtiter plate provided in this kit has been pre-coated with an antibody specific to DARC. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody preparation specific to DARC. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After the TMB substrate solution is added, only those wells that contain DARC, biotin-conjugated antibody, and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution, and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of DARC in the samples is then determined by comparing the O.D. of the samples to the standard curve.
For Use with serum, plasma, and cell culture supernatants. For Research Use Only. Not for use in diagnostic procedures.
Target Information
Atypical chemokine receptor that controls chemokine levels and localization via high-affinity chemokine binding that is uncoupled from classic ligand-driven signal transduction cascades, resulting instead in chemokine sequestration, degradation, or transcytosis. Also known as interceptor (internalizing receptor) or chemokine-scavenging receptor or chemokine decoy receptor. Has a promiscuous chemokine-binding profile, interacting with inflammatory chemokines of both the CXC and the CC subfamilies but not with homeostatic chemokines. Acts as a receptor for chemokines including CCL2, CCL5, CCL7, CCL11, CCL13, CCL14, CCL17, CXCL5, CXCL6, IL8/CXCL8, CXCL11, GRO, RANTES, MCP-1, TARC and also for the malaria parasites P.vivax and P.knowlesi. May regulate chemokine bioavailability and, consequently, leukocyte recruitment through two distinct mechanisms: when expressed in endothelial cells, it sustains the abluminal to luminal transcytosis of tissue-derived chemokines and their subsequent presentation to circulating leukocytes; when expressed in erythrocytes, serves as blood reservoir of cognate chemokines but also as a chemokine sink, buffering potential surges in plasma chemokine levels.
| GENE ID | 2532 |
| SWISS PROT | Q16570 |
| SYNONYMS |
CD234; CCBP1; Dfy; FY; GPD; Duffy Antigen; Ackr1 |
Materials Supplied
| Kit Components | 96 Wells Quantity/Size |
|---|---|
| Pre-coated, ready-to-use 96-well strip plate | 1 plate |
| Plate sealer for 96 wells | 2 |
| Standard |
2 tubes |
| Diluent buffer | 1 bottle |
| Detection Reagent A | 1 bottle |
| Detection Reagent B | 1 bottle |
| TMB Substrate | 1 tube |
| Stop Solution | 1 tube |
| Wash Buffer (30 ℅ concentrate) | 1 tube |
| Product data sheet | 1 copy |
Storage
| Storage | The TMB Substrate, Wash Buffer (30X concentrate), and the Stop Solution should be stored at 4°C upon receipt, while the other items should be stored at -20°C. |
Performance Characteristics
| REPEATABILITY |
Intra-assay Precision (Precision within an assay): 3 samples with low, middle, and high-level DARC were tested 20 times on one plate, respectively. |
| SENSITIVITY | The minimum detectable dose was 0.062ng/mL. |
| ASSAY RANGE | 0.156-10ng/mL |
| SPECIFICITY | This assay has high sensitivity and excellent specificity for the detection of DARC. No significant cross-reactivity or interference between DARC and analogs was observed. Note: Limited by current skills and knowledge, it is impossible to perform all possible cross-reactivity detection tests between DARC and all analogs, therefore, cross reactivity may still exist. |
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