Human IL-5 ELISA Kit (48-well)
USD 290.00
3 Weeks*
Specifications
Product Data | |
Format | 48-well strip plate |
Assay Type | Solid Phase Sandwich ELISA |
Assay Length | 3 hours |
Signal | Colorimetric |
Curve Range | 3.9-250pg/ml |
Sample Type | Cell culture supernatant, serum, plasma (EDTA, citrate, heparin) |
Sample Volume | 20 uL |
Specificity | Natural and recombinant Human IL-5 Ligand |
Sensitivity | 2pg/mL |
Reactivities | Human |
Interference | No significant interference observed with available related molecules. |
Components |
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Background | Interleukin-5(IL-5)is a secreted glycoprotein that belongs to the .-helical group of cytokines . Unlike other family members, it is present as a covalently linked antiparallel dimer . The cDNA for human IL-5 encodes a signal peptide and a 115 amino acid (aa) mature protein. Mature human IL-5 shares 70%, 70%, 62%, 71%, 70% and 66%, aa sequence identity with mouse, rat, canine, equine, feline and porcine IL-5, respectively and shows cross-reactivity with mouse IL-5. IL-5 is primarily produced by CD4+ Th2 cells, but also by activated eosinophils, mast cells, EBV-transformed B cells, Reed-Sternberg cells in HodgkinÂ?s disease, and IL-2-stimulated invariant natural killer T cells (iNKT) (1-3, 6-8). IL-5 increases production and mobilization of eosinophils and CD34+ progenitors from the bone marrow and causes maturation of eosinophil precursors outside the bone marrow . The receptor for human IL-5, mainly expressed by eosinophils, but also found on basophils and mast cells, consists of a unique ligand-binding subunit (IL-5 R.) and a shared Signaltransducing subunit, .c . IL-5 R. first binds IL-5 at low affinity, then associates with preformed .c dimers, forming a high-affinity receptor . IL-5 also binds proteoglycans, potentially enhancing its activity . Soluble forms of IL-5 R. antagonize IL-5 and can be found in vivo . In humans, IL-5 primarily affects cells of the eosinophilic lineage, and promotes their differentiation, maturation, activation, migration and survival, while in mice IL-5 also enhances Ig class switching and release from B1 cells (1-3, 9, 10, 15). IL-5 also promotes differentiation of basophils and primes them for histamine and leukotriene release . |
Gene Symbol | IL5 |
Standard Curve |
![]() Representative standard curve for IL-5 ELISA. IL-5 was diluted in serial two-fold steps in Sample Diluent.
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