IL21 Rabbit Polyclonal Antibody
Specifications
| Product Data | |
| Application | ELISA, WB |
|---|---|
| Recommended Dilution | WB: 1 µg/mL ELISA: 1:6,000 |
| Reactivity | Bovine, Horse, Pig |
| Antibody Host | Rabbit |
| Isotype | IgG |
| Clonality | Polyclonal |
| Immunogen | This protein-A purified antibody was prepared from whole rabbit serum produced by repeated immunizations with a recombinant protein raised in yeast, corresponding to amino acid residues 24-152 of bovine IL-21 protein. |
| Specificity | This product was Protein-A purified from monospecific antiserum by chromatography. This antibody is specific for bovine IL-21 protein. A BLAST analysis was used to suggest cross-reactivity with IL-21 from bovine sources based on 100% homology with the immunizing sequence. Based on 92% homology, there is a chance of cross-reactivity to porcine IL- 21, 91% to horse IL-21, 89% to human and dog, 88% to macaque, 84% to platypus and Syrian hamster, 76-79% to mouse, 75% to rat, and 48% to chicken. Cross-reactivity with IL-21 from other sources has not been determined. |
| Buffer | 0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2 Stabilizer: None Preservative: 0.01% (w/v) Sodium Azide |
| Reconstitution Method | Restore with deionized water (or equivalent) - Reconstitution Volume: 100 µL |
| Concentration | 1.0 mg/mL - lot specific |
| Purification | Affinity chromatography on Protein A |
| Conjugation | Unconjugated |
| Storage | Store vial at 4° C prior to restoration. For extended storage aliquot contents and freeze at -20° C or below. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4° C as an undiluted liquid. Dilute only prior to immediate use. |
| Stability | Expiration date is one (1) year from date of receipt. |
| Shipping | Ambient |
| Database Link | |
| Background | Interleukin-21 (IL-21) is a secreted, type-I cytokine with immunoregulatory activity. Human IL-21 shares the common gamma-chain with IL-2, IL-4, IL-7, IL-9, and IL-15 proteins but, in addition, binds to a unique IL-21R alpha chain which triggers a cascade of events which includes activation of the tyrosine kinases JAK1 and JAK3, followed by activation of the transcription factors STAT1 and STAT3. Bovine and human IL-21 have pleiotropic functions and are mainly produced by activated T-cells in response to antigenic stimulation, but target a broad range of lymphoid and myeloid cells of the immune system (T cells, B cells, natural killer (NK) cells and dendritic cells). IL21 is therefore is able to regulate innate and acquired immune responses. The biological effects of IL-21 include induction of differentiation, maturation, and proliferation of T-cells-stimulated B-cells into plasma cells and memory B-cells, stimulation (in conjunction) with IL-4 of IgG production, and induction of apoptotic effects in naive B-cells and stimulated B-cells in the absence of T-cell signaling. Human IL-21 has also been shown to promote the anti-tumor activity of CD8+ T-cells and NK cells. During T-cell mediated immune response, IL21 may inhibit dendritic cells’ (DC) activation and maturation. In synergy with IL15 and IL18, IL21 stimulates interferon gamma production in T-cells and NK cells; with the IL15, it may play a role in proliferation and maturation of natural killer (NK) cells. The open reading frame of the bovine IL-21 cDNA is 459 bp in length and encodes 152 amino acids. The predicted amino acid sequence is 78-81% and 58-67% homologous to the predicted human and murine IL-21 amino acid sequences, respectively. In one study, recombinant bovine IL-21 strongly induced NK cell proliferation using a human NK cell-line, NK0, and enhanced the lymphokine activated killer (LAK) activity of bovine peripheral blood mononuclear cells. In another by the same authors, recombinant bovine mature IL-21 induced the proliferation of human IL-2-dependent cells, ILT-MAT. Anti-IL-21 antibody is ideal for investigators involved in Cancer and Immunology research. |
| Synonyms | rabbit anti-IL21 Antibody, Interleukin-21, IL-21, Interleukin21, Interleukin 21, IL 21 |
| Note | IL-21 is expressed in activated CD4-positive T-cells but not in CD8-positive T-cells, B-cells, or monocytes, and in HL-60 and THP-1 cell lines. This protein-A purified antibody has been tested for use in ELISA and western blotting. Specific conditions for reactivity should be optimized by the end user. Expect a band approximately 15.1 kDa in size corresponding to bovine IL-21 protein by western blotting in the appropriate cell lysate or extract. |
| Reference Data | |
Reviews
Documents
| Product Manuals |
| FAQs |
| SDS |
Citations
*Delivery time may vary from web posted schedule. Occasional delays may occur due to unforeseen
complexities in the preparation of your product. International customers may expect an additional 1-2 weeks
in shipping.
Related Products
- Price:
- Actual Price:
Welcome to OriGene AI!
I'm your AI-powered guide to everything OriGene.
Ask me anything:
- Product specs
- Ordering help
- Technical questions
- How to find exactly what your experiment needs
Prefer a live agent? Connect with us by clicking the green chat icon, as seen in the image below or email our team at custsupport@origene.com.
