Human Interleukin 21, IL-21 ELISA Kit
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Cytokine with immunoregulatory activity. May promote the transition between innate and adaptive immunity. Induces the production of IgG(1) and IgG(3) in B-cells (By similarity). Implicated in the generation and maintenance of T follicular helper (Tfh) cells and the formation of germinal-centers. Together with IL6, control the early generation of Tfh cells and are critical for an effective antibody response to acute viral infection (By similarity). May play a role in proliferation and maturation of natural killer (NK) cells in synergy with IL15. May regulate proliferation of mature B- and T-cells in response to activating stimuli. In synergy with IL15 and IL18 stimulates interferon gamma production in T-cells and NK cells (PubMed: 11081504, PubMed: 15178704). During T-cell mediated immune response may inhibit dendritic cells (DC) activation and maturation (By similarity).
Fully tested in-house by ABMIUM, or supported by an advanced validation report from a partner reviewed by ABMIUM. Highest confidence. Non-conformities fully supported under the ABMIUM Product Promise.
Quality verified. Independent collaborator or expected-performance data available. Product meets ABMIUM quality standards.
Expected to work based on structural and biochemical data. Not yet directly tested by ABMIUM or a collaborator. No non-conformity support for this combination.
Not recommended for this application or species/sample combination. This may indicate either evidence of unsuitability or that the combination has not been tested and therefore cannot currently be recommended.
Evidence status by application and model.
| Evidence | Serum | Plasma | Cell culture supernatants | Ascites | Tissue homogenates |
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| Compatibility |
This product is manufactured by BT LAB and sold through ABMIUM without relabelling.
ABMIUM supports global orders. Availability, shipping requirements and applicable import arrangements are confirmed before fulfilment where required.
Yes. Send your target, sample, application and experimental conditions through ABMIUM MATCH or technical support.
Unless the listing expressly states otherwise, ABMIUM products are supplied for research use only and are not for diagnostic or therapeutic use.
IL21 identifies interleukin 21 in Homo sapiens (Human). This target record connects NCBI Gene 59067, UniProtKB Q9HBE4 and related ABMIUM catalogue products.
Biological function: IL21 is an immunoregulatory cytokine produced mainly by activated CD4-positive T-cell subsets and natural killer T cells. Through its receptor complex it influences proliferation, differentiation and effector functions across B cells, T cells, natural killer cells and other immune populations.
