Anti-IL-21 Reference Antibody (Lilly patent anti-IL-21)
Recombinant Antibody
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application ![]()
| FC, E, FTA |
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Primary Accession | Q9HBE4 |
Reactivity | Rat, Cynomolgus, Human, Mouse, Rabbit |
Clonality | Monoclonal |
Isotype | IgG1 |
Calculated MW | 145.32 KDa |
Target/Specificity | IL-21 |
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Endotoxin | < 0.001EU/ µg,determined by LAL method. |
Conjugation | Unconjugated |
Expression system | CHO Cell |
Format | Purified monoclonal antibody supplied in PBS, pH6.0, without preservative.This antibody is purified through a protein A column. |
Name | IL21 (HGNC:6005) |
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Function | 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). |
Cellular Location | Secreted. |
Tissue Location | Expressed in activated CD4-positive T-cells but not in CD8-positive T-cells, B-cells, or monocytes |

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