Application

Flow Cytometry Analysis: 3.0 µg of this antibody detected IL-21 in human peripheral blood mononuclear cells.

This rabbit Polyclonal Anti-IL-21 Antibody, Cat. No. ABF184 is validated for use in Western Blotting, Flow Cytometry, for the detection of IL-21.

Research Sub CategoryImmunoglobulins & Immunology

Research CategoryInflammation & Immunology

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

General description

Interleukin-21 (UniProt Q9HBE4; also known as IL-21, Za11) is encoded by the IL21 (also known as CVID11) gene (Gene ID 59067) in human. IL-21 is a type I four-alpha-helical bundle cytokine primarily produced by CD4+ T cells and NKT cells. The heterodimeric receptor IL-21R is dominantly expressed by B cells and shares the common cytokine receptor gamma chain (γc) with receptors for IL-2, IL-4, IL-7, IL-9, and IL-15. Studies indicate that IL-21 potently regulates both adaptive and innate immune responses and possesses widely pleiotropic functions. IL-21 has also been linked to autoimmune disorders, allergies, inflammatory diseases, as well as the pathogenesis of cancer. Human IL-21 is initially translated with an N-terminal 22 aa signal peptide sequence, which is later removed to produce the 133 aa mature IL-21.

Immunogen

KLH-conjugated linear peptide corresponding to human IL-21 sequence near the C-terminus.

Epitope: Near C-terminus

Other Notes

Concentration: Please refer to lot specific datasheet.

Physical form

Affinity purified

Purified rabbit polyclonal antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Quality

Evaluated by Western Blotting in human IL-21 transfected HEK293 cell lysate.

Western Blotting Analysis: 2.0 µg/mL of this antibody detected IL-21 in 10 µg of human IL-21 transfected HEK293 cell lysate.

Specificity

Expected to react with pro- and mature IL-21 of both isoform 1 and isoform 2 (IL-21iso).

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Target description

~17 kDa observed. Uncharacterized band(s) may appear in some lysates.