IL-21

• Description:

  IL-21 is produced by CD4+ T cells in response to antigenic stimulation. Its action enhances antigen-specific responses of immune cells. The biological effects of IL-21 include induction of differentiation of T-cells-stimulated B-cells into plasma cells and memory B-cells, stimulation (in conjuction) 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. Additionally, IL-21 promotes the anti-tumor activity of CD8+ T-cells and NK cells. IL-21 exerts its effect through binding to a specific type I cytokine receptor, IL-21R, which also contains the gamma chain (°C) found in other cytokine receptors including IL-2, IL-4, IL-7, IL-9 and IL-15. The IL-21/IL-21R interaction 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.

• Synonyms:

  Il21

• NCBI Gene ID:

  60505

• UniProt:

  Q9ES17

• Accession Number:

  NP_068554.1

• Accession Number mRNA:

  NM_021782

• Chromosomal Location:

  3 B; 3

• Reactivity:

  Anti-Mouse

• Cross Reactivity:

  Mouse

• Target Antigen:

  Recombinant mouse IL-21

• Clone:

  (#6G53)

• Applications:

  WB

• Purification Method:

  Protein A/G chromatography

• Assay Protocol:

  Centrifuge vial prior to opening. Reconstitute the antibody with 500 µl sterile PBS and the final concentration is 200 µg/ml.

• Form:

  Lyophilized

• Buffer:

  PBS

• Reconstitution:

  PBS

• Storage Conditions:

  Lyophilized samples are stable for 2 years from date of receipt when stored at -20°C. Reconstituted antibody can be aliquoted and stored frozen at < -20°C for at least six months without detectable loss of activity.

• Host or Source:

  Rat

• Isotype:

  IgG2