Interleukin-21(IL-21) is an approximately 14 kDa cytokine which belongs to the IL-15/IL-21 family. Mature mouse IL-21 shares 66%,59%, 58%, and 88% aa sequence identity with mature canine, human, rabbit, and rat IL-21, respectively. IL-21 is produced by activated T follicular helper cells (Tfh), Th17 cells, and NKT cells. It exerts its biological effects through a heterodimeric receptor complex (IL-21 specific IL-21 R). IL-21 is a cytokine that has potent regulatory effects on cells of the immune system, including natural killer (NK) cells and cytotoxic T cells that can destroy virally infected or cancerous cells. This cytokine induces cell division/proliferation in its target cells. It is required for the migration of dendritic cells to draining lymph nodes .It co-stimulates the activation, proliferation, and survival of CD8+ T cells and NKT cells and promotes Th17 cell polarization. It blocks the generation of regulatory T cells and their suppressive effects on CD4+ T cells.
Product Name:
Mouse Interleukin-21/IL-21 Recombinant Protein (RPES1765)
Product Code:
RPES1765
Size:
10µg
Species:
Mouse
Expressed Host:
E.coli
Synonyms:
Interleukin-21,IL-21,IL21,Il21
Accession:
Q9ES17
Sequence:
Pro25-Ser146
Fusion tag:
N-6His
Endotoxin:
<1.0 EU per µg as determined by the LAL method.
Protein Construction:
Recombinant Mouse Interleukin-21 is produced by our E.coli expression system and the target gene encoding Pro25-Ser146 is expressed with a 6His tag at the N-terminus.
Purity:
> 95 % as determined by SDS-PAGE
Mol Mass:
14.4 kDa
AP Mol Mass:
17 kDa
Formulation:
Lyophilized from a 0.2 µm filtered solution of 20mM PB,150mM NaCl,pH7.4.
Shipping:
This product is provided as lyophilized powder which is shipped with ice packs.
Stability and Storage:
Lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
