Elabscience

Recombinant Human IL-21 protein(His Tag)(active)

Product Code:
 
PKSH034107
Product Group:
 
Recombinant Proteins
Supplier:
 
Elabscience
Host Type:
 
Human
Regulatory Status:
 
RUO
Application:
 
Cell Culture
Shipping:
 
This product is provided as lyophilized powder which is shipped with ice packs.
Storage:
 
Generally 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.
 

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CodeSizePrice
PKSH034107-20ug20ug£210.00
Quantity:
PKSH034107-100ug100ug£472.00
Quantity:
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This product comes from: China.
Typical lead time: 14-21 working days.
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Further Information

Abbreviation:
IL-21
Accession:
Q9HBE4
Activity:
Measure by its ability to enhance IFN gamma secretion in NK-92 cells. The ED50 for this effect is < 10 ng/mL.
Background:
IL-21 is a potent cytokine regulating many cell types of the immune system. IL-21 is produced by activated T follicular helper cells (Tfh), Th17 cells, and NKT cells. Tfh-derived IL-21 plays an important role in the development of humoral immunity through its autocrine effects on the Tfh cell and paracrine effects on immunoglobulin affinity maturation, plasma cell differentiation, and B cell memory responses. IL-21 protein regulates several aspects of T cell function. It co-stimulates the activation, proliferation, and survival of CD8+ T cells and NKT cells and promotes Th17 cell polarization. IL-21 blocks the generation of regulatory T cells and their suppressive effects on CD4+ T cells. In addition to its role in T cell biology, IL-21 also plays a critical role in B cell activation, proliferation, differentiation, and apoptosis. It is also required for the migration of dendritic cells to draining lymph nodes. And IL-21 suppresses cutaneous hypersensitivity reactions by limiting allergen-specific IgE production and mast cell degranulation. In the autoimmune disease Systemic lupus erythematosus (SLE), a link between IL-21 and SLE disease susceptibility and progression was recently reported.
Calculated MW:
15.4 kDa
Endotoxin:
< 0.1 EU per ug of the protein as determined by the LAL method.
Expression Host:
E.coli
Formulation:
Lyophilized from sterile PBS, pH 8.0
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.
Fusion tag:
C-His
Purity:
> 95 % as determined by reducing SDS-PAGE.
Sequence:
MQDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHLSSRTHGSEDS
Target Synonym:
Za11
UNIProt ID:
Q9HBE4

Documents