Mouse Recombinant IL-21 (from E. coli)

About this item

Interleukin 21 (IL-21) is a member of the common-gamma chain family of cytokines that are involved in immunoregulation. IL-21 is normally expressed by activated CD4+ T cells. The IL-21 receptor (IL-21R) activates the JAK/STAT signaling pathway and is expressed on T, B, and natural killer (NK) cells. Within the B cell lineage, IL-21 is a switch factor regulating IgG1 and IgG3 antibody production. IL-21 also cooperates with interleukin 4 (IL-4) for the production of multiple antibody classes in B cells. IL-21 has pleiotropic effects on the proliferation, differentiation, and effector functions of B, T, NK, and dendritic cells.

High Quality
Low Endotoxin
Affordable

A COA is supplied with each product shipped detailing purity, formulation, biological activity, endotoxin levels, reconstitution instructions and recommended storage conditions. This product is for research use only and is not for use in humans.

Caution: For research use only.

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Specifications

Conjugation:
Unconjugated
Protein function:
Cytokine
Protein/peptide type:
Recombinant
Source:
E. coli
Species:
Mouse
Storage conditions:
–20 °C
Endotoxin content:
Endotoxin LAL (EU/µg) ≤0,1
Biological activity:
Bioactivity assay: proliferation of B9 cells, ED50 ≤20 ng/ml, Bioactivity ≥1,0×10⁵ units/mg or 5,0×10⁴ units/mg
Gene ID:
Q9ES17
Reconstitution instructions:
Sterile water at 0.1 mg/ml
Endotoxin-free:
N
Carrier-free:
Y
Protease-free:
N
Animal-free:
N
Protein/peptide name:
IL-21
Purity:
≥95%
Molecular weight:
15,1 kDa
Sequence:
MHKSSPQGPD RLLIRLRHLI DIVEQLKIYE NDLDPELLSA PQDVKGHCEH AAFACFQKAK LKPSNPGNNK TFIIDLVAQL RRRLPARRGG KKQKHIAKCP SCDSYEKRTP KEFLERLKWL LQKMIHQHLS
Endotoxin level:
Low
Formulation:
20 mM sodium bicarbonate, pH 8,5
Nuclease-free:
N
Grade:
RUO
Shipping temperature:
RT
Tested applications:
Bioassay