| Description : |
This gene encodes a member of the common-gamma chain family of cytokines with immunoregulatory activity. The encoded protein plays a role in both the innate and adaptive immune responses by inducing the differentiation, proliferation and activity of multiple target cells including macrophages, natural killer cells, B cells and cytotoxic T cells. Dysregulation of this gene plays a role in multiple immune-mediated diseases including lupus, psoriasis and chronic inflammatory diseases. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. |
| Source : |
E.coli |
| Species : |
Mouse |
| Form : |
Lyophilized from a 0.2μm filtered concentrated solution in 2 × PBS, pH 7.4. |
| Bio-activity : |
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human N1186 T cells is less than 25 ng/ml, corresponding to a specific activity of > 4.0 × 10⁴ IU/mg. |
| Molecular Mass : |
Approximately 15.0 kDa, a single non-glycosylated polypeptide chain containing 129 amino acids. |
| Protein length : |
129 |
| AA Sequence : |
HKSSPQGPDRLLIRLRHLIDIVEQL KIYENDLDPELLSAPQDVKGHCEHA AFACFQKAKLKPSNPGNNKTFIIDL VAQLRRRLPARRGGKKQKHIAKCPS CDSYEKRTPKEFLERLKWLLQKMIH QHLS |
| Endotoxin : |
Less than 0.1 EU/μg of rMuIL-21 as determined by LAL method. |
| Purity : |
>98% by SDS-PAGE and HPLC analysis. |
| Storage : |
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 centigrade as supplied. 1 month, 2 to 8 centigrade under sterile conditions after reconstitution. 3 months, -20 to -70 centigrade under sterile conditions after reconstitution. |
| Reconstitution : |
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤-20 centigrade. Further dilutions should be made in appropriate buffered solutions. |
